OTC-ASIA

Pannel Session 9 : SBOP

Technical & Risk Overview

E. Magne

SBOP Drilling History

Slide 2

6722

9473

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000F

eb-9

6

Jun-9

6

Oct -

96

Feb-9

7

Jun-9

7

Oct -

97

Feb-9

8

Jun-9

8

Oct -

98

Feb-9

9

Jun-9

9

Oct -

99

Feb-0

0

Jun-0

0

Oct -

00

Jan-0

1

Ma

y-01

Sep-0

1

Jan-0

2

Ma

y-02

Sep-0

2

Jan-0

3

Ma

y-03

Sep-0

3

Jan-0

4

Ma

y-04

Sep-0

4

Jan-0

5

Ma

y-05

Sep-0

5

Jan-0

6

Ma

y-06

Aug-0

6

Dec-0

6

Apr -

07

Aug-0

7

Dec-0

7

Apr -

08

Aug-0

8

Dec-0

8

Apr -

09

Aug-0

9

Dec-0

9

Apr -

10

Aug-1

0

Dec-1

0

Year

Wate

r D

ep

th (

ft)

Sedco 602

Actinia

Sedco 601

Arctic I

6722

9473

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000F

eb-9

6

Jun-9

6

Oct -

96

Feb-9

7

Jun-9

7

Oct -

97

Feb-9

8

Jun-9

8

Oct -

98

Feb-9

9

Jun-9

9

Oct -

99

Feb-0

0

Jun-0

0

Oct -

00

Jan-0

1

Ma

y-01

Sep-0

1

Jan-0

2

Ma

y-02

Sep-0

2

Jan-0

3

Ma

y-03

Sep-0

3

Jan-0

4

Ma

y-04

Sep-0

4

Jan-0

5

Ma

y-05

Sep-0

5

Jan-0

6

Ma

y-06

Aug-0

6

Dec-0

6

Apr -

07

Aug-0

7

Dec-0

7

Apr -

08

Aug-0

8

Dec-0

8

Apr -

09

Aug-0

9

Dec-0

9

Apr -

10

Aug-1

0

Dec-1

0

Year

Wate

r D

ep

th (

ft)

Sedco 602

Actinia

Sedco 601

Arctic I

Stena Tay

Deep Venture(DS)

With

SID

Stena Clyde

Ocean Baroness

Brazil-

Shell

Brazil-

Shell

Myanmar-

Daewoo

Eq Guinea-Ophir

Brunei-

Shell

Unocal

- Asia

Sarawak-

Shell

Egypt-Shell

Indonesia-

Total

China -

Chevron

Indonesia

-Santos

Phoenix (DS)

Malaysia-

Shell

Slide 3

SBOP Drilling History

"La Jamais Contente", first automobile to reach 100 km/h

1899

Powered by an all-electric engine……!

Slide 4

SBOP Drilling History

• In 2000’s

– Successful and Promising

– Involvement from Operator and Contractor

– Lack of deep-water MODUs

• But in 2010’s…

– Operator & Contractor bought out

– Industry protectionism

– Deep-water Fleet Expansion

Slide 5

Typical Well Schematic

CONVENTIONAL SBOP - DP SBOP - Moored

8.5”

hole

9”5/8

Liner

13”5/8BOP 13”5/8BOP

SID

13”3/8

Csg

21”

Marine

Riser

WH

+36”

13”3/8

HP Csg

Riser

18”3/4 BOP

LMRP

Slide 6

Risk Analysis – Fault Tree

Blowout

&

Kick BOP

Fails

to

Close

&

Small

Kick

BOP

Closed

Too Late

Kick

or no

Margin

Riser

Failure

&

Kick C&K

System

Failure

&

Kick Shoe

Failure

OR

&

Burst & Collapse

Impact & Collision

Extreme Weather

Mooring line failure

OR

Loss of position

Fatigue: Storm and VIV

Wear

Tensioner loss

Slide 7

Risk Analysis – Risk of Blowout B

low

ou

t F

req

ue

nc

y p

er

we

ll

Surface Subsea Surface with SID

Blowout Frequency Comparison

Seabed

Riser Failure

BOP Delayed

BOP Fails

S

c

a

r

e

c

r

o

w

S

i

l

e

n

c

e

Slide 8

SID Subsea Isolation Device

(Half a BOP ?)

Slide 9 SBOP with PRE-INSTALLED MOORING

10 YRP or 100 YRP

WIND

WAVE

CURRENT

SE-ASIA

Intact and

Broken Line

Mud and Well

Control

Pressure

API-RP-

2SK,2T,17G

Slide 10

10 YRP from N Broken

Line L1

4.0% Offset

65% YS

54% MBL

11.5’ Stroke out

N

MASP 6000psi

In the Ground

90 Ksi

(72%YS)

Combined Mooring & Riser Analysis

Slide 11

• Sponsor: Involvement from Operator

• Opportunity (Nbr of wells)

• Development of a Simple SID

SBOP – ASIA

Future?

Thank You / Questions

Slide 12