Mahari - 1 Drilling Program

Maharvi – 1 Drilling Drilling Program Program

SECTION

P S LAN

1

1

UMMARY


1) Executive Summary

MAHARVI – 1 is an exploratory well in the Maharvi Concession. The objective of this well is to test the SaltRange Formation / Khewra Sandstone with the well to be drilled to a Target Depth of 7,300ft-RT or 200 ft inside “Basement” (whichever is shallower) shallower) Spudded with the 12¼′ ′ bit, the well will be drilled to ± 1917ft-RT in the first hole section. This section will be cased with 9⅝′ ′ casing and cemented to the surface. After the casing/cementing job, 11′ ′ x 9⅝′ ′ 5K SOW wellhead will be installed. The final phase will be drilled with 8½′ ′ hole to the T.D at 7,300ft-RT. 7,300ft-RT. This secti section on will be drilled to test the potent potential ial of Salt Range Formation Formation / Khewr Khewraa Sands Sandstone tone and will be logged as per the logging program. Decision to run 7′ ′ casing will be based on the E-log results, open hole testing and hydrocarbon shows. 8½′ ′ hole will be cased with 7′ ′ casing followed by cementation job to the surface. After cementing 7′ ′ casing hanger will be landed inside 9⅝′ ′ Casing Head Housing & 11′ ′ 5K x 11′ ′ 5K Tubing spool will be installed. After running 7′ ′ casing, completion will be run, X-mass tree installed and pressure tested. The well will then be perforated and tested as per program. In the event well has to be abandoned, appropriate abandonment procedure will be set in place as per the guidelines in the Plug and Abandonment section of this Program. The well will be drilled and completed so that oil & gas production may commence as soon as possible.

2


SECTION

W S ELL

2

YNOPSIS

3


2) WELL SYNOPSIS WELL

MAHARVI – 1

CLASSIFICATION

Exploratory

LOCATION

Line 2007 - MRV - 07, SP 1574

CO-ORDINATES

Latitude 29° 51' 32.9817" N Longitude 72° 55' 55.7589" E

ELEVATION

RT 506 ft. (AMSL) GL 476 ft. (AMSL)

EASTING NORTHING

3219437.00 E 632898.90 N

CONCESSION AREA

Maharvi E.L.

PROSPECT TYPE

Tilted Fault block

REFERENCE SYSTEM

Everest 1830 (Pakistan) Ellipsoid. Lambert Projection – India Zone I

PROGNOSED T.D

7300 ft RT (6794 ft SS) or 200 ft inside “Basement” (whichever is shallower)

OBJECTIVE

SaltRange Formation / Khewra Sandstone.

AREAL CLOSURE VERTICAL CLOSURE

4895 Acres 18317Acres 100 ft

RIG OUTFIT TO BE DEPLOYED

Global Drilling GD-1.

COMPLETION OF DRILLING

± 20 Days after spud in (excluding 7” Casing & Cmt) OPII Drilling Department

RESPONSIBILITY OF EXECUTION

4


SECTION

3

GEOLOGY

5


3.1) PROGNOSED SECTION MAHARVI BLOCK

MAHARVI - 1

PROGNOSED SECTION LAT : 29° 51' 32.9817" N LONG :72° 55' 55.7589" E

E G A

N O I T A M R O F

E N E G O E N

S K I ' ) L 7 A 8 8 1 W I + S (

SAKESAR +

EOCENE

NAMMAL (167')

E- JURASSIC

DATTA(128')

N A I M R E P

Y G O L O H T I L

) N I T ( H R T T P E E E D F

G N I S A C

T R T F 7 1 9 1 @ G N I S A C " 8 / 5 9

1000

1917' 2084'

S

2212'

9 - 10

WARCHHA

3000 3154'

DANDOT 3380' 3426' S

(262')

3688'

4000 KUSSAK + KHEWRA (1149')

P

4837'

) ' 5 6 1 2 ( E G N A R T L A S

BASEMENT (298'+)

DOMINANTLY LIMESTONE WITH THIN BEDS OF CLAYSTONE. DOMINANTLY SANDSTONE WITH CLAYSTONE CLAYSTONE WITH INTERCLATION OF SANDSTONE

2661'

(493')

REMARKS

DOMINANTLY SANDSTONE WITH INTERCALATION OF CLAYSTONE.

2000

JUTANA

PRECAMBRIAN

R G C H B

(449')

TOBRA(46')

N A I R B M A C A R F N I

E G T ) N I N I H G D L G G P U I E G R O M E P ( I W L W

SARDHAI

(226')

N A I R B M A C

RT: 506 FT GL: 476 FT

5000

D E R I U Q E R F D I T N O U T R D E E B L O L T I R G D N E I B S A O C T " E 7 L L O A H N " O I 2 T / 1 - P 8 O

DOMINANTLY SANDSTONE WITH INTERCALATION OF CLAYSTONE. DOMINANTLY SANDSTONE WITH CLAYSTONE

P R G S - R T D G - H C S , H S B - G L N F S L N M - C L L L D D L

SANDSTONE WITH THIN BEDS OF CLAYSTONE.

PREDOMINANTLY DOLOMITE

9 - 10 SANDSTONE WITH INTERCALATION OF LIMESTONE, THIN BEDS OF SILTSTONE AND DOLOMITE.

v v v v v v v v v v v v v v v v v v

D E S U E B O T D U M D E T A R U T A S T L A S

P

v v v v v v v v v v v v v v v v v v v v v v v v v v v

6000

v v v v v v v v v v v v v v v v v v

70007002'

v v v v v v v v v X

X X X X

X

X X X X X X X X X X

X X X X X

X X X X X X X X X X

X X X X X

X X X X

X

X X X X X

DOMINANTLY EVAPORITES (DOLOMITE,ANHYDRITE AND SALT) WITH THIN BEDS OF CLAY AND SANDSTONE.

P

X X X X

IGNEOUS BASEMENT.

TD. 7,300 FT RT (6794 FT SS ) NOTE : TD WILL BE 7300 FT RT OR 200 FT INSIDE BASEMENT ( WHICHEVER IS SHALLOWER ) LEGEND SHALE

V V V V V V V V ANHYDRITE

SILTSTONE

SANDSTONE

LIMESTONE

DOLOMITE

CLAYSTONE

X X X

P

SALT

6

X X X

X X X

X X

X IGNEOUS

PRIMARY OBJECTIVE

S

SECONDARY OBJECTIVE


3.2) PROGNOSIS SUMMARY RT: GL:

506 ft (AMSL) 476 ft (AMSL) Age

Formation

Top - RT (Ft)

Top - SS (Ft)

Thickness (Ft)

Surface

+476

+1887

NEOGENE

SIWALIKS

EOCENE

SAKESAR + NAMMAL

1917

1411

167

E.JURASSIC

DATTA

2084

1578

128

SARDHAI

2212

1706

449

2661

2155

493

3154

2648

226

3380

2874

46

3426

2920

262

3688

3182

1149

4837

4331

2165

7002

6496

298+

7300

6794

WARCHHA PERMIAN

DANDOT TOBRA JUTANA

CAMBRIAN

INFRA CAMBRIAN PRE CAMBRIAN

KUSSAK + KHEWRA SALT RANGE BASEMENT TD

NOTE: T.D. will be 7300 ft RT or 200 ft inside “Basement” (whichever is shallower).

7


3.3) FORMATION CHARACTERISTICS 3.3.1) RECENT – SIWALIKS : ( Surface – 1917 ft RT ) Recent: ( Surface – 830 ft ) The Lithology consists dominantly of loose Sand with Clay. 

Rawalpindi Group: ( 830 – 1917 ft RT )

Lithology The Lithology typically consists of red Claystone with Sandstone. At the base which is overlain by thick Sandstone and Claystone with minor Limestone. Rawalpindi group is anticipated at 830 ft. The thickness of the Limestone encountered at the Top of this group is 50 m at Marot # 1 and 20 m at Bahawalpur East # 1. 

Sandstone:

Light brown, clear, white, pale yellow, fine to medium grained, i/p coarse grained, angular to subangular, unconsolidated to consolidated, i/p sorted, calcareous cement, micaceous. 

Claystone:

Medium to light brown, grey, soft, swell, calcareous.. 

Siltstone:

Reddish brown, buff, greenish grey, calcareous cement. 

Limestone:

Off white, light grey, moderately hard, microcrystalline.

SAKESAR AND NAMMAL FORMATION : ( 1917 – 2084 ft RT )

3.3.2) SAKESAR FORMATION: Lithology

8


At type locality the formation consists dominantly of Limestone with subordinate Marl. The Limestone is cream coloured to light grey, nodular, usually massive with considerable development of Chert in the upper part. The Marl is cream coloured to light grey. At Bahawalpur East #1 and Marot #1 the lithology encountered is as follows: 

Limestone:

White, off white, yellowish brown, occasionally brown, microcrystalline, argillaceous, moderately hard to hard, traces fossils, Packstone. 

chalky,

Clay stone:

Light brown, green, buff, bluish grey, i/p grey, sticky, firm, amorphous, blocky, silty, calcareous.. 

Marl:

Light grey, moderately hard..

3.3.3) NAMMAL FORMATION: Lithology At type locality the formation consists alternation of Shale, Marl and Limestone. The Shale is grey to olive green, while the Limestone and Marl are light grey to bluish grey. The Limestone is argillaceous in places. The Lower part of the formation is composed of bluish grey Marl with subordinate interbedded calcareous Shale and minor Limestone. The upper part consists of bluish grey to dark grey Limestone with intercalation of Marl and Shale. At Bahawalpur East # 1 and Marot #1 the lithology encountered is as follows : 

Claystone:

Dark grey, green, light grey, olive green, soft, traces pyrite, calcareous, non swell.. 

Marl:

Off white, brown, soft, sticky. 

Siltstone:

Grey, off white, moderately hard, calcareous, argillaceous, mic..

Contact The Upper contact with Sakessar Limestone is transitional..

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EARLY JURASSIC 3.3.4) DATTA FORMATION: (2084 – 2212 ft RT ) Lithology At type locality the formation is mainly of continental origin and consist of varigated (red, maroon, grey, green and white) Sandstone, Shale, Siltstone and Mudstone with irregularly distributed calcareous, dolomitic, carbonaceous, ferruginous glass Sand and fireclay horizons. Fireclay is normally present in the Lower part while the upper part includes a thick bed of maroon Shale. At Bahawalpur East # 1 and Marot #1 the lithology encountered is as follows : 

Limestone:

Grey, off white, clear, fine to medium grained, angular to subangular, i/p subrounded, sorted, lig streaks, calcareous cement. 

Claystone / Shale:

Reddish brown, dark grey, chocolate brown, soft to hard, calcareous, silty, sticky, i/p amorphous, (org). 

Siltstone:

Grey, moderately hard, calcareous, micaceous..

PERMIAN 3.3.5) SARDHAI FORMATION: (2212 – 2661 ft RT ) Lithology At type locality the formation is composed of bluish and greenish grey Clay, with some minor Sand and Siltstone beds. It also contains some carbonaceous Shale. The Clay predominantly displays Lavender colour. Minor chert and gypsum are found dissiminated in the formation with occasional calcareous beds in the upper part of it.

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At Bahawalpur East #1 Sardhai Formation predominantly composed of Sandstone.. 

Sandstone:

Grey, dark grey, green, occasionally yellow, clear, fine to medium grained, i/p coarse grained, angular to subangular, quartz, calcareous cement, glauconitic, sorted. 

Claystone:

Olive green, grey, firm, calcareous, non swell..

3.3.6) WARCHHA SANDSTONE: (2661 – 3154 ft RT ) Lithology The formation consists of medium grained Sandstone, conglomeratic in places and has interbeds of Shale / Claystone. 

Sandstone:

Clear, translucent, light brown, fine to medium grained, angular to sub rounded, moderately sorted, calcareous cement. At type locality it is red, purple or shows lighter shades of pink, arkosic, the pebble of the unit are mostly of pink colour and of quartzite.. 

Claystone:

Dark brown, dark grey, green, reddish brown, moderately hard to firm, calcareous, nonswell, (pyr), silty..

Contact The Warchha Sandstone conformably overlies the Dandot Formation.

3.3.7) DANDOT FORMATION: (3154 – 3380 ft RT ) Lithology The formation consists of light to dark grey, olive green, yellowish Sandstone with occasional thin pebbly beds and subordinate dark grey and greenish splintery Shales. 

Sandstone: 11


Dark grey, fine grained, angular to subangular, sorted, argillaceous.Boulder Bed: dark grey, Clayey matrix, firm, non calcareous, Sandy.. 

Claystone / Shale:

Dark grey, green, i/p brown, i/p silty, i/p calcareous.The formation has a gradational contact with the underlying Tobra Formation and is terminated in sharp but conformable contact with the overlying Warchha Sandstone.

3.3.8) TOBRA FORMATION: (3380 – 3426 ft RT ) Lithology The formation consists of marine Sandstone, alternating facies of Siltstone and Shale.At Bahawalpur East # 1 and Marot #1 the formation dominantly consists of Sandstone. 

Sandstone:

Dark grey, fine grained, angular to subangular, sorted, argillaceous.Boulder Bed: dark grey, Clayey matrix, firm, non calcareous, Sandy.

CAMBRIAN 3.3.9) JUTANA FORMATION: (3426 – 3688 ft RT ) Lithology The Lower part of the formation consists of light green, hard, massive, partly Sandy Dolomite and the upper part is composed of light green to dirty white massive Dolomite. 

Dolomite:

Light brown, grey, hard, cryptocrystalline, Sandy.The formation is conformably underlain by the Kussak Formation.

KUSSAK AND KHEWRA FORMATION: (3688 – 4837 ft RT ) 3.3.10) KUSSAK FORMATION: Lithology The formation is composed of Sandstone and Siltstone, with minor light grey Dolomite, pink Gypsum lenses may be present near the Top. 

Sandstone: 12


Brown, greenish grey, yellow, clear, i/p light brown, i/p translucent, fine grained, angular to subangular, i/p dol, moderately sorted to sorted, i/p glauconitic, i/p micaceous, i/p argillaceous. 

Siltstone:

Brown, greenish grey, dolomitic, pyrite.parts, slightly to non calcareous, silty in parts, occasionally grades to siltstone, traces of pyrite.

3.3.11) KHEWRA SANDSTONE: Lithology

The formation consists predominantly of purple to brown, yellowish brown, fine grained Sandstone and Siltstone. The Lower most part of the formation is red, flaggy shale with minor Siltstone. 

Sandstone:

Purple to brown, yellowish brown, fine grained. 

Shale / Claystone:

Reddish brown, non calcareous, non-swell, silty..

Siltstone: Reddish brown, off white, firm to hard, i/p dolomitic.

INFRA CAMBRIAN 3.3.11) SALT RANGE FORMATION: (4837 – 7002 ft RT ) Lithology The Lower part of SaltRange Formation is mainly composed of Marl with Salt, Sandstone and Claystone while the beds of Dolomite, Anhydrite, Limestone, Siltstone and Shale are the constituents of the Upper part. 

Dolomite:

White, creamy, grey, off white, i/p green, i/p light grey, i/p light brown, massive, hard, i/p moderately hard to hard, blocky, microcrystalline, argillaceous, chalky, dense, i/p suc,i/p calc cmt, loc vuggy. 13




Limestone:

Light brown to brown, off white, grey, i/p light grey, firm to moderately hard, argillaceous, microcrystalline, stromatolitic filaments, dolomitic, Mudstone. 

Claystone:

Off white, grey, reddish brown, bluish grey, i/p light grey, i/p green, i/p dark brown, mic, soft to moderately hard, i/p sticky, non-swell, silty, calcareous. 

Sandstone:

Brown, green, reddish brown, dark brown, i/p white to off white, fine to coarse grained, angular to subrounded, micaceous, sorted, calcareous to non calcareous cement, silty, brecciated, with dolomitic streaks, ferru, lam.



Siltstone:

White, off white, dark brown to red, dark grey, friable to moderately hard, ferru, crm, i/p oolitic, moderately calcareous to calcareous cement. 

Marl:

Grey, green, i/p red, dolomitic 

Anhydrite:

White, off white, green, soft to firm, i/p moderately hard, i/p amorphous, chalky, occasionally Siltstone with few Anhydrite, Dolomite beds (Breccia ), i/p lam. 

Salt:

Clear, occasionally translucent, i/p pink, hard to moderately hard. 

Shale:

Dark grey, black, firm, crm, non calcareous, lam, (org).

PRE CAMBRIAN 3.3.12) BASEMENT: (7002 – 7300+ ft RT ) Lithology These oldest rocks are composed of sedimentary, metasedimentary, metamorphic and igneous complexes. The lithology is composed of dark coloured and hard but more importantly fractured rock. 14


At Bahawalpur East #1 and Marot # 1 the characteristics of the formation are as follows: 

Basement:

Black, dark green, hard, fractured, calc veins, chlorite, pyrite, metamorphosed basic Igneous rock, Dolerite.

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4 DRILLING & CASING SECTION

16


4.1) Planned Well Schematic

9⅝ 16

Top of cement

Line Pipe Conductor @ 60 - 80 ft

12¼

Hole ± 1,917 ft

9⅝ Casing 47 PPF, L-80, BTC, Shoe @ ± 1,917 ft Top of 7 Liner @ ± 7,300 ft, ± 300 ft Liner Lap

8½

Hole ± 9,709 ft

7 29 p pf T PCQ pi n X casing Shoe @ ± 7,300 ft, 8½

17

Hole ± 7,300 ft

Box

Maharvi – 1 Drilling Program

4.2) Drilling Montage

18


4.3) GENERAL DRILLING INSTRUCTIONS 

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

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













Hold pre-spud meeting Prior to spud in, ensure that the conductor is correctly aligned & centered below the rig rotary table to prevent offset casing wear. Maintain at least 500 bbls of 12 ppg (appropriate kill mud) in reserve at all times commencing from spud. Maintain hole verticality as straight as possible. If necessary ream hole section repeatedly to reduce angle. Survey frequency should be increased if hole deviation becomes a problem. Time spent on drilling with low weights and reaming to reduce angle would prevent problems with casing wear in later stages. All casing strings must be hung in tension to reduce the effect of helical buckling on the casing. The slips should be set with ± 70% of casing hanging weight in mud. Maximum internal test pressure to be applied to any casing string must not exceed 65% of the casing burst rating taking into consideration the fluids inside and outside the casing string. Maximum external test pressure to be applied to any casing string must not exceed 75% of the rated collapse pressure. These ratings can only be increased after specific instructions received from head office. Drill pipe-casing protector must be used during drilling 8½′ ′ hole section. At no time should drill pipe fitted with protector be allowed to enter into open hole. Extreme care should be taken at all times while tripping. Swab/surge pressures can cause serious problems, especially when a delicate balance between losses and inflows exist. Consequently during critical conditions, swab/surge pressure, pulling/running speeds must be determined and used as a guide in these situations. Regular well control drills should be carried out from below the 9⅝ casing shoe. These drills should be noted in the IADC drilling reports & proper record maintained at the rigsite.

During all long string cement jobs, every precaution must be taken to prevent cement from hardening in the wellhead sections. Immediately after displacing cement, the wellhead sections must be thoroughly flushed out to remove any excess cement displaced or channeled to the surface. SCR should be recorded as per directions in section 7.1. Work instructions should be issued in written form to drilling contractor and other service personnel. A proper record to be maintained at the rig site of such documents.

It would be appreciated if good drilling practices are followed with special emphasis on safety measures.

20


4.4) 12 ¼

HOLE (SURFACE TO ± 1,917 ft)

4.4.1) SECTION OBJECTIVE The main objective of the 12 ¼′ ′ section is to set a competent casing string to provide well control for the continuation of the drilling to the next casing seat. The other objective is to isolate surface aquifers and seal off the loose / top sediments of Siwaliks.

4.4.2) DRILLING 12 ¼ 













HOLE

Carry out full inspection of rig in accordance with the checklist available with the Company Man and rectify all shortfalls. Check that the conductor pipe is centralized. Prepare spud mud. Install cellar-jetting system. Before spud in of the well check entire mud hook up. Nipple up the bell nipple and flow line. Function test rig components & pressure test H.P lines at 3500 psi. M/u and rack back stands of DC’s & 5” HWDP’s required for the BHA, & around 75 stands of 5” DP’s in derrick. Arrange pre-spud meeting to be chaired by Senior OPII representative. All the aspects of the well operations and materials to be thoroughly discussed and recorded.



Spud in well, drill initial 100 ft with low rpm and flow rate.

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Drill 12 ¼′ ′ hole down to ± 1,917′ (9⅝′ ′ casing shoe depth).



Drill hole with lightweight on bit to ensure vertical hole.

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Circulate out Hi-Vis pills to ensure hole cleaning as required.



Take deviation survey after every 250 condition.

interval and on bit change depending upon hole



At the Section T.D. sweep hole with Hi-Vis pill and spot 20 bbls Hi-Vis pill at bottom.



POOH for casing.

21

Maharvi – 1 Drilling Program 

Rig up and run 9⅝′ ′ casing. Carry out cement job as per program. Complete work on wellhead and pressure test all pressure control equipment.

4.4.3) INSTRUCTIONS WHILE DRILLING 12¼ 

HOLE

Keep the mud rheology and pumping rate to effectively lift the cuttings to surface.

Continuously run solids removal equipment in order to effectively control mud rheology including mud weight in order to minimize loading of mud with solids and to minimize possibilities of losses, cavings & washouts. 

4.4.4) RUNNING 9⅝

CASING



R/UP to run casing and hold pre job safety meeting.



Run 9⅝′ ′ casing.



Carry out cement job as per program.

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Cut conductor casing.



If needed, carry out top cement job so that the wellhead area is properly anchored and sealed.

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Wait on cement 06 Hrs.



If the cement does not appear on surface, conduct Top Cement Job.

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Cut 9⅝′ ′ casing. Install & weld wellhead and pressure test weldment at ±1000 psi.

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

N/UP, function and pressure test 13⅝′ ′ BOP stack. Install wear bushing.

4.4.5) INSTRUCTIONS FOR 9⅝ 





CASING JOB

Prior running in casing, condition mud and circulate till shale shakers are free from cuttings. Prior running in casing drift and visually inspect each joint on rack for any damaged threads. Measure casing on rack, make up float shoe and install stop collars on the rack. Thread-lock shoe with first casing joint. 22




Fill up casing string with mud after every 2 to 3 joints. Monitor and record hook load before and after filling casing with mud. While running in casing avoid shock load to casing string and cautiously land the string in slips.



Adjust casing tally prior to running in hole to av oid coupling at casing cutting point.



Slack 2 – 5T weight on sting in adapter.



Circulate through stinger to check any leakage from 9⅝′ ′ x 5′ ′ annulus prior to start pumping cement slurry.



Chain down casing and drill pipes to avoid floating action.



Install centralizers as per casing program.



Check wellhead and 7′ ′ casing hanger profile for any damage etc. prior to installation.





After WOC cut and dress 9⅝′ ′ casing joint. Weld and pressure test weldment of 9⅝′ ′ x 5K casing head housing at 1000 psi. Complete work on wellhead, N/UP BOP and all pressure control equipment. Pressure test as per details mentioned in Section 8.



Time spent on wellhead should be reduced by efficient planning and preparation.

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Install wear bushing prior to RIH with 8½′ ′ bit.

23


4.4.6) WH & BOP STACK– AFTER PHASE – 1

Flow Riser

Annular BOP 5K

Upper Pipe Ram 10K

Blind Ram 10K

Lower Pipe Ram 10K

Mud Cross 13⅝

10K Top x 13⅝

10K Btm

Cross over Spool 13⅝

10K Top x 11

5K Btm

Casing Head Assembly 11

5K Top x 9⅝

SOW Btm

24


4.5) 8½

HOLE (± 1,976 ft TO ± 7,300 ft)

4.5.1) SECTION OBJECTIVE The objective of this section is to case off the SaltRange Formation / Khewra Sandstone, which will enable to control the properties of mud system in the reservoir section. Well directionality is critical in this section and all surveys will be plotted and verified to ensure the well bore positional uncertainty places it in the target area.

4.5.2) DRILLING 8½

HOLE

RIH with 8½′ ′ PDC bit with stabilized BHA to top of 9⅝ ′ ′ casing shoe and test casing at 1500 Psi (SAP). 



Drill out cement/shoe and cement in rat hole.

Pump ± 20 bbls of water ahead and displace spud mud with KCl PHPA polymer mud. 

Drill out new formation to ± 1,986 ft. Pull back to shoe, rig up cementing unit for formation integrity test (FIT). Make sure that mud is properly homogenized before conducting FIT. 



Conduct FIT at 12ppg EMW.



Apply lower drilling parameters while stabilizers are inside the casing.

Pump Hi-Vis pills to ensure hole cleaning after drilling every 2-3 stands or as required. 

Conduct deviation survey after every 250 / 500 ft and on bit change depending upon hole condition. 



At section T.D. ± 7,300 ft sweep hole with a Hi-Vis pill.



Conditioning trip to be done with same BHA used in drilling.



Spot 30 bbls Hi-Vis pill at bottom prior to POOH for logging.



POOH.



Conduct logs as per program. 25


Retrieve wear bushing & change one set of D.P. ram with 7′ ′ casing ram.



R / u to run 7′ ′ casing.

26


4.5.3) INSTRUCTIONS FOR DRILLING 8½ HOLE 

Keep the mud rheology and pumping rate to effectively lift the cuttings to surface.



Prior using PDC Bit ensure the hole is clean from any steel junk/debris etc.

Due to high rate of penetration while drilling with PDC Bit, hole cleaning is of prime importance. Therefore, observe and ream hole on connections and sweep hole with Hi-Vis after drilling every 2 to 3 stands. 

Continuously run solids control equipment in order to effectively control mud rheology. 

Monitor and record upward and downward over pull / drags while drilling this hole section. 

4.5.4) RUNNING 7

CASING



Retrieve wear bushing from 9⅝′ ′ casing head housing.



Run casing to section T.D. and circulate. Casing not to be rotated.



Perform cement job as per cementing program.



Flush BOP’s, wellhead with water by opening side outlet valve on CHH.



N / d bell nipple and lift BOP stack.



Set slip and seal assembly as per instructions of wellhead engineer.



Cut and dress 7′ ′ casing. Use cold cutter if available.



Install and test tubing spool as per wellhead manufacturer’s specifications.

N / u BOP stack, change casing rams to DP rams and test. (Test pressure rating attached) 

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N / u bell nipple and the flow line. Install wear bushing in 11′ ′ tubing spool bowl.

.

27


4.5.5) INSTRUCTIONS FOR 7

CASING JOB

Prior to running in, drift casing and visually inspect each joint on rack for any damaged threads. Measure casing on rack, make up Float Shoe, Float collar and stop collars on the rack. 

Thread lock shoe, float collar and bottom three joints. Fill up the casing with mud after every 4 to 5 joints. Monitor and record hook load before and after filling casing with mud. 



Calculate volumetric efficiency of mud pumps to be used for displacement.

While running in casing avoid shock load to casing string and cautiously land the string in slips. 

Minimize rat hole to avoid down hole problems. For this adjust casing tally prior to running in hole. 



Install centralizers as per casing program.

28


4.5.6) WH & BOP STACK – UP AFTER PHASE – 2

29


Flow Riser

Annular BOP 5K

Upper Pipe Ram 10K

Blind Ram 10K

Lower Pipe Ram 10K

Mud Cross 13⅝

10K Top x 13⅝

10K Btm

DSA 11” 5K x 13⅝

10K

Tubing Spool 11” 5K Top x 11 5K Btm W/- NX Btm. Prep for 7 csg.

Casing Head Assembly 11

5K Top x 9⅝

SOW Btm 9⅝ 7

30

Casing Casing


4.7) BIT PROGRAMME

BIT SIZE

12¼

DEPTH INTERVAL

DESCRIPTION OF BITS

QTY.

NOZZLE

Surf. to 1,917 ft

Mill tooth IADC 117 & 217

2

1 x 14/32′ ′ + 3 x 18/32′ ′ 6 x 12/32′ ′

PDC: 7 Bladed 2

8½

1,917 ft to 7,300 ft

PDC: 6 Bladed TCI: IADC: 517

6

For clean out & Drilling Optional.

Milled Tooth IADC: 517/537 IADC: 117/127

31

5 x 12/32′ ′

2

3 x 14/32 ′ ′

2

3 x 14/32′ ′ & Open


4.8) DRILLING PARAMETERS

Hole size

Flow rate (GPM)

WOB

RPM

(TCI)

1–5

60-90

200-400

100 – 1400

8½

(PDC)

5 – 10

70-100

400 – 500

1500 – 2500

8½

(TCI)

5 – 10

70-100

450 – 550

1500 – 2500

12 ¼

32

SPP (PSI)


33


4.9) DRILL PIPES

34


OD

ID

Capac i Wt./ft. t ( y l b ( s GRAD b . E b / l f / t f . t ) . )

Metallic Disp lace men t (bbl /ft.)

35

Torsio n Torsio Tensil a Tensil n e l e a Y l B i Y C u e i o r l e ll s d l a t d p S s P t S e r r t P e e r r s n e e s g n s u t g s r h t u e h r ( e ( f ( ( P t l P s . b s i l s i . b ) . ) s ) )


5

3 ½

4.276

E-75 X-95 G-105 S-135

2.764

E- 75 X- 95 G- 105 S- 135

19.5

13.30

0.01776

0.0074

0.0071

41, 167 52, 144 57, 633 74, 100

395, 595 501, 087 553, 833 712, 070

9, 962 12, 026 12, 999 15, 672

9, 503 12, 037 13, 304 17, 105

0.0048

18, 551 23, 498 25, 972 33, 392

271, 569 343, 988 380, 197 488, 825

14, 113 17, 877 19, 758 25, 404

13, 17, 19, 24,

36

800 480 320 840


4.10) BOTTOM HOLE ASSEMBLY

Bit sub (with recess)/ NB stab

Drill Collar

String Stab

Drill collar

String Stab

Drill Collar

Cros s over

12¼

1/1

8″ x 2

1

8″ x 5

-

-

-

-

8½

8″ x 1

6½″ NMDC x 1

8″ x 1

6½″ DC x 2

8″ x 1

6½″ x 10

-

-

Bit

37

Drill Coll Jar ar

Drill Colla r

Cros s over

HWD P

8″

8″ x 2

1

5″ x 12

6½″

6½″ x 3

1

5″ x 12


4.11) MUD PARAMETERS Hol e size

Mud Type

Benton 12¼ ite Spud mud

8½

5% KCL – Polyme r Non damagi ng

Gel 10 Cak sec/ W/L e 10m in

Densi ty (ppg.)

VIS

8.6 - 9.2

60-70

-

-

9.0 – 10.0

50-55

4-5/1215

1

PV

YP

PH

%S

% Oil

-

-

-

8.5+

-

-

Less than 5cc

18 - 20

20 – 25

8.5-9.5

Min

0

Note: KCL –Polymer PHPA will be used to drill shale section upto +/4500 ft Mud system will be replaced with salt saturated mud while drilling

38


4.12) HAZARDS SUMMARY

Hole Size

12¼

Interval

Surface - ± 1,976′

Hazards

Loss circulation High ROP – hole pack off

 

Mitigation  

Reactive shales Well Bore Stability – Stuck Drill







Pipe 

8½



±

1,976′ - ± 7,300′



High ROP – hole pack off Missing geological target Hydrocarbon kick/swab kick









39

LCM material Mud rheology ROP high pump rates

–

control

Inhibitive mud system (PHPA) polymer Salt range will be drilled with slat saturated mud Mud Type, Weight, Selection and Maintenance Mud rheology, flow rates and controlled ROP Surveying/ correction run


4.13) CASING PROGRAMME Hole size

Casin Specificati g OD on

Cased Interval

Pressu re Test

Shoe Track

Float Equipment

Centralizers 

12¼

9⅝″

47 PPF, L80, BTC



1,976′ to surface

1500 Psi

2 jts







8½

7″

29 PPF, L-80 TPCQ



7,300′ to surface

3000 Psi

2 jts 



1 SB in 16″ cond. 1 SB x 5 jts 1 SB on shoe jt 3 Rigid inside 9⅝″ csg. 1 SB x 5 jts over coupling 1 SB x coupling in shoe track 1 SB on shoe jt

Note: Final Centralization program will be conveyed by the Head Office at the time of casing

40











Float shoe –1 conventional Float collar- 1 conventional Plugs Top and Bottom 1 each Float shoe –1 conventional Float collar- 1 conventional Plugs Top and Bottom 1 each


4.14) CASING SPECIFICATIONS

CASING OD

BODY INTERNAL YIELD YIELD SPECIFICATION STRENGTH PRESSURE (1000lbs) Psi.

COLLAPSE RESISTANC E Psi.

9⅝

47 lbs/ft L-80 BTC

1086

6870

4760

7

29 lbs/ft L-80 TPCQ

676

8160

7020

41


5 GDO SECTION

42


MAHARVI BLOCK (LOCATION MAP)

GEOLOGICAL DRILLING ORDER

SARAI

MAHARVI - 1 CONCESSION AREA:

MAHARVI E.L.

TYPE OF WELL:

LOCATION:

EXPLORATORY 29° 51' 32.9817" N

CO - ORDINATES :

72° 55' 55.7589" E

SIDHU-01

OGDCL

NANDPUR CHAK12-01

LINE 2007 - MRV - 7, SP 1574

DISTRICT:

BAHAWALNAGAR

PROGNOSED TD.

7300' RT (6794' SS)

PROVINCE:

PUNJAB

ELEVATION:

RT: 5 06 FT (AMSL) GL: 476 FT (AMSL)

DRILLING RIG :

GLOBAL DRILLING

MULTAN

MAHARVI - 1

NANDPUR-01 ALI SHAIB-1

M R O F T A L P B A J B U P

NATIVS

PUNJAB PIRAN PI RANW W AL AL -0-1 01

3 0 7 2-4 2 5 3 5 . 4 1S Q . K M S ZONE - II

KARAMPUR-01

J I T L S U

MGCL

NOOR

R VE I R

CHISHTIAN MANDI

SUTLEJ JUGUWALAOIL SEEPAGE

PAIGE

CHOLISTAN 2972 -4 1927.94 SQ.KMS ZONE - II

BAHAWALPUREAST

G E O L OG I C A L D A T A

(2971-5)

SPUDED ON:

PPL

T E E F N I H T P E D 1

S H T N P O I E T D I S G O N P I T T T N E E S M G E N C I S D A N C A

E M U L O V & E Z I S E L O H 2

1000

3

LITHOL OGY (DESCRIPTION) N O I T A M R O F

Y G O L O H T I L

4

5

S E R O C

8

S ) ' K I 7 L 8 A 8 1 + W ( I S

" 4 / 1 2 1

D E T C E P S X E W + O S H E S V I S T A C G E J & B L I O O

9

10

E M M A R G O R P G N I G G O L

11

12

DRI LLI NG PARAMETERS

N ) BIT G O . N I T I SIZE T F ) R I . T S ) 0 T & ) S O S 0 1 R L P TYPE / N L T I S Q I M F / R O M B G D C 0 L D 0 ( E N 0 3 L I ) 1 / . N s B E b / I R N O . I S L l C S U S C R O K . M E S D B A H ( C S ) 0 ( L T ) S L O N ( 1 I / L P O B M E ) ) S . Y G D G G I P O / T I N S P N U C T P S I I % M O E I P M L N N R P C P E ( . ( S ( O L A C L C G ( E T Y G G ) M L S O T F I P B I ( N N 0 R A L I P ( I % S R 1 C H O D O H R I N D L B P L I E E , S I G E G A L L Y L I L / O M I L K T L I P R R I T I I O A A E V R O R V H L . E Y O O E O R R P C D P P O S C W G F W T F F W R D D

E R U S S E R P C I T A T S O R D Y H L A M R O N

DOMINANTLY SANDSTONE WITH INTERCALATIONOF CLAYSTONE.

T R ' 7 1 9 1

13

R G C H B

MUD HYDRAULICS Y L B M E S S A E L S O E H I N M L O F T O T . O O B N

14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

+ - 5 . 8

-

-

-

30

31

C D " 8 x 5 P + D B W A H T " S . 5 S x 2 + 1 ) s 0 C + 9 D b 9 l " x " O 0 K - 5 " X 1 0 0 8 8 x + 1 6 ( 2 C + D " B 8 A T x S 2 B + N R A + J T " I B 8 " 4 / 1 2 1

D U M D U 0 2 . P " 4 7 9 S / - - - E 1 0 6 T 2 . I 6 8 1 N O T N E B

@ G N I S A C ' ' 8 / 5 9

S P M U P F O E P Y T & O N

D ) . N C U E O ) S R S / E ) T A F Y ) H E T S ( T . C U L I N N N E I E C I ( I H M C V O L / S M N I E E T E / ( L V Z S F Z ( I E Z S E R Z K I A S R O S O E L E R T N U P I N T E T N I P L S J E / J N A D

32

3 3 34 35 36

P 2 H 3 / 0 4 0 1 6 , 1 2 0 3 / F m 2 8 6 1 m H 5 - 1 , 2 H 0 2 x 8 0 / 3 e 1 8 8 l p 1 i r , 2 T 3 x / 8 2 1

37

0 8 0 6

) I S P ( E R U S S E R P E P I P D N A T S

REMARKS/ PRODUCTION TESTING / WRITE UP ) M P G ( T U O P M U P

38 9 3

I S P 0 0 4 1 0 0 1

0 0 4 0 0 2

0 0 5 2 0 0 5 1

) C D P 0 5 5 0 5 4 ( ) I C T 0 0 5 0 0 4 (

40

1917' SAKESAR+

2000

DOMINANTLYLIMESTONEWITH THINBEDS OF CLAYSTONE.

NAMMAL(167')

2084' DOMINANTLYSANDSTONEWITH CLAYSTONE

DATTA(128')

I A H ) ' 9 D 4 R 4 ( A S A H ) H 3 ' C 9 4 R ( A W

2212'

2661'

3000

3154'

S

CLAYSTONEWITH INTERCALATIONOF SANDSTONE

DOMINANTLYSANDSTONEWITH INTERCALATIONOFCLAYSTONE

DANDOT (226') 3380' 3426'

DOMINANTLYSANDSTONEWITHCLAYSTONE

TOBRA(46') SANDSTONEWITHTHINBEDSOF CLAYSTONE.

JUTANA (262')

PREDOMINANTLYDOLOMITE

S

3688'

+ A K R ) ' 9 A W 4 S E 1 1 S ( U H K K

4000

SANDSTONEWITHINTERCALATIONOF LIMESTONE, THINBEDS OF SILTSTONE ANDDOLOMITE.

*

P

4837' 5000

" 2 / 1 8

v v v v v v

) ' 5 6 1 2 ( E G N A R T L A S

6,000

P

*

v v v v v v v v v

DOMINANTLYEVAPORITES (DOLOMITE,ANHYDRITEANDSALT)WITH THINBEDS OF CLAYAND SANDSTONE

T N E + ) M ' 8 E 9 2 S ( A B

E R U S S E R P

C I T A T S O R D Y H

L A M R O N

P R S G - T R D G H - S C , H S B G - N L F L S N M C - L L L D D L

v v v v v v v v v

7,000 7002'

D E T C E P X E E R A S N O I T A C I L P M O C E R U T C U R T S O N

X X X X X X X X X X X

X X X X X X X X X X X

X X X X X

) N O I T A M R O F E G N A R T L A S N I H T I W T L A S T S N I A G A S T U O H S A W (

) s b l ) K 0 5 2 2 - 1 0 0 1 8 ( 5 : ( : 1 C C x D D " " P P 5 2 / / / 1 ) ) 0 s 0 6 b l K 1 5 0 2 7 - ( : 0 I 1 ( C : T I C T

. C . C 5 R 1 G E 5 P M M P Y " 5 5 . U L 2 N 2 5 2 9 5 / . O 1 - - - I M 1 A 1 - 0 0 P 0 5 0 1 N . H / 5 I 2 8 - L 8 T 5 M C 0 . K 9 S % S 4 5 E L

P D + W C H D " " 5 2 x / 1 - 2 6 1 x + 2 O + X B + A T C D S " . 2 S / + 1 C 6 D x M 2 0 N + 1 " 2 R / A 1 - J " 6 2 x / 1 1 + 6 B + A C T D S " . / 2 B 1 . N 6 + x 0 T 1 I B + " B 2 / A 1 - T 8 S . S

P H 0 0 6 1 F H H x e l p i r T x 2

I C T ) " 2 3 / 4 1 x 3 ( ) " m 2 0 m 3 / 0 0 8 0 2 3 1 2 1 - 1 x 0 5 0 5 2 6 , 1 " 2 3 / 2 1 x 6 (

0 5 2 0 0 2

C D P

P IGNEOUS BASEMENT.

X X X X X X

TD. 7300' RT (6794' SS)

NOTE : TD WILL BE 7300 FT RT OR 200 FT INSIDE BASEMENT (WHICHEVER IS SHALLOWER)

LEGEND SHALE

SILTSTONE

SANDSTONE

V V V V V V V V ANHYDRITE

LIMESTONE

DOLOMITE

CLAYSTONE

43

N A T S I A I K D A N P I

MAROT-01

MUD PARAMETERS

N I N E T H O R G I I T U S E A S M E W R R D O P U F S N M D E I F E R O O T U T C S A S M E S M P E R R X R O E E P F T

BAHAWALPUREAS T-01

2495Sq.Kms ZONE=II

2

S N O I T I D N O C L A R U T C U R T S

OPII

MAHARVI 2972-3 1838.60 SQ.KMS ZONE -II

(SCALE: = 1 : 6,000) WELL CONSTRUCTION

NATIVS

ZONE -II

OGDCL

MULTAN SOUTH

3073 -3 2505.18 ZONE -II

NATIVUS

SHAKARGANJ WEST TOLA-01

BAGH SOUTH

X X X

X X X

X X X

X X X

IGNEOUS

SALT

P

PRIMARYOBJECTIVE

S

SECONDARYOBJECTIVE


SECTION

6

CEMENTING

44


6.1) Specifications 9⅝

Casing – 1,976 ft

7

Casing – 7,300 ft



Interval: Surf. – 1,976 ft



Lead Cmt: Surface – 6,400 ft



Open Hole Excess – 150 %



Tail Cmt: 6,400 ft – 7,300 ft



Open Hole Excess: 20%



Cementing Method: Conventional



Lead Slurry: 13.2 ppg.



Tail Slurry: 15.8 ppg.





Cementing Method: Conventional Density – 15.0 ppg

Note: Exact volume of cement slurry (tail and lead) and cement recipe will be advised by the Head Office at the time of job.

45


6.2) ANNULAR VOLUME (bbls / ft)

46


Inner Tubing

Size

Capac ity

3½

4¾

6½

5

7

9 ⅝

8

-

Annulus Capacity OH 12¼

0.1458

-

-

0.1215

-

-

0.0836

0.0558

-

CSG 9⅝

0.0732

-

-

0.0489

0.0322

0.0256

-

-

-

OH 8½

0.0702

-

-

0.0459

0.0291

0.0226

-

-

-

CSG 7

0.0371

0.0252

0.0152

-

-

-

-

-

-

S ECTION 47

7


WELL CONTROL

48


7.1) GENERAL INST INSTRUCTIONS General Instructions to avoid / combat well control situations: 

Record mud weights every 15 / 30 mins as directed.



Monitor well for signs of changing pressures



Record SCR regularly in every shift and specially in the following situations: 1.

Significant change of mud properties

2.

Change of BHA

3.

Change of bit / bit nozzle configuration

4.

After changing mud pump liner – piston sizes

5. Before entering into a potential pay zone and after entering into new formations Before entering a potential high-pressure zone, ensure that the MW is appropriate enough. 

Minimize contamination of mud with foreign elements like drill solids / cement / hydrocarbons. 



Ensure proper hole fill up during tripping through a properly calibrated trip tank.

Ensure integrity of low-pressure mud system to avoid intercommunication / intermittent dilution. 

Maintain reasonable stock of weighting agent (Barite / CaCO3) on location as advised by the Company Man. 



Conduct flow-check at following situations: 1.

During tripping

2.

When at bottom after running in

3.

After entering in cased hole from OH while tripping out.

4.

Before pulling out BHA.

5.

When at surface after pulling out

6.

Observing kick warning signs as mentioned above.

49


7.2) WARNING SIGNS OF A KICK Observe for following changes in well behavior so that a potential kick can be handled promptly and safely: 

Increase in Flow rate



Increase in Pit Volume



Well not static on flow check



Reduced hole fill up volume during tripping out.



Gas cuts



Drilling break



Erratic torque

7.3) SHUT IN PROCEDURES 7.3.1) WHILE DRILLING If a kick is encountered while drilling, follow the procedure outlined below: 1. Stop drilling. 2. Stop rotation. 3. Raise the string so as to bring tool joint above the rotary table. 4. Stop the pump(s). Observe well & conduct flow check. 5. Close the annular preventer and open HCR valve to the hydraulic choke. Keep the choke lined up for hard shut-in (i-e closed position during normal drilling operations) 6. Inform Company Man, Tool pusher and other crew members. 7. Record the following: i.

Shut-in casing pressure at the choke manifold (SICP)

ii.

Shut-in Drill pipe pressure at the standpipe manifold (SIDPP)

iii.

The pit gain Note: Sufficient time must be allowed for the readings to be stabilized before recording. (±30 mins)

50


7.3.2) WHILE TRIPPING If a kick is encountered while tripping, following procedure must be followed: 1. Run down stand to bring tool joint at the rotary table and set slips under it. 2. Install a Fully Opened Safety Valve and close it. Ensure at hand availability of a fully opened safety valve on the rig floor during the entire time of tripping. 3. Close the annular preventer and open HCR to the hydraulic choke. 4. Inform Company Man, Tool pusher and other crew members. 5. Record the following: i. ii. iii.

Shut-in casing pressure at the choke manifold (SICP) Shut-in Drill pipe pressure at the standpipe manifold (SIDPP) The pit gain

Note: Sufficient time must be allowed for the readings to be stabilized before recording. (±30mins)

7.4) KILLING METHOD The underlying principle is to: 



Keep the bottom hole pressure constant and just above formation pressure at all times. Minimize the pressure exerted on the open formations (1st priority), the casing shoe and the BOP

The DRILLER’S METHOD will be employed to combat any kick situation. Following outline procedure shall be adopted: 1.

Shut in the well

2.

Read & record SIDPP, SICP and pit gain.

3.

Brief the crew about the procedure

4. Open the choke and simultaneously start pumping mud (of current weight) at the SCR. 5. Whilst reaching and maintaining the SCR adjust the choke opening until the choke pressure equals the closed-in annulus pressure. Record and keep the choke pressure constant throughout the first circulation.

51

Maharvi – 1 Drilling Program 6. Read standpipe pressure. It should equal the normal pre-kick pump test circulation pressure at the selected pump speed plus the closed-in drill pipe pressure. If the observed standpipe pressure does not agree with the calculated value, consider the observed pressure to be correct. 7. Maintain constant standpipe pressure and pump rate (SCR) whilst the influx is circulated out. 8. When all influx has been circulated out, stop the pump and close in the well to check the closed-in drill pipe and annulus pressures. At the end of the first circulation the closed-in pressures of the annulus and drill pipe should be the same and equal to the initial closed-in drill pipe pressure. The well is controlled but not killed. 9. Once the drilling fluid has been weighed up to the correct density the second circulation can begin. Prepare kill sheet & pumping schedule (Kill sheet format attached in Section 7.5) format and follow through out the second circulation. 10. Start the pump and circulate kill mud at the SCR. Hold casing pressure constant until the kill mud reaches the bit. At the same time monitor DP pressure against the pump schedule. 11. When the kill mud reaches the bit, hold drill pipe pressure constant at Final Circulating Pressure (FCP) until the weighted mud is surfaced. 12. When the kill mud is surfaced shut off the pump, close the well and check pressures. Both pressures should record “zero”. If so open the well and conduct a flow check. If it is not flowing, the well has been killed successfully. If it flows, follow the killing procedure again.

52


7.5) KILL WORK SHEET WELL CONTROL WORK SHEET Date: FORMATION STRENGTH DATA

__________________

CURRENT WELL DATA Well Name

FIT EMW

ppg

(A)

Current Drilling Mud

Initial MAASP ((A) - Current MW) x Shoe TVD x 0.052

Weight

=

ppg

psi P D

MUD PUMP DATA Pump Outout

Casing Shoe Data

Pump 1

Size MD TVD

Pump 2 bbls / stk

bbls / stk

(PL) Dynamic Pressure Losses

30 SPM

SCR

45 SPM

" ft ft

OH Data

60 SPM

Size MD TVD

Pump No. 1 Pump No. 2

" ft ft

C D

PRE-RECORDED VOL DATA LENGTH

CAP

VOLUME

PUMP STROKES

TIME

ft

bbls / ft

bbls

Strokes

Mins

VOLUME PUMP OUT PUT

PUMP STROKES SCR

Drill Pipe

x

HWDP

x

Drill Collars

x

Drill String Volume

DC x OH

x

DP x OH

x

OH Volume

(D)

bbls

Strokes

Mins

(F)

bbls

Strokes

Mins

bbls

Strokes

(E)

DP x CSG.

x

TOTAL ANNULUS VOL.

(F)+(G) = (H)

bbls

Strokes

Mins

TOT WELL SYS VOL.

(D)+(H) = (I)

bbls

Strokes

Mins

(J)

bbls

Strokes

(I)+(J)

bbls

Strokes

(G)

TOT ACTIVE SUR. VOL. TOT ACT. FLUID SYS

KICK DATA SIDPP

SICP

psi

psi

PIT GAIN

bbls

KILL MUD WEIGHT (KMW) Current MW + (SIDPP / TVD x 0.052 )

………… + (………… / ……………. x 0.052) = _________ INITIAL CIRCULATING PRESSURE (ICP)

Dynamic Pressure Losses + SIDPP

………… + ………… = _________

psi

FINAL CIRCULATING PRESSURE (FCP) KMW x Dynamic Losses / Current MW

………… x ………… / ………… = _________

psi

PRESSURE DROP / 100 STKS (PSI PER 100 STKS) (K) = ICP - FCP

……… - ……… = ________

(K) x 100 / (E)

53

…… x 100 / …...…… = _________


PUMP SCHEDULE

Strokes

Pressure (psi)

) i s p ( e r u s s e r P P D

Strokes

54


55


8 PRESSURE TEST SECTION

56


8.1) PRESSURE TEST WELL CONTROL EQUIPMENTS

BOP SIZE

ANNULAR TYPE RATING

RAM TYPE RATING

5M

10 M

13⅝

PRESSURE TEST ANNULAR

RAM

BLIND

CHK / KILL LINE M / F

Low : 300 psi High : 2500 psi






Low-pressure test for 10 min.



High-pressure test for 15 min.



Use test plug to test BOP stack and cup tester for newly installed casing spool, flanges & valves.



Press test casing head housing (through weld test port. 75% of the casing collapse pressure or Well Head Housing rated press which ever is Lower).

57


S ECTION

9

PLUG & ABANDONMENT 58

Mahari - 1 Drilling Program

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