1 - 2011-09-26

Energy Efficiency and Ecological Safety

KazEnergy Forum 2001

Astana, October 4-5 2011 

Nick Maden

Senior Vice President

Statoil Exploration International

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• Firm commitment to health, safety and the environment

• Our values guide and drive our performance

• Stringent ethical requirements and code of conduct

• We embrace an open and including leadership style

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Health, safety and the environment (HSE)

Serious Incident Frequency, SIF

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ESTABLISH THE CONTEXT

I DENTIFY THE HAZARD

ANALYSE THE RI SK

EVALUATE THE RI SK

CONTROL – RI SK TREATMENT

COMMUNICATE

&

CONSULT

MONITOR

&

REVIEW

RISK ASSESSMENT

THE RISK MANAGEMENT PROCESS

ESTABLISH THE CONTEXT

I DENTIFY THE HAZARD

ANALYSE THE RI SK

EVALUATE THE RI SK

CONTROL – RI SK TREATMENT

COMMUNICATE

&

CONSULT

MONITOR

&

REVIEW

RISK ASSESSMENT

THE RISK MANAGEMENT PROCESS

Environmental Impact Factor (EIF) Toolbox

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Towards Zero Harm with EIF

Gas, water, cuttings, CO2 ...

Oil and gas

CO2, NOx, CH4, VOC ...

CO2

CO2

Water, CO2, H2S..

Water, cuttings

Oil and gasWaste, cuttings, muds ...

Chemicals ....

Gass, vann

Zero Harm Goal

•Conserving biodiversity

•Limiting emissions and discharges

Key Environmental Aspects

•Oil and natural components in produced water

•Chemicals in produced water and discharges for drilling & wells

•Emissions of NOx and CO2 from power generation and flaring

•Ballast Water

•Waste

•Acute discharges

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Produced Water Management

EIF Tool, (2000)

Water treatment technology

CTour

PECT-F/ EPCON / Mares Tail

Zero harm

Reduction/optimisation of chemical use

Re-injection or treatment & disposal

Chemical Substitution - Environmentally Responsible chemicals

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Drilling Discharges Management

Drilling Fluid (Mud) & CuttingsDrilling Fluid (Mud) & Cuttings

• water based drilling fluid instead of water based drilling fluid instead of

oil based drilling fluid, if possible.oil based drilling fluid, if possible.

• Reuse of drilling fluids (batch Reuse of drilling fluids (batch

drilling, storage facilities)drilling, storage facilities)

• Options for handling cuttings from Options for handling cuttings from

drillingdrilling

EIF value - SedimentContribution to EIF:

EIF value - Water columnContribution to EIF:

EIF – Drilling discharges

EIF Drilling Discharges EIF Drilling Discharges (EIFDD)(EIFDD)

• Based on similar risk principles Based on similar risk principles as for the present EIF used for as for the present EIF used for produced water dischargesproduced water discharges

• Inclusion of risk in the sediments Inclusion of risk in the sediments

• Short-term stress in the water Short-term stress in the water column versus long-term stress column versus long-term stress in the sedimentin the sediment

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Reduction in use and discharge of hazardous chemicals on NCS from 2000 to 2005

Green chemicals, tons

Black chemicals, tonsRed chemicals, tons

Yellow chemicals, tons

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Management of Emissions to Air

• Maximize the efficiency of power generation

• Electrical power from shore

• Flare gas recovery system at several installations

• VOC recovery system on FPSO’s and shuttle tankers for offshore loading

• Low NOx burners in gas turbines (25 ppm NOx emission), since 1998

• Catalytic cleaning (SCR) or gas motors on some supply boats to reduce NOx-emissions

• CO2 extraction from natural gas

Europe

World

Carbon Intensity (CO2 kg/boe)7.0

10.119.0

CO2 Effective Production

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Management of Emissions to Air

Carbon Capture & Storage

Since 1998 CO2 separated from natural gas at the Sleipner field has been injected in a deep saline aquifer – this has contributed to a 13% reduction in CO2 emission for the NCS

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Oil spill contingency established in Norway

1. Oil Spill Trajectory Modelling

2. Environmental Risk Analysis

3. Oil Spill Response Analysis

4. Oil Spill Response Plan

5. Training and exercises

Private

Municipalities

Government

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Equipment overview

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Members of NOFO

Norwegian Clean Seas Association For Operating Companies

• More than 30 companies being active members

• The Operator has the main and overall responsibility for fighting an oil spill – inclusive strategic management

• NOFO has responsibility for tactical and operational management of the emergency resources taken into operation

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Nick Maden

Sen. Vice President

Statoil Exploration International

www.statoil.com

Thank you for listening