dailey jars catalouge

TOOLS-120

Dailey® Drilling,and Fishing Tools

• Mechanical Jars• Hydraulic Jars• Hypulse Jar Slingers• Bumper Subs• Shock Absorbers• Motor Thrusters

© 2000. Weatherford. All rights reserved. 2 TOOLS-120 (2/2000)

TABLE OF CONTENT..................................................................................................................................2QUALITY CERTIFICATIONS ......................................................................................................................3

PRODUCTSDAILEY® DNT® DRILLING JAR ...............................................................................................................4DAILEY® L.I. MECHANICAL DRILLING JAR ..........................................................................................7COMPARISON OF MECHANICAL JARS ................................................................................................ 11DAILEY® HYDRAULIC DRILLING JAR ..................................................................................................12COMPARISON OF HYDRAULIC JARS ...................................................................................................16DAILEY® HYDRAULIC DRILLING JARS SPECIAL FEATURES ...........................................................17DAILEY® HYPULSE JAR SLINGER® - DRILLING ..............................................................................21DAILEY® DUAL-ACTING COILED TUBING JAR ..................................................................................23DAILEY® HYPULSE JAR SLINGER® - COILED TUBING...................................................................27DAILEY® HYDRAULIC FISHING JAR ....................................................................................................29DAILEY® HYPULSE JAR SLINGER® - FISHING .................................................................................33DAILEY® LUBRICATED BUMPER SUB ..................................................................................................37DAILEY® CBC-THRUSTER® ...................................................................................................................41DAILEY® R-A-M® SHOCK ABSORBER ................................................................................................44

PUMP OPEN FORCEDNT® DRILLING JARS .............................................................................................................................46L.I. MECHANICAL DRILLING JARS........................................................................................................47HYDRAULIC DRILLING JARS..................................................................................................................48HYPULSE JAR SLINGER® - DRILLING ................................................................................................49DUAL-ACTING COILED TUBING and SLIMHOLE JARS.......................................................................50HYPULSE JAR SLINGER® - COILED TUBING.....................................................................................51HYDRAULIC FISHING JARS ....................................................................................................................52HYPULSE JAR SLINGER® - FISHING ...................................................................................................53LUBRICATED BUMPER SUBS ..................................................................................................................54CBC-THRUSTER® .....................................................................................................................................55R-A-M® SHOCK ABSORBER ..................................................................................................................56

Table of Content

© 2000. Weatherford. All rights reserved. 3 WFT-MQS (1/2000)

QUALITY CERTIFICATIONS

API Spec Q1, 5th Edition “Certified Quality System”License No. 7-0224Weatherford’s Dailey Manufacturing Facility - Conroe, Texas, USA

ISO 9001/94 Certified Quality System by Lloyd’s Register Quality AssuranceWeatherford’s Dailey Facility - Aberdeen, Scotland

abcdefghijkISO 9002/94 Certificate of Quality Assurance by ICONTECColombia Petroleum Services Corp, Bogota, Colombia

DAILEY®

DNT® DRILLING JAR

Lower Connector s

Polished Stem

Upper Packing Body

Bearing Mandrel

Bearing Cage

Jay Stem

Barrel

Torque Spring

Spring Stem

Balance PistonWash Pipe

Lower Packing Body

ss

ss

ss

ss

ss

ss

sUpper Connector

Jay Rollers

© 1999. Weatherford. All rights reserved. 5 WFT-DNT_99 (10/99)

DAILEY®

DNT® DRILLING JAR

* Tensile and torsional yield values are calculated per A.P.I. RP7G based on nominal dimensionsand the published yield strength of the material and do not constitute a guarantee, actual or implied.

U.S. Patent No. 4,715,454

The Dailey® No Torque (DNT) Mechanical Drilling Jar was specifically designed to eliminate torque problems associated withhigh angle drill strings and the resultant hole drag they produce. Utilizing the best features of two proven technologies, the DNTJar offers the kind of reliability and standard setting performance you expect from the leader in downhole technology.

Combining proven mechanical technologies of the Dailey® L.I. Drilling Jar’s spring-loaded roller triggering system with the fieldproven triggering isolation capabilities of our Hydraulic Drilling Jar’s involute spline mechanism, has created a reliable solution totorque-related downhole jar problems.

The DNT Jar allows upward and downward drill string tripping, using factory preset triggering loads or customer specifiedloads for specific or specialized downhole situations. Each DNT Jar is delivered ready to go. When drill string sticking occurs, youmerely pick up or slack off to the preset triggering load to activate the jar. After triggering, you can instantly recock by picking upor slacking off to the cocking weight.

DNT MECHANICAL DRILLING JAR SPECIFICTAIONSOutside Diameter (in.) 4 3/4 6 1/4 7 3/4

Inside Diameter (in.) 2 2 1/4 2 3/4

Tool Joint Size (API)NC-383 1/2 IF

NC-464 1/2 XH4 1/2 IF

6 5/8 Reg

Tensile Yield* ( x 1000 lbs.) 402.6 543 958

Torsional Yield* ( x 1000 ft. lbs.) 24 50 100

Factory Set Up/Down Stroke (lbs.)69,70037,600

94,30056,400

102,50042,300

Max. Overpull Up/Down (lbs.) 75,000 118,000 125,000

Approx. Length Extended (ft. - in.) 33' - 0" 33' - 0" 34' - 6"

Approx. Weight (lbs.) 1,350 2,500 4,100

Free Travel Upstroke (in.) 8 7 1/8 8

Free Travel Downstroke (in.) 8 8 8

Total Stroke (in.) 16 15 1/8 16

Max. BHT ( °F ) 325 325 325

Pump Open Area (sq. in.) 8.9 12.6 18.7

PROPER OPERATIONS

GENERAL INFORMATION:DNT is the acronym for DAILEY NO TORQUE. The letters "DNT" can be found approximately 4" above the shoulder of the mandrel.This is the only distinguishing marking on the jar from the standard L.I. Jar as they have the same appearance.

DO NOT USE TONGS TO UNCOCK OR STRETCH THE DNT JAR OPEN.

DNT Jars are delivered with a "mandrel clamp". Leave the "mandrel clamp" in place until the jar is ready to go through the rotary.

If the DNT Jar comes out of the hole in the upstroke or stretched open position (16" of mandrel showing) replace "mandrelclamp" and rack back. If the DNT Jar comes out of hole in the neutral or cocked position (8" of mandrel showing) leave jarcocked and rack back. To run back in hole, leave cocked and proceed.

DO NOT USE TONGS AND TRY TO UNCOCK OR STRETCH THE DNT JAR OPEN.

NEVER ATTEMPT TO CLOSE OR OPEN THE DNT JAR ON THE RIG FLOOR.

© 1999. Weatherford. All rights reserved. 6 WFT-DNT_99 (10/99)

DRILLING TORQUE DOES NOT AFFECT THE DNT DRILLING JAR.While in the hole and sticking occurs, simply pick-up or slack-off to preset tripping weight and the jar will go off either up or down.

JAR PLACEMENT IN THE STRING:This jar can be run in tension or compression. It is recommended that 15-20% safety factor in weight on bit be run above or below

the jar to insure the tool is not in the weight transition zone.Caution should be exercised not to run the jar directly between drill collars and heavy weight drill pipe, or directly between collar

strings of differing O.D. as these O.D. size transition points are where excessive stress occurs. Run the same size collars or heavyweight drill pipe directly above and directly below the jar.

Avoid running the jar below reamers, stabilizers, key-seat wipers, or any tool with a larger O.D. than the jar itself as this may restrictjar function.

OPERATION OF THE DRILLING JAR

UPWARD TRIPPING OF JAR DOWNWARD TRIPPING OF JAR

COCK JAR: Slack-off on drill string weight above jar to COCK JAR: Slack-off on drill string to cocked position.cocked position.UPWARD STROKE: Pull on drill string until jar setting is DOWNWARD STROKE: Slack-off on drill string untilreached to trip jar. jar setting is reached to trip jar.RECOCK JAR: Slack-off on drill string to slightly below the RECOCKING FOR JARRING DOWN: Pick up drillweight of the string above jar. Usually there will be a noticeable string until slightly above "weight above jar" is reached.sign, such as a bobble of the weight indicator needle, when jar Free travel and a slight movement on the weight indicatorjar completes its free travel and recocks. will be noticed when the jar recocks.

EXAMPLE OF: EXAMPLE OFUPWARD TRIPPING OF JAR (in lbs): DOWNWARD TRIPPING OF JAR (in lbs):

250,000 Total indicator weight (string, block, hook, swivel) 250,000 Total indicator weight (string, block, hook,

swivel)

-40,000 Weight below the jar -40,000 Weight below jar210,000 Weight above the jar 210,000 Weight above jar+92,000 Jar setting for up-jarring action -37,000 Jar setting for down-jarring action302,000 173,000+20,000 Hold drag picking up -20,000 Hole drag

322,000 Indicator reading to trip jar upward 153,000 Indicator reading to trip jar downward

Slack-off from 200,000 to 190,000 lbs. to recock the jar. Pick-up from 220,000 to 240,000 lbs. to recock the jar.

The outlined "Upstroke" and "Downstroke" and "Cocking" weights can vary with hole drag, and allowances must be made tocompensate for this.

NOTES: The downward stroke of the jar is not as noticeable in most cases as the upward stroke. In many cases, particularly in deepholes and when using a small jar, the downward tripping can be detected by the weight indicator only.In fluid holes, pump pressure can affect the down-jarring results. If possible, reduce the pump to idle before attempting to cock andjar down.

RECOMMENDED PROCEDURE TO CHECK JAR:Each trip out of the hole, wash well around the mandrel and through the holes and slots in the upper part of the case to keep mudfrom hardening or settling in body (between the mandrel and the case). The hardened mud can effect the proper operation of thejar.

Check all roller welds and torque pins for possible oil leakage. Should you suspect a wash out, hook up kelly and pump through thetool under pressure and check for leaks.

DAILEY®

DNT® DRILLING JAR

Interpretation of data presented is responsibility of individuals using data. Weatherford cannot be held responsible for any loss or damage to any property whatsoever; injury or death to any persons whatsoever; orany claims, demands, actions, complaints, proceedings, judgement, losses damages, compensation, liabilities, costs or charges however arising from the unauthorized or undirected use of these specifications.

DAILEY®

L.I. MECHANICALDRILLING JAR

Upper Connector

Lower Connector

Polished Stem

Upper Packing Body

Jay Stem

Jay Rollers

Barrel

Torque Spring

Spring Stem

Wash Pipe

Lower Packing Body

ss

ss

ss

ss

ss

s

© 1999. Weatherford. All rights reserved. 8 WFT-LI_99-A (10/99)


PROPER OPERATIONS


The Dailey® L.I. Mechanical Drilling Jar offers reliability and standard setting performance. It incorporates aunique patented mechanism that will trigger immediately after the required pull or weight has exceeded the factorysetting. NO DELAYS. NO WAITING. The L.I. Jar operates over a broad range of downhole temperatures andpressures while maintaining its versatility and ease of operation.

The L.I. Jar is made with a heavy wall mandrel for maximum torque and minimum backlash. Internal componentsare especially designed to withstand abrasion and corrosion in virtually any downhole environment. Dailey’s patentedspring loaded roller trigger system has served as the industry standard for mechanical jars for over 50 years. Triggeringeither up or down as required to free stuck drill pipe, the L.I. Jar is also designed to be fully adjustable downhole. It canbe easily recocked for extended jarring operations.

O u ts id e D ia m e te r ( in. ) 4 3 /4 6 1 /4 6 7 /8 7 3 /4

In s id e D ia m e t e r ( in. ) 2 2 1 /4 2 1 /2 2 3 /4

T o o l J o in t S iz e (A P I) N C -3 83 1 /2 IF

N C -4 64 1 /2 X H4 1 /2 IF

5 1 /2 R e g . 6 5 /8 R e g

T e n s ile Y i e l d * ( x 1 0 0 0 lb s .) 4 4 0 7 4 0 9 6 2 1 ,1 4 8

T o r s io n a l Yie ld * ( x 1 0 0 0 ft. lb s .) 1 5 2 7 .2 4 6 6 6 .3

U p S tro k e ( lb s .) F a c to ryD o w n S tro k e ( lb s .) S e t t ing s

6 9 ,7 0 03 2 ,9 0 0

9 4 ,3 0 03 7 ,6 0 0

9 8 ,4 0 04 2 ,3 0 0

1 0 2 ,5 0 04 2 ,3 0 0

M a x . O v e rp u ll U p /D o w n ( lb s .) 7 5 ,0 0 0 1 1 8 ,0 0 0 1 2 0 ,0 0 0 1 2 5 ,0 0 0

A p p ro x . L e n g th E x te n d e d(f t . - in.)

3 0 ' - 6 " 3 4 ' - 0 " 3 4 ' - 6 " 3 5 ' - 6 "

A p p ro x . W e ig h t ( lb s .) 1 ,3 4 0 2 ,5 0 0 3 ,1 5 0 4 ,0 0 0

F r e e T r a v e l U p s tro k e ( in. ) 8 5 /8 7 1 /8 7 7 /8 7 3 /4

F r e e T r a v e l D o w n s tro k e ( in. ) 8 8 8 8 1 /4

M a x . B H T ( °F ) 3 2 5 3 2 5 3 2 5 3 2 5

P u m p O p e n A r e a ( s q . in.) 7 .7 1 1 .0 1 4 .2 1 7 .7

NOTICE: DO NOT TURN MANDREL OVER 1/8 TURN TO THE LEFT.

GENERAL INFORMATION:The L.I. Mechanical Drilling Jar is a self-cocking jar that trips immediately after applying the required pull or weight.There is no waiting for jarring action as is the case with hydraulic jars.The L.I. Jar is delivered to the location in the cocked position (approximately eight inches of mandrel exposed) and usuallywill be cocked when it is pulled out of the hole.It is recommended that the jar be uncocked to run in the hole. However, the jar may be run in the cocked position in certaincircumstances, such as fishing operations.

UNCOCKING THE L.I. MECHANICAL DRILLING JAR: With drill pipe or collars, to be used above the jar,set the slips on the body below the mandrel. Unlock the rotary. Using two sets of tongs, rotate the mandrel 1/8 turn tothe left. Hold the 1/8 turn and pick up on the string to open the jar. At this point there will be approximately sixteen inchesof mandrel exposed. Pull the slips and run the jar in the hole.

DAILEY®

L.I. MECHANICAL DRILLING JAR


JAR PLACEMENT IN THE STRING: This jar can be run in tension or compression. It is recommended that aminimum 15-20% safety factor in weight on bit be run above or below the jar to insure the tool is not in the weight transitionzone. Caution should be exercised not to run the jar directly between drill collars and heavy weight drill pipe, or directlybetween collar strings of differing O.D. as these O.D. size transition points are where excessive stress occurs. Run thesame size collars or heavy weight drill pipe directly above and directly below the jar. Avoid running the jar below reamers,stabilizers, key-seat wipers, or any tool with a larger O.D. than the jar itself as this may restrict jar function.

DOWNWARD TRIPPING OF JARCOCK JAR: Slack off on drill string to the cockedposition.DOWNWARD STROKE: Slack off drill string until jarsetting is reached to trip jar.RECOCK JAR: Pick up drill string until slightly above“weight above jar” is reached. Free travel and a slightmovement on the weight indicator will be noticed whenthe jar recocks.EXAMPLE:

250,000. lbs. Total indicator weight (string, block, hook,swivel)

-40,000. Weight below jar210,000. Weight above jar-37,600. Jar setting for jarring down172,400.-20,000. Hole drag152,400. Indicator reading to trip jar downward.

Pick up from 220,000 to 240,000 lbs. to recock jar.

UPWARD TRIPPING OF JARCOCK JAR: Slack off drill string weight above jar to thecocked position.UPWARD STROKE: Pull on drill string until jar setting isreached to trip jar.RECOCK JAR: Slack off drill string to slightly below theweight of the string above the jar. There should be anoticeable sign, such as a bobble or the weight indicatorneedle, when the jar completes the free travel and cocks.EXAMPLE:

250,000. lbs. Total indicator weight (string, block, hook, swivel)-40,000. Weight below jar210,000. Weight above jar+94,300. Jar setting for jarring up304,300.+20,000. Hole drag324,300. Indicator reading to trip jar upward.

Slack off from 200,000 to 190,000 lbs. to recock jar.

OPERATION OF THE DRILLING JAR

NOTES: A) Downward stroke is not as noticeable in most cases as the upward stroke. In deep holes and when usinga small jar, the downward tripping can be detected by the weight indicator only. B) In fluid holes, pump pressure affectscocking and down-jarring. Reduce pump to idle before attempting to cock and jar down. C) Outlined "Upstroke,""Downstroke," and "Cocking" weights can vary due to hole drag and torque friction. Upon becoming stuck, drilling torquemay be trapped in string above jar due to torque friction. Torque trapped in this manner will require additional pull to tripthe jar. When this condition occurs, apply left-hand torque to string to make the jar trip. Any left-hand torque appliedto the string should be applied 1/8 turn at a time until desired effect is obtained. Once trapped torque is removed fromdrill pipe, the tripping action of the jar will return to its original setting.

HEAVIER OR LIGHTER TRIPPING OF JAR: To make the jar trip harder, apply and hold right-hand torque todrill string. Torque should be applied 1/2 round at a time until the desired setting is attained. Too much right-hand torquemakes it impossible to pull enough to trip the jar. If too much right-hand torque is applied, simply release the torque andthe jar will return to its original setting.

To make the jar trip lighter, apply and hold left-hand torque to the drill string. Torque should be applied 1/2 round at atime until the desired setting is attained. Too much left-hand torque will hold the jar out of jay and prevent the jar fromhaving much jarring effect. In this case, there will be sixteen inches of free travel. To remedy this situation, simply releasethe left-hand torque and the jar will automatically return to the original setting.

DAILEY®



RECOMMENDED PROCEDURE TO CHECK JAR: Each trip out of the hole, wash well around the mandreland through the holes and slots in the upper part of the case to keep mud from hardening or settling in the body (betweenthe mandrel and the case). The hardened mud can effect the proper operation of the jar.

The jar mechanism may be tested each trip out. Use two sets of tongs and repeat the procedure for stretching the jaras explained in the section "UNCOCKING THE L.I. MECHANICAL DRILLING JAR". Make sure the mandrelwill stroke both directions from the cocked position.

Check all roller welds and torque pins for possible oil leakage. Should you suspect a wash out, hook up kelly and pumpthrough the tool under pressure and check for leaks.

NOTE: These operating instructions are subject to modification. The most current operating instructions are availablein the information packet which accompanies each L.I. Mechanical Drilling Jar.

DAILEY®



© 2000. Weatherford. All rights reserved. 11 WFT_LI-2-DNT (03/2000)

Dailey® L.I. Mechanical Jar Dailey® No Torque "DNT" Jar

The letters "DNT" aremilled into the mandrel.

COMPARISON OFMECHANICAL JARS

DAILEY®

HYDRAULICDRILLING JAR

Spline Housing

Connector Hous

Flow Mandrel

Upper Pressure PisPressure Housing

Triggering Valves

Lower Pressure Piston

Wash Mandrel

Piston Stop

Bottom Connec-tor

Up Anvil

Down Anvil

Spline Mandrel s

Hammers

Balance Piston

ss

ss

ss

ss

ss

ss

Balance Housing

s

© 1999. Weatherford. All rights reserved. 13 WFT-HDJ_99 (10/99)

Utilizing a patented hydraulic time delay/mechanical tripping system, the Dailey® Hydraulic Drilling Jar combinesdownhole reliability and long operating life under a wide range of drilling conditions and hostile environments. Combiningthe best of both mechanical and hydraulic technologies, the Hydraulic Drilling Jar design features a one piece involutespline mandrel for maximum torque capacity with minimum backlash, and a fluid-isolated high pressure chamber thatlubricates and isolates the Jar’s moving seals, impact shoulders and mandrel, from the destructive effects of downholeformation cuttings, sand or other debris.

The Hydraulic Drilling Jar design is virtually unaffected by downhole temperatures and generates little heat itselfwhen jarring, yet it delivers virtually the same time delay in deep, hot holes as it does on the surface. The design alsoeliminates the need for bleed-off compensation. Therefore the trip load will be the same as the brake load. Dailey®

Hydraulic Jars are delivered ready to go. The jarring load is controlled and varied at the surface by controlling theoverpull. To hit harder, pull harder. To hit lighter, pull lighter.

Outside Diameter (in.) 4 3/4 4 3/4 6 1/4 6 1/2 7 7 3/4 8 9 1/2

Inside Diameter (in.) 2 1/16 2 1/4 2 1/4 2 3/4 2 3/4 3 3 3

Tool Joint Size (API)NC-383 1/2 IF

NC-383 1/2 IF

NC-464 1/2 XH

NC-504 1/2 IF 5 1/2 FH 6 5/8 Reg 6 5/8 Reg. 7 5/8 Reg

Tensile Yield* ( x 1000 lbs.) 436 500 832 934 1,200 1,600 1,750 2,300

Torsional Yield* ( x 1000 ft. lbs.) 21.2 20 49.3 56.2 76.4 76.4 105 160

Max. Overpull Up/Down ( x 1000 lbs.) 95 85 200 175 220 260 300 500

Approx. Length Extended (ft. - in.) 32' - 0" 32' - 0" 33' - 0" 33' - 0" 33' - 0" 33' - 0" 33' - 0" 33' - 0"

Approx. Weight (lbs.) 1,200 1,200 2,050 2,400 3,000 3,500 3,800 5,500

Free Travel Up/Down Stroke (in.) 5 5 1/2 6 1/4 6 1/2 6 1/2 7 7 7

Total Stroke (in.) 13 1/2 15 16 1/2 17 17 19 1/2 19 1/2 19 1/2

Max. BHT ( °F ) 400 400 400 400 400 400 400 400

Pump Open Area (sq. in.) 9.6 10.3 15.9 19.6 23.8 28.3 28.3 38.5

PROPER OPERATIONS

Install the clamp on the jar with the jar in tension and with the lock pin end up. The latch spring should return the latchto the closed position. Push the lock pin down until the pin head engages the lug. The bottom of the pin can be seenprotruding through the lower lug and the latch will be locked closed when the lock pin is fully seated. Install the shippingstrap around the clamp.

MANDREL CLAMP The HDJ will arrive on location with a hinged Mandrel Clamp (Dog Collar) installed. Leave the Mandrel Clampinstalled until the HDJ is ready to go through the rotary. To remove the mandrel clamp, put the jar in tension. Removethe shipping strap and pull the lock pin up until the U shaped latch can be opened. Spread the two body halves andremove the clamp from the jar. Before installing the clamp on the jar, visually inspect all parts for cracks or breakage.

WARNING: DO NOT USE CLAMP IF IT IS DAMAGED OR CANNOT BE OPERATED AS DESCRIBED. FAILURETO OPERATE AS DESCRIBED MAY RESULT IN SERIOUS INJURY.


U.S. Patent No. 4,361,195 and 5,086,853

DAILEY®

HYDRAULIC DRILLING JAR


OPENING THE HDJ ABOVE THE ROTARYIf the HDJ should become cocked (9 inches of polished mandrel exposed) on the surface, it can be easily triggeredopen with a light overpull. Support the weight below the HDJ in the slips and pick up 5,000 lbs. to 10,000 lbs. with theelevators. At this extremely low load it will require about 5 minutes for the HDJ to trigger. (With the HDJ fullyextended there will be about 17 inches of polished mandrel exposed.)

JAR PLACEMENT IN THE STRINGThe HDJ can be run in tension or compression. It is mandatory that a minimum 15% safety factor in string weight berun between the HDJ and the weight transition zone. Never run the HDJ as a crossover between the drill collars andthe heavy wall pipe, or between collars of different O.D.'s, because these transition points are where excessive stressoccurs. Run the same size collar or heavy wall drill pipe directly above and directly below the jar. Avoid running theHDJ below reamers, stabilizers, key-seat wipers, or any other tool with a larger O.D. than the HDJ since this mightrestrict the jarring function.

DRILLING WITH THE DAILEY® HYDRAULIC DRILLING JAR IN COMPRESSIONThe HDJ will normally be in tension when the bit reaches bottom and should be triggered down with a light load in orderto avoid any chance of damage to the bit. The recommended procedure is to begin rotating, slack off enough weight sothat the jar is only slightly in compression (5,000 lbs. to 15,000 lbs.), and after the jar falls through, slack off to the finaldrilling weight. Since the jar will cock whenever the string is picked up off bottom, this procedure should befollowed each time a connection is made.

RUNNING INThe HDJ should always be kept in tension while running in to guard against inadvertent triggering. The HDJ will cockwith only slight resistance if it is put in compression. Use care to start and stop slowly when running in to avoid a "yo-yo" effect which could cause the HDJ to cock. Run through tight spots and dog legs slowly. Be aware that anythingthat restricts the I.D. of the pipe or collars below the HDJ (float valves, survey tools, etc.) could cause the collars to"float" if the pipe is lowered too rapidly and could result in cocking the HDJ. If it is suspected that the HDJ hasinadvertently cocked, suspend the drill pipe in the elevator long enough for the HDJ to trip open (due to the weight ofthe collars suspended below it) before running in the hole.

If the clamp cannot be used, stand the jar and the other components of the stand back in the normal fashion. However,do not release the elevator until the jar closes. To close the jar, slack off and the jar will go to the cocked position withabout 9 inches of polished mandrel exposed. Slack off about 9 inches more and wait until the jar falls to the closed position.This will require about 5 minutes with drill collars above the jar and longer if the jar is at the top of the stand. When thejar is closed, there is 1 to 2 inches of polished mandrel exposed. When the stand with the jar is picked up, the jar willgo to the cocked position. Suspend the stand about 12 inches above the floor and wait for the jar to fall open. This willrequire about 5 minutes with drill collars below the jar and longer if the jar is at the bottom of the stand.

CAUTION: NEVER RUN THE DAILEY® HYDRAULIC DRILLING JAR IN CLOSE PROXIMITY TO AN-OTHER DAILEY® HYDRAULIC DRILLING JAR, OR ANY OTHER TYPE OF JAR.

JARRINGNo presetting or adjustment is required before running or prior to jarring. The HDJ is totally controlled from the surfaceusing only axial motion. From the neutral position, pull up to the desired load and wait a few seconds for the HDJ to jarup, or slack off to the desired load and wait a few seconds for the HDJ to jar down. After impact, return the HDJ toneutral and it is immediately ready to jar in the same or in the opposite direction. To hit harder pull harder, to hit lighterpull lighter. There is no other operator action required and the HDJ can be hit in any sequence desired (up only, downonly, or up and down).

DAILEY®



The waiting time between setting the brake and the jarring action will be in the range of 10-60 seconds and will not beaffected by changes in down-hole temperature or hydrostatic pressure or the number of times the HDJ is actuated. Itis never necessary to "warm-up" the HDJ or to circulate to "cool it off". DRILLING TORQUE DOES NOT EFFECTTHE HDJ. Full torque in either direction can be transmitted at all times without affecting either the magnitude or thetime delay of the jarring action.

FINDING THE NEUTRAL (OR COCKED) POSITION It is not necessary to slack off (or pull up if jarring down) an exact amount of weight or to control the travel of the jarto recock. The proper travel will occur automatically if sufficient weight is slacked off (or pulled up) to allow the necessarytravel at the tool. NOTE: When recocking to jar again in the same direction the time delay of the next blow WILL NOTbe affected by overtravel in the direction of neutral.

RECOMMENDED PROCEDURE TO CHECK THE HDJEach trip out of the hole, wash the mud from the polished mandrel and from inside the bottom connection. Check thepolished mandrel carefully for any sign of corrosion, pitting, or flaking of the plating. REPLACE THE MANDRELCLAMP while the jar is still in tension.

RACKING BACKWhen the jar comes through the ratary, INSTALL THE MANDREL CLAMP WHILE THE TOOL IS STILL INTENSION. As a safety precaution, do not stand the jar in the rack with drill collars above it. If racked back as partof a stand, the jar should be the top joint. This will reduce the load on the mandrel clamp to a minimum.

Contact your Weatherford representative if you have any questions or if assistance is required concern-ing the proper operation of the Dailey® Hydraulic Drilling Jar.

DAILEY®



© 1999. Weatherford. All rights reserved. 16 WFT_LI-2-DNT (03/2000)

C

B

A

C

B

ASerial No.Serial No.

Split FlexJar

FF Flex Jar

Jar O.D.(inches)

Jar I.D.(inches)

JarType

"A"Length

"B"UpperConn.

"C"BottomConn.

4 3/4 2 1/16 Std. 16' - 6" NA 1' - 10"

4 3/4 2 1/4 BigBore 30' - 0" 6' - 6" 5' - 8"

5 1/4 2 1/4 Std. 30' - 0" 6' - 6" 5' - 8"

FF 6 1/4 2 1/4 Std. 25' - 0" 6' - 6" 1' - 9"

6 1/2 2 3/4 BigBore 32' - 6" 6' - 4" 6' - 9"

7 2 3/4 Std. 32' - 6" 6' - 6" 6' - 8"

7 3/4 3 Std. 32' - 6" 6' - 4" 5' - 4"

8 3 Std. 31' - 6" 6' - 4" 4' - 8"

9 1/2 3 Std. 32' - 6" 6' - 7" 4' - 10"

2 3/4" to 3" I.D.

2 3/4" to 3" I.D.

Refer to Chart

2 3/4" to 3" I.D.

Lengths are affected by connection reworks and may very from these dimensions.

COMPARISON OFHYDRAULIC JARS

© 1999. Weatherford. All rights reserved. 17 WFT-hdj-sf_99 (10/99)

The Dailey Hydraulic Drilling Jar (HDJ) is a double acting jar designed for simple operation, variable hitting loadsand extended periods of continuous jarring. It features a patented hydraulic time delay/mechanical tripping systemthat overcomes the aggravation of short service life and inconsistent performance usually experienced with conven-tional hydraulic jars, without sacrificing any of their inherent versatility or simplicity of operation.

FEATURES

Straight Pull Operation/Variable Loads - The Dailey HDJ can be tripped in either direction and requires nosurface adjustment or downhole manipulation to vary the hitting load or change the direction of jarring. Simply sitdown enough weight to insure that the jar is cocked, pull up (slack off) to the desired jarring load and wait a fewseconds for the jar to trip. To hit harder pull harder, or to hit lighter pull lighter. As with a conventional hydraulic jar,the jarring load is controlled and varied at the surface by controlling the overpull. There is no other operator actionrequired and the jar can be activated in any sequence desired (up only, down only or up and down).

Consistent Time Delay - In the normal range of operation, the time delay from when the overpull is first applieduntil the jar trips, will be in the range of 10-60 seconds. Although the actual time delay will vary slightly with moreor less overpull, it will not be significantly affected by bottom hole temperature (up to 400 F.) or hydrostatic pres-sure. This means that at any given overpull, the time delay will be consistent and repeatable from the first actuationuntil the last. Also, there is never any delay when starting to jar, because unlike conventional hydraulic jars, it isnever necessary to “warm-up” a Dailey HDJ.

No Heat Build-Up - It is characteristic of conventional hydraulic jars that they generate tremendous heat whenoperation. This causes a dramatic increase in the temperature of the hydraulic fluid inside the jar, which can thenlead to fast hitting times, shutting down or circulating to “cool off” the jar, or premature seal failures. The DaileyHDJ, on the other hand, avoids these temperatures related problems because its patented hydraulic time/delaymechanical tripping system generates almost no heat. Two of the benefits of jarring without generating heat aremuch longer periods of operation and a very consistent time delay.

No Bleed-Off - The mechanical tripping feature of the Dailey HDJ virtually eliminates load bleed-off after thebrake has been set, which in turn, eliminates the need for the dangerous practice of overpulling the jar to compen-sate for bleed-off. This feature also makes the Dailey HDJ’s tripping load virtually independent of the speed atwhich the load is applied. Without bleed-off, the load at which the jar trips will be the load shown when the brakewas set, and it does not matter whether pull-up is fast or slow.

Simple Metering Mechanism - The hydraulic metering mechanism of the Dailey HDJ has NO moving parts.It incorporates large flow paths and it is protected from contamination.

Simple, Rugged Construction - The Dailey HDJ incorporates a heavy wall, one piece mandrel with involutesplines for maximum torque capacity and minimum backlash. The splines and all other working parts of the tool areenclosed within the hydraulic chamber where they are fully protected and lubricated.

Unaffected by Drilling Torque - Full torque in either direction can be transmitted at all times without effectingthe magnitude or the time delay of the jarring operation.

Protected Seals - The unique design of the Dailey HDJ protects the high pressure moving seals and seal sur-faces from the abrasive and corrosive effect of the well fluids by totally enclosing that portion of the jar within alarger hydraulic chamber. Only low pressure or static seals are exposed to well fluids.

DAILEY® HYDRAULIC DRILLING JARSSPECIAL FEATURES


PROTECTED IMPACT SHOULDERS - When conventional hydraulic jars are impacted in the closed position,the impact usually occurs between a shoulder just below the box thread of the mandrel and an up facing shoulder onthe housing. This can result in tool damage because any debris (cuttings, shaving, sand, etc.) in the well annulus canbe forced into the high pressure seals or into the spline mechanism just below the impact shoulders, and damagingthe shoulders themselves. The design of the Dailey HDJ has eliminated this mode of failure by placing both the upand down impact surfaces inside the hydraulic chamber where they are protected from damage.

FAST RECOCKING - No delay in recocking - simple return to neutral and jar again in either direction.

SHOP TORQUED - All housing connections are machine tightened to the charted make-up torque to assure noaccidental back-offs downhole.

SHOP TESTED - All tools are tested after redressing to insure that they are fully operational.

POINTS OF CAUTION

JARS IN TANDEM - Never run the Dailey HDJ in close proximity to another Dailey HDJ or any other typejar.

MANDREL CLAMP - The tool is shipped with a split mandrel clamp attached to keep the tool in the extendedposition until it is suspended from the elevators. DO NOT REMOVE THIS CLAMP UNTIL THE TOOL ISIN TENSION!

MANDREL - Protect the exposed section of the mandrel under the mandrel clamp. DO NOT TONG ONTHIS SURFACE OR PLACE THIS SURFACE IN THE SLIPS!

INADVERTENT COCKING - The tool should always be kept in the extended position when off bottom,especially when above the rotary. The tool will recock without resistance if not kept in tension or if the mandrelclamp is not in place. If the tool is inadvertently cocked on the surface, it can easily be tripped open with as little as5,000 lbs. At this extremely low load, it requires approximately three (3) minutes for the jar to trip. If it appears thatthe tool has inadvertently recocked when going in the hole or when on bottom, simply pull up off bottom a few feetand the jar will trip open due to the weight suspended below it.

HANGING IN THE SLIPS - The slips should be placed only on the designated areas.

TONG SPACE - DO NOT TONG ANY PLACE ON THE TOOL EXCEPT THE TOP AND BOTTOMCONNECTIONS. All service connections are machine tightened before delivery.

PUMP OPEN AREA FOR HYDRAULIC DRILLING JARS

Jar OD 4 3/4" 4 3/4" 6 1/4" 6 1/2" 7" 7 3/4" 8" 9 1/2"

Jar ID 2 1/16" 2 1/4" 2 1/4" 2 3/4" 2 3/4" 3" 3" 3"

Pump Open Area (sq. in.) 9.6 10.3 15.9 19.26 23.8 28.3 28.3 38.5

DAILEY HYDRAULIC DRILLING JARSSPECIAL FEATURES


OPERATING PRINCIPLE

When jarring, the mandrels move in response to the strain applied at the surface by the draw works, while thehousings remain stationary. The movement of the mandrels, in either direction, is resisted by two pressure pistonsthat oppose each other to define a high pressure chamber. Located between the two pressure pistons is a normallyclosed “triggering” valve (consisting of upper and lower valve halves) which controls the “dumping” of fluid fromthe pressure chamber. To jar upward, the lower pressure piston moves upward with the mandrels, while the upperpressure piston is prevented from moving by a shoulder in the housings. Sufficient pressure is generated betweenthe pressure pistons to resist the applied pull until the triggering valve is mechanically opened by an actuatingdevice. The time delay (from when the strain is applied until the triggering valve opens) is achieved by a hydraulicmetering mechanism that controls the speed at which the lower pressure piston moves toward the upper pressurepiston. The lower pressure piston must move a predetermined distance before the actuating devices contact theirrespective valve halves and force the triggering valve to open. This built in delay is designed to allow the operatorsufficient time to pull to the desired load prior to the triggering valve opening. When the triggering valve opens, thehigh pressure fluid in the pressure chamber that was resisting the overpull, is “dumped” from the high pressurechamber to the hydrostatic pressure chamber, and there being no further resistance to motion of the mandrel relativeto the housing, the jar travels until the hammer impacts the anvil. To jar upward again, the tool is returned to neutralby lowering the drill string and another upstrain applied. This action may be repeated as often as necessary.

When jarring downward, a similar but opposite action occurs; i.e., the upper pressure piston moves down with themandrels in response to the weight applied from the drill string above, while the lower pressure piston is preventedfrom moving by a shoulder on the housings. In down jarring, triggering occurs when the upper pressure piston hasmoved sufficiently toward the lower pressure piston to force open the triggering valve. The separate functions ofjarring upward or downward may be accomplished in any desired sequence; i.e., up only, down only or up and down.

OPERATING PRINCIPLE

CAUTION: DO NOT REMOVE MANDREL CLAMP UNTIL THE TOOL IS IN TENSION!

PICKING UP - Always use a lift nipple to pick up the tool and a thread protector on the pin thread.

MAKING-UP - Although the tool will function the same whichever end is run down, it is recommended that it be runin the normal manner, i.e., box up - pin down.

REMOVING THE MANDREL CLAMP - When the tool has been made-up in the drill string, pick up the weightfrom the slips to place the tool in tension. With the tool in tension, remove the mandrel clamp. Keep the clamp onlocation to be used when the tool is racked back.

RUNNING IN - Use care to start and stop slowly when running in, to avoid a “yo-yo” effect, which could cause thetool to inadvertently cock. Be aware that running anything that restricts the I.D. of the drill collars below the jar (floatvalves, survey tools, etc.) can cause the collars to “float” when the pipe is lowered rapidly and can result in the toolinadvertently cocking.



Drilling with Jar in Compression - The jar will normally be in tension when the bit reaches bottom and should betripped down with a light load to avoid damage to the bit. The recommended procedure is to begin rotating. Slack offenough weight so that the jar is only slightly in compression (5,000 lbs. to 10,000 lbs.) and wait for the jar to trip downbefore slacking off to the final drilling weight. Since the jar will return to neutral whenever the string is picked up, thisprocedure should be followed each time a connection is made.

Pump Open Force - Pressure differential between the drill pipe I.D. and the annulus at the jar, will tend to pumpopen the tool. In normal drilling, this will have no effect on either the weight on the bit or the jar itself. 6A) If the jaris in tension while drilling, the pump open force will only tend to keep the jar extended. 6B) If the jar is in compression,the pump open force will tend to reduce the weight on the jar but will have no effect on the jar travel until all the weighthas been lifted from the jar.

Weight Indicator Reading - What is usually called “Pump Open Force” is really the effect seen at the surface onthe weight indicator. It is important to understand that this force occurs at the surface. It is the product of the drill pipeto annulus seal area of the jar and the pressure differential across the jar. Pump Open Force Charts are provided inthe “Technical Information” section, of this catalog. To calculate , use the chart below, multiply the “pumpopen area” by the pressure drop across the drill bit to determine the change in weight indicator reading. ThePump Open Force increases the up jar overpull and decreases the down jar overpull.

Jarring - The tool is controlled completely with axial motion. From the neutral position, pull up to the desired load andwait for the jar to trip up; or slack off the desired load and wait for the jar to trip down. After impact, return the jar toneutral with motion in the opposite direction until resistance is met. The tool is immediately ready to jar in the same oropposite direction.

Time Delay - The time delay is designed to vary from 20 to 60 seconds in the load range of normal jarring. However,at low loads, additional time is available to insure location the neutral position without inadvertently tripping through. If,when returning to neutral, the tool should be inadvertently tripped through, it is only necessary to reverse the axialmotion to jar in the desired direction.

Pulling Pipe - Exercise caution when pulling the pipe to eliminate any danger associated with the jar trippingunexpectedly. This can occur if the tool is unexpectedly in compression when the bit is lifted off bottom. To guardagainst unexpected tripping, allow the pipe to hang off bottom long enough for the jar to trip through, due to the actionof the load hanging below it, before suspending the pipe from the slips.

Racking Back - When the jar comes through the rotary, INSTALL THE MANDREL CLAMP WHILE THETOOL IS STILL IN TENSION. As a safety precaution, do not stand the jar in the rack with drill collars above it. Ifracked back as part of a stand, the jar should be the top joint. This will reduce the load on the mandrel clamp to aminimum.



DAILEY®

HYPULSE JAR SLINGER®

DRILLING

Hammer

Spline Housing

Connector Housing

Wash MandrelBalance Piston

Spline Mandrel

Balance Housing

ss

ss

s

Pressure Housing

ss Flow Mandrel

Upper Pressure Pistons

Lower Pressure Pistonss

s

© 1999. Weatherford. All rights reserved. 22 WFT-HYP-D_99 (10/99)

DAILEY® HYPULSE JAR SLINGER®

DRILLING

PROPER OPERATIONS

The Dailey HyPulse Jar Slinger® is an energy accumulator used in conjunction with Dailey Drilling Jars tomaximize the impact delivered to the stuck point.

JAR SLINGER PLACEMENT IN THE STRINGThe HyPulse Jar Slinger® should be run with several joints of heavy weight pipe or drill collars between it and the Jarbelow. If down jarring is anticipated, several joints of heavy weight pipe or drill collars should also be run above theHyPulse Jar Slinger®. It is the weight above the HyPulse Jar Slinger® which compresses it when down-jarring andthis compression of the fluid within the tool and the weight below it that accelerates the Jar downward after it triggers.It is the strain placed on the drill pipe by the drawworks as the pipe is pulled to actuate the Jar that compresses the HyPulseJar Slinger® when jarring upward. After the Jar triggers, the fluid compressed within the HyPulse Jar Slinger® andthe stretch of the pipe above it cause the Jar and the pipe above the it to accelerate upward to impact.

The HyPulse Jar Slinger® is not affected by drilling torque and requires no pipe manipulation other than axial motionto operate.If the HyPulse Jar Slinger® is left in tension or compression for an extended period of time, as in normal drillingoperations or when the tool is "racked back" it will slowly open or close depending upon which direction it is loaded.Therefore, when beginning the jarring operation, slack off enough weight to insure that the HyPulse Jar Slinger® is incompression before pulling a strain on the drill pipe. Also, when conducting extended jarring operations slack off on theHyPulse Jar Slinger® in the direction opposite to the jarring direction every twentieth (20) actuation or so to refill thepressure chamber and insure maximum jarring effectiveness.

RECOMMENDED PROCEDURE TO CHECK THE HyPulse JAR SLINGER®

Each trip out of the hole, wash the mud from the polished mandrel and from inside the bottom connection. Check thepolished mandrel carefully for any sign of corrosion, pitting, or flaking of the plating.



HYPULSE JAR SLINGER® - DRILLING SPECIFICATIONS

O u ts ide D iameter (in.) 4 3 /4 6 1 /4 6 1 /2 7 7 3 /4 8 9 1 /2

In s id e D ia m e ter (in.) 2 1 /4 2 1 /4 2 3 /4 2 3 /4 3 3 3

T o o l J o in t S iz e (A P I)N C -38

3 1 /2 IFN C -46

4 1 /2 X HN C -50

4 1 /2 IF 5 1 /2 F H 6 5 /8 R e g 6 5 /8 R e g . 7 5 /8 R e g

T e n s ile Yield* ( x 1 0 0 0 lb s .) 5 0 0 8 3 2 9 3 4 1 ,200 1 ,600 1 ,750 2 ,300

Tors io n a l Yie ld * ( x 1 0 0 0 ft. lb s .) 20 4 9 .3 5 6 .2 7 6 .4 7 6 .4 1 0 5 1 6 0

M a x . Overpu ll U p /D o w n ( x 1 0 0 0 lbs .) 85 2 0 0 1 7 5 2 2 0 2 6 0 3 0 0 5 0 0

A p p rox . L e n g t h E x t e n d e d (ft. - in.) 3 2 ' - 0 " 3 3 ' - 0 " 3 3 ' - 0 " 3 3 ' - 0 " 3 3 ' - 0 " 3 3 ' - 0 " 3 5 ' - 6 "

A p p rox . W e ig h t (lbs .) 1 ,200 2 ,050 2 ,400 3 0 0 0 3 ,500 3 ,800 5 ,500

F ree Trave l U p /D o w n S tro k e (in.) 7 1 /2 8 1 /4 8 1 /2 8 1 /2 9 3 /4 9 3 /4 9 3 /4

M a x . B H T (°F ) 4 0 0 4 0 0 4 0 0 4 0 0 4 0 0 4 0 0 4 0 0

P u m p O p e n A rea (sq. in.) 1 0 .3 1 5 .9 1 9 .6 2 3 .8 2 8 .3 2 8 .3 3 8 .5


DAILEY®

DUAL-ACTINGCOILED TUBING JAR

Spline Housing

Connector Housing

Upper Pressure PistonPressure Housing

Lower Pressure Piston

Wash Mandrel

Balance Piston

Spline Mandrel

s

Flow Mandrel

Upper Valve

Lower Valve

Balance Housing

Upper Connector ss

ss

s

ss

ss

ss

s

Bottom Connection s

© 1999. Weatherford. All rights reserved. 24 WFT-DAJ_99 (10/99)

DAILEY®

DUAL-ACTING COILED TUBING JAR

The Dailey® Dual-Acting Hydraulic Coiled Tubing and Slimhole Jar was designed to meet the needs of the CoiledTubing Industry. With the field proven hydraulic time delay/mechanical tripping system of the Dailey® HydraulicDrilling Jar, the Dual-Acting Jar with its small outside diameter provides Coiled Tubing Drillers with the quality andperformance of the conventional hydraulic drilling jar. As an integral part of the Coiled Tubing drill string the Dual-Acting Jar can provide impacts up or down to help overcome the lack of coiled tubing tensile strength. The Dual-Acting Jar has been designed to meet the requirements of the Coiled Tubing Driller, short ample delay before impact,adequate impact (up/down) and durable for continued operations. Like its predecessors, the Dailey® Dual-ActingHydraulic Jar is ready when you are.

DUAL-ACTING JAR SPECIFICATIONS

Outside Diameter (in.) 1 13/16 2 1/4 2 7/8 3 1/8

Inside Diameter (in.) 3/8 5/8 3/4 1

Tool Joint Size (API)1 13/16

WFJ 1 1/4 Reg. 2 3/8 PAC 2 3/8 Reg.

Tensile Yield * ( x 1000 lbs.) 70 110 200 240

Torsional Yield* (ft. lbs.) 850 1,800 4,000 5,000

Max. Overpull Up/Down (lbs.) 12,000 25,000 50,000 50,000

Approx. Length Extended (ft. - in.) 8' - 0" 8' - 0" 8' - 0" 8' - 0"

Approx. Weight (lbs.) 60 80 100 110

Free Travel Up/Down Stroke (in.) 3.5 3.5 3.5 3.5

Total Stroke (in.) 9.5 9.5 9.5 9.5

Max. BHT ( °F ) 400 400 400 400

Pump Open Area (sq. in.) 0.79 1.35 2.24 2.95



OPENING THE DAJ ABOVE THE ROTARYIf the DAJ should become cocked (5inches of polished mandrel exposed) on the surface, it can be easily triggeredopen with a light overpull. Support the weight below the DAJ in the slips and pick up 1,000 lbs. to 2,000 lbs. with theelevators. At this extremely low load it will require about 5 minutes for the HDJ to trigger. (With the DAJ fullyextended there will be about 10+ inches of polished mandrel exposed.)

JAR PLACEMENT IN THE STRINGThe DAJ can be run in tension or compression. It is mandatory that a minimum 15% safety factor in string weight berun between the DAJ and the weight transition zone. Never run the DAJ as a crossover between the drill collars andthe heavy wall pipe, or between collars of different O.D.'s, because these transition points are where excessive stressoccurs. Run the same size collar or heavy wall drill pipe directly above and directly below the jar. Avoid running theDAJ below reamers, stabilizers, key-seat wipers, or any other tool with a larger O.D. than the DAJ, since this mightrestrict the jarring function.

CAUTION: NEVER RUN THE DAILEY® DUAL-ACTING JAR IN CLOSE PROXIMITY TOANOTHER DAILEY® DUAL-ACTING JAR, OR ANY OTHER TYPE OF JAR.

DRILLING WITH THE DAILEY® DUAL-ACTING JAR IN COMPRESSIONThe DAJ will normally be in tension when the bit reaches bottom and should be triggered down with a light load in orderto avoid any chance of damage to the bit. The recommended procedure is to begin rotating, slack off enough weight sothat the jar is only slightly in compression (2,000 lbs. to 5,000 lbs.), and after the jar falls through, slack off to the finaldrilling weight. Since the jar will cock whenever the string is picked up off bottom, this procedure should befollowed each time a connection is made.

RUNNING INThe DAJ should always be kept in tension while running in to guard against inadvertent triggering. The DAJ will cockwith only slight resistance if it is put in compression. Use care to start and stop slowly when running in to avoid a "yo-yo" effect which could cause the DAJ to cock. Run through tight spots and dog legs slowly. Be aware that anythingthat restricts the I.D. of the pipe or collars below the DAJ (float valves, survey tools, etc.) could cause the collars to"float" if the pipe is lowered too rapidly and could result in cocking the DAJ. If it is suspected that the DAJ hasinadvertently cocked, suspend the drill pipe in the elevator long enough for the DAJ to trip open (due to the weight ofthe collars suspended below it) before running in the hole.

DAILEY®


JARRINGNo presetting or adjustment is required before running or prior to jarring. The DAJ is totally controlled from the surfaceusing only axial motion. From the neutral position, pull up to the desired load and wait a few seconds for the DAJ to jarup, or slack off to the desired load and wait a few seconds for the DAJ to jar down. After impact, return the DAJ toneutral and it is immediately ready to jar in the same or in the opposite direction. To hit harder pull harder, to hit lighterpull lighter. There is no other operator action required and the DAJ can be hit in any sequence desired (up only, downonly, or up and down).

PROPER OPERATIONS

The waiting time between setting the brake and the jarring action will be in the range of 10-60 seconds and will not beaffected by changes in down-hole temperature or hydrostatic pressure or the number of times the DAJ is actuated. Itis never necessary to "warm-up" the DAJ or to circulate to "cool it off". DRILLING TORQUE DOES NOT EFFECTTHE DAJ. Full torque in either direction can be transmitted at all times without affecting either the magnitude or thetime delay of the jarring action.


FINDING THE NEUTRAL (OR COCKED) POSITIONIt is not necessary to slack off (or pull up if jarring down) an exact amount of weight or to control the travel of the jarto recock. The proper travel will occur automatically if sufficient weight is slacked off (or pulled up) to allow the necessarytravel at the tool. NOTE: When recocking to jar again in the same direction the time delay of the next blow WILL NOTbe affected by overtravel in the direction of neutral.

RECOMMENDED PROCEDURE TO CHECK THE DAJEach trip out of the hole, wash the mud from the polished mandrel and from inside the bottom connection. Check thepolished mandrel carefully for any sign of corrosion, pitting, or flaking of the plating. REPLACE THE MANDRELCLAMP while the jar is still in tension.

Contact your Weatherford representative if you have any questions or if assistance is required concern-ing the proper operation of the Dailey® Dual-Acting Jar.

DAILEY®



DAILEY®


COILED TUBING

Hammer

Spline Housing

Connector Housing

Wash MandrelBalance Piston

Spline Mandrel

Balance Housing

ss

ss

s

Pressure Housing

ss Flow Mandrel

Upper Pressure Pistons

Lower Pressure Pistonss

s

© 1999. Weatherford. All rights reserved. 28 WFT-HYP-CT_99 (10/99)


COILED TUBING

PROPER OPERATIONS

The HYPULSE JAR SLINGER® is an energy accumulator used in conjunction with Dailey Dual-Acting Jars tomaximize the impact delivered to the stuck point.

SLINGER PLACEMENT IN THE STRING

The slinger should be run with several joints of heavy weight pipe or weight bars between it and the Jar below. If downjarring is anticipated, several joints of heavy weight pipe or weight bars should also be run above the slinger. It is theweight above the slinger which compresses it when down-jarring and this compression of the fluid within the tool andthe weight below it that accelerates the Jar downward after it triggers. It is the strain placed on the drill pipe by thedrawworks as the pipe is pulled to actuate the Jar that compresses the slinger when jarring upward. After the Jartriggers, the fluid compressed within the slinger and the stretch of the pipe above it cause the Jar and the pipe abovethe it to accelerate upward to impact.

The slinger is not affected by drilling torque and requires no pipe manipulation other than axial motion to operate. If theslinger is left in tension or compression for an extended period of time, as in normal drilling operations or when the toolis "racked back" it will slowly open or close depending upon which direction it is loaded. Therefore, when beginning thejarring operation, slack off enough weight to insure that the slinger is in compression before pulling a strain on the drillpipe. Also, when conducting extended jarring operations slack off on the slinger in the direction opposite to the jarringdirection every twentieth (20) actuation or so to refill the pressure chamber and insure maximum jarring effectiveness.

RECOMMENDED PROCEDURE TO CHECK THE HYPULSE JAR SLINGER®

Each trip out of the hole, wash the mud from the polished mandrel and from inside the bottom connection. Check thepolished mandrel carefully for any sign of corrosion, pitting, or flaking of the plating.

* Tensile & torsional yield values calculated per A.P.I. RP7G based on nominal dimensions& published yield strength of material and do not constitute a guarantee, actual or implied.


HYPULSE JAR SLINGER® - COILED TUBING SPECIFICATIONS

Outside Diameter (in.) 3 1/8 2 7/8

Inside Diameter (in.) 1 3/4

Tool Joint Size (API) 2 3/8 Reg. 2 3/8 Reg.

Tensile Yield * (lbs.) 240,000 200,000

Torsional Yield * (ft. lbs.) 5,000 4,000

Max. Overpull Up/Down (lbs) 50,000 50,000

Approx. Length Extended (ft.) 12 10' - 10"

Approx. Weight (lbs.) 165 131

Total Stroke (in.) 9.5 9.5

Max. Circulating PSI 5,000 5,000

Max. Hydrostatic PSI None None

Max. BHT (deg. Fº) 400 400

Pump Open Area (sq. in.) 2.95 2.24


DAILEY®

HYDRAULICFISHING JAR

Spline Mandrel

Spline Housing

Connector Housing

Hammer

Pressure Housing

Wash Mandrel

Balance Piston

Bottom Connector

ss

ss

ss

ss

Pressure Pistons

Valves

© 1999. Weatherford. All rights reserved. 30 WFT-HFJ_99 (10/99)

Fishing environments and high temperatures are no threat to the reliable operation of this combination Hydraulic timedelay/Mechanical triggering fishing jar. Utilizing a patented hydraulic time delay/mechanical triggering system, theDailey® Hydraulic Fishing Jar combines reliability and long operating life under a wide range of fishing conditionsand environments. The Hydraulic Fishing Jar design features a one peice involute spline for a maximum torquecapacity with minimum backlash, and a fluid-isloated high pressure chamber that lubricates and isolates the Jar’smoving seals, impact shoulders and mandrel from destructive effects of downhole formation cuttings, sand and otherdebris.The Hydraulic Fishing Jar design, being only slightly affected by downhole temperatures and generating little heatitself when jarring, delivers virtually the same time delay in deep, hot holes as it does on the surface. The design alsoeliminates the need for bleed-off compensation. The trip load will be the same as the brake load.

Dailey® Hydraulic Fishing Jars are delivered to site ready to go. Your jarring load is controlled and varied at thesurface by controlling the overpull. To hit harder, pull harder. To hit lighter, pull lighter.

Outside Dia. (in.) 1 13/16 2 1/4 3 1/8 3 1/8 3 3/4 3 3/4 4 1/4 4 3/4 6 1/4 6 1/2 7 3/4

Inside Dia. (in.) 1/2 11/16 1 1/4 1 1/2 1 3/4 1 15/16 2 1/8 2 1/4 2 1/4 2 3/4 3

Tool Joint (API)1 13/16

WFJ1 1/4Reg

2 3/8Reg

2 7/8PAC 2 3/8 IF 2 3/8

EUE 2 7/8 IF 3 1/2 IF 4 1/2 IF 4 1/2 IF 6 5/8Reg

Tensile Yield*(x 1000 lbs.)

75 110 250 200 275 225 325 500 1,000 1,000 1,600

Torsional Yield*(x 1000 ft. lbs.)

1.6 2.5 5.0 5.0 7.8 3.75 15 20 49.3 56.2 100

Max. Overpul l(x 1000 lbs.)

20 30 45 35 45 45 55 85 200 175 260

LengthClosed (ft.-in.)

7'-0" 7'-10" 9'-0" 8'-8" 9'-0" 9'-0" 9'-0" 9'-11" 12'-2" 12'-9" 13'-10"

Weight (lbs.) 50 80 180 180 222 230 290 400 800 1000 2,000

Free Travel (in.) 4 4 4 1/4 4 4 1/4 4 1/4 4 1/2 5 5 6.5 7 1/2

Total Stroke (in.) 5 1/2 6 6 1/8 6 6 1/8 6 1/8 6 1/4 7 8 1/4 8 1/2 9 3/4

Max. BHT ( °F ) 400 400 400 400 400 400 400 400 400 400 400

Pump Open Area(sq. in.)

1.1 1.8 4.0 4.0 5.9 5.9 7.7 10.3 15.9 19.6 28.3



PROPER OPERATIONSDELIVERY TO LOCATIONThe Dailey Hydraulic Fishing Jar is delivered to location with the mandrel in the closed position. The fully closedposition will leave an approximate 1" gap between the bottom of the box end of the mandrel and the top of the upperhousing. This design feature prevents debris, in the well bore fluid, from being driven into the upper seals when the Jaris recocked. If there is a gap of more than one inch (1") or the mandrel is in the open position (about 5 1/2" to 8 1/4"inches of mandrel exposed, depending on Jar size) contact your Dailey Representative.

Always check for any visible indications that the Jar has been leaking.

All service breaks on the Dailey Hydraulic Fishing Jar are torqued at the Service Center and do not require furthertightening before running it in the hole. Also do not break any connections when laying the Jar down.

HYDRAULIC FISHING JAR SPECIFICATIONS

DAILEY®

HYDRAULIC FISHING JAR


APPLICATIONS - FISHINGThe Dailey Hydraulic Fishing Jar is used in all fishing, coring, washover etc., applications where the Operator needs todeliver an upward impact to a stuck point, tight spot, or to break off a core before retrieving it from the well bore.

The unique design of the Dailey Hydraulic Fishing Jar allows it to be used in deep, deviated, high temperature holeswithout compromising performance. The design eliminates internal generation of heat created during jarring periods.This means uninterrupted jarring without waiting for the Jar to cool down or for the viscosity of the oil to return tonormal. No heat buildup results in longer packing and seal life, extending the time the Jar can remain downhole.

The Jar has virtually no “bleed off,” therefore, it does not have to be overpulled to compensate for bleed off. Simplypick up the drill string to the desired load, within specifications for the Jar size, and set the brake. The Jar will trip at thedesired load.

Jar “warm up” is not required for it to operate properly. The overall tripping times, at load, remain consistent withina few seconds, from first actuation until the last actuation.

Large free-flow paths allow the Jar to be recocked as fast as the string can be lowered without damaging the internalseals or bursting any of the body housings. Recocking takes no pre-load, only enough weight to overcome internal sealfriction is required to recock the Jar.

The Jar requires only axial manipulation of the String. The rugged involute spline system prevents downhole torquefrom interfering with the tripping times of the Jar.

The overpull to the Jar is infinitely variable from zero to the overpull limits established for the particular size. Thisallows the Operator complete control of the impact to the fish, simply by adjusting the pull on the string. Overall trippingtimes are a function of overpull. The greater the overpull, the quicker the jar will trip.

APPLICATIONS - DRILLINGThe Dailey Hydraulic Fishing Jar’s design allows the tool to be used as a Slim Hole Drilling Jar. When using the Jarfor slim hole drilling, Dailey recommends that only the 4 1/4" & 3 3/4" O.D. Jars be rotated by the drill string,through the use of the rig rotary table, top drive system or a power swivel. It is also recommended that the 3 1/8", 21/4" & 1 13/16" O.D. Jars be run in a drill string that has a downhole drilling motor, positioned below the DaileyHydraulic Fishing Jar to provide rotation to the bit. All the benefits listed above, for the Dailey Hydraulic Fishing Jarduring fishing applications, are valid when the Jar is used in the drilling mode. The Dailey Hydraulic Fishing Jar is anUp Only Jar. For use in the drilling mode, where a downward impact may be required, Dailey recommends that aDailey Lubricated Bumper Sub be run with the Hydraulic Fishing Jar.

POSITIONING IN THE STRING - FISHINGWhen using the Jar in a fishing string, Dailey recommends that the Jar be run with a Dailey Hydraulic LubricatedBumper Sub and HyPulse Jar Slinger®. The Jar is run in the lower portion of the BHA, just above the fishing tools andthe Dailey Lubricated Bumper Sub. Dailey recommends three (3) to five (5) drill collars or joints of heavy weight drillpipe placed immediately above the Jar, for use as a “Hammer.” This is only a suggestion and the on-site operator maywant to place more or less “Hammer” above the Jar depending on the needs of the operation. If a Dailey HyPulse JarSlinger® is run in the fishing string, it needs to be positioned at the top of the drill collars or HWDP being used as aHammer.

DAILEY®


PICKING UP AND LAYING DOWNThe Dailey Hydraulic Fishing Jar is handled in the same manner as any other Fishing Jar. Tie pick up line around themiddle of the Jar and make sure that it is balanced when being hoisted to the rig floor. Do not use the gap at the topof the Jar as a tie on point when picking the tool up or when laying it down. If necessary, use a tailing rope to controlthe motion when the Jar is being picked up or laid down. Use thread protectors while handling the Jar; do not allow thepin or box connections to be abused during handling. Damage to the connection may lead to a) improper makeup torqueon the connection, b) galling of the threads, or c) connection washout.


INSTALLATION IN THE STRING - FISHINGThe Dailey Hydraulic Fishing Jar is installed in the string in the same manner as any other BHA component.The Jar is installed with pin connection down and box connection up. All service breaks are torqued tomanufacturer’s recommended value, therefore, the only connections that need to be tightened are the box& pin connections that connect the Jar to the other components of the BHA or fishing assembly. Alwaysunlock the rotary and use two pairs of tongs when making the Jar up in the string or breaking the Jar out ofthe string. Never use the rotary to break the torque on the connection or to back into the Jar when makingit up in the String. A Drill Collar Safety Clamp must be installed on the Jar above the slips if the Jar is leftunsupported in the rotary table. This is to prevent the Jar from sliding through the slips. When making up orbreaking out, position the Jar as low in the slips as possible, leaving enough room to install the Drill CollarSafety Clamp and get the tongs on the Jar. This will help to prevent bending or breaking of the Jar due tolateral forces exerted on the it by use of conventional make up or break out tongs. If power tongs are beingused this should not be a problem. Dailey recommends that the Jar be run in the hole in the “StretchedOpen” position.

Dailey does not recommend racking back the Hydraulic Fishing Jar in the derrick. Whether in afishing or drilling application, Dailey recommends when the string is out of the hole, the Jar be removedfrom the string and laid down.

DOWN HOLE OPERATION - FISHINGThe downhole actuation of the Jar requires only the raising and lowering of the fishing string. To deliver anupward blow, slack off on the string until the end of the free travel is observed on the Weight Indicator.Raise the drill string until the indicated weight equals the calculated weight of the fishing string. To jar up,continue to pull on the fishing string until the desired jarring load is shown on the Weight Indicator. Set thebrake and wait for the Jar to trip. It is important to stay within the overpull limits set forth in the specificationsfor the particular Jar size. Exceeding the overpull limits of the Jar may damage it and render it inoperable.After the Jar has tripped, the Operator can pull the string to the tensile limits of the Jar without damaging thetool. Lower the Jar to recock and repeat the jarring process as needed. The String may be lowered as fastas the Operator desires, with no adverse effects to the Dailey Hydraulic Fishing Jar.

MAINTENANCE IN THE STRINGThe Dailey Hydraulic Fishing Jar is a rugged, dependable downhole impact tool that requires very littlemaintenance while on the job. To insure maximum performance, Dailey recommends on each trip out ofthe hole, the rig crew wash off the mandrel of the Jar and the top of the upper housing where the mandrelgoes through the upper seals. Unscrew the Jar from the BHA at the pin end and wash with water both theI.D. of the pin and around the compensating piston.

Slin

ger

Fish

ing

Jar

Bum

per S

ubFi

shin

g T

ools

DAILEY®


Dailey does not recommend using the Jar as a crossover between the drill collars and drill pipe.

Dailey does not recommend placing the Jar adjacent to any stabilization in the BHA.

POSITIONING IN THE STRING - DRILLINGWhen using the Jar as a slim hole drilling jar, remember that the Fishing Jar is an up only Jar and if adownward impact is needed it must be run with a Dailey Lubricated Bumper Sub. Typically Dailey hasrecommended that the Bumper Sub be positioned immediately below the Fishing Jar. However, this componentarrangement allows the Operator to place several drill collars or HWDP between the Hydraulic Fishing Jarand the Lubricated Bumper Sub, if the situation warrants. When using the Jar as a slim hole drilling jar,Dailey recommends placing it at the top of the BHA, and running it in tension. The BHA should be designedto ensure that the placement of the Jar follows the same guidelines as those used when running a DaileyHydraulic Drilling Jar. Place enough weight below Jar, equal to 120% of Weight on Bit. The Jar shouldnever be placed in the Transition Zone. Place three (3) to five (5) drill collars above the Jar for an effectiveHammer.


Ham

mer

Sec

tion

DAILEY®


FISHING

Hammer

Spline Housing

Connector Housing

Wash Mandrel

Balance Piston

Bottom Connection

Pressure Housing

Flow Mandrel

Spline Mandrel

ss

ss

ss

Fluid Housing

s

s

Pressure Pistonss

s

© 1999. Weatherford. All rights reserved. 34 WFT-HYP-F_99 (10/99)


FISHING

PROPER OPERATIONS

Tool specification sheets are available from a Dailey Representative. These specifications are provided to theoperators of each job. Dailey recommends that the operator NOT EXCEED these specifications when using theDailey HyPulse Jar Slinger®. Should additional information be required or questions arise, contact your local DaileyRepresentative for assistance.

DELIVERY TO LOCATIONThe Dailey HyPulse Jar Slinger® is delivered to location with the mandrel in the closed position. The fully closed positionwill leave an approximate 1" gap between the bottom of the box end of the mandrel and the top of the upper housing.This design feature prevents debris, in the well bore fluid, from being driven into the upper seals when the Slinger iscompletely closed. If there is a gap of more than one inch and a quarter (1 1/4") when delivered to the location contactyour nearest Dailey representative.Always check for any visible indications that the Slinger has been leaking. All servicebreaks on the Dailey HyPulse Jar Slinger® are torqued to specifications at the Service Center and do not require furthertightening before running it in the hole. Also do not break any connections when laying the Slinger down.

PICKING UP AND LAYING DOWNThe Dailey HyPulse Jar Slinger® is picked up and laid down in the same manner as any other Accelerator or Intensifier.Tie the pick up line around the middle of the Slinger and make sure that it is balanced when being hoisted to the rig floor.Do not use the gap at the top of the Slinger as a tie on point when picking the tool up or laying it down. If necessary,use a tailing rope to control the motion when the Slinger is being picked or laid down. Use the thread protectors whilehandling the Slinger; do not allow the pin or box connections to be abused during handling. Damage to the connectioncould lead to: a) improper makeup torque on the connection, b) galling of the threads, or c) connection washout.

APPLICATIONSThe Dailey HyPulse Jar Slinger® is specifically designed to be run with the Dailey Hydraulic Fishing Jar. The Slingeruses a “compressible synthetic oil” as a fluid spring to store energy that is released when the tripping mechanism in theDailey Hydraulic Fishing Jar opens. This action allows the internal mandrel/hammer assembly of the Jar to travelunimpeded until it strikes the anvil, resulting in an sharp upward impact to the stuck point.



HYPULSE JAR SLINGER® - FISHING SPECIFICATIONSOutside Diameter (in.) 1 13/16 2 1/4 3 1/8 3 1/8 3 3/4 3 3/4 4 1/4 4 3/4 6 1/4 6 1/2 7 3/4

Inside Diameter (in.) 1/2 11/16 1 1/4 1 1/2 1 3/4 1 15/16 2 1/8 2 1/4 2 1/4 2 3/4 3

Tool Joint (API)1 13/16WFJ 1 1/4 Reg 2 3/8 Reg 2 7/8 PAC 2 3/8 IF 2 3/8 EUE 2 7/8 IF 3 1/2 IF 4 1/2 IF 4 1/2 IF 6 5/8 Reg

Tensile Yield*( x 1000 lbs.)

75 110 250 200 275 225 325 500 832 1,000 1,600

Torsional Yield *(x 1000 ft. lbs.)

1.6 2.5 5.0 5.0 7.8 3.75 15 20 49.3 56.2 100

Max. Overpull(x 1000 lbs.)

20 30 45 35 45 45 55 85 200 175 260

LengthClosed (ft. - in.)

7' - 0" 8' - 9" 9' - 10" 9' - 8" 9' - 10" 9' - 10" 9' - 10" 9' - 10" 13' - 6" 15' - 0" 15' - 7"

Weight (lbs.) 50 100 198 175 242 224 316 440 1,000 1,200 2,000

Total Travel (in.) 5 1/2 6 6 1/8 6 6 1/8 6 1/8 6 1/4 7 8 1/4 8 1/2 9 3/4

Max. BHT ( °F ) 400 400 400 400 400 400 400 400 400 400 400


0.4 0.8 2.4 2.8 4.4 4.4 5.4 6.5 7.7 11.0 14.2



FISHING

APPLICATIONS (cont.)The design of the Dailey HyPulse Jar Slinger® allows it to be used in deep, deviated, high temperature holes ensuringoptimum performance of the Dailey Hydraulic Fishing Jar.The Dailey HyPulse Jar Slinger® is the answer for thosesituations when additional stored energy is required above that supplied by the stretch of the fishing string when it is stuck.(ie. shallow depths where larger drill collars or drill pipe are being used)

In deviated and horizontal type holes it may become necessary to employ a Slinger to counteract the drag induced by wallcontact on the heavyweight pipe or drill collars used above the Hydraulic Fishing Jar.

The Dailey HyPulse Jar Slinger® permits the operator to utilize fewer drill collars in his fishing string than he wouldnormally use.The use of a Dailey HyPulse Jar Slinger® provides the added benefit of reducing the shock impact on thefishing string above its point of installation; therefore reducing the shock impact on the surface equipment. This featureis highly beneficial on rigs equipped with Top Drives.

POSITIONING IN THE STRINGThe Dailey HyPulse Jar Slinger® should be positioned above the drill collars or heavy weight drill pipe that serve as thehammer for the Hydraulic Fishing Jar.

INSTALLATION IN THE STRINGThe Dailey HyPulse Jar Slinger® is installed in the same manner as any other BHA component. The Slinger is installedwith pin connection down and box connection up. All Service Breaks are torqued to manufacturer’s recommendedvalue, therefore, the only connections that need to be tightened are the box & pin connections that connect it to the othercomponents of the BHA or fishing assembly. Always unlock the rotary and use two pair of tongs when making the Slingerup in the string or breaking it out of the string. Never use the rotary to break the torque on the connection or to backinto the Slinger when making it up in the string. A Drill Collar Safety Clamp must be installed on the Slinger above theslips if it is left unsupported in the rotary table. This is to prevent the Slinger from sliding through the slips. When makingup or breaking out, position the Slinger as low in the slips as possible leaving enough room to install the Drill Collar SafetyClamp and get the tongs on the Slinger. This will help to prevent bending or breaking of the Slinger due to lateral forcesexerted on the it by use of conventional make up or break out tongs. If power tongs are being used this should not bea problem.

STAND BACK PROCEDURESDailey does not recommend that the Dailey HyPulse Jar Slinger® be racked back in the derrick while the string is outof the hole. In fishing or drilling applications, Dailey recommends that when the string is out of the hole and the Slingerwill not remain suspended in the elevators that it be removed from the string and laid down.DOWN HOLE OPERATIONThe downhole activation of the Dailey HyPulse Jar Slinger® requires only the raising of the string. After the slack hasbeen taken out of the string and it has been stretched to published specifications, the Slinger will start to compress thefluid inside the tool and store energy in the tool itself. This energy along with the energy stored in the stretched stringwill automatically be released when the Jar trips and allows free travel of the mandrel. The string can be raised or loweredas fast as the operator desires with no adverse effect on the Dailey HyPulse Jar Slinger®.

NOTICE:AFTER OPERATING FOR A WHILE, THE TOOL MAY APPEAR TO BOTTOM OUT, THIS IS A NATURAL OCCURRENCE BECAUSE OF THE

UNIQUE DESIGN OF THE TOOL. THE PROCEDURE FOR RESETTING THE SLINGER IS SIMPLE. WHEN THE OPERATOR SLACKS DOWN

TO CLOSE THE JAR & BUMPER SUB, HE SHOULD SLACK DOWN A LITTLE FURTHER TO MAKE SURE THAT THE SLINGER IS

COMPLETELY CLOSED. THIS WILL RESET THE PISTON IN THE SLINGER TO BOTTOM AND RETURN THE TOOL TO NORMAL

OPERATION.


ROUTINE MAINTENANCE IN THE STRINGThe Dailey HyPulse Jar Slinger® is a rugged, dependable downhole tool that requires very little maintenance on the job.To ensure maximum performance Dailey recommends that on every trip out of the hole, the rig crew use the water hoseto wash off the mandrel of the Slinger and the top of the upper housing where the mandrel goes through the upper seals.Unscrew the Slinger from the string at the pin end and wash with water both the I.D. of the pin and around thecompensating piston.



FISHING

DAILEY®

LUBRICATEDBUMPER SUB

Hammer

Spline Housing

Connector Housing

Balance Piston

Bottom Connector

s

Spline Mandrel

ss

ss

ss

Balance Housing

s

Wash Mandrel

© 1999. Weatherford. All rights reserved. 38 WFT-LBS_99 (10/99)

The Dailey® Lubricated Bumper Sub provides better control in directional holes, improved bit life and greatly reducedbottom hole assembly vibration. By providing a more subdued up or down bump to the fishing string, the Bumper Subalso aids in disengaging a fish after retrieval. It also serves as a “free point indicator” that can help the operator latchonto the fishing tool.

Utilizing the field-proven reliability of the Dailey® single piece mandrel and the torque and debris isolation system usedin our full scale jars, the Lubricated Bumper Sub has proven itself a world-class performer in most fishing situations.

The Lubricated Bumper Sub can be used in high angle, shallow or deep wells, including high temperature/high pressureformations. It can be used in cased or open holes to recover bottom hole assemblies, tubing and packers as well as inslimhole and coiled tubing drilling. The Bumper Sub is also easily transportable.


LUBRICATED BUMPER SUB SPECIFICATIONS

Outside Diameter (in.) 2 1/4 3 1/8 3 1/8 3 3/4 3 3/4 4 1/4 4 3/4 6 1/4 6 1/2 7 3/4

Inside Diameter (in.) 11/16 1 1/4 1 1/2 1 3/4 1 15/16 2 1/8 2 1/4 2 1/4 2 3/4 3

Tool Joint Size (API)1 1/4Reg

2 3/8Reg

2 7/8PAC 2 3/8 IF 2 3/8

EUE 2 7/8 IF 3 1/2 IF 4 1/2 IF 4 1/2 IF 6 5/8Reg

Tensile Yield*( x 1000 lbs.)

110 250 200 275 225 325 500 832 934 1,600

Torsional Yield*( x 1000 ft. lbs.)

2.5 5.0 5.0 7.8 3.75 15 20 49.3 56.2 100

LengthClosed (ft. - in.)

8' - 4" 9' - 2" 9' - 4" 9' - 4" 9' - 4" 9' - 0" 11' - 0" 12' - 0" 13' - 4" 14' - 11"

Weight (lbs.) 85 184 175 230 230 290 440 1,000 1,200 1,600

Total Travel (in.) 12 16 16 16 1/8 16 1/8 16 15 16 1/2 17 19 1/2

Max. BHT ( °F) 400 400 400 400 400 400 400 400 400 400


1.8 4.0 4.0 5.9 5.9 7.7 10.3 15.9 19.6 28.3

DELIVERY TO LOCATIONThe Dailey Lubricated Bumper Sub is delivered to location with the mandrel in the closed position. The fully closedposition will leave an approximate 1" gap between the bottom of the box end of the mandrel and the top of the upperhousing. This design prevents debris from the well bore fluid from being driven into the upper seals when the BumperSub is closed. If there is a gap of more than one inch (1"), apply a light downward force to close the Bumper Sub.

Always check for any visible indications that the Bumper Sub has been leaking.

All service breaks on the Dailey Lubricated Bumper Sub are torqued at the Service Center and do not require furthertightening before running it in the hole. Also do not break any connections when laying the Bumper Sub down.

PROPER OPERATION

DAILEY®

LUBRICATED BUMPER SUB


PICKING UP AND LAYING DOWNPicking the Bumper Sub up and laying it down should be handled in the same manner as other jarring tools. Becausethe Bumper Sub is a sliding mandrel in a sleeve there are some special handling guidelines. Always tie the pick up linearound the middle of the Bumper Sub and make sure that it is balanced when being hoisted to the rig floor. Never tieon to just one end of the Bumper Sub, this may allow the mandrel to extend unexpectedly. Do not use the gap at thetop of the Bumper Sub as a tie on point when picking the tool up or when laying it down. If necessary, use a tailing ropeor chain to control the motion of the Bumper Sub while it is being picked up or laid down. Use thread protectors whilehandling the Bumper Sub, do not allow the pin or box connections to be abused during handling. Damage to the connectionwill lead to: a) improper makeup torque on the connection, b) galling of the connection or c) wash out of the connection.

APPLICATIONS - FISHINGThe Lubricated Bumper Sub can be used in any application (fishing, coring, washover, etc.) where the operator requiresa downward blow to a stuck point, tight spot, to release fishing tools, to activate shearing mechanisms or to break offa core before retrieving it. The Bumper Sub is also capable of providing an upward blow to a stuck point. The BumperSub allows the operator to “feel” for the top of a “Fish” without applying excess weight. When used with cutting toolsthe sliding sleeve effect of the Bumper Sub will allow the operator to adjust the weight to the cutting tool and preventoverloading or stalling. To increase the impact up or down the operator, through manipulation of the fishing string,can use the rebound of the string to increase impact values.

APPLICATIONS - DRILLINGThe Dailey Lubricated Bumper Sub has also been used together with the Dailey Hydraulic Fishing Jar as a Slim HoleDrilling Jar. The Bumper Sub is made up on the bottom of the Fishing Jar and run as a combination tool. The ruggedinvolute splines of the Dailey products allow the tools to be rotated without damage to the tools. This ability along withthe pump open effect has been used in Directional Wells, Horizontal Wells and in Window Milling Applications toincrease the R.O.P. or reduce the Window Milling time.

POSITIONING IN THE STRING - FISHINGDailey recommends that the Bumper Sub be run directly above the fishing tool and immediately below the HydraulicFishing Jar for maximum effectiveness.

POSITIONING IN THE STRING - DRILLINGWhen being used in conjunction with the Hydraulic Fishing Jar, the Bumper Sub can be made up on the bottom of theFishing Jar as a combination tool and positioned in the string in the same manner as a Drilling Jar.

INSTALLATION IN THE STRING - FISHING or DRILLINGThe Dailey Lubricated Bumper Sub is installed in the string in the same manner as other BHA components. The BumperSub is installed with pin connection down and box connection up. All service breaks are torqued to manufacturer’srecommended value, therefore, the only connections that need to be tightened are the box & pin connections that connectthe Bumper Sub to the other components of the BHA or fishing assembly. Always unlock the rotary and use two pairsof tongs when making the Bumper Sub up in the string or breaking the it out of the string. Never use the rotary to breakthe torque on the connection or to back into the Bumper Sub when making it up in the string. A Drill Collar Safety Clampmust be installed on the Bumper Sub above the slips if the it is left unsupported in the rotary. This is to prevent the Subfrom sliding through the slips. When making the Bumper Sub up or breaking it out of the string, position the it as low inthe slips as possible still leaving enough room to install the Drill Collar Safety Clamp and get the tongs on the BumperSub. This will help to prevent bending or breaking of the Bumper Sub due to lateral forces exerted on the it by use ofconventional make up or break out tongs. If power tongs are being used this should not be a problem. Dailey recommendsthat the Bumper Sub be run in the hole in the “Stretched Open” position.

DAILEY®



DAILEY®


STAND BACK PROCEDURES - FISHING and DRILLINGDailey does not recommend that the Dailey Lubricated Bumper Sub be racked back in the derrick while the string isout of the hole. In fishing or drilling applications, Dailey recommends that the when the string is out of the hole and theBumper Sub will not remain suspended in the elevators, that it be removed from the string and laid down.

DOWN HOLE OPERATIONThe down hole activation of the Dailey Lubricated Bumper Sub requires only the raising or lowering of the string. Theimpact generated by the Dailey Lubricated Bumper Sub is dependent on the speed at which the string is raised or lowered.The operator can dramatically increase the impact generated by the Bumper Sub, up or down, by careful use of the springtendency of the drill string. The string may be raised or lowered as fast as the operator desires with no adverse effecton the Bumper Sub.

ROUTINE MAINTENANCEIN THE STRINGThe Dailey Lubricated Bumper Sub is a rugged, dependable downhole tool that requires very little maintenance whileon the job. To insure maximum performance, Dailey recommends that on every trip out of the hole, the rig crew usethe water hose to wash off the mandrel of the Bumper Sub and the top of the upper housing where the mandrel goesthrough the upper seals. Unscrew the Bumper Sub from the BHA at the pin end and wash with water both the I.D. ofthe pin and around the compensating piston.


DAILEY®

CBC-THRUSTER®

Spline Housing

Connector Housing

Spline Mandrel

ss

s

Hammer

Wash Mandrel

Balance Piston

Bottom Connector

Balance Housing

ss

s

Flow Restrictor

s

ss

© 1999. Weatherford. All rights reserved. 42 WFT-CBC_99-A (10/99)

PROPER OPERATIONS

The Dailey® CBC-Thruster is a downhole tool that provides Pump Open Force (POF) to apply hydraulicWeight on Bit (WOB) during drilling operations. The CBC-Thruster also absorbs weight transfer from thedrill string and keeps the Positive Displacement Motor (PDM) from stalling out.

CBC-THRUSTER PLACEMENT IN STRINGTo take full advantage of the POF generated by the CBC-Thruster, it should be run as close to the Bit aspossible. When drilling with a PDM, the CBC-Thruster should go directly above the motor.

The POF is determined by multiplying the differential pressure by the pump open area of the CBC-Thruster. This areais charted for your convenience. The differential pressure is the sum of the bit pressure drop, motor pressure drop, andthe pressure drop of any other component below the CBC-Thruster. The final WOB produced is equal to the POF lessthe frictional drag of the Bottom Hole Assembly (BHA) between the CBC-Thruster and the Bit.

The WOB applied by the CBC-Thruster can be adjusted by varying the flow rate, the bit flow area, and type of PDMused. The balancing of nozzle size and flow-rates is important in enhancing bit hydraulics. By doubling the bit differ-ential pressure drop, the POF will double and increase the rate of penetration (ROP) and sliding efficiency.

DAILEY®

CBC-THRUSTER®

O u t s id e D ia m e t e r ( i n . ) 4 3 /4 6 1 /4 7 3 /4

In s id e D ia m e t e r ( i n . ) 2 1 /4 2 1 /4 3

T o o l J o in t S iz e ( A P I) 3 1 /2 " IF 4 1 /2 " IF 6 5 /8 " R e g .

T e n s i le Y ie ld * ( x 1 0 0 0 lb s .) 5 0 0 8 3 2 1 ,6 0 0

T o r s io n a l Y i e ld * ( x 1 0 0 0 f t . lb s . ) 2 0 4 9 .3 1 0 0

A p p r o x . L e n g th C lo s e d ( f t . - i n . ) 1 1 ' - 9 " 1 2 ' - 0 " 1 5 ' - 0 "

A p p r o x . W e ig h t ( lb s . ) 4 7 5 1 ,0 0 0 1 ,6 0 0

T o t a l T r a v e l ( i n . ) 1 5 1 6 1 /2 1 9 1 /2

T h r u s t A r e a ( s q . i n . ) 1 0 .3 1 5 .9 2 8 .3

M a x im u m B H T ( ° F ) 4 0 0 4 0 0 4 0 0

CBC-Thruster® - Standard

CBC-Thruster® - Tandem

O u tside D ia m e ter (in.) 4 3 /4 6 1 /4

In s id e D ia m e ter (in.) 2 1 /4 2 1 /4

T o o l J o in t S iz e (A P I) 3 1 /2 IF 4 1 /2 IF

T e n s ile Yield* (x 1 0 0 0 lbs.) 5 0 0 8 3 2

Tors io n a l Yie ld * ( x 1000 f t . lbs.) 2 0 4 9 .3

A p p r o x . L e n g t h C l o s e d (ft. - in) 1 4 ' - 8 " 1 6 ' - 0 "

A p p r o x . W e ig h t (lbs.) 5 9 0 1 ,2 0 0

T o tal Travel (in.) 1 5 1 6 1 /2

T h r u s t Area (sq. in.) 1 6 .4 2 8 .4

M a x im u m B H T ( °F ) 4 0 0 4 0 0

SPECIFICATIONS

© 1999. Weatherford. All rights reserved. 43 WFT-CBC_99-A (10/99)

CBC-Thruster - “Pump Open Area”

RUNNING THE CBC-ThrusterWhen running the CBC-Thruster, the stand-pipe pressure gauge, not the hook load, should be used while drilling.When the drill string has been lowered to bottom, and drilling has begun, the stand-pipe pressure will increase when theCBC-Thruster nears its closed position. The CBC-Thruster is fitted with a closed position indicator (Tell Tale) whichcauses this sharp pressure increase. When the increase in stand-pipe pressure is noted, the brake should be set toallow the motor to drill ahead. When the CBC-Thruster reaches its full stroke length, the motor will stop drilling,creating a noticeable stand-pipe pressure drop due to the reduction of motor torque. The brake is released, and theoperation is repeated. For continuous drilling, the driller should note the time to drill the full stroke length of the CBC-Thruster, and close the CBC-Thruster before the end of the stroke.

If the CBC-Thruster is run above a retrievable MWD tool, the Tell Tale must be removed prior to operation. TheCBC-Thruster can be easily adjusted by selecting different size Tell Tales needed for a specific flow rate. This featureinsures that the variations in stand-pipe pressure can be noted at the surface. Contact your Dailey Representative forinformation on selection of optimum size Tell Tale.

RECOMMENDED PROCEDURE TO CHECK THE CBC-THRUSTEREach trip out of the hole, wash the mud from the polished mandrel and from inside the bottom connection. Check thepolished mandrel carefully for any sign of corrosion, pitting, or flaking of the plating.

Contact your Dailey representative if you have any questions or if assistance is required concerning the proper opera-tion of the Dailey CBC-Thruster.


DAILEY®

CBC-THRUSTER®

O.D. 4 3/4 4 3/4 6 1/4 6 1/4 7 3/4

Type Standard Tandem Standard Tandem Standard

Thrust Area(sq. in.) 10.3 16.4 15.9 28.4 28.3

DAILEY® R-A-M®

SHOCK ABSORBER

Collar Sub

Retainer Nut

s

sShock Elements

ss

ss

s

Absorber Stem

Balance Piston

Roller Barrel

Drive Stem

Bushing Barrel

© 1999. Weatherford. All rights reserved. 45 WFT-RAM_99 (10/99)

DAILEY® R-A-M® SHOCK ABSORBER

Proven for decades as a primary reducer of shock and vibration-induced drill string dam-age and bit wear, Dailey’s shock absorber works just as hard to increase penetration rates.

The Dailey® DifferenceThe Dailey® R-A-M® Shock Absorber is a time proven, first line of defense against excessive drill bit wear and drill

string damage caused by string shock and vibration. The primary benefit of shock absorption, is the allowance ofoptimum weight and rotary speeds while drilling, which translates to increased penetration rates, and lower costs perfoot.

Innovative DesignIncorporating the field-proven Roll-A-Matic® Roller/Spline Drive mechanism, the Dailey® R-A-M® utilizes drive

rollers that ride nearly frictionless in the splined mandrel as drilling weight is attained. These rollers transfer torquefrom the rotary table through the barrel directly to the bit. A stacked column of fluid and temperature-resistent rubberelements absorb vibration, while floating pistons equalize internal and external pressure. A unique linear motion bushingreduces mandrel wear, increases stabilization and virtually eliminates hole deviation.

Versatile ApplicationsDailey’s R-A-M® activates immediately with no minimum weight required, and is not limited by drilling weight,

torque, type of drilling fluid or flow rates. It can be modified for hot hole applications. The R-A-M® is best placed asclose to the drill bit as possible, but its unique design allows it to run anywhere in the drill string

R-A-M® SHOCK ABSORBER SPECIFICaTIONSO u t s i d e D i a m e t e r (in.) 6 1 /2 8 9 9 1 /2 11

In s id e D ia m e t e r (in.) 2 2 1 /4 2 1 /2 2 1 /2 2 3 /4

T o o l J o in t S iz e (A P I) - To p 4 1 /2 X H4 1 /2 I.F.

6 5 /8 R e g . 7 5 /8 R e g . 7 5 /8 R e g . 7 5 /8 R e g .

T o o l J o in t S iz e (A P I) - B o tto m 4 1 /2 R e g . 6 5 /8 R e g . 6 5 /8 R e g . 6 5 /8 R e g . 7 5 /8 R e g .

T e n s ile Y ie ld * ( x 1 0 0 0 lb s ) 1 7 9 5 9 8 5 9 8 1 ,7 0 0 1 ,0 4 6

T o r s i o n a l Yie ld * ( x 1 0 0 0 ft. lb s .) 3 5 1 1 5 1 6 8 1 6 8 3 6 4

L e n g th (ft. - in.) 1 2 ' - 6 " 1 4 ' - 0 " 1 4 ' - 6 " 1 8 ' - 0 " 1 5 ' - 0 "

W e ig h t (lb s .) 1 ,0 3 0 2 ,0 0 0 2 ,4 0 0 4 ,0 0 0 4 ,0 2 5

H o le S iz e R a n g e (in.) 7 7 /8 to 8 3 /4 8 1 /2 to 1 2 1 /4 9 5 /8 to 1 4 3 /4 1 2 1 /4 to 1 7 1 /2 1 4 3 /4 to 2 6

D y n a m ic S p rin g R a te (K IP S /in.) 1 6 3 9 0 9 0 9 0 1 1 0

M a x . W O B S tat ic ( X 1 0 0 0 lb s .) 6 5 9 0 1 1 0 1 1 0 1 3 0

M a x . W O B D y n a m ic ( X 1 0 0 0 lb s .) 2 5 0 3 6 0 4 4 0 4 4 0 5 2 0

L a teral D e fle c tio n R a tio **M a x . 1 .2 4 : 1 1 .2 1 : 1 1 .1 8 : 1 1 .1 8 :1 1 .1 4 : 1

M a x . B H T ( ºF ) 4 0 0 4 0 0 4 0 0 4 0 0 4 0 0

P u m p O p e n A r e a (sq. in.) 1 2 .5 7 1 4 .1 9 1 9 .6 3 1 7 .7 2 7 .11

1 - D yna m i c S p r i n g R a t e f i g u r e s a r e b a s e d o n c a lcu la t ions .


* * Ratio of the defection of the shock absorber to a drill collar of the same O.D., I.D., and lengthunder comparable loading conditions.

U.S. Patent No. 4,443,206 and 4,600,062


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PUMP OPEN FORCEDNT® DRILLING JARS

7 3/4” O.D.

6 1/4” O.D.

4 3/4” O.D.

Pump pressure effects cocking and down jarring. Reduce pump to idle before attempting to cork or jar down.

© 2000. Weatherford. All rights reserved. 47 POF_LI (02/2000)

PUMP OPEN FORCEL.I. MECHANICAL DRILLING JARS


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7 3/4” O.D.

6 1/4” O.D.

4 3/4” O.D.

6 7/8” O.D.

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PUMP OPEN FORCEHYDRAULIC DRILLING JARS

4 3/4” O.D. Std.

4 3/4” O.D. BB

6 1/4” O.D.

7” O.D.

8” OD &7 3/4” O.D.

9 1/2” O.D.

6 1/2” O.D.


© 2000. Weatherford. All rights reserved. 49 POF_HYP-D (02/2000)

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4 3/4” O.D.

6 1/2” O.D.

8” AND7 3/4” O.D.

9 1/2” O.D.

PUMP OPEN FORCEHYPULSE JAR SLINGER®

for DRILLING

6 1/4” O.D.

7” O.D.


© 2000. Weatherford. All rights reserved. 50 POF_CTJ (02/2000)

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1 13/16” O.D.Dual-Acting



3 1/8” O.DDual-Acting

3 3/4” O.D.Slimhole

4 1/4” O.D.Slimhole

PUMP OPEN FORCEDUAL-ACTING COILED TUBING

and SLIMHOLE JARS


dailey jars catalouge

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