ELGIN FRANKLIN UPDATE Bruce Lawson

Asset Integrity Manager TEPUK

Presentation title - Place and Country - Date Month Day Year 2

ELGIN FIELD LAYOUT

Presentation title - Place and Country - Date Month Day Year 3

ELGIN: KEY FACTS & FIGURES

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Operated by Total for 8 x JV partners

Elgin PUQ (Production Utilities Quarters) & wellhead platforms linked by 90m bridge

High Temperature/High Pressure fields

On stream since 2001

Produces 135k boe/d

ELGIN G4: WELL ARCHITECTURE

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On Elgin ‘A’ (wellhead) platform

Seabed @ 93m below platform

Chalk HOD non-producing

low permeability high pressure

Fulmar producing

high permeability lower pressure

ELGIN G4 LEAK: DAY ONE (25 MARCH)

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12.20: gas & condensate leak confirmed at the wellhead on Elgin’s G4 well

13.30: evacuation begins of Elgin and the adjacent drilling rig

16.40: 219 people have been evacuated, leaving 19 still on the complex

01.45: Elgin OIM decides to fully abandon

Platform, rig & wells shut down

Export pipelines isolated

02.30: the last 19 people are evacuated

All 238 people safely and quickly evacuated

ELGIN G4 LEAK: INITIAL RESPONSE Informed all appropriate Authorities

Mobilised Emergency & Crisis Response Teams

Oil Pollution Emergency Plan (OPEP) activated

Enforced sea & air exclusion zones (2 & 3 N miles)

Mobilised a fleet of safety & support vessels – mainly Guard, FIFI & ROV vessels

Dispersant ships and planes put on standby

Mobilised well control specialist WWC to assist

Mobilised Oil Spill Response Limited (OSRL) and started frequent monitoring flights (2/day)

Mobilised Blow Out Task Force from Total HQ

Activities controlled sequentially by detailed risk assessment , many of which were reviewed by authorities

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The Ocean Ness Emergency Response & Rescue Vessel

Specialists WWC were mobilised early to assist

ELGIN G4 LEAK: INITIAL IMPACTS

Gas, condensate & mud released via D annulus

Condensate & mud fall to sea

Sheen covers a large area of sea surface

Waxy paraffinic deposits on wellhead platform

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ELGIN G4 LEAK: INITIAL IMPACTS

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27 March gas plume and

sheen visible, but not obvious

7 April surface sheen still

visible, but less than 1/10th micron thick

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Elgin G4 leak: environmental impacts

Widespread consensus that the environmental impacts are minimal

Environment Monitoring Activities 2 Oil Spill Response Limited (OSRL) flights per day to monitor marine pollution

Regular survey flights by the National Centre for Atmospheric Science (NCAS)

Daily water samples taken in Elgin surroundings

Regular ROV surveys of seabed around conductor pipe

Leak flow rate estimated at an initial 2kg/s but quickly fell to less than 0.6kg/s

Gas composition: 70% methane + 30% ethane, butane, etc; no H2S traces

Surface sheen extended many kms, but was less than 1/10th of a micron thick

Light condensate that disperses naturally and easily: 50% evaporation in the first 24 hours alone

Several independent chemical, sediment and & fish analyses confirmed no direct marine contamination (eg, Scottish Government, etc)

ELGIN/FRANKLIN: PIPELINE SYSTEM

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Elgin PUQ shutdown and isolated from pipeline systems

back

Presentation title - Place and Country - Date Month Day Year 13

SAFETY STATUS • Full POB (138) re-established on PUQ

• Normal ISSOW and risk assessment processes re-established

• Required SCEs now essentially operational on PUQ and on WHP

• Essential CAT A maintenance re-established by crew.

• 3 Senior Management Briefings have been made to offshore crew in recent weeks involving both TEPUK and Rowan.

• Surface exclusion zone still in place, but only to control abnormal access to area, otherwise normal operations resuming. Air exclusion zone gone.

• Preparation ongoing to install Elgin B jacket in late September by S7000 HLV.

• Ongoing involvement of HSE & DECC – they remain very supportive

Normal Operations Resuming

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TEPUK Onshore Emergency Response, 30/05/2012, Aberdeen

EMERGENCY RESPONSE

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TEPUK – EMERGENCY RESPONSE STRATEGY

On Scene or Operational

Site Emergency

Response

Organisation

Role: On-scene management of the incident

Location: Site

Tactical

Emergency

Response Team

(ERT)

Role: Provision & Coordination of support to the incident site

Location: Aberdeen

Strategic

Crisis

Management

Team

(CMT)

Role: Management of strategic issues arising from the incident site

Location: Aberdeen

Corporate / Group

Crisis

Management

Cell

(CMC)

Role: Provision of support to TEP UK; management of group level strategic issues

Location: Paris

20 TEPUK Onshore Emergency Response, 30/05/2012, Aberdeen

ONSHORE ERTS FIRST 24 HOURS

Incident Site

Emergency Response Room

Asset Engineer

ERT

Duty Manager

CMT

Board Room

WOEG (BG33)

CMT Leader

Duty Well Ops

CMT Liaison

HQ

WCM

Logistics

Safety

HR ENV Group

DECC

OSRL MCA

ARCC

NATS

Well control

Specialist Contractor

Corp. Coms.

Reception Centre

Team Coordinator

Relative Response Team

Contractor Liaison

Team Leader

ERSC

MODU Contractor

ERR

Media Response Room

MRT

Vessels

SOSREP

22 TEPUK Onshore Emergency Response, 30/05/2012, Aberdeen

Incident Management Team

Risk of Pollution?

Advise DECC/MCA

SOSREP Informed and kept

appraised.

Company taking acceptable action to minimise pollution?

SOSREP intervenes and gives direction. SOSREP happy and gives tacit approval of

response plan.

Continue with Plan & Monitoring

YES

YES NO

Twice daily aerial surveillance flights for sheen quantification – 115 flights will have been undertaken by the final sortie planned on 6th June

OSCAR Modelling from DGEP/HSE/ENV informs flight plans and alerts to neighbouring installations / transboundary lines if required.

OSIS modelling linked to aerial surveillance findings supports condensate release rate calculation and daily PON1 updates to DECC

Satellite imagery DGEP & OSRL

Protocol developed for daily sampling of sheen / waxy deposits from sea surface. Wax / mud samples taken from Elgin WHP.

Sample analyses undertaken by Intertek, FGO & CEDRE confirmed weathered condensate and with HOD condensate characteristics

Short, medium and long-term survey and Environmental Impact Assessment scope of work shared with DECC, Marine Scotland and Government Interest Group (GIG) Environment Group

23 TEPUK Onshore Emergency Response, 30/05/2012, Aberdeen

G4 ENVIRONMENTAL RESPONSE: MONITORING

G4 ENVIRONMENTAL RESPONSE: SPILL COMBAT READINESS Hercules and Nimbus aerial dispersant application system pack, plus air crew and OSRL personnel on standby at East Midlands Airport throughout incident (returned to normal service once well killed)

44m3 of dispersant strategically located at Inverness airport (airside)

FiFi vessels available to hose sheen if required

Other vessels available to prop-wash or use dispersant sprayers to spray water to speed up dispersion if required

2 containment & recovery systems in the field (reduced to one post-kill) with back-up system portside if required.

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THANK YOU FOR YOUR ATTENTION ANY QUESTIONS ?

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