mud typical well cost

7/28/2019 Mud Typical Well Cost

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FINAL WELL REPORT 2/11-10 S (T2)SECTION 11 - DRILLING DATA SUMM ARY

11.1 DRILLING FLUIDS SUMM ARY


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D R I L L IN G F LU ID S S U M M A R Y

M ud Type Summary30 " Con ductor Cleanou t Seawater / Bentonite Sweeps

9-7/8" x 26" Interval16" Interval12-1/4" Interval

8-1 /2" Interval

Spud MudNovadrilNovadrilNovadril

Sect ion L ength Dr i l led:Format ion Vo lume Dr i l led :

3 0 " C O N D U C TO R C L EA N O U T S U M M A R Y ( 1 19 - 2 0 1 M )M U D TYPE - SEAWA TER/BENTONITE SWEEPS

81 m202 bbl

M at erial

BariteBenton i teLimeSoda AshInterval M aterial Cost:

UnitSizeMTMT

A P k gA P k g

M aterials ConsumptionUnit*U s e d

1732

33 3125

UnitCost84.79

250.410.200 .31

Cost

1,441.438,013 .12

66.6038.75

9,559.90 U S D

U S D /BBL

0.663.680 .030 .02

D escriptionNew Mud Bu i l tVolume Transferred Out to 26"Total Co st

V o l u m e t Breakd o wnBBL

21751905

Cost9,559.90

-8,382.001,177.90

USD/BBL4.40

-4.40

Cost per meter drilled:Cost per barrel formation drilled:

14.54 USD5.83 USD


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26 " INTERVAL SUMMARY (201 - 382 M )M U D TYPE - SPUD M U D

Mud Weight:Plastic Viscosity:Yield Point:pH :API Fluid Loss:

P R O P E R T I E S9.0 - 9.3 p p g6 -1 1 cps2 3 -45 l b s / 1 0 0 ft29 . 3 - 1 0 . 57.0 - 9.5 c c

Section Length Drilled:Formation Volum e Drilled: 185 m399 b b l

M aterial

BartteBentoniteLimeLimeSoda As hPolysalInterval M aterial Cost:

UnitSizeMTMTA P k g

20 kgA P k g25 kg

M aterials ConsumptionUnitsUsed227467516593

UnitCost84.79250.410.204.060.3121.24

Cost

169.586.761.0793.4020.3051 .151,975.32

9,070.82 U S D

U S D /BBL0.103.850.050.010.031.13

D escriptionNew M u d BuiltVolu me Transferred InTotal Cast

Volumes BreakdownBBL17541905

Cost9,070.828,382.0017,452.82

USD/BBL5.174.40

Cost pe r meter drilled:Cost pe r barrel formation drilled: 94.34 U S D43.80 U S D


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16 " INTERVAL SUMMARY (385 - 1587 M)MUD TYPE - NOVADRIL

Mu d W e igh t :Plastic Viscosity:Yield Point:Gels lOsec/ lOmin6/3 RPM Values:HTHP Fluid Loss:Electrical Stabil ityChlorides:Pom:PAO/Water Rat io

PROPERTIES10.1 -11.6ppg20-31 cps16-28lb/100ft2: 10-18/16-2810-17/9-163.0-5.8 ml

: 700-980144-152kmg/l0.9 - 2.4 ml H2SO470/30 - 75/25

Section Length Drilled:Formation Volume Drilled:

1342 m1095 bbl

Material

BariteNovasolNovamulNovamodSW AVG69CaCI2 BrineCaCI2LimeLimeXCD - PolymerBentonlteInterval M aterial Cost:

UnitSizeMTBBL

197 kg187 kg218 kg5 0 1 bBBLA P k gA P k g20 kg25 kg25 kg

M aterials ConsumptionUnitsUsed21 21540

3 511545122260043002

1972

UnitCost84.79

307.46758.22816.34827.3844.4329.850 .300.204.0651.24

3.19

Cost

17,975.48473.488.4026.537.708,979.744,136.901,999.353,641.70780.00860.008.12973.56

229.90539,610.85 USD

USD/BBL8.51224.0812.564.251.960.951.720.370.410.000.460.11

D escriptionNew Mud BuiltVolume Transferred InVolume Transferred O ut to 12.25"Total Cost

Volumes BreakdownBBL211395 72212

Cost539,610.85227.344.92-551,739.16215,216.61

U S D / B B L255.38237.56-249.43

Cost per meter drilled:Cost per barrel formation drilled: 160.3701 USD196.5269 USD


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Section Length Drilled:Formation Volume Drilled:

1 2 -1 /4 " IN TER VA L S U M M A R Y ( 15 8 7 - 3911 M)M U D TYPE - N O V A D R I L

PROPERTIESMud Weight:Plastic Viscosity:Yield Point:Gels lOsec/lOmln:6/3 RPM Values:HTHP Fluid Loss:Electrical Stability:Chlorides:Pom:PAO/Water Ratio:

1 3 . 0 - 14.65 ppg31 - 4 0 cps16-31 lb/100 ft21219/21 -3510-17 /9-152.6 - 5.4 ml460-1800141 -185kmg/l0.6 - 3.0 ml H2SO473/27 - 80/20

2324 m1111 bbl

Material

BariteNovasolNovamulNovamodSWAVG69CaCI2 BrineMica FineBorrewell CLimeLimeXCD - PolymerGeltone IIIn t erval M at erial Co st:

UnitSizeMTBBL

197 kg187 kg21 8 kg501bBBL25 kg25 kgAPkg20 kg25 kg

kg

M at erials C o n su m p t io nU nitsU s e d

6121226

391026230

126

5 6 0 0162

31700

UnitCost

84.79307 .46758.22816 . 34827.38

44,4329.8511.411 1 . 5 50.204 . 06

243 . 394 . 09

Cost

51 .891 .48376.945.96

29 . 570 . 588,163.401,654.76

266.586,865.50136.9269 . 30

1,120.00657.727 3 0 . 1 7

6,953.00

4 8 5 , 0 2 5 . 3 7 USD

U S D /BBL

22.55163.82

12.853 . 550.720 . 1 22.980 . 0 60 . 0 30.490.290 . 3 23 . 0 2

D esc rip t ionGunk PHISacr i f ic ia l Spac erNew Mud Bu i l tVo l um e T rans fe r red InVolume Transferred Out to 8.5"Total Cost

V o l u m e s B r e a k d o w nBBL5041

2 3 0 122123499

Cost6,976.10913 .29

477.205.285 5 1 . 7 3 9 . 1 6

-797,772.00239,061.83

USD/BBL139 . 5222.28207 . 39249.43

-228.00

Cost per meter drilled:Cost per barrel formation drilled:

102.87 USD215.22 USD


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Section L ength Drilled:Formation Volume Drilled:

8 - 1 /2 " I N TER VA L S U M M A R Y ( 3 91 1 - 4 0 9 0 M )M U D TYPE - N O V A D R I L

Mud W e ight :Plastic Viscosity:Yield Point:Gels lOsec/lOmin6/3 RPM Values:HTHP Fluid Loss:Electrical Stability:Chlorides:Pom:PAO/Water Ratio :

P R O P E R T I E S14.75 - 14 . 0 p p g37 - 49 cp s1 2 - 2 8 l b / 1 0 0 f t 211 - 28 / 24 - 428-20/7-182.8 - 4.8 ml8 8 0 -2 0001 3 9 - 1 7 4 k m g / l0.8 - 3 .8 ml H2SO475/25 - 80/20

179 m40.8 bbl

M aterial

BariteNovasolNovamu lNo v a m o dSWAV G 6 9V G 6 9CaCI2Borrewell CLimeXCD - PolymerA 3 0 2A3O7TA 1 3 0Interval M aterial Cost:

UnitSizeMTBBL197 kg187 kg21 8 kg

5 0 1 b25 kgAFOS kg25 kg20 kg25 kg208 Itr208 Itr20 8 rtr

M aterials ConsumptionUnitsUsed14229330185395116502240241101

UnitCost84.79307.46758.22816.34827.3844.4345.560.3011.554.06243.391,991.101,201.501,097.56

Cost

1Z040 .1S90,085.782Z746.6014,694.124,136.901,732.77Z 323.56495.0023.10974.405,841.361,991.101Z 015 . 0 01,097.56

170.197.43 U SD

U S D /BBL20.00149.6437.7924.416.87

2.883.860.820.041.629.703.3119.961.82

D escriptionNew M u d BuiltVolum e Transferred InVolume Transferred Out to A-7Total Cost

Volumes BreakdownBBL60 234993685

Cost149,252.41797,772.00-850,977.0596.047.36

USD/BBL247.93228.00-230.93

Cost pe r meter drilled:Cost per barrel formation drilled: 536.58 U SD2354.10 U SD


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FINAL WELL REPORT 2/11-10 S (T2)4.3.1 FMT RESULTS

TestNo

134567810121517181819

DepthMDBRT

3915.93920.83925393739483955.93966.93983.9399939833953.93919.93919.93953.9

DepthTVDSS

2784.627832785.32796.42802.628072813.22822.42830.4L 2821.82805.92782.42782.42805.9

HydrostaticPressurepsig6858.66858.76863.66886.46899.76909.669246945.46962.46928.26872.86847.2

FormationPressurepsig-6666.66670.86689.36703.96740.36767.2---6718.56667.2

Remarks

Tight, abandonedGoodGoodGoodGoodGoodGoodTightTightAbandonedGoodGood10 litretank(mud/oil)4 litre tank (oil)


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Formation W ater Analysis

Sodium (mg/1)Potassium (mg/1)Calcium (mg/1)Magnesium (mg/1)Strontium (mg/1)Barium (mg/1)Iron (mg/1)Chloride (mg/1)Sulphate (mg/1)

2/11-10 S27,3001733,47327827242512.5

40,5005

2/11A-6ST126,9001581,970394284409


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Th e flow distribution from the well is also complicated by the possibility of flow behindcasing. Poor cement jobs of the 5" and 7" liners are suspected. The temperature logdoes not indicate significant flow behind casing or indicate that the source of the wateris from deeper formations.

mud typical well cost

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