01 total bruce lawson elgin story

8/10/2019 01 Total Bruce Lawson Elgin Story

1/23

ELGIN FRANKLIN UPDATE

Bruce Lawson

Asset Integrity Manager TEPUK


2/23

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


3/23

ELGIN FIELD LAYOUT



4/23

ELGIN: KEY FACTS & FIGURES

4

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


5/23

ELGIN G4: WELL ARCHITECTURE

5

On Elgin A

(wellhead) platform

Seabed @ 93m

below platform

Chalk HOD

non-producing

low permeability

high pressure

Fulmar

producing

high permeability

lower pressure


6/23

ELGIN G4 LEAK: DAY ONE (25 MARCH)

6

12.20: gas & condensate leak confirmed at thewellhead on Elgins G4 well

13.30: evacuation begins of Elgin and the adjacentdrilling rig

16.40: 219 people have been evacuated, leaving19 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


7/23

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 mainlyGuard, FIFI & ROV vessels

Dispersant ships and planes put on standby

Mobilised well control specialist WWC to assist

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

Mobilised Blow Out Task Force from Total HQ

Activities controlled sequentially by detailed riskassessment , many of which were reviewed byauthorities

7

The Ocean Ness Emergency Response & Rescue Vessel

Specialists WWC were mobilised early to assist


8/23

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

8


9/23

ELGIN G4 LEAK: INITIAL IMPACTS

9

27 March

gas plume and

sheen visible, but

not obvious

7 April

surface sheen stillvisible, but less than

1/10thmicron thick


10/2310

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 1/10thof 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)


11/23


12/23


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


13/23

14G4 Services companies representative meeting, Aberdeen, 10/08/12


14/23



15/23



16/23



17/23

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

EMERGENCY RESPONSE


18/23

19TEPUK Onshore Emergency Response, 30/05/2012, Aberdeen

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


19/23


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

HRENV

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


20/23

SOSREP


Incident Management

TeamRisk 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

YESNO


21/23

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

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

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

Satellite imagery DGEP & OSRL

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

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

Short, medium and long-term survey and Environmental Impact

Assessment scope of work shared with DECC, Marine Scotland andGovernment Interest Group (GIG) Environment Group


G4 ENVIRONMENTAL RESPONSE: MONITORING


22/23

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.

24


23/23

01 total bruce lawson elgin story

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