SLB ML Technology

(1)

Pakistan Petroleum Ltd

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

(2)

 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

(3)

Multilaterals – a new approach,

emerging technology ?

(4)

Think again!!!

• 1929 – Leo Ranney rudimentary attempts MLs. He drilled a 2.44 m vertical shaft in Ohio put men and vertical 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” perhaps pattern, 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 per and Wy. Averaging 2 laterals per well

(5)

ML’s are Not New

1939 – Alexander Grigoryan graduated from Azerbaijan Industrial Institute.

1941 – He drilled what is on record the world first 1941 – 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 to 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 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.

(6)

What are the TAML Classifications

O h l i b

Level 1 _{Level 6}

Open hole mainbore Open hole lateral

Mainbore cased

Open hole lateral Hydraulic isolation at the

Pressure integrity within the junction

Level 2 _{Level 5}

Open hole lateral

junction, via completion

Level 3 Level 4

Mainbore cased Mechanical support

in the lateral

Mainbore and lateral cemented

(7)

(8)

(9)

(10)

(11)

Why Does This Work?

(12)

(13)

(14)

The Future MRC’s to ERC’s

“Extreme Reservoir Contact” 50K’ to 75K’ on the pay

p y

Current MRC (Maximum

Reservoir Contact wells) Wells

Future ERC (Extreme Reservoir Contact)

Wells

(15)

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 th

Time to Drill & Complete: < 1 Month

Incremental Production: +3000 bopd

(16)

Possible ML Design for Producers and Injectors

3-Leg ML Producer

2-Leg ML Injector

Nahr Umr

Sandstone 12m

(17)

(18)

(19)

ML Flow Chart

(20)

FEA of RapidExclude Junction verses the

Washover Junction

RapidX

w/ 2500 psi

L

l 4

/

p

Level 4

Washover System

w/ 10 psi

p

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 Template

junction

(21)

Mechanical Integrity at a Junction

9-5/8” casing

Full size window

L= 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

Schlumber ger

Connection:

F = 150,000 Lb

F

(22)

Reliability issues and future workovers

(23)

Schlumberger ML milestones since 2006

• 2006: Woodside Tender – Vincent Field, 7 systems –

RapidX Level 5 – Sub Sea Vincent Field RapidX 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

(24)

Rapid Products Strength

• High Mechanical strength at

the junction

• 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

(25)

(26)

Phase 1- MRC Australia

well xxx Well xxx well xxx Well xxx 1 2 3 4 5 --22 --11 Well xxx 1

(27)

(28)

Formations

Geological

Considerations

Formations

Water depth 375 –

400m

Considerations

400m

Overburden

Calcarenite & Marl

Claystone / Shale

Sandstone – Reservoir

Sandstone Reservoir

(top res ±1300m

TVDSS)

(29)

(30)

Oil Industries Highest Strength

Multilateral Junction – RapidX System

p

y

TAML Level 5

9 5/8” RapidX

9-5/8 RapidX

(31)

SLB Level 5 Junction

(32)

RapidX, RapidExclude and RapidConnect

Sizes

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

(33)

RapidX Junction

Template

Connector Connector

(34)

(35)

(36)