Pakistan Petroleum LtdPakistan Petroleum Ltd

Tim O’Rourke – MEA – ML ManagerFahd Ali - PAG Marketing ManagerAnees Khokhar– CEO - ITS PakistanAnees Khokhar– CEO - ITS Pakistan

Karachi, PakistanJune 20th, 2012 Rapid Multilateral SolutionsRapid Multilateral Solutions

Multilaterals – “a new approach?”

Quick overview of TAML Levels

Moving forward – MRC to ERC

ARACMO – Level 3 SPE Presentation ARACMO Level 3 SPE Presentation

WEL TAML Presentation – Deep Water

Multilaterals – a new approach, emerging technology ?emerging technology ?

Think again!!!

• 1929 – Leo Ranney rudimentary attempts MLs. He drilled a 2.44 m vertical shaft in Ohio put men andvertical shaft in Ohio, put men and equipment in the bottom of the hole and they dug horizontal holes– he also drilled in a horizontal radial pattern “spokes of a wheel” perhapspattern, spokes of a wheel perhaps creating the 1st ML ever.

• In the 1940’s John Zublin drilled horizontal drain holes for operators in Calif.

• In 1945 Mr. Zublin eventually re-enters 250 wells in Calif., West Texas and Wy Averaging 2 laterals perand Wy. Averaging 2 laterals per well

Information courtesy Hart E&P Mag Aug 07 & Julie Bonner, Chairperson TAML

ML’s are Not New

1939 – Alexander Grigoryan graduated fromAzerbaijan Industrial Institute.

1941 – He drilled what is on record the world first1941 – He drilled, what is on record, the world first directional well (Baku 135) using only Turbo Drills.

This directional well led to him to develop a way toThis directional well led to him to develop a way to increase of production in the same way a “tree root extends to soil”.

* In 1953 he drilled (66/45) 9 branches ea leg 80 toIn 1953 he drilled (66/45) 9 branches, ea leg 80 to 300 m without whipstocks or cement plugs

* Increased exposure to the pay zone by 5.5 times* Increased production by 17 times

110 wells followed from Eastern Siberia to the West Ukraine near the Black Sea.

Information courtesy Hart E&P Mag Aug 07 & Julie Bonner, Chairperson TAML

What are the TAML Classifications

O h l i b

Level 1 Level 6Open hole mainbore

Open hole lateral

Mainbore casedOpen hole lateral Hydraulic isolation at the

Pressure integrity within the junction

Level 2 Level 5

Open hole lateraljunction, via completion

Level 3 Level 4

Mainbore casedMechanical support

in the lateral

Mainbore and lateral cemented

Saudi Aramco 1996

Saudi Aramco 2002

Why Does This Work?Why Does This Work?

The Future MRC’s to ERC’s “Extreme Reservoir Contact” 50K’ to 75K’ on the payp y

Current MRC (Maximum

Reservoir Contact wells) Wells

Future ERC (Extreme Reservoir Contact)

WellsReservoir Contact wells) Wells Wells

Costs / Benefit Discussion/

Well cost: 4 M$

Time to Drill & Complete: 2.5 / 3.0 Months

Average Production: 5000 bopd

Additional cost: < 1 M$

Ti t D ill & C l t 1 M thTime to Drill & Complete: < 1 Month

Incremental Production: +3000 bopd

Possible ML Design for Producers and Injectors

3-Leg ML Producer2-Leg ML Injector2-Leg ML Injector

Nahr UmrSandstone 12m

ML Concept for PDO in Sandstonep

ML Flow ChartML Flow Chart

FEA of RapidExclude Junction verses the Washover JunctionWashover Junction

RapidXw/ 2500 psi

L l 4/ p

Level 4Washover System

w/ 10 psip

Negligible deflection with 2500 psi of load applied to the Connector and Template

3.51” of deflection into the mainbore at 10 psi of load to a

standard level 4 wash-over j ti Connector and Templatejunction

Mechanical Integrity at a Junction

9-5/8” casing

Full size windowL= 15 ft , W= 8.5 in.P j t d A 1500 i /Projected Area= 1500 sq.in. +/-

Formation Contact Pressure:er

if p = 100 psi

Radial Force Component on C ti

Schlumberger

Connection:

F = 150,000 LbF

Reliability issues and future workovers

Before After

Schlumberger ML milestones since 2006• 2006: Woodside Tender – Vincent Field, 7 systems –

RapidX Level 5 – Sub Sea Vincent FieldRapidX Level 5 Sub Sea Vincent Field

• 2006: Development of 7” Level 5 RX*

• 2007: Woodside Vincent Field 4 systems installed• 2007: Woodside Vincent Field – 4 systems installed

• 2008: First Tri Lateral – Level 3 Aramco

2008: Woodside Vincent Field – 4 systems plus World

world first TAML level 5 first Tri Lateral

• 2008: Woodside orders 17 systems

• 2008: First Tri Lateral – Level 3 Aramco

*Mark of Schlumberger

Rapid Products Strength

• High Mechanical strength at• High Mechanical strength at

the junction

• Junction has long term stability• Junction has long term stability

e.g. fragile shales, mobile salts,

depleted reservoirs Level 4 Mill-over Junction p

• Junction is assembled

downhole not constructed

Junction Collapsedp

Saudi Aramco First

Phase 1- MRC Australia well xxx

Well xxx

well xxx

Well xxx1 2

34

5

--22 --11Well xxx1

Phase 1 & 2 MRC – each well > 6K m

FormationsGeological

ConsiderationsFormationsWater depth 375 –

400m

Considerations

400m

Overburden Calcarenite & MarlCalcarenite & Marl

Claystone / ShaleClaystone / Shale

Sandstone – ReservoirSandstone Reservoir

(top res ±1300m TVDSS)

Typical Well Plan

Oil Industries Highest Strength Multilateral Junction – RapidX System p y

TAML Level 5

9 5/8” RapidX9-5/8 RapidX2500 psi

SLB Level 5 Junction

Top View Bottom View

RapidX, RapidExclude and RapidConnect SizesSizes

A B• Size 7” 9-5/8”

C• A 7.00” 9-5/8”

D• B 4.00” 4.75”

• C 2.99” 4.00”

E• D 3-1/2” 5.00”

• E 4 1/2 7 00”• E 4-1/2 7.00

RapidX Junction

TemplateConnectorConnector

Water Injector

Project’s Typical Multilateral Completions

Five x Level 5 Tri Lateral RapidX deployed March 2012deployed March , 2012