SLB ML Technology

Pakistan Petroleum Ltd

Tim O’Rourke – MEA – ML Manager Fahd Ali - PAG Marketing Manager Anees Khokhar– CEO - ITS Pakistan

Karachi, Pakistan June 20th, 2012

Rapid Multilateral Solutions

 Multilaterals – “a new approach?”  Quick overview of TAML Levels  Moving forward – MRC to ERC  ARACMO – Level 3 SPE Presentation  WEL TAML Presentation – Deep Water

Multilaterals – a new approach, emerging technology ?

Think again!!!

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

•

1929 – Leo Ranney rudimentary attempts MLs. He drilled a 2.44 m vertical shaft in Ohio, 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 pattern, spokes of a wheel 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 reenters 250 wells in Calif., West Texas and Wy Wy. Averaging 2 laterals per well

ML’s are Not New 1939 – Alexander Grigoryan graduated from Azerbaijan Industrial Institute. 1941 – He drilled, drilled what is on record, record the world first directional well (Baku 135) using only Turbo Drills. This 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, 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

Level 1

Level 6

Open hole O h l mainbore i b Open hole lateral

Pressure integrity within the junction Level 2 Mainbore cased Open hole lateral

Level 5 Hydraulic isolation at the junction, via completion

Level 3 Mainbore cased Mechanical support in the lateral

Level 4 Mainbore and lateral cemented

Saudi Aramco 1996

Saudi Aramco 2002

Why Does This Work?

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

Current MRC (Maximum

Future ERC (Extreme Reservoir Contact)

Reservoir 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 tto D Time Drill ill & Complete: C l t < 1 Month M th Incremental Production: +3000 bopd

Possible ML Design for Producers and Injectors 3-Leg ML Producer 2-Leg ML Injector

Nahr Umr Sandstone 12m

ML Concept p for PDO in Sandstone

ML Flow Chart

FEA of RapidExclude Junction verses the Washover Junction LLevell 4 Washover System p w/ 10 psi

3.51” of deflection into the mainbore at 10 psi of load to a standard level 4 wash-over junction j ti

RapidX w// 2500 ppsi

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

Mechanical Integrity at a Junction 9-5/8” casing Full size window L= 15 ft , W= 8.5 in. P j t dA Projected Area= 1500 sq.in i . +/-/ Formation Contact Pressure: if p = 100 psi

er mberg Schlu

Radial Force Component on C Connection: ti

F

F = 150,000 Lb

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 Field

•

2006: Development of 7” Level 5 RX*

•

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 the junction

•

Junction has long term stability e.g. fragile shales, mobile salts,

Level 4 Mill-over Junction

p reservoirs depleted

•

Junction is assembled downhole not constructed

Junction Collapsed p

Saudi Aramco First

Phase 1- MRC Australia 3 well xxx

2 Well xxx

-1

1 Well xxx

-2

4

5 well xxx

Phase 1 & 2 MRC – each well > 6K m

Geological Considerations Formations Water depth 375 – 400m

Overburden Calcarenite & Marl

Claystone / Shale

Sandstone – Reservoir (top res ±1300m TVDSS)

Typical Well Plan

Oil Industries Highest Strength p System y Multilateral Junction – RapidX TAML Level 5 99-5/8 5/8” RapidX 2500 psi

SLB Level 5 Junction

Top View

Bottom View

RapidX, RapidExclude and RapidConnect Sizes B

A

•

Size

7”

9-5/8”

C

D

•

A

7.00”

9-5/8”

•

B

4.00”

4.75”

•

C

2.99”

4.00”

•

D

3-1/2”

5.00”

•

E

4 1/2 4-1/2

7 00” 7.00

E

RapidX Junction

Template Connector

Water Injector

Project’s Typical Multilateral Completions

Five x Level 5 Tri Lateral RapidX deployed March , 2012