calculos de ingenieria pozo

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CALCULOS UTILIZABLES DURANTE LA PERFORACION DE POZOS.

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Page 1: CALCULOS DE INGENIERIA POZO

By:Stephen

Main Testing menu

Tools & Testing Dept - Saudi Arabia

Page 2: CALCULOS DE INGENIERIA POZO

Ver 3.0

Main Testing menu

Page 3: CALCULOS DE INGENIERIA POZO

Press

Page 3

Psig Bar Kpa atms inH2O ftH2O inHg

1 1 1 1 1 1 1Psig 1 14.50326 0.145033 14.69508 0.036088 0.433 0.491159Bar 0.1 1 0.01 1.013226 0.002488 0.0299 0.033865Kpa 6.9 100 1 101.3226 0.248827 2.986 3.386542

atms 0.06805 0.986947 0.009869 1 0.002456 0.029 0.033423inH2O 27.7 401.8854 4.018854 407.2006 1 12.00 13.61002ftH2O 2.31 33.49045 0.334905 33.93338 0.083333 1.00 1.134168inHg 2.0 29.52864 0.295286 29.91918 0.073475 0.882 1

mmHg 51.7 750.0276 7.500276 759.9471 1.866272 22.40 25.4Kgs/cm^2 0.070312 1.019753 0.010198 1.03324 0.002537 0.0304 0.034534

PRESSURE CONVERSIONSPRESSURE CONVERSIONSConversions

Page 4: CALCULOS DE INGENIERIA POZO

Press

Page 4

mmHg Kgs/cm^2

1 10.019337 14.2220.001333 0.980630.133328 98.0630.001316 0.967830.535828 394.100.044652 32.84172

0.03937 28.9571 735.4989

0.00136 1.00000

PRESSURE CONVERSIONSPRESSURE CONVERSIONSConversions

Page 5: CALCULOS DE INGENIERIA POZO

Vol

Page 5

Litres US Gallons Barrels ins^3 ft^3 cm^3 m^3

1 1 1 1 1 1 1Litres 1 3.7854008 158.9868 0.016387 28.31674 0.001 1000

US Gallons 0.26417 1.00000 42.00000 0.00433 7.48051 0.00026 264.17Barrels 0.00629 0.0238095 1 0.000103 0.178107 6.29E-06 6.2898

in^3 61.024 231.000 9702.0 1.000 1728.000 0.061 61024.0ft^3 0.03531 0.13368 5.61459 0.00058 1.00000 0.00004 35.31

cm^3 1000 3785.4008 158986.8 16.387 28316.74 1 1000000m^3 0.001 0.0037854 0.158987 1.639E-05 0.028317 0.000001 1

VOLUME CONVERSIONSVOLUME CONVERSIONSVolumes

Page 6: CALCULOS DE INGENIERIA POZO

Vol

Page 6

Volumes

Page 7: CALCULOS DE INGENIERIA POZO

Temp

Page 7

Fahrenheit Celsius Kelvin Rankin1 1 1 1

Fahrenheit 1 33.8 -458.2 -459Celsius -17.22 1.00 -272.33 -272.78Kelvin 256.11 274.33 1 0.55

Rankin 461.00 493.80 1.81 1.00

TEMPERATURE CONVERSIONSTEMPERATURE CONVERSIONSTemperature

Page 8: CALCULOS DE INGENIERIA POZO

Temp

Page 8

Page 9: CALCULOS DE INGENIERIA POZO

Lengths

Page 9

Inches Feet Yards Miles mm cm m1 1 1 1 1 1 1

Inches 1 12 36 63360 0.03937 0.393701 39.37Feet 0.0833 1.0000 3.0000 5280.0 0.003 0.033 3.281

Yards 0.028 0.333 1.000 1760.00 0.001 0.011 1.094Miles 0.000 0.000 0.001 1.000 0.000 0.000 0.001

mm 25.4 304.8 914.4 1609344 1.0 10.0 1000.0cm 2.54 30.48 91.44 160934 0.10 1.00 100.00

m 0.0254 0.3048 0.9144 1609.344 0.001 0.01 1km 0.00003 0.00030 0.00091 1.60934 0.00000 0.00001 0.00100

LENGTH CONVERSIONSLENGTH CONVERSIONSLengths

Page 10: CALCULOS DE INGENIERIA POZO

Lengths

Page 10

km1

39370.0793280.8

1093.610.621

1000000100000

10001.00000

Lengths

Page 11: CALCULOS DE INGENIERIA POZO

Rates

Page 11

bbl/day bbl/min gall/min m^3/day m^3/min ltr/min1 1 1 1 1 1

bbl/day 1 1440 34 6 9057 9bbl/min 0.00 1.00 0.02 0.00 6.29 0.01gall/min 0.0 42.0 1.0 0.2 264.2 0.3m^3/day 0.2 228.9 5.5 1.0 1440.0 1.4m^3/min 0.00 0.16 0.00 0.00 1.00 0.00

ltr/min 0.1 159.0 3.8 0.7 1000.0 1.0

RATE CONVERSIONSRATE CONVERSIONSRates

Page 12: CALCULOS DE INGENIERIA POZO

Rates

Page 12

Rates

Page 13: CALCULOS DE INGENIERIA POZO

Densities

Page 13

°API S.G. ppg lb/ft^3 g/cc psi/ft bar/m1 1 1 1 1 1 1

°API <10° 10.0 >60° >60° 10.0 <10° <10°S.G. 1.068 1.000 0.120 0.016 1.000 2.309 10.209ppg 8.90 8.34 1.00 0.13 8.34 19.25 85.11

lb/ft^3 66.60 62.36 7.48 1.00 62.36 144.02 636.65g/cc 1.068 1.000 0.120 0.016 1.000 2.309 10.209

psi/ft 0.462 0.433 0.052 0.007 0.433 1.000 4.421bar/m 0.104603 0.09795 0.011749 0.001571 0.09795 0.226212 1

DENSITY CONVERSIONSDENSITY CONVERSIONSDensities

Page 14: CALCULOS DE INGENIERIA POZO

Densities

Page 14

Densities

Page 15: CALCULOS DE INGENIERIA POZO

Gas

Page 15

Choke Size (64ths) 64 Choke Size (64ths) 64Choke Coefficient 479.09 Choke Coefficient 479.09

Upstream Pressure (Psig) 2980 Upstream Pressure (Psig) 3000Downstream Temperature (deg f) 130

Gas Gravity (Air =1) 0.700

GAS RATE (Mscfd) 70599 GAS RATE (Mscfd) 80240

This routine estimates the Gas flowrate through a Fixed choke when CRITICAL FLOW exists

CRITICAL FLOW - When the Downstream Pressure is less than half of the Upstream Pressure

Use this side if you know the DownstreamTemperature and Gas Gravity

Gas flow

Page 16: CALCULOS DE INGENIERIA POZO

Gas

Page 16

This routine estimates the Gas flowrate through a Fixed choke when CRITICAL FLOW exists

CRITICAL FLOW - When the Downstream Pressure is less than half of the Upstream Pressure

Gas flow

Page 17: CALCULOS DE INGENIERIA POZO

Oil

Page 17

Upstream Pressure (psig) 4000Choke Size (64ths) 32

GOR (scf/bbl) 200

OILRATE (bpd) 15486 OILRATE (bpd)

This routine estimates the Oil flowrate through a Fixed choke using both GILBERT's and ROS's multi-phase flow equations

GILBERT EQUATION

P * ( C^1.89) Qo = 435 * (( G/1000) ^ 0.546)

ROS EQUATION

( P + 14.73 ) * ( C ^ 2) Qo = 17.4 * ( G ^ 0.5 )

P = Upstream Pressure (psig) C = Choke size (64ths) G = GOR (scf/bbl)

Oil rate

Page 18: CALCULOS DE INGENIERIA POZO

Oil

Page 18

16707

This routine estimates the Oil flowrate through a Fixed choke using both GILBERT's and ROS's multi-phase flow equations

ROS EQUATION

( P + 14.73 ) * ( C ^ 2) Qo = 17.4 * ( G ^ 0.5 )

Oil rate

Page 19: CALCULOS DE INGENIERIA POZO

Choke Nipple Gas Rate Calculations

Choke Size Co-efficient WHP WHT Gas Gravity Gas Rate Choke Size Co-efficient WHP WHT Gas Gravity Gas Rate(64ths) psig °F Air = 1 mscf/d (64ths) psig °F Air = 1 mscf/d

2/64 0.324 50/64 286.1923/64 0.918 52/64 310.6044/64 1.638 54/64 336.0595/64 2.610 56/64 362.5606/64 3.690 58/64 390.1107/64 5.166 60/64 418.7138/64 6.250 62/64 448.3719/64 7.992 64/64 479.088 3000 200.0 0.700 67195.22

10/64 9.954 68/64 543.70911/64 12.132 72/64 612.59812/64 14.440 80/64 763.26613/64 17.208 88/64 931.25114/64 20.088 96/64 1116.69715/64 23.184 112/64 1540.49416/64 26.510 1000 100.0 0.600 1467.50 128/64 2035.61217/64 30.006 2000 120.0 0.700 3000.24 42 198.894 4000 140.0 0.700 38962.7118/64 33.930 Enter unusual choke size in Box above.19/64 37.98020/64 43.640 3000 140.0 0.700 6419.5421/64 46.81822/64 51.588 Qmscfd = Coefficient x Pressure absolute23/64 56.592 sqrt(Gas gravity x Temp absolute)24/64 61.21025/64 67.32026/64 73.134 Requirements for accurate results are:-27/64 79.092 1 Critical Flow28/64 85.130 2 Dry gas29/64 91.818 3 Positive choke bean (6" long)30/64 98.532 4 Ideal Gas31/64 105.51632/64 112.720 3000 120.0 0.700 16864.8336/64 144.180 3820 215.0 0.680 25806.5640/64 179.740 3750 205.0 0.700 31362.8344/64 219.16848/64 260.990 967 111.0 0.920 11178.68

Page 20: CALCULOS DE INGENIERIA POZO

GOR2

Page 20

Separator pressure (psig) 20Oil line temperature (°f) 136

Gas gravity (Air =1) 0.751Oil API gravity @ 60°f 48.3

GOR 2 6 GOR 2 6

This routine estimates the Solution GOR ( GOR 2 ) Rs (scf/stbbl) for saturated oilusing both STANDING's and VASQUEZ & BEGG's correlations

STANDING ^1.204 p Rs = g 18 * 10 ^ yg

VASQUEZ & BEGG

C3 * api Rs = C1 * g * p^C2 * exp T + 460

p =Separator Pressure (psia) T = Oil line temperature (°f) g = Gas gravity (Air = 1) api = Oil API gravity @ 60°f yg = 0.00091(T) - 0.0125( api)C1,2,3 = constants dependant on oil API value

Oil API <= 30C1 = 0.0362C2 = 1.0937C3 = 25.724

Oil API >30C1 = 0.0178C2 = 1.1870C3 = 23.931

Rates

Page 21: CALCULOS DE INGENIERIA POZO

GOR2

Page 21

This routine estimates the Solution GOR ( GOR 2 ) Rs (scf/stbbl) for saturated oilusing both STANDING's and VASQUEZ & BEGG's correlations

VASQUEZ & BEGG

C3 * api Rs = C1 * g * p^C2 * exp T + 460

Oil API >30C1 = 0.0178C2 = 1.1870C3 = 23.931

Rates

Page 22: CALCULOS DE INGENIERIA POZO

Kfactor

Page 22

800.90763739377 0.9996504202 800.6277 0.00053###### 0 0 1### 430.0425143831458 0.112 0.993588 0.97421###

OBSERVED API 45.0

HYDROMETER TEMPERATURE 87

OIL LINE TEMPERATURE (deg f) 112

OIL API GRAVITY @ 60°f 42.5

K FACTOR 0.9738

This routine converts an observed API and Hydrometer reading to Oil API gravity @ 60°f

and works out a K factor value for a given Oil line temperature

A.P.I.

Page 23: CALCULOS DE INGENIERIA POZO

SpecificationsLinear Flow Range

FLOW METER GPM M3/DAY BBLS/DAY

SIZE

3/8 x 1(3) .3-3 1.6-16 10 to 100

1/2 x 1(3) .75-7.5 4 to 40 25 to 250

3/4 x 1(3) 2 to15 11 to 80 68 to 515

7/8 x 1(3) 3 to 30 16 to 160 100 to 1,000

1 x 1 5 to 50 27 to 270 170 to 1,700

1 x 2 5 to 50 27 to 270 170 to 1,700

1-1/2 x 2 15 to180 80 to 1,000 515 to 6,000

2 40 to 400 210 to 2,100 1,300 to 13,000

3 60 to 600 335 to 3,300 2,100 to 21,000

4 100 to1,200 540 to 6,500 3,400 to 41,000

6 200 to 2,500 1,100 to 14,000 6,800 to 86,000

8 350 to 3,500 1,900 to 19,000 12,000 to 120,000

Page 24: CALCULOS DE INGENIERIA POZO

Specifications

NOMINAL MAX

FACTOR FREQUENCY(PULSES/SEC)

22,000 (5,812) 1,100

14,500 (3,830) 1,815

2,900 (766) 725

2,300 (608) 1,150

925 (244) 771

925 (244) 771

325 (86.0) 975

55 (14.5) 365

57 (15.2) 570

30 (7.9) 600

7 (1.8) 290

3 (.8) 175

PULSES/GAL (PULSES/dm3)

Page 25: CALCULOS DE INGENIERIA POZO

Turbine

Page 25

HALLIBURTON TURBINE METERS

METER

1.5" OIL 2233 93786 937.9 0.922" OIL

3" OIL ( 1 ) 55.2 2318 23.2 37.273" OIL ( 2 )

WATER

Input pulses/bbl into Scan from table above . If meter is changed, enter new value.

Meter Calibration

from meter (pulses/gall)

Pulses per bbl

(Enter in SCAN)

Number to Enter in TOP display (1 decimal place)

(bbls)

Number to Enter in BOTTOM

display (bbl/day)

Note: The MCII analyzer should also have the correct divisor entered for accuracy.

Meters

Page 26: CALCULOS DE INGENIERIA POZO

Turbine

Page 26

Meters

Page 27: CALCULOS DE INGENIERIA POZO

3phase

Page 27

3 Phase Electrical current calculations

440 1200 0.875 1800 12597

Convert Kw to Hp Convert Hp to KwKw Hp Hp Kw

1000 1340 1380 1029

3 phase supply voltage (Volts)

Power rating of

motor (Kilowatts)

Power factor ( use 0.875)

Full load current (Amps)

Start up current (Amps)

3Phase

Page 28: CALCULOS DE INGENIERIA POZO

3phase

Page 28

3Phase

Page 29: CALCULOS DE INGENIERIA POZO

DVM

Page 29

Signal

0 whp 10000 14 1.000 5.000 32,500.0

1 wht 400 1.000 5.000

2 csg 5000 22 1.000 5.000 26,250.0

3 dsp 5000 1.000 5.000

4 dst 400 1.000 5.000

5 static 2000 1.000 5.000

6 diff 400 1.000 5.000

7 oiltemp 400 1.000 5.000

8 gastemp 400 1.000 5.0009 1.000 5.000

DVM channel

Transducer Range

Raw Voltage

Zero Value

Max Value

Calculated Reading

Raw Voltage.

Page 30: CALCULOS DE INGENIERIA POZO

DVM

Page 30

Raw Voltage.

Page 31: CALCULOS DE INGENIERIA POZO

Meters

Page 31

Meter Model Size Range ( gall/min ) Range ( bbl/day )

Type Number (inches) Minimum Maximum Minimum Maximum

Floco F2500 - 1 1 6 60 206 2057

Floco F2500 - 2 2 6 60 206 2057

Floco F2500 - 3 3 9 90 308 3086

Floco F382 2 30 250 1029 8571

Floco F383 3 30 250 1029 8571

Rotron xxxx - 20 2 25 250 857 8571

Rotron xxxx - 30 3 60 650 2057 22286

Rotron xxxx - 40 4 200 1200 6857 41113

Halliburton 1.5 15 180 500 6100

Halliburton 2 40 400 1300 13000

Halliburton 3 60 600 2100 21000

Halliburton 4 100 1200 3400 41000

Page 32: CALCULOS DE INGENIERIA POZO

Currents

Page 32

Nominal Temperature rise = 45°Ccross-sectional N° of conductors

area 2 3 4 ( mm ^2 ) (Amps) (Amps) (Amps)

2 20 17 153 27 22.5 215 35 31 28

10 53 47 4416 66 60 5525 88 81 7040 110 103 8850 130 123 10575 167 154 13295 192 184 155

RETURN TO MAIN MENU

Page 33: CALCULOS DE INGENIERIA POZO

Calcs

Page 33

Calculation interval (mins) 15 Gas meter run size (ins)Observed API gravity 53 Orifice plate size (ins)

Observed hydrometer temp (deg f) 110 Separator pressure (psig)Current meter reading (bbls) 7.1 Differential pressure (inH2O)

Previous meter reading (bbls) 0 Gas gravity (Air=1)Oil line temperature (deg f) 136 Gas line temperature (deg f)

Base Sediment & Water (BS&W) (%) 1.4Meter Factor 0.853

Shrinkage Factor 1

Oil Rate (bpd) 549.99 Gas Rate (mscfd)

GOR (scf/bbl) OGR (bbl/mmscf)

METHOD USED FOR CALCULATING OIL FLOWRATE

Vo = Volume of oil at atmospheric pressure and temperature ( i.e. 14.73 psia @ 60°f ) Vm = Volume of oil registered by meter(s) since last reading at separator pressure and temp. Cf = Measured correction factor. It is obtained by calibrating the meter with a tank during the test and includes both the meter factor ( Mf ) and the weathering factor ( Wf ) Cf = Mf * Wf Mf = Meter factor, it is to correct for any meter non linearities. Wf = Weathering factor = Volume of oil at 14.73 psia @ 60°f / Volume of oil at separator conditions. NB!! Wf = (1 -Sh) where Sh = Oil shrinkage from separator to stock tank conditions. k = Temperature correction factor from ASTM tables ( k = 1 for an oil temperature of 60°f ) BSW = Basic sediment and water measured using field centrifuge method Percent of BSW volume to total volume of oil and BSW. Vt = Volume of oil measured in tank at tank temperature since last reading.

measurement by meterVo = Vm * Cf * k * ( 1- BSW/100 )

measurement by tankVo = Vt * k * ( 1- BSW/100 )

METHOD USED FOR CALCULATING GAS FLOWRATE

hw = Differential pressure across orifice plate measured in inches of water @ 60°f Pf = Static pressure ( taken from downstream tap of Daniel's box ) measured in psia Fpv = Supercompressibility factor ( corrected for N2, H2S and CO2 ) Fb = Basic Orifice factor Fg = Specific Gravity factor Ftf = Flowing temperature factor Ftb = Temperature base factor Fpb = Pressure base factor Fr = Reynolds number factor ( equal to 1 ) Fm = Manometer factor ( equal to 1 ) Y2 = Expansion factor for downstream pressure tap Unit Conversion factor = Factor changing flowrate units

Corrected oil flowrate ( Qo ) Vo / Time to produce the volume Vo

Calc Rates

Page 34: CALCULOS DE INGENIERIA POZO

Calcs

Page 34

GAS FLOWRATE FACTORS

Sqrt (hw*Pf) 0.00Fpv 1.0000 Supercompressibility factor

Fb #DIV/0! Basic Orifice factorFg #DIV/0! Specific gravity factorFtf 1.06322 Flowing temperature factorY2 #DIV/0! Expansion factor for downstream pressure tap

Ftb 60 Temperature base factorFpb 14.73 Pressure base factor

Fu 24 Value for gasrate in scfd (14.73psia @ 60°f)C1 #DIV/0!C2 #DIV/0!

C #DIV/0!

METHOD USED FOR CALCULATING GAS FLOWRATE

hw = Differential pressure across orifice plate measured in inches of water @ 60°f Pf = Static pressure ( taken from downstream tap of Daniel's box ) measured in psia Fpv = Supercompressibility factor ( corrected for N2, H2S and CO2 ) Fb = Basic Orifice factor Fg = Specific Gravity factor Ftf = Flowing temperature factor Ftb = Temperature base factor Fpb = Pressure base factor Fr = Reynolds number factor ( equal to 1 ) Fm = Manometer factor ( equal to 1 ) Y2 = Expansion factor for downstream pressure tap Unit Conversion factor = Factor changing flowrate units

Corrected gas flowrate ( Qg ) = C * sqrt( hw * Pf ) where C ( Orifice flow constant ) = Fpv * Fb * Fg * Ftf * Ftb * fr * Y2 * Fm * Unit

conversion factor

Fu factor Fu = Ftb * Fpb * Unit conversion factor

Standard conditions of 14.73 psia @ 60°fand gas flowrate in standard cubic feet / day

Fu factor = 24

C1 = Fu * Fg ( theoretically constant during test )C2 = Fpv * Fb * Ftf * Y2 C = C1 * C2

Group Box 19

Page 35: CALCULOS DE INGENIERIA POZO

Calcs

Page 35

#DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!14.73 0 #DIV/0! 1.063219 1 #DIV/0! #DIV/0! #DIV/0!

766.1799 0.999346 765.6785 0.000582 0.029091 0.023273 0.000677 -0.0297680.047706 0.136 0.987705 0.960118 0.959391 96 0.986 7.1

METHOD USED FOR CALCULATING OIL FLOWRATE

Vo = Volume of oil at atmospheric pressure and temperature ( i.e. 14.73 psia @ 60°f ) Vm = Volume of oil registered by meter(s) since last reading at separator pressure and temp. Cf = Measured correction factor. It is obtained by calibrating the meter with a tank during the test and includes both the meter factor ( Mf ) and the weathering factor ( Wf ) Cf = Mf * Wf Mf = Meter factor, it is to correct for any meter non linearities. Wf = Weathering factor = Volume of oil at 14.73 psia @ 60°f / Volume of oil at separator conditions. NB!! Wf = (1 -Sh) where Sh = Oil shrinkage from separator to stock tank conditions. k = Temperature correction factor from ASTM tables ( k = 1 for an oil temperature of 60°f ) BSW = Basic sediment and water measured using field centrifuge method Percent of BSW volume to total volume of oil and BSW. Vt = Volume of oil measured in tank at tank temperature since last reading.

measurement by tankVo = Vt * k * ( 1- BSW/100 )

METHOD USED FOR CALCULATING GAS FLOWRATE

hw = Differential pressure across orifice plate measured in inches of water @ 60°f Pf = Static pressure ( taken from downstream tap of Daniel's box ) measured in psia Fpv = Supercompressibility factor ( corrected for N2, H2S and CO2 ) Fb = Basic Orifice factor Fg = Specific Gravity factor Ftf = Flowing temperature factor Ftb = Temperature base factor Fpb = Pressure base factor Fr = Reynolds number factor ( equal to 1 ) Fm = Manometer factor ( equal to 1 ) Y2 = Expansion factor for downstream pressure tap Unit Conversion factor = Factor changing flowrate units

Calc Rates

Page 36: CALCULOS DE INGENIERIA POZO

Calcs

Page 36

Expansion factor for downstream pressure tap

Value for gasrate in scfd (14.73psia @ 60°f)

METHOD USED FOR CALCULATING GAS FLOWRATE

hw = Differential pressure across orifice plate measured in inches of water @ 60°f Pf = Static pressure ( taken from downstream tap of Daniel's box ) measured in psia Fpv = Supercompressibility factor ( corrected for N2, H2S and CO2 ) Fb = Basic Orifice factor Fg = Specific Gravity factor Ftf = Flowing temperature factor Ftb = Temperature base factor Fpb = Pressure base factor Fr = Reynolds number factor ( equal to 1 ) Fm = Manometer factor ( equal to 1 ) Y2 = Expansion factor for downstream pressure tap Unit Conversion factor = Factor changing flowrate units

Fu factor Fu = Ftb * Fpb * Unit conversion factor

Standard conditions of 14.73 psia @ 60°fand gas flowrate in standard cubic feet / day

Fu factor = 24

C1 = Fu * Fg ( theoretically constant during test )C2 = Fpv * Fb * Ftf * Y2 C = C1 * C2

Group Box 19

Page 37: CALCULOS DE INGENIERIA POZO

Calcs

Page 37

#DIV/0! #DIV/0! #DIV/0! #DIV/0!#DIV/0! #DIV/0! #DIV/0!

0.970671 788.8136 47.70.853 5.729017 549.9856

Page 38: CALCULOS DE INGENIERIA POZO

Tankvol

Page 38

RECTANGULAR TANK HORIZONTALHeight of tank (ins) 14 CYLINDRICAL TANKLength of tank (ins) 26 Diameter of vessel (ins) 48

Width of tank (ins) 12 Length of vessel (ft) 10Estimated Total Volume (bbls) 0.5 Estimated Total Volume (bbls) 22.4Estimated Total Volume (galls) 19 Estimated Total Volume (galls) 940

Height of fuid level in tank (ins) Height of fuid level in tank (ins) 14Estimated Tank Volume (bbls) 0.0 Estimated Tank Volume (bbls) 5.4Estimated Total Volume (galls) 0 Estimated Total Volume (galls) 227Weight of fluid in tank (ppg)

Tare weight of tank (tons)Max fluid weight (tons)

Weight of tank + fluid (tons)Max deck loading (lb/ft)

This routine estimates the total volume of a rectangular and a horizontal cylindrical tank and the contents at any given fluid level in that vessel. It also estimates the maximum weight

and deck loading of a rectangular tank

Volumes

Page 39: CALCULOS DE INGENIERIA POZO

Tankvol

Page 39

Height (ins) - H 48 H/h

Length (ft) - L 10 0.2916666667Total Volume (bbls) - V 22.4 fraction of H

Fluid level (ins) - h 14 0.29fraction of V

Volume in tank (bbls) 5.4 0.2407

Volumes

Page 40: CALCULOS DE INGENIERIA POZO

Tankvol

Page 40

Fraction Value

0.01 0.00170.02 0.00470.03 0.00870.04 0.01340.05 0.01870.06 0.02450.07 0.03080.08 0.03750.09 0.04460.10 0.05200.11 0.05990.12 0.06800.13 0.07640.14 0.08510.15 0.09410.16 0.10330.17 0.11270.18 0.12330.19 0.13230.20 0.14240.21 0.15260.22 0.16310.23 0.17370.24 0.18450.25 0.19550.26 0.20660.27 0.21790.28 0.22920.29 0.24070.30 0.25520.31 0.26400.32 0.27590.33 0.28780.34 0.29980.35 0.31190.36 0.32410.37 0.33640.38 0.34870.39 0.36110.40 0.37360.41 0.3860.42 0.39860.43 0.41110.44 0.42370.45 0.43640.46 0.449

Page 41: CALCULOS DE INGENIERIA POZO

Tankvol

Page 41

0.47 0.46170.48 0.47450.49 0.48720.50 0.50.51 0.51280.52 0.52550.53 0.53830.54 0.5510.55 0.56360.56 0.57630.57 0.58890.58 0.60140.59 0.6140.60 0.62640.61 0.63890.62 0.65130.63 0.66360.64 0.67590.65 0.68810.66 0.70020.67 0.71220.68 0.72410.69 0.7360.70 0.74770.71 0.75930.72 0.77080.73 0.78210.74 0.79340.75 0.80450.76 0.81550.77 0.82630.78 0.83690.79 0.84740.80 0.85760.81 0.86770.82 0.87760.83 0.88730.84 0.89670.85 0.90590.86 0.91490.87 0.92360.88 0.9320.89 0.94010.90 0.9480.91 0.95540.92 0.96250.93 0.96920.94 0.97550.95 0.98130.96 0.98660.97 0.99130.98 0.99520.99 0.99831.00 1

Page 42: CALCULOS DE INGENIERIA POZO

Pipesched

Page 42

Nominal Wall thickness Inside Diameterpipe Outside Schedule Schedule Schedule Schedule size Diameter 40 80 40 80(ins) (ins) (ins) (ins) (ins) (ins)

1 1.315 0.133 0.179 1.049 0.957

1.5 1.900 0.145 0.200 1.610 1.500

2 2.375 0.154 0.218 2.067 1.939

2.5 2.875 0.203 0.276 2.469 2.323

3 3.500 0.216 0.300 3.068 2.900

3.5 4.000 0.226 0.318 3.548 3.364

4 4.500 0.237 0.337 4.026 3.826

5 5.563 0.258 0.375 5.047 4.813

6 6.625 0.280 0.432 6.065 5.761

8 8.625 0.322 0.500 7.981 7.625

10 10.750 0.365 0.594 10.020 9.562

12 12.750 0.406 0.688 11.938 11.374

Schedule 40Standard Wall

Schedule 80Extra Strong

Wall

Page 43: CALCULOS DE INGENIERIA POZO

Pipesched

Page 43

Schedule 40Standard Wall

Schedule 80Extra Strong

Wall

Page 44: CALCULOS DE INGENIERIA POZO

Prefixes

Page 44

Multiplying factor Prefix Symbol

10^18 exa E

10^15 peta P

10^12 tera T

10^9 giga G

10^6 mega M

10^3 kilo k

10^2 hecto h

10^1 deca da

10^-1 deci d

10^-2 centi c

10^-3 milli m

10^-6 micro µ

10^-9 nano n

10^-12 pico p

10^-15 femto f

Prefix

Page 45: CALCULOS DE INGENIERIA POZO

Retention

Page 45

Separator capacity (bbls) 130

Separator fluid level (%) 40

Flowrate (bpd) 180

Retention Time ( mm:ss ) 416:00

This routine estimates the retention time of a separator

Retention

Page 46: CALCULOS DE INGENIERIA POZO

Retention

Page 46

416.00

416

0

00

Retention

Page 47: CALCULOS DE INGENIERIA POZO

Dosage

Page 47

Product Type Product Name Required Dosage

OIL ANTIFOAM TROS DF328 0.5 - 1 ppm

DEMULSIFIER PHASETREAT 6026E 10 ppm

SCALE INHIBITOR TROS 93-64 30 ppm

FLOWRATE ( bpd ) 3800

CHEMICAL INJECTION RATE

ANTIFOAM 0.4 cc / min

DEMULSIFIER 4 cc / min

SCALE INHIBITOR 13 cc / min

WELL TEST CHEMICALSTROS - TR OIL SERVICES ( 01224 - 884239 )

WELL TEST CHEMICALSTROS - TR OIL SERVICES ( 01224 - 884239 )

Dosage

Page 48: CALCULOS DE INGENIERIA POZO

Dosage

Page 48

Dosage

Page 49: CALCULOS DE INGENIERIA POZO

Chokes

Page 49

Choke Decimal Metricsize equivalent equivalent

( 64ths ) (ins) mm24

Choke size (64ths) 24

Decimal (ins) 0.375

Metric (mm) 9.52

CHOKE SIZE CONVERSIONSCHOKE SIZE CONVERSIONSChokes

Page 50: CALCULOS DE INGENIERIA POZO

Symbols

Page 50

Description Symbol Unit

Formation Volume Factor (Gas) Dimensionless

Formation Volume Factor (Oil) psi-1

Compressibility (Gas) Cg psi-1

Compressibility (Oil) Co psi-1

Compressibility (Water) Cw psi-1

Compressibility (Formation) Cf psi-1

Compressibility (Total) Ct psi-1

Formation Thickness (Net Pay) h feet

Productivity Index (PI) J bpd/psi

Formation permeability k mD (milliDarcy)

Gradient (slope) of line on build-up plot m psi / log cycle

Initial reservoir pressure Pi psia

Description Symbol UnitBottomhole flowing pressure Pwf psiaBottomhole shut-in pressure Pws psiaPressure 1 hour after shut-in P1hr psiaExtrapolated pressure (pressure at X=1) P* psiaProduction rate at surface (Gas) Qg MscfdProduction rate at surface (Oil) Qo stobpdWellbore radius (open hole not casing size) rw ins or feetSkin factor S dimensionlessPressure drop due to Skin at wellbore psiaFlowing Time t hoursShut-in Time hoursGas deviation factor z dimensionless

Description Symbol UnitPorosity f % or fractionViscosity (Gas) cp (centipoise)Viscosity (Oil) mo cp (centipoise)

bg

bo

dPskin

dt

mg

STANDARD OILFIELD SYMBOLS AND UNITSSTANDARD OILFIELD SYMBOLS AND UNITSSy

Page 51: CALCULOS DE INGENIERIA POZO

Symbols

Page 51

STANDARD OILFIELD SYMBOLS AND UNITSSTANDARD OILFIELD SYMBOLS AND UNITSSy

Page 52: CALCULOS DE INGENIERIA POZO

Meter Factor Calibration Data Sheet

DATE 24-Dec-98 METER SIZE 1.5 inch

TIME 0:00

TEST NUMBER 2 TANK NUMBER 1

API @ 60 F 48 TANK FACTOR 0.43478

TANK TEMPERATURE F 90 METER TEMPERATURE F 90

INITIAL TANK (reading cm ) 12 INITIAL METER (bbls ) 10

FINAL TANK (reading cm ) 24 FINAL METER (bbls ) 20

TANK INCREASE ( bbls ) 5.22 METER INCREASE (bbls) 10.00

K FACTOR 0.9822 K FACTOR 0.9917

TANK VOLUME INCREASE 5.12 METER VOLUME INCREASE 9.92

CORRECTION FACTOR (Cf) 0.517

TANK CONVERSION FACTORS

Tank Number 1 : 1 cm = 0.43478 bblsTank Number 2 : 1 cm = 1.00 bblsTank Number 3 : 1 cm = 1.00 bbls

Meter Calibration should be performed at least once per 12 hour flow period and following a choke /rate change.

Note: Do not input in yellow shaded cells.

Page 53: CALCULOS DE INGENIERIA POZO

Meter Factor Calibration Data Sheet

Meter Calibration should be performed at least once per 12 hour flow period and following a choke /rate change.

Page 54: CALCULOS DE INGENIERIA POZO

Argentometic Method for Chloride Determination

A Quantity of silver nitrate used (ml ) 7

B Titration for blank (ml ) if not distilled water 0

N Strength of silver nitrate (AG No. ) 0.28

D ml of sample 0.5

Result in ppm chlorides 138,964

For Sodium Chloride in (mg NaCl) 229,291

mg CL per litre ( same as ppm ) =

Note: A Measure the quantity of silver nitrate used

B If not using distilled water check cl of blank (or use zero for distilled water).

N Check the bottle for the strength of silver nitrate solution.

D For normal determination use 1ml of sample.

( A-B ) x N x 35450ml of sample (D)

Page 55: CALCULOS DE INGENIERIA POZO

Argentometic Method for Chloride DeterminationFormation Salinity Pressure Equivalent

Water Chloride ppm NaCl Gradient Mud WeightType mg/litre ( psi/ft ) ( ppg )

Fresh Water 0 0 0.433 8.34

6,098 10,062 0.435 8.38Brackish Water 12,287 20,274 0.438 8.43

24,921 41,120 0.444 8.55Seawater 33,000 54,450 0.448 8.63

37,912 62,555 0.451 8.68Saltwater 51,296 84,638 0.457 8.80

64,987 107,229 0.464 8.93

Formation Salinity Pressure Equivalent Water Chloride ppm NaCl Gradient Mud WeightType mg/litre ( psi/ft ) ( ppg )

65,287 107,724 0.465 8.95

79,065 130,457 0.470 9.05

93,507 154,287 0.477 9.18

Typical 108,375 178,819 0.484 9.32

Offshore 123,604 203,947 0.490 9.43

Gradients 139,320 229,878 0.497 9.57

155,440 256,476 0.504 9.70

171,905 283,643 0.511 9.84

188,895 311,677 0.518 9.97

Saturated Saltwater 191,600 316,140 0.519 9.99

TYPICAL SALINITY VALUES

TYPICAL SALINITY VALUES

Page 56: CALCULOS DE INGENIERIA POZO

PRESSURE DROP FORMULAS

For a flow through an orifice or choke the energy equation is:

For practical purposes V1 is very small as compared to V2

V2 Outlet Velocity =

V1 Inlet Velocity = 32000 x mm

D^2 X P1

the flow pipe.

Example ( Inlet Velocity ) Example ( Outlet Velocity )

Constant 32000 Upstream 6000 Enter values in Blue boxes onlyQ mm 50 1600000 D/stream 500 V2= 104.88

Dia ^2 9 30.13 X2 11000 V1= 30.13

Upstream 5900 53100 Sqrt 104.88 75 Resultant velocity

This calculation will show if our flow velocities are within 80ft/sec. This is an empirical value calculation indicating that beyond 80ft/sec

the gas starts expanding very rapidly and velocities increase due to the expansion.

( Based on Bernoulli's principle )

P1 is pressure energy ( Absolute pressure )

V1 is the velocity

Z1 is the elevation of the system from the ground.

D = diameter in inches of

P1+V1^2+Z1g = P2+V2^2Z2g---------------------------------------- 2

P1+V1^2+Z1g = P2+V2^2Z2g---------------------------------------- 2

2 X ( P1 - P2 ) 2 X ( P1 - P2 )

32000 x Q (mmscf)--------------------------------------- D^2 x P1

32000 x Q (mmscf)--------------------------------------- D^2 x P1

Page 57: CALCULOS DE INGENIERIA POZO

Enter values in Blue boxes only

This calculation will show if our flow velocities are within 80ft/sec. This is an empirical value calculation indicating that beyond 80ft/sec

Page 58: CALCULOS DE INGENIERIA POZO

Swages

Page 58

Hose Pipe or Part N°

I.D. Dash Size Thread Coupling Die Pusher

3/16 -4 7/16 - 20 3903 - 03544 4540 - 303 4599 - FP011

1/4 -4 7/16 - 20 3903 - 04544 4540 - 304 4599 - FP012

3/16 -4 7/16 - 20 390H - 03544 4540 - H03 4599 - FP011

1/4 -4 7/16 - 20 390H - 04544 4540 - H04 4599 - FP012

SYNFLEX HOSE SWAGED COUPLINGSSynflex

Page 59: CALCULOS DE INGENIERIA POZO

Swages

Page 59

SYNFLEX HOSE SWAGED COUPLINGSSynflex

Page 60: CALCULOS DE INGENIERIA POZO

document.xls 04/08/2023

Pressure Drop in (Edit the values in red)Straightening Vanes Steam: Enter Column E & H

Gas Liquid Steam GAS LIQUID

NOMINAL CV Flow Flow Flow SG SG P T PRESSURE PRESSURE

PIPE SIZE VALUE [SCFH] [GPM] [PPH] [GAS] [LIQUID] [PSI] [DEG F] DROP[psi] DROP[psi]

2 128 300000 3000 21548 0.500 0.56 180 200 14.52 307.623 304 300000 3000 21548 0.500 0.56 180 200 2.57 54.544 558 300000 3000 21548 0.500 0.56 180 200 0.76 16.196 1325 300000 3000 21548 0.500 0.56 180 200 0.14 2.878 2450 300000 3000 21548 0.500 0.56 180 200 0.04 0.84

10 3940 300000 3000 21548 0.500 0.56 180 200 0.02 0.3212 5850 300000 3000 21548 0.500 0.56 180 200 0.01 0.1514 8100 300000 3000 21548 0.500 0.56 180 200 0.00 0.0816 10750 300000 3000 21548 0.500 0.56 180 200 0.00 0.0418 13750 300000 3000 21548 0.500 0.56 180 200 0.00 0.0320 17200 300000 3000 21548 0.500 0.56 180 200 0.00 0.0222 22000 300000 3000 21548 0.500 0.56 180 200 0.00 0.0124 25400 300000 3000 21548 0.500 0.56 180 200 0.00 0.0126 27750 300000 3000 21548 0.500 0.56 180 200 0.00 0.0128 35400 300000 3000 21548 0.500 0.56 180 200 0.00 0.0030 41000 300000 3000 21548 0.500 0.56 180 200 0.00 0.0036 61000 300000 3000 21548 0.500 0.56 180 200 0.00 0.0042 85000 300000 3000 21548 0.500 0.56 180 200 0.00 0.00

Gas Flow: Enter Column C, F, H, & I

Liq Flow: Enter Column D & G

Page 61: CALCULOS DE INGENIERIA POZO

document.xls 04/08/2023

/PBA1..H23~LMR125~L10~QQDPAASAFQ

/FSR/FRLIQVANE.WQ1~/FSR/FRSATVANE.WQ1~

/FXY

Page 62: CALCULOS DE INGENIERIA POZO

document.xls 04/08/2023

Steam

PRESSURE

DROP[psi]

47.558.432.500.440.130.050.020.010.010.000.000.000.000.000.000.000.000.00

Page 63: CALCULOS DE INGENIERIA POZO

Flow Rate Conversions

FROM / TO LTRS / SEC GAL / MIN FT3 / SEC FT3 / MIN BBL /HOUR BBL /DAY

LTRS / SEC 1 15.85 0.03532 2.119 22.66 543.8

GAL / MIN 0.06309 1 0.00223 0.1337 1.429 34.3

FT3 / SEC 28.32 448.8 1 60 641.1 15400

FT3 / MIN 0.4719 7.481 0.01667 1 10.69 256.5

BBL /HOUR 0.04415 0.6997 0.00156 0.09359 1 24

BBL /DAY 0.00184 0.02917 650000 0.0039 0.04167 1

NOTE: CHANGE VALUES IN BLUE BOXES ONLY

Page 64: CALCULOS DE INGENIERIA POZO

Flow Calc.

Page 64

GAS / OIL FLOW RATE THROUGH CHOKE

3000 psia Wellhead Pressure

200 °F Wellhead Temperature

64 64 ths Manifold Choke

100 scf/bbl Gas/Oil Ratio (Qo only)

72225 Mscf Gasrate (estimate)

62851 bbl Oilrate (estimate)

39619.89975

1

Flow

Page 65: CALCULOS DE INGENIERIA POZO

Gravity

Page 65

OIL GRAVITY CONVERSION

0.816 Observed S.G42.0 Observed API80.0 Observed Temperature

0.824 S.G @ 60°F40.3 API @ 60°F

Page 66: CALCULOS DE INGENIERIA POZO

Shr Factor

Page 66

ESTIMATE OF SHRINKAGE FACTOR

710 Sep. pressure (psig)136 Sep.Temperature (°f)

0.751 Observed Gas S.G52.0 Observed Oil API

110.0 Observed Temperature

0.8068 ( 1-Shr ) @ 60°F

0.77251.9

348.745368395621.223494859997

609.175398998981.2394554939628

Shrink

Page 67: CALCULOS DE INGENIERIA POZO

Twin Chokes

Page 67

EFFECTIVE AREA OF TWIN CHOKES

46 64 ths Diameter of choke 146 64 ths Diameter of choke 2

65.1 64 ths Combined choke

0.718750.71875

Twin

Page 68: CALCULOS DE INGENIERIA POZO

Gas rates by Choke Coefficient

C = Constant 605.4A = Choke Size (Area in square ins)P1 = Upstream Pressure ( psig )

(C) * (A) * (P1) * (Cd) Cd = Constant 0.83mscf/d = ((T) * (Yg) * (Z)) ^0.5 T = Temperature Rankin

Yg = S.G of the GasZ = Constant 0.9

Enter choke size 64Enter downstream temperature in deg F 130

Enter Upstream pressure 3000Enter S.G of the gas 0.7

mscf/d 61734.09mmscf/d 61.734

Formula

64 C= 605.4 T= 5901 A= 0.7857 Yg= 0.7

0.5 P1= 3014.7 Z= 0.90.25 Cd= 0.83 0.5

0.7857 1190204 19.27952

Choke

Page 69: CALCULOS DE INGENIERIA POZO

Gas rates by Choke Coefficient

Choke Size (Area in square ins)Upstream Pressure ( psig )

61734.1

Page 70: CALCULOS DE INGENIERIA POZO

document.xls 04/08/2023

PRESSURE DROP FOR STRAINERS

LINE BODY ANSI MAWP LINE BODY D1/D2 Kexp Kcon Ktot J GPM S.G. VEL. BASKET BODY TOTAL KSIZE SIZE RATING I. D. I.D. FT/SEC PSI PSI PSI STRNR

2 4 150 285 2.067 4.026 0.513 0.542 0.368 0.910 0.0175 2550 0.85 243.87 884.65 309.18 1193.83 3.52300 740 2.067 4.026 0.513 0.542 0.368 0.910 0.0175 2550 0.85 243.87 884.65 309.18 1193.83 3.52600 1480 2.067 3.826 0.540 0.501 0.354 0.856 0.0175 2550 0.85 243.87 884.65 290.51 1175.16 3.46900 2220 1.936 3.624 0.534 0.511 0.357 0.868 0.0175 2550 0.85 277.99 1149.51 382.99 1532.50 3.47

2.5 6 150 285 2.469 6.065 0.407 0.696 0.417 1.113 0.0175 225 0.85 15.08 3.38 1.45 4.83 3.72 300 740 2.469 6.065 0.407 0.696 0.417 1.113 0.0175 225 0.85 15.08 3.38 1.45 4.83 3.72 600 1480 2.469 5.761 0.429 0.666 0.408 1.075 0.0175 225 0.85 15.08 3.38 1.40 4.78 3.68 900 2220 2.323 5.501 0.422 0.675 0.411 1.086 0.0175 225 0.85 17.04 4.32 1.80 6.12 3.693 6 150 285 3.068 6.065 0.506 0.554 0.372 0.926 0.0175 400 0.85 17.36 4.48 1.59 6.08 3.53

300 740 3.068 6.065 0.506 0.554 0.372 0.926 0.0175 400 0.85 17.36 4.48 1.59 6.08 3.53600 1480 3.013 5.761 0.523 0.528 0.363 0.891 0.0175 400 0.85 18.00 4.82 1.65 6.47 3.50900 2220 2.900 5.501 0.527 0.521 0.361 0.882 0.0175 400 0.85 19.43 5.62 1.90 7.52 3.49

4 8 150 285 4.026 7.981 0.504 0.556 0.373 0.929 0.0175 650 0.85 16.39 3.99 1.42 5.42 3.53300 740 4.026 7.981 0.504 0.556 0.373 0.929 0.0175 650 0.85 16.39 3.99 1.42 5.42 3.53600 1480 3.826 7.625 0.502 0.560 0.374 0.934 0.0175 650 0.85 18.14 4.90 1.76 6.65 3.54900 2220 3.624 7.187 0.504 0.556 0.373 0.929 0.0175 650 0.85 20.22 6.08 2.17 8.25 3.53

6 10 150 285 6.065 10.020 0.605 0.401 0.317 0.718 0.009 1250 0.85 13.89 1.47 0.79 2.27 2.06300 740 6.065 10.020 0.605 0.401 0.317 0.718 0.009 1250 0.85 13.89 1.47 0.79 2.27 2.06600 1480 5.761 9.562 0.602 0.406 0.319 0.724 0.009 1250 0.85 15.39 1.81 0.98 2.79 2.06900 2220 5.501 8.750 0.629 0.366 0.302 0.668 0.009 1250 0.85 16.88 2.18 1.09 3.27 2.01

8 12 150 285 7.981 12.000 0.665 0.311 0.279 0.590 0.022 2450 0.7 15.72 3.80 0.69 4.49 3.86300 740 7.981 12.000 0.665 0.311 0.279 0.590 0.022 2450 0.7 15.72 3.80 0.69 4.49 3.86600 1480 7.625 11.062 0.689 0.275 0.262 0.538 0.022 2450 0.7 17.22 4.57 0.75 5.32 3.81900 2220 7.187 10.500 0.684 0.282 0.266 0.548 0.022 2450 0.7 19.38 5.78 0.97 6.75 3.82

10 16 150 285 10.020 15.250 0.657 0.323 0.284 0.607 0.0105 5200 0.85 21.16 4.00 1.55 5.55 2.17300 740 10.020 15.000 0.668 0.307 0.277 0.584 0.0105 5200 0.85 21.16 4.00 1.49 5.49 2.15600 1480 9.562 13.935 0.686 0.280 0.265 0.545 0.0105 5200 0.85 23.24 4.82 1.68 6.50 2.11900 2220 8.750 13.124 0.667 0.309 0.278 0.586 0.0105 5200 0.85 27.75 6.87 2.58 9.45 2.15

12 18 150 285 12.000 17.250 0.696 0.266 0.258 0.524 0.0105 8000 0.85 22.70 4.60 1.54 6.14 2.09300 740 12.000 17.000 0.706 0.252 0.251 0.503 0.0105 8000 0.85 22.70 4.60 1.48 6.08 2.07600 1480 11.626 15.688 0.741 0.203 0.225 0.429 0.0105 8000 0.85 24.18 5.22 1.43 6.65 1.99900 2220 10.500 14.876 0.706 0.252 0.251 0.503 0.0105 8000 0.85 29.65 7.85 2.52 10.37 2.07

16 24 150 285 15.25 23.25 0.656 0.325 0.285 0.610 0.0076 12000 0.85 21.08 2.87 1.55 4.42 1.74300 740600 1480900 2220

20 30 150 285 19.25 29.25 0.658 0.321 0.283 0.605 0.0076 18000 0.85 19.85 2.54 1.36 3.91 1.74300 740600 1480900 2220

STRAINER MESH FACTOR

MESH SIZE J40x40x0.010 0.022020x20x0.016 0.0135

0.125"HL ON 0.188" CTRS 0.01754 x 4 X 0.063 0.00903 x 3 x 0.092 0.01052 x 2 x 0.105 0.0076

Page 71: CALCULOS DE INGENIERIA POZO

DRY GAS FLOW THRU POSITIVE CHOKEWhen critical conditions exist and specific gravity : G =0.7

555453525150 5049484746 48/64454443424140 403938 44/6437363534333231 40/6430 302928272625 36/642423222120 201918 32/64171615 28/6414131211 24/6410 10

98765 At 3750 psig4 on a 28/64 3 Gas rate = 15.521 Pressure Upstream of Choke x 1000, psig0### ### ### ### ### 5

Page 72: CALCULOS DE INGENIERIA POZO
Page 73: CALCULOS DE INGENIERIA POZO

GENERAL CACULATIONS

GAS VELOCITY V = (2122 x Bg x Q)/(D)^2

where :

Z = 1/Fpv T = Upstream temp. deg F + 460 Bg = 0.02833 x ((Z x T)/P)

P= Upstream pressure psia Q = Gas Q (mscf/d) D = Line ID"

Z = 0.973 T = 540 deg F P = 4000 psia

Q = 40.000 mscf/d D = 2.85 ins

V = 76.09 ft/sec.

GAS VOLUME (1) Q = 0.000471 x ((D)^2 x V)/Bg

where :

Z = 1/Fpv Bg = 0.02833 x ((Z x (T + 460) / P)

P= Upstream pressure psia T = Upstream temp. deg F

V = Gas velocity (ft/sec.) D = Line ID"

Fpv = 0.973 T = 160 deg F P = 2170 psia

D = 0.75 ins V = 76.09

Q = 2.423 mmscf/d

GAS VOLUME (2) Q = P x (D)^2 x 24

where :

P= Upstream pressure psia D= choke size in 64ths

P = 3000 psia D = 32 ins

Q = 1.800 mmscf/d

TWIN CHOKE FACTOR D = ¦((d1)^2 + (d2)^2)

where :

D = Actual orifice size d = Choke size (64th")

d1 = 46 64ths d2 = 46 64ths

D = 65 64th" 1.02 ins

Page 74: CALCULOS DE INGENIERIA POZO

OIL VOLUME Q = (P x (D)^1.89)/435 x (GOR/1000)^0.546

where :

P= Upstream pressure psig D = Choke size (64th")

P = 3000 psig GOR = 250 scf/bbl

D = 32 64ths BSW = 25.0 %

Q = 10282 bopd Water Q = 2571 bpd (Gas Q = ) 2.571 mmscfd

OIL S.G. TO API OIL API TO S.G.

S.G. = 0.946 deg API = 45.0 deg

API = 18.1 deg S.G. = 0.802 deg

CORRECTED S.G. @ 60°F

Observed SG = 0.6 Observed T° = 84 deg F

SG @ 60°F = 0.611 API @ 60°F = 100.0106

SHRINKAGE FACTOR (FROM TABLES)

S = 1/(((((0.02-(0.00000357 x (1.797/S.G. - 1.838) x P)) x (141.5/S.G. - 131.5) + 0.25)

/S.G.)^0.5 x ((1.797/S.G. - 1.838) x P) = 1.25 x T)^1.2 x 0.00012 = 0.9759)

where :

S.G. = Oil S.G. @ 60°F P = Separator pres. psig T = Oil temp. °F

S.G. @ 60°F = 0.946 Oil temp. = 124 deg F Sep. pres. = 130 psig

Shrinkage = 0.971

Page 75: CALCULOS DE INGENIERIA POZO
Page 76: CALCULOS DE INGENIERIA POZO

mmscfd

Page 77: CALCULOS DE INGENIERIA POZO

Wishful Thinking !!!!!

Page 78: CALCULOS DE INGENIERIA POZO

tankrates

Page 78

2 10:00 9.6 11:00 182

2 Enter the intial tank reading ( Use 0 for new rate )

24 Enter the final height in cm. ( Note: 1cm = 0.4348 bbls )

10:00 Enter the start time ( diverted to tank ) hh:mm

10:30 Enter end time ( Diverted from tank ) hh:mm

Initial Tank

Reading (bbls)

Start Time

(hh:mm)

Final Tank

Reading (bbls)

End Time

(hh:mm)

Estimated Tank Rate

(bpd)

FLOWRATES BASED ON TANK READINGS

Page 79: CALCULOS DE INGENIERIA POZO

bottomsup

Page 79

1200 0.8 320 384 06 : 24

flowrate ( bpd )

flowrate ( bpm )

tubing volume ( bbls )

time taken for bottoms up

(mins )

time taken for bottoms up

(hh : mm )

This routine estimates the time it will take for bottoms up based on tubing volume and current flowrate

Page 80: CALCULOS DE INGENIERIA POZO

bottomsup

Page 80

total mins hours hh

384 6 0 00

06 1 012 023 034 045 056 067 078 089 09

10 1011 1112 1213 1314 1415 1516 1617 1718 1819 1920 2021 2122 2223 23

Page 81: CALCULOS DE INGENIERIA POZO

bottomsup

Page 81

mins mm

24 0 00

24 1 012 023 034 045 056 067 078 089 09

10 1011 1112 1213 1314 1415 1516 1617 1718 1819 1920 2021 2122 2223 2324 2425 2526 2627 2728 2829 2930 3031 3132 3233 3334 3435 3536 3637 3738 3839 3940 4041 4142 4243 4344 44

Page 82: CALCULOS DE INGENIERIA POZO

bottomsup

Page 82

45 4546 4647 4748 4849 4950 5051 5152 5253 5354 5455 5556 5657 5758 5859 59

Page 83: CALCULOS DE INGENIERIA POZO

ansiflanges

Page 83

Service Flange NOMINAL PIPE SIZEPressure Bolting facing

Rating 1 2 3 4 6 8 10 12 14 16 18 20

Number 4 4 4 4 8 8 12 12 12 16 16 20

150# Diameter 1 1

Length of 4 6

275 psi stud bolts RTJ 6

Ring Size R 15 22 29 36 43 48 52 56 59 64 68 72

Service Flange NOMINAL PIPE SIZEPressure Bolting facing

Rating 1 2 3 4 6 8 10 12 14 16 18 20

Number 4 8 8 8 12 12 16 16 20 20 24 24

300# Diameter 1

Length of 5 7

720 psi stud bolts RTJ 5 7 9

Ring Size R 16 23 31 37 45 49 53 57 61 65 69 73

RX - 23 31 37 45 49 53 57 61 65 69 73

Service Flange NOMINAL PIPE SIZEPressure Bolting facing

Rating 1 2 3 4 6 8 10 12 14 16 18 20

Number 4 8 8 8 12 12 16 20 20 20 20 24

600# Diameter 1

Length of 5 10

1440 psi stud bolts RTJ 6 7 8 9 11

Ring Size R 16 23 31 37 45 49 53 57 61 65 69 73

RX - 23 31 37 45 49 53 57 61 65 69 73

1/25/8

5/85/8

3/43/4

7/87/8 1 1/8 1 1/8

1/16 RF 2 3/4 3 1/4 3 3/4 3 3/4 4 1/4 4 3/4 4 3/4 5 1/4 5 1/2 6 1/4

3 1/4 3 3/4 4 1/4 4 1/4 4 1/2 4 1/2 5 1/4 5 1/4 5 3/4 6 1/2 6 3/4

5/85/8

3/43/4

3/47/8 1 1/8 1 1/8 1 1/4 1 1/4 1 1/4

1/16 RF 3 1/4 3 1/2 4 1/4 4 1/2 5 1/2 6 1/4 6 3/4 7 1/2 7 3/4 8 1/4

3 3/4 4 1/4 5 1/4 5 3/4 6 1/4 7 1/2 7 3/4 8 1/4 8 1/2

5/85/8

3/47/8 1 1/8 1 1/4 11/4 1 3/8 1 1/2 1 5/8 1 5/8

1/16 RF 3 3/4 4 1/4 5 3/4 6 3/4 7 3/4 8 1/2 8 3/4 9 1/4 10 3/4 11 1/2

3 3/4 4 1/2 5 1/4 8 3/4 9 1/2 10 1/4 11 3/4

ANSI FLANGES - NUMBER and SIZE of STUDS and RING GASKETS

Page 84: CALCULOS DE INGENIERIA POZO

ansiflanges

Page 84

RETURN TO GASKET MENU

Page 85: CALCULOS DE INGENIERIA POZO

ansiflanges

Page 85

NOMINAL PIPE SIZE

24

20

7

76

NOMINAL PIPE SIZE

24

24

77

77

NOMINAL PIPE SIZE

24

24

13

77

77

1 1/4

7 1/2

1 1/2

9 1/4

10 1/4

1 7/8

13 1/2

Page 86: CALCULOS DE INGENIERIA POZO

NAME EMPLOYEE NUMBER CLASSIFICATION PAGE 1

OF 1

ADDRESS COMPANY DEPARTMENT LOCATION

HWL Saudi Arabia. CITY,STATE,ZIP CODE EXPENSE PERIOD

From 9- June - 00 Through 17-Aug-00

PLACE NAME/TITLE/ REASON FOR BUSINESS TRAVEL AND/OR CREDIT TYPE EMP. ONLY EMP. ONLY-TRAVEL ENTERTAINMENT CHARGE

TYPE OF AFFILIATION FULL DISCUSSION INFORMATION CARD EXPENSE MEALS AND LODGING EXPENSE OTHER CARD

DATE CITY EXPENSE OF ALL GUESTS FOR ENTERTAINMENT CHARGE DEPT. (1) (2) (3) (4)

ENTERTAINED (INCLUDE DISCUSSION DURATION) X AMOUNT AMOUNT TRAVEL AMOUNT

DISTRIBUTION TOTAL THIS PAGE

CO. CODE LOCATION DEPT SUB ACCT. $ AMOUNT SECONDARY REFERENCE TOTAL ALL PAGES

SUB-ACCOUNTS

SIGNATURES TOTAL EMPLOYEE SIGNATURE DATE

LESS

ADVANCED

APPROVED BY DATE

APPROVED BY DATE AMT. DUE

COMPA

[ ] EMPLOYEE

Page 87: CALCULOS DE INGENIERIA POZO

Gas Estimate for Aramco Khuff Gas Well's.

2995 Wellhead Pressure

195 Wellhead Temp

64 Choke size ( 64ths )

0.7 S.G. ( Enter .7 for default )

0.68 Wet factor ( Compensates for fluids ) .7 default

45.79 Estimated Flow Rate ( mmscf/day )