MOCKBA SCREEN LLC

INTRODUCTION

MOCKBA SCREENS LLC

MOCKBA SCREEN LLC is engaged in manufacturing, supply and export

of superior quality shaker screens. MOCKBA SCREEN LLC has

manufacturing facilities at Austria (EU) and distribution networks at

Dubai, Canada, Qatar and India. We mainly produce shaker screens of

Derrick, Brandt, Mongoose of various mesh size. We also produce

Hydrocyclones and polyurethane screens.

MOCKBA SCREEN LLC

Shaker Screens

Your First Line of Defense

Shaker Screens are used

during the well construction

phase of every drilling

project and in conjunction

with the Shale Shaker are the

first line of defense in solids

removal from the drilling fluid

system.

Using proprietary mesh

technology our products

deliver reliable solids removal

capability combined with high

fluid processing rates and

outstanding operational life.

MOCKBA SCREEN LLC

Reduce Drilling Costs

API RP 13C (ISO 13501)

Complaint Screen

Mockba screen LLC the API RP 13C

screen labeling practice and has

implemented this labeling on our complete

screen panel product offering.

API’s NEW API RP 13C (ISO

13501), the industries standard for

physical testing and labeling procedures of

shaker screens.

Initially screens were easy to describe.

They were square mesh made with market

grade wire. The mesh size was the number

of openings per inch in two directions.

The new recommended screen

labeling practice provides the

following API RP 13C information:

API Designation

Conductance in kD/mm

D100 Value

Non-Blanked Open Area in Square Feet

MOCKBA SCREEN LLC

API RP 13C (ISO 13501)

As an independent replacement screen manufacturer, Mockba Screen LLC has taken

extensive steps to follow the guidelines established by the American Petroleum Institute

for proper labeling with “Replacement Shaker Screens”. API RP13C compliance in

the testing procedure means that manufacturers test certain meshes using the spelled

criteria within the test. The manufacturers then label both their screens and their screen

packaging with the results of the test and are then API compliant. The procedure tests

mesh performance down to a specific micron. That micron number falls into a range

of microns. Mockba screen LLC compliant meshes are listed above, along with Table 5,

page 40 and 41 of the testing procedure to show the breakdown of API numbers and

the range of microns that fall within the API number.

Please note: Mockba screen LLC acknowledges that lab tests and actual performance

of the screen in the field are completely separate, and not to be interpreted as being

the same. The API designation is merely a unified labeling system set out to provide a

common thread amongst all of the screen manufacturers. In no way does the API

designation determine actual screen life, or the ability of one screen to outperform

another.

Table 5 found on page 40 and 41 of API RP 13 C

D 100 SEPARATION AND API SCREEN NUMBER

D 100 Separation (microns) API Screen Number

> 780, 0 to 925, 0 API 20

> 655, 0 to 780, 0 API 25

> 550, 0 to 655, 0 API 30

> 462,5 to 550, 0 API 35

> 390,0 to 462, 0 API 40

> 327,5 to 390, 0 API 45

> 275, 5 to 390, 0 API 45

> 231, 0 to 275, 0 API 60

> 196,0 to 231, 0 API 70

> 165, 0 to 196, 0 API 80

> 137, 5 to 165, 0 API 100

> 116, 5 to 137, 5 API 120

> 98, 0 to 116, 5 API 140

> 82, 5 to 98, 0 API 170

> 69, 0 to 82, 5 API 200

> 58, 0 to 69, 0 API 230

> 49, 0 to 58, 0 API 270

> 41,5 to 49, 0 API 325

> 35, 0 to 41 , 5 API 400

> 28, 5 to 35, 0 API 450

> 22, 5 to 28, 5 API 500

> 18, 5 to 22, 5 API 635

MOCKBA SCREEN LLC

Mockba screen LLC offers quality, reliability and performance in a direct replacement for

OEM screen panels

Mockba screens LLC manufactures OEM replacement screens

for most shale shakers on today’s market. Mockba screens LLC

manufactured replacement screen panels for OEM shale shakers

combine proven mesh combinations with an innovative, precision

punched patterned plate to improve separation efficiency of the

shaker, while extending screen life. These Mockba screens LLC.

manufactured OEM replacement screen panels are engineered to

meet the exact design specifications of the OEM shale shaker and

can be installed directly on the unit using the stock tensioning

system in place. Mockba screens LLC manufactured replacement

screen panels are available in a variety of mesh combinations to

best suit the needs of your drilling program. Mockba screen

LLC is capable of manufacturing custom “odd size” screen

panels for absolute shaker that are still operation.

Mockba screens LLC

lineup includes, but

not limited to:

Derrick® Equipment

Company

NOV® Brandt™

National®

M-I SWACO®

And many others

MOCKBA SCREEN LLC

Repairable Plate (PWP) Screen Panel

Mockba PWP screens are constructed of three

screen layers bonded to a perforated metal plate

for added support and facilitation of repair.

Bonding squares help maintain cut point

integrity by stabilizing the sandwich screen,

increasing durability by reducing screen flutter,

and isolating any screen failures. The screen

may be repaired using the stainless steel plugs

supplied with the panel or by application of

silicone rubber.

Flow-Line® Cleaner 2000 & flow-line® Cleaner Plus (Pyramid and Pyramid Plus Screens

(PMD and PMD+)

Mockba screens LLC has revolutionized

screening technology with the patented Pyramid

(PMD) and Pyramid Plus (PMD+) screens.

These revolutionary three-dimensional screens

offer the benefits of traditional flat multi-

layered screens while adding a significant

increase in usable Pyramid Screen (PMD)

screen area. The result is a screen that increases

fluid handling capacity. Pyramid and Pyramid

Plus screens provide an easy, cost effective

increase in shaker performance. Designed with

the latest technology, Pyramid screens allow

rigs to screen finer earlier in the drilling

process, thus significantly reducing mud and

disposal costs. All Derrick screens are API RP

13C compliant.

600 Series

Derrick’s 600 Series screens, available in Pyramid and Pyramid Plus panels, are used on all Dual

Pool 600 series shakers. The DP 600’s innovative actuated screen compression system drives the

center of the screen panel downward, firmly sealing the screen panel to the screen frame.

Compression benefits include extended screen life, improved conveyance, elimination of ultra

fine solids bypassing under screen panels and fast, user-friendly screen changes. Derrick’s long-

life urethane panels are used on models equipped with the scalping deck option.

DERRICK EQUIPMENT COMPANY

MOCKBA SCREEN LLC

API RP 13C Non - Blanked Screen Area

PMD PMD+ Urethane

DP 616 29.1 sq. ft. 35.01 sq. ft. –

DP 626 29.1 sq. ft. 35.01 sq. ft. 12 sq. ft.

DP 618 38.8 sq. ft. 46.68 sq. ft. –

DP 628 38.8 sq. ft. 46.68 sq. ft. 16 sq. ft.

500 Series

API RP 13C Non - Blanked Screen Area

PMD PMD+

FLC 513 24.9 sq. ft. 34.5 sq. ft.

FLC 514 33.2 sq. ft. 46.0 sq. ft.

48x30 Series

Derrick’s 48 x 30 screens fit all Derrick FLC 2000 3- and 4-panel shale shakers, FLC with

AWD, FLC Plus, HI-G Dryer and the Cascade 2000. They are available in Pyramid, Pyramid

Plus and PWP panels. Fast, easy and reliable screen panel tensioning is provided by two pairs of

Rapid-Change draw bolts on each side of each screen panel.

API RP 13C Non - Blanked Screen Area

PMD PMD+

FLC 2000 3-

panel 24.9 sq. ft. 31.95 sq. ft.

FLC 2000 4-

panel 33.2 sq. ft. 42.6 sq. ft.

MOCKBA SCREEN LLC

Composite frame screens: In order to meet the high demand the composite material screen is

used which could be using for longer time. Moreover, comparing with steel frame screen, the

composite material screen is much lighter. Easy for hand moving and changing. Composite

frame screen have longer service life, better appearance, and convenience on operation.

Steel frame screens: are mostly applied to the shale shakers with wedge fastening equipment.

The screen frames adopt high strength square steel tube welded to the perforated panel. They are

sturdy and reliable. These screens are constructed with two or three stainless steel layers bonded

to a steel support panel. Accessory rubber plugs may be used to repair the broken layers. We can

supply steel frame screens with mesh 20 -250.

MOCKBA SCREEN LLC

Shaker Screens

Reducing costs, waste volumes with exclusive shaker screen line

Mockba screens LLC manufactures M-I SWACO replacement shaker screens that combine

multiple mesh sizes with our patented composite frame technology to provide higher throughout

and longer life. Mockba replacement screens for M-I SWACO, Derrick, Brandt/NOV, and other

shaker brands, the exclusive line of long-lasting composite screens optimizes solids control

efficiency to reduce costs and waste volumes for any targeted formation and drilling application.

Mesh sizes for any solids control challenge

Our ultra-durable, API-compliant composite screens are available in a broad range of mesh

grades, including the patented XR mesh, which can be matched to meet the distinct solids control

challenges of different formations

Cost effectiveness without compromise

By combining a wide variety of mesh sizes with composite screen technology, Mockba screen

provides operators the flexibility of selecting the most cost-effective mesh without

compromising screen life or higher throughput capacity.

SWACO MONGOOSE SCREENS

MOCKBA SCREEN LLC

Next-generation composite screens

The Mockba line of composite OEM and replacement screens deliver even longer screen life,

greater ease of repair, higher capacity and greater cost effectiveness than metal-framed and other

conventional products.

Greater screen life and higher throughput capacity

Mockba composite screen technology effectively eliminates the inherent performance-limiting

problems of conventional metal frames, including rusting, delamination and a heavier and

reduced processing area. Mockba composite screens have as much as twice the functional life of

screens mounted on metal and can handle appreciably higher throughput capacity.

Innovative technology and groundbreaking design

Mockba composite screens include a glass fiber-filled, polypropylene frame bolstered with an

internal high-strength steel reinforcing structure. Using a patented process, one to three layers of

stainless steel wire cloth are bonded directly to the composite frame.

Longer screen life, ease of storage and re-use

The composite frame design encompasses the “window pane” effect that includes an increased

number of smaller panels, evenly distributing mechanical stresses and limiting mesh damage to

small localized areas. Conducive to rusting, Mockba composite screens can be used, stored and

re-used on future wells.

Reduced screen weight to enhance shaker G-force

Mockba composite screens weight about the same as our first generation composite HI-FLO

screens. However, they weigh up to 40% less than traditional metal-framed screens. Lower

screen weight, in turn, enhances shaker G-force.

Easy, fast screen repair from patented SNAP-LOK system

The patented SNAP-LOK plug-repair system is available on Mockba composite screens for the

M-I SWACO BEM-650 shale shaker and NOV Brandt VSM 300 shakers. The innovative SNAP-

LOK system reduces screen repair time to less than two minutes. Repair is a simple matter of

removing the screen from the shaker and snapping in a factory-made plug.

MOCKBA SCREEN LLC

Mockba replacement Screens for BRANDT shale shakers, which include the COBRA, VSM

and LCM Series shakers. Replacement screens are also manufactured for competitor equipment.

Replacement screens for competitor shale shakers combine proven mesh combinations with an

innovative, diamond-patterned plate to improve separation efficiency of the shaker, while

extending screen life. These Mockba replacement screens are engineered to meet the exact

design specifications of the competitor’s shale shaker and can be installed directly on the unit

using the stock wedges. Replacement screens are available in a variety of mesh combinations to

best suit the needs of the drilling application.

Mockba screens will enable you to gain the best energy transfer from the basket to the screen

surface while maximizing screen vibration which increases conductance (flow), cut point, and

minimizes non-blanked open area on screens.

Replacement Shaker Screens

Mockba manufactures replacement screens for competitor equipment. Mockba manufactured

replacement screens for competitor shale shakers combine proven mesh combinations with an

innovative, diamond-patterned plate to improve separation efficiency of the shaker, while

extending screen life. These manufactured replacement screens are engineered to meet the exact

design specifications of the competitor's shale shaker and can be installed directly on the unit

using the stock wedges. Mockba manufactured replacement screens are available in a variety of

mesh combinations to best suit the needs of the drilling application.

Original Equipment Manufactured (OEM) Shaker Screens

Mockba supports the API RP 13C screen labeling practice and has implemented this labeling on

the most popular screens, including the RHD and XF series. The new recommended screen

labeling practice provides the following API RP 13C information:

API Designation

Conductance in kD/mm

D100 Value

Non-Blanked Open Area in Square Feet

BRANDT COBRA SCREENS

MOCKBA SCREEN LLC

SHAKER SCREEN MANUAL

MOCKBA SCREEN LLC

The Solids Control process may seem like a complicated matter; but, in fact, it is very simple.

The object of the exercise is to remove as many drill solids at the flow line as possible. If

solids slip past the shaker they will be sheared (broken up) either by centrifugal pumps,

agitators or drill bit on the next circulation. This makes the solids smaller and more difficult

to remove the second time they pass through the system. The more low-gravity solids

removed at the flow line, the better. In order to remove the maximum amount of solids, all

solids control equipment must be in good operating order. You can help keep these units in

good working order by periodically inspecting the machine and reporting your findings to the

pusher.

The Flow Line Shaker is the primary line of defense in removing these solids. This apparatus

is designed to remove the largest particle sizes, generally larger than 72 microns. These units

run at different speeds, strokes and G-Forces. Without getting into too much detail, stroke is

the amount of movement in the shaker bed. G-Force represents the amount of energy applied

to the shaker bed. And speed is dictated by motor speed. While the shaker will separate better

at higher G forces, shaker screens are subjected to higher amounts of abrasion from solids and

mechanical force. G-Forces in excess of 7 and above have been shown to be detrimental to

screen life and the shaker itself. Most shale shakers run between 3.5 G’s and 6.5 G’s With

today’s screens, we can expect screen life of 4 to 14 days depending on loading conditions

and mud weights.

Screen performance is measured by the amount of solids that pass through them (conveyance)

and the specific size material they are separating (cut point). The cut point is measured in

microns. In order to illustrate just how small the screen openings are, please consider these

facts, knowing that 26,000 microns equals one inch - a human hair is approximately 90 microns

in diameter. Talcum powder is roughly 30 microns in diameter; thus, performance of solids

control equipment is measured by its ability to remove particles in these size ranges.

As the primary separator, the shaker will remove the primary share of drilled solids if

screened correctly. There are no rules set in stone; but, there are many practical methods of

sizing shaker screens. Normally, screen progression begins with a shaker screen having a

larger opening, and then use progressively finer meshed screens throughout the well. In

most cases the consultant or mud engineer will determine what initial screen size is desired.

Each shaker is slightly different in appearance, but each operates in very similar fashion.

Mud is introduced into the “Possum Belly” from the flow line. It is then channeled over a

weir gate, onto the energy plate, and finally over the screens. As flow rates are commonly up

to 350 G.P.M. per shaker, the shaker screens need to fit well and seal totally on the shaker

bed. As fluid then passes over the shaker screens, separation of the drilled cuttings from the

actual drilling fluid is accomplished.

The fluid should completely cover at least the first 2 screens of the shaker, leaving the 3rd

screen to dry the cuttings somewhat before being discharged. As screens are made up of at least

3 layers of wire, there is some abrasion between meshes. Running fluid over screens keeps the

wire cloth lubricated, extending life.

MOCKBA SCREEN LLC

for wear. A little time on the tanks allows everyone involved to know that you are

interested in more than just selling screens.

Most people do not realize how much material the shakers actually process. If we

take a 12-¼ inch hole being drilled to a depth of 8,500 feet, the screens have

conveyed 382.56 tons of drilled material. This doesn’t include the constant weight of

fluid used to remove cuttings from the well bore. Most of this material is very

abrasive on the top layer of wire cloth. If you have ever tried to tear a piece of 210

mesh wire cloth, you will understand how fragile it really is. So when you hear a

consultant ask, “why did my screens fail in 3 days?”, remember the figures listed

above before you decide on premature failure of a screen.

Most shakers use either balanced elliptical or linear motion. Linear motion is common

and is expressed as a straight line of movement by the shaker basket. The basket moves

horizontally conveying solids in a straight line motion. Balanced Elliptical motion uses

circular and linear motion to create an elliptical motion. Depending on the formation

that is being drilled through, each motion has its advantages and disadvantages.

Regardless of what motion the machine, they all use the same type screens and have

similar problems.

Most problems you will encounter in the field are traced back to operator error or abuse.

Most rig personnel have little or no solids control knowledge, and they rely on more

experienced hands and mud engineers that have only basic knowledge about the solids

control equipment they run. A derrick hand has to work the rig’s derrick board , mix

all the chemicals for drilling mud, keep the mud to the proper weight, keep the mud

engineer and consultant informed of mud properties, watch for increase or decrease in

mud volume, and run all equipment on mud pits as well as keep an eye on the mud

pumps. In other words he doesn’t have time to baby-sit shale shakers. If they are

running, he is happy. He does not really care what screens are on the shaker or mud

cleaner. Realize that he can help you sell your shaker screens if he does not have to

change them every day. So walking the tank and watching for shaker problems will help

you both. Making a tool pusher aware that he is missing a tension bolt, will keep your

screen from failing, which makes the derrick hand’s job easier, which gets you a

“thumbs up” when the company man asks how your screens are doing.

As screens are being installed on the shakers, no tools, boards, bolts or any other items

should be placed on the wire cloth. Make sure screens have been properly sealed against

the shaker bed. Make sure the screen is secure and not loose fitting. A loose fitting

screen will not convey material. Make sure there are no hammer strikes directly on

screens, using the wedge blocks. Look for missing or bad tension bolts on the units that

use them.

MOCKBA SCREEN LLC

Some misunderstood things about Shale Shakers.

“Replacement Screens Will VOID a Warranty”

The Original Equipment Manufacturers (OEM) are trying to force the issue on using their

screens on their own equipment. It has been said that in most cases the OEM will cancel the

warranty on their shakers if you do not use their screen. It is our understanding that NONE of

the OEM ever warranted their shaker baskets. To our knowledge, when asked, they will admit

the shaker frame or bed is warranted for defects such as cracking, warping etc., but not for

wear.

“Replacement Screens Will Ruin the Shaker Basket”

All screens wear out the cushions, support rubbers, seals, cross and side supports etc. of the

shale shaker. When asked about replacement screens, OEM’s cite that wear on these items

occur faster using screens other than OEM screens. We must remember that these items are

expendable items and are to be replaced at frequent intervals. How quickly depends on

several factors. Screens cannot be the sole factor considered for replacement of these items.

“The “Replacement” screens are heavier than the OEM screens, thus somehow impacting

the life and performance of the shaker.”

Every manufacturer of shaker screens builds their screens in a different manner. Some screens are

lighter than others, and some screens are heavier than others. Some are made of a lightweight

composite material, while some are made from steel tubing. The myth here is that the weight

difference between the OEM vs. Replacement Screen would somehow affect the life of the shaker

itself.

For these purposes, let me offer you the following example:

If a shale shaker is under normal operating conditions, the shaker bed will be flooded with at

least 50 gallons of fluid. Some shakers will run 84 gallons of fluid. At 10ppg this equals 840

pounds displaced over the 4 screens, an average of 210 pounds of fluid per screen.

Now, does anyone really think 8-10 pounds in screen weight will matter?

If so, how can the shaker withstand 17ppg mud weight with an average of 357

pounds of fluid per screen?

As you can see the weight between OEM screens vs. “Replacement” screens really does not

impact the shaker in field application.

There are a number of other myths about screens and shakers. Just remember when you

hear the next tidbit of “free advice”, be sure and “check the price.”

MOCKBA SCREEN LLC

MOCKBA SCREEN LLC

MOCKBA SCREEN LLC

CONTACT INFORMATION STOCKING POINT

Middle East:

Hamriya UAE;

Free Zone Company - F.Z.C

LOCATION-BLOCK:H1

Office No:SM-OFFICE-H1-229B

Email: uae@mockbascreen.com

Qatar:

No: 6, Al Rowda, Block no 33,

Near Pearl Indian School.

Email: qatar@mockbascreen.com

Canada:

Unit # 32 - 16233, 83 Ave

Surrey, BC V4N 0Z3

Canada

Email: Canada@mockbascreen.com

India:

No. 186, 1st Main, Vijaya bank colony,

Belekahalli, Bangalore.

Email: info@ppdrillingfluids.in

Middle East:

Hamriya UAE;

Free Zone Company - F.Z.C

LOCATION-BLOCK:H1

Office No:SM-OFFICE-H1-229B

Qatar:

No: 6, Al Rowda, Block no 33,

Near Pearl Indian School.

Canada:

Unit # 32 - 16233, 83 Ave

Surrey, BC V4N 0Z3

Canada

India:

No. 186, 1st Main, Vijaya bank colony,

Belekahalli, Bangalore.

CONTACT INFORMATION AND STOCKING POINT