nathalie franck fulmar field coiled tubing campaign · pdf filefulmar field coiled tubing...

Fulm

ar Field

Coiled Tubing Cam

paign Boosts Production

Fulm

ar Field

Coiled Tubing Cam

paign Boosts Production

DEVEX 15t

hMay

201

3

Nathalie Franck

2Talisman Sinopec Energy UK Limited

Fulm

ar -Field Bac

kground

Reservoir

U. Jurassic Fulmar Sandstone

Gross Thickness

700 ft TVD (1,500ft TVD m

ax)

API

40o

Initial Pressure

5700 psia

STOIIP

822 MMstb

Cum Oil at end 2012

560 MMstb

History

1975: Discovery

1982: 1st Oil Shell Operated

2006: Talisman Operated

2008: Halley Reinstatement

2010: Auk North Online

6 Active Producers: FA01, FA06,FA14, FA15, FA26, FA33

5 Active Injectors:FA03, FA07, FA12, FA21, FA28

SW

NE


0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

160,000

180,000

200,000

Feb-82

Feb-84

Feb-86

Feb-88

Feb-90

Feb-92

Feb-94

Feb-96

Feb-98

Feb-00

Feb-02

Feb-04

Feb-06

Feb-08

Feb-10

Feb-12

Oil export bopd

Water production bwpd

Fulm

ar Historica

l Production 198

2-20

12

Gas Injection

Water Injection


Fulm

ar Platform

Upgrades

200

6 -2012

HVAC upgrade in TR and

process modules

Deluge piping internal

cleaning

Controls

upgrade

Increased

PFP/painting

Upgrade

PA

system

REPLACE

CAISSONS

F&G system

upgrade

Small bore tubing

Upgrade programme

Water

Injection plant

maintenance

Inst air supply

upgrade

Lifeboats

upgrade

Process

Control

valves

Biocide AFA

Jacket repairs


Objectives

of the Well C

T cam

paign

•Re-instate high potential wells that are shut due to integrity & scale

•FA15, FA14, and FA33

•Conduct operations safely and with no environmental impact

•Gather data to assess further remaining opportunities

•Boost oil production rates


Fulm

ar –Top Structure Map

CT campaign 2011-2012

00.5

1km


•Completed in Sep. 1987

•Cumulative Oil Production: 30MMstb

•Well S/I since Nov 2006

–Suspended with Halliburton HX-4 RBP set

at 9,556 ft BRT.

–Equalising Prong Recovered in 2007 but

unable to recover plug with slicklinedue to

restricted access / scale (no access to the

fish neck of the RBP)

‘Main’Fulmar Sands (Shoreface)

Ribble

sand

Avon

shale

FA15

Log and History

Dec 91

Jan 91

Jul 93

Apr 94


FA15

Operations & Perform

ance

Summary

•Perform

tubing drift run & scale clean out to HX-4 RBP at 9,556 ft

•Perform

tubing and annulus pressure test for integrity purposes

•Recover HX-4 RBP from the well

•Identify tubing-annulus leak path with M

FCT & PLT (tbgleak point ~ 9050 ft BRT)

•Set modular straddle and repair tubing-annulus leak

•Set SSSV

•Perform

SISQ

•Hand well back to production

•Last well test:

12/03/2013 1,500bopd (93%BSW)

1,900

320 –480 –640

FA15

Actuals

Predicted

Oil Rates


FA15

success ex

plained

WE

Swincreasing

(%)

Gravity Segregation

R A

Main sands

Swin Nov. 2006

Swin M

ar. 2011

0 100

10

Talisman Sinopec Energy UK Limited

FA14

Log and History

Feb 90

SCAB liner

Oct 94


Clyde Fm.

Apr 90

•Completed in Jul. 1987

•Cumulative Oil Production: 12MMstb

•Well S/I since July 2006 & 99% W

ater Cut

–Known scaling issues in tubing above

SSSV

–PLT data from 1997

•No contribution from Clyde Fm

•All flow from Lydell

Lydell

Avon

11


•Oct. 2011 -ReperfLydell

–CT Turbo M

ill

–Perforate Lydell

–200 bopd(99% BSW)

•Jan. 2012 -ReperfClyde

–Perforate Clyde

–Set Baker Bridge Plug at 10,805ft to

isolate Lydell

–Perform

SISQ

–Hand well back to production

•Last well test:

12/03/2013 350bopd (75%BSW)

FA14

Operations an

d Perform

ance

Summary

Feb 90

SCAB liner

Oct 94


Clyde Fm.

Apr 90

Jan 12

580

60 –325 –590

FA14

Actuals

Predicted

Oil Rates

Lydell

Avon

12


FA14

success ex

plained

Swin Jan. 2012

Perm

increasing

(mD)

5000

0.01

NS

Swincreasing

(%)

0 100

Clyde Fm. –future well infill target

Perm

eability

13


•Completed in Nov. 1994

•Cumulative Oil Production: 1.5MMstb

•Well S/I since Jan 2001

–Workoverattempted in 2002 but suspended

due to LSA scale

–Well suspended with 2 shallow plugs

FA33

Log and History


Ribble

Sand &

Avon

shale

14


•Confirm

access to well and recover two shallow set tubing plugs

•Clean out scale in tubing to SSSV and recover BB packer c/w

storm

choke

•Clean out scale in tubing/ liner to ensure access for perforating guns

•Pressure test ‘A’annulus to confirm

integrity

•Re-perforate reservoir and flow to clean-up

•Perform

SISQ (on coiled tubing)

•Re-set storm

choke on BB packer at 1,020 ft BRT

•Trip and inflow test storm

choke

•Hand well back to production

•Last well test:

12/03/2013 750bopd (91%BSW)

FA 33 Operations an

d Perform

ance Summary

2,500

199 –354 –508

FA33

Actuals

Predicted

Oil Rates

15


FA33

Succ

ess Exp

lained

WE

Swincreasing

(%)

Gravity Segregation

R A

Swin Jan. 2001

Swin Jan. 2012

0 100

16


Fulmar 2011-2012 Green Plot

Export Barrels

0

1000

2000

3000

4000

5000

6000

7000

8000

Jan

11

Feb

11

Mar

11

Apr

11

May

11

Jun

11

Jul

11

Aug

11

Sep

11

Oct

11

Nov

11

Dec

11

Jan

12

Feb

12

Mar

12

Apr

12

May

12

Jun

12

Jul

12

Aug

12

Sep

12

Oct

12

Nov

12

Dec

12

Date (mmm yy)

Oil Rate (boepd)Fulm

ar 2011 an

d 201

2 Production

FA14 online

FA15 online

FA33 online

17


Way

Forw

ard…

Future Opportunities:

•FA02 CT Reinstatement

•Regular wirelineinterventions

•Looking at rig upgrade

•Possible infill well campaign

•Potential near field exploration

nathalie franck fulmar field coiled tubing campaign · pdf filefulmar field coiled tubing...

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