drilling services assam asset welcomes for drilling brief

8/10/2019 Drilling Services Assam Asset Welcomes for Drilling Brief

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OUR VISION

TO BE A WORLD CLASS OIL & GAS

COMPANY,

INTEGRATED IN ENERGY BUSINESS

WITH DOMINANT INDIAN LEADERSHIPAND

GLOBAL PRESENCE.


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OUR GOALOUR GOAL

STRIVE FOR CONTINUALSTRIVE FOR CONTINUAL

IMPROVEMENT IN OURIMPROVEMENT IN OURPRACTICES & PERFORMANCEPRACTICES & PERFORMANCE

WITH ASPIRATIONAL GOALWITH ASPIRATIONAL GOALOF ZERO HARM TO THEOF ZERO HARM TO THE

PEOPLE, SOCIETY &PEOPLE, SOCIETY &

ENVIRONMENTENVIRONMENT


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DRILLING SERVICES at a GlanceDRILLING SERVICES at a Glance

COMMENCED Drilling Operation on: 09.06.1959COMMENCED Drilling Operation on: 09.06.1959 First well in AssamFirst well in Assam DisangmukhDisangmukh--1(1959)1(1959)

Rig NameRig Name-- 3 D 2 , Drilled Depth=3811m3 D 2 , Drilled Depth=3811m

Total No. of Exploratory Wells Drilled (01.04.09)Total No. of Exploratory Wells Drilled (01.04.09) --776776 Total No. of Development Wells Drilled(01.04.09)Total No. of Development Wells Drilled(01.04.09) --842842

Total no of workTotal no of work--over wells(2008over wells(2008--09)09) --135135 Deepest well in Assam: LKWDeepest well in Assam: LKW--351; DD=5113m351; DD=5113m

(07.11.1988)(07.11.1988)

Highest Meterage drilled in a dayHighest Meterage drilled in a day--713m (27.11.1998)713m (27.11.1998)

Total Meterage drilled since inception=4631.640kmTotal Meterage drilled since inception=4631.640km

(EXPL(EXPL--1953825M, DEV1953825M, DEV--2488384m, exp cum dev2488384m, exp cum dev--

184461m, S/Track184461m, S/Track--4970m)4970m)


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WHAT IS A WELL?WHAT IS A WELL?

A COMBINATION OFA COMBINATION OFCONCENTRIC CEMENTEDCONCENTRIC CEMENTEDCASING PIPES AND ACASING PIPES AND A

PRODUCTION TUBING STRINGPRODUCTION TUBING STRINGLOWERED INTO THE EARTH,LOWERED INTO THE EARTH,

AFTER DRLLING A HOLE, FORAFTER DRLLING A HOLE, FORTHE PRODUCTION OF OILTHE PRODUCTION OF OILAND/OR GAS FROMAND/OR GAS FROMSUBSURFACE ROCK STRATA.SUBSURFACE ROCK STRATA.

X MAS TREE (HAVINGX MAS TREE (HAVING

CONTROLLING VALVES)CONTROLLING VALVES)MOUNTED ON TOP ATMOUNTED ON TOP AT

WELLHEAD TO FACILITATEWELLHEAD TO FACILITATEPRODUCTION.PRODUCTION.

20 CASING

CEMENTED

13 3/8 CASING

CEMENTED

9 5/8 CASING

CEMENTED

7 LINER CASING

CEMENTEDPACKER

PRODUCTION

STRING

XMAS

TREE


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TWO TYPES OF WELLTWO TYPES OF WELL

1.1. EXPLORATORY WELLSEXPLORATORY WELLS-- ToTo

physically assess the potential ofphysically assess the potential ofthe reservoir established bythe reservoir established byseismic survey & delineationseismic survey & delineation..

2.2. DEVELOPMENT WELLSDEVELOPMENT WELLS-- ToTo

exploit the hydrocarbons fromexploit the hydrocarbons fromthe proven reservoirsthe proven reservoirs


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PURPOSE OF DRILLINGPURPOSE OF DRILLING

THE AIM OF DRILLING ANTHE AIM OF DRILLING AN

OIL OR GAS WELL IS TOOIL OR GAS WELL IS TO

PROVIDE A CONDUIT FROM APROVIDE A CONDUIT FROM A

RESERVOIR TO THERESERVOIR TO THE

SURFACE.SURFACE.


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ROTARY SYSTEMROTARY SYSTEMINCLUDES ROTARYINCLUDES ROTARY/ TDS SYSTEM & DRAWWORKS/ TDS SYSTEM & DRAWWORKS

BLOCK & TACKLE SYTEMBLOCK & TACKLE SYTEM --CROWNCROWNBLOCK & TRAVELLING BLOCKBLOCK & TRAVELLING BLOCK

CIRCULATING SYSTEMCIRCULATING SYSTEM-- MUDMUDPUMP,MANIFOLD, ROTARY HOSE,PUMP,MANIFOLD, ROTARY HOSE,

DRILL STRING,ANNULUS OF WELLDRILL STRING,ANNULUS OF WELL MUD HANDLING SYSTEMMUD HANDLING SYSTEM --SHALESHALE

SHAKER, DESANDER, DESILTER,SHAKER, DESANDER, DESILTER,

CENTRIFUGE, MUD CLEANER,ETCCENTRIFUGE, MUD CLEANER,ETC

MAIN SYSTEMS OF RIGMAIN SYSTEMS OF RIG


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LAND RIG


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1010


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1111

TOP DRIVE SYSTEM(TDS)


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1212

MUD PUMPS


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WELL DRILLING

OIL

Mud pump

Mud tank

Flow line

SwivelRotary hose

Mud flow

path

Stand

pipe

Kelly


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DRILLING SYSTEMDRILLING SYSTEM

ROTARY

DRILLING

DOWN HOLE

MOTOR


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MWDMWD


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RIG TYPES AND CAPACITIESRIG TYPES AND CAPACITIES

TYPETYPE--II--3 NOS,Capacity3 NOS,Capacity--10,000 FT.10,000 FT.

TYPETYPE--IIII--9 NOS,Capacity9 NOS,Capacity--15,000 FT.15,000 FT.TYPETYPE--IIIIII--7 NOS,Capacity7 NOS,Capacity--20,000 FT.20,000 FT.

TYPETYPE--IVIV--1 NO>20,000 FT.1 NO>20,000 FT.

CHARTER HIRED TYPECHARTER HIRED TYPE--IIIIII--2 NOS.2 NOS.CHARTER HIRED TYPECHARTER HIRED TYPE--IVIV--1 NO.1 NO.

CHARTER HIRED RIGS OWNED BYCHARTER HIRED RIGS OWNED BYSHIVANI.SHIVANI.

OWN RIGS ARE BHEL MAKE EXCEPT ONEOWN RIGS ARE BHEL MAKE EXCEPT ONE

TYPETYPE--2 AND ONE TYPE2 AND ONE TYPE--3 RIG WHICH ARE3 RIG WHICH AREROMANIAN MAKE.ROMANIAN MAKE.


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POPULATION OF RIGSPOPULATION OF RIGS

TOTAL RIGS(25)TOTAL RIGS(25)

OWNED RIGS (20)OWNED RIGS (20) CHARTERED RIGS (5)CHARTERED RIGS (5)

Drilling Mobile testing rig

3 nos Type-2

Operational

1 no-Type-3 RIG

under transportation

RIG BUILDINGRIG BUILDING


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RIG BUILDINGRIG BUILDINGRig building operationRig building operation::

Drill site preparationDrill site preparation--land around well siteland around well sitecleared, graded& leveled, approach roadcleared, graded& leveled, approach road

preparation for transportationpreparation for transportationRoute surveyRoute survey--conducted prior to rig shiftingconducted prior to rig shifting

Rig release / Rigging downRig release / Rigging down--lowering of mastlowering of mast

and other equipmentand other equipmentTransportation of rig equipmentsTransportation of rig equipments--properpropertransport fleet chosen based on equipmenttransport fleet chosen based on equipmentdimension, weight & route selecteddimension, weight & route selected

Rigging upRigging up-- Raising of mast and otherRaising of mast and other

equipmentequipment(First two operation done before rig release)(First two operation done before rig release)

TRANSPORTATION FLEETTRANSPORTATION FLEET


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TRANSPORTATION FLEETTRANSPORTATION FLEETMOLMOL 20 TON OIL FIELD TRUCK CUM20 TON OIL FIELD TRUCK CUM

HEAVY TUG WITH WINCHHEAVY TUG WITH WINCH--6NOS(OWNED)6NOS(OWNED)

CRANESCRANES

40 TON CAPACITY40 TON CAPACITY -- 10 NOS (HIRED)10 NOS (HIRED)

20 TON CAPACITY20 TON CAPACITY --19 NOS (HIRED)19 NOS (HIRED)100 TON CAPACITY100 TON CAPACITY --02 NOS(OWNED)02 NOS(OWNED)

30 TON CAPACITY30 TON CAPACITY

--01 NO(OWNED)01 NO(OWNED)

TRUCKSTRUCKS

9 TON CAPACITY9 TON CAPACITY--23 NOS(HIRED).23 NOS(HIRED).


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T R A I L E R S T R A I L E R S

TRAILERSTRAILERS --30 TON CAPACITY30 TON CAPACITY

06 NOS (HIRED)06 NOS (HIRED)

TRAILERSTRAILERS --20 TON CAPACITY20 TON CAPACITY

20 NOS (HIRED)20 NOS (HIRED)


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RIGRIG

TRANSPORTATIONTRANSPORTATION

APPROXIMATELY 70 TRAILER LOADSAPPROXIMATELY 70 TRAILER LOADS

3O TRUCK LOADS.3O TRUCK LOADS.

TIME TAKENTIME TAKEN-- 1515--30 DAYS FOR A30 DAYS FOR ADISTANCE OF 5KM TO 20KMDISTANCE OF 5KM TO 20KM

(INCLUDING RIG BUILDING).(INCLUDING RIG BUILDING).


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GAS

OIL & GAS

OIL

GL

DRILLING

FORHYDROCARBON

TYPES OF DEVELOPMENTTYPES OF DEVELOPMENT


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TYPES OF DEVELOPMENTTYPES OF DEVELOPMENT

WELLSWELLS

VERTICAL WELL


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VERTICAL WELL

BCS

TS-1

20

13 3/8

7 LINER

9 5/8

TS-2

BMS


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DIRECTIONAL WELLDIRECTIONAL WELL

TS-1

TS-2

BMS

BCS

20

13 3/8

9 5/8

7

`

OIL

HIGH ANGLE WELL


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HIGH ANGLE WELL

TVS-1350 M

TVD-2600M

ANGLE OF INCLINATION : 45- 55

MOST COMMON FOR DEVELOPMENT

WELLS

TS-

TS

BMS

BCS


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ENHANCING PRODUCTIONENHANCING PRODUCTION ....


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FIELD OF INTEREST

ERD WELLSERD WELLS

ENHANCING PRODUCTION ....ENHANCING PRODUCTION ....

TVD

HORIZONTAL DRIFT

ENHANCING PRODUCTION ...ENHANCING PRODUCTION ...


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L.D.S.TL.D.S.T.S.D.S.TS.D.S.T.


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MULTIMULTI--LATERAL WELLLATERAL WELL

WELL HEAD INSTALLATION & OILWELL HEAD INSTALLATION & OIL


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FALSE CONDUCTOR

20

13 3/8

9 5/8

FLOW PATHFLOW PATH

A

X-MAS TREE

C

B

PACKER

TO GGS

LAIPLINGAON20 CSG@291M TVD=291M,

-


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9 5/8 CSG@ 3468M TVD=3468M,

58.41, AZIM-113.06,DRIFT-232.7M

12 RAT HOLE @3520M

13 3/8CSG @ 2454M TVD=2454M,

- 0

8 HOLE @ 3737M, TVD=3492.42M

62.9, AZIM-108.5 DRIFT- 471.81M

LBS-5

BMS

LBS-1

LBS-2

LBS-6

BCS

TS-1 TO TS-6

GIRUJAN CLAY

UPPER SAND STONE

NAMSANG

ALLUVIUM

OIL

OIL

0-1100M

1100-1600M

1600-2000M

2000-2450M

2450-3300M

3300-3440M

3440-3660M

3660-3755M


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PLAN VS ACTUAL FOR WELL # B-200-A

-3500

-3000

-2500

-2000

-1500

-1000

-500

0

0 10 20 30 40 50 60 70 80DAYS

PLAN ACTUAL

18 5/8CSG-309M

13 3/8"CSG-1647 M

9 5/8"CSG-2809 M

7"CSG-2948 M

Monitoring of a Well

MUD POLICYMUD POLICY


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MUD POLICYMUD POLICY

High Viscous Gel : for Top hole sectionHigh Viscous Gel : for Top hole section

Non Dispersed mud / Gel Polymer : forNon Dispersed mud / Gel Polymer : for

Intermediate sections:Intermediate sections:

KClKCl--PHPAPHPA--Polyol system : for BCS & KOPILIPolyol system : for BCS & KOPILI

Clay free / Barytes freeClay free / Barytes free NDDF : for payNDDF : for pay

ZonesZones

All above muds are eco friendly &All above muds are eco friendly &

chrome freechrome free

THREE CASING POLICYTHREE CASING POLICY


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TS-1

TS-2

TS-3

TS-4

TS-5TS-6Tipam

Girujan

Clay

Allu-

vium

Na

mSang&

Up

perSand

BCS

HVG for drilling 17 hole

Non Dispersed / Gel-Polymer

for 12 hole

NDDF for drilling inclinedsection covering pay zone

FOUR CASING POLICY


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Tipam

Girujan

Clay

Allu-

vium

Na

mSang&

Up

perSand

BCS

BM

S

HVG for 26 hole

Non dispersed mud for 17 hole

Gel-Polymer for Tipam

KCl-PHPA-Polyol for BCS &

BMS in 8 final phaseKOPILI

PRIMARY WELLCONTROLPRIMARY WELLCONTROL


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PRIMARY WELLCONTROLPRIMARY WELLCONTROL

SUBSURFACE PRESSURES CONTROLLEDSUBSURFACE PRESSURES CONTROLLED

BY DRILLING FLUID COLUMN BY ITSBY DRILLING FLUID COLUMN BY ITS

HYDROSTATIC HEAD, BY ALTERING ITSHYDROSTATIC HEAD, BY ALTERING ITSDENSITY/WEIGHT AS REQUIRED.DENSITY/WEIGHT AS REQUIRED.

TO CONTROL UNEXPECTED FLOW FROMTO CONTROL UNEXPECTED FLOW FROM

WELL DURING DRILLING, BLOW OUTWELL DURING DRILLING, BLOW OUTPREVENTOR (BOP) INSTALLED ON WELLPREVENTOR (BOP) INSTALLED ON WELL

HEAD. CASING AND CEMENTATIONHEAD. CASING AND CEMENTATION

HELPS IN ISOLATION OF THE ZONES.HELPS IN ISOLATION OF THE ZONES.


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BLOW OUT PREVENTOR(BOP)

USED FOR CONTROLLING WELL KICK/

ABNORMAL PRESSURE FROM WELL

f S f


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Inputs for Successful drillingInputs for Successful drilling

Qualified, Skilled & MotivatedQualified, Skilled & Motivated

ManpowerManpower Healthy Rig & EquipmentHealthy Rig & Equipment

Well Planning & MonitoringWell Planning & Monitoring Quality well materials & SparesQuality well materials & Spares

Procedures & SystemsProcedures & Systems Integration of new technologyIntegration of new technology


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DRILLING SERVICESDRILLING SERVICES

Drilling EngineersDrilling Engineers--(Planning as well(Planning as wellas operations).as operations).

Directional drilling engineersDirectional drilling engineers

Cementing engineersCementing engineers

Drilling Fluid EngineersDrilling Fluid Engineers

Liner hanger & Fishing expertsLiner hanger & Fishing experts

Maintenance EngineersMaintenance Engineers

Regional Crisis Management TeamRegional Crisis Management Team

I i i iI iti ti R &


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InitiativesInitiatives..Rig & EquipmentRig & Equipment

Regular AuditsRegular Audits

Self AuditsSelf Audits

Safety AuditsSafety Audits

Tech. AuditsTech. Audits

Third Party inspectionThird Party inspection QHSE AuditQHSE Audit--All drilling rigs have receivedAll drilling rigs have receivedQHSE certifications valid till 21.12.2011QHSE certifications valid till 21.12.2011

OISD AuditOISD Audit

Rig & Equipment UpgradationRig & Equipment Upgradation

Top drives, IRD, Linear motion shaleTop drives, IRD, Linear motion shale

shakersshakers

Initiatives..Initiatives..


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Initiatives..Initiatives..

Self DevelopmentSelf Development Up gradation of Knowledge & SkillsUp gradation of Knowledge & Skills

Trainings & SeminarsTrainings & Seminars


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Well Control SchoolWell Control School--IDT..IDT..

IADCHOUSTON

USA

Driller & Supervisory levels

AccreditationInternational Alliance for Well Control (IAWC)

A joint effort between IADC Well CAP and the International Well

Control Forum (IWCF).

IWCFNETHERLAND

IAWC


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Thank You

drilling services assam asset welcomes for drilling brief

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