Energy Efficiency and Ecological
Safety
KazEnergy Forum 2001
Astana, October 4-5 2011
Nick Maden
Senior Vice President
Statoil Exploration International
1 - 2011-09-26
• 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
2 - 2011-09-26
Health, safety and the environment (HSE)
Serious Incident Frequency, SIF
3 - 2011-09-26
THE RISK MANAGEMENT PROCESS
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ESTABLISH THE CONTEXT
IDENTIFY THE HAZARD
ANALYSE THE RISK
RISK
ASSESSMENT
EVALUATE THE RISK
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CONTROL – RISK TREATMENT
Environmental Impact Factor (EIF) Toolbox
4 - 2011-09-26
Towards Zero Harm with EIF
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
5 - 2011-09-26
Produced Water Management
Zero
harm
Water treatment technology
Chemical Substitution Environmentally
Responsible chemicals
CTour
Reduction/optimisation
of chemical use
Re-injection or
treatment &
disposal
EIF Tool,
(2000)
6 - 2011-09-26
PECT-F/
EPCON /
Mares Tail
Drilling Discharges Management
Drilling Fluid (Mud) & Cuttings
EIF Drilling Discharges (EIFDD)
• water based drilling fluid instead of
• Based on similar risk principles
as for the present EIF used for
produced water discharges
oil based drilling fluid, if possible.
• Reuse of drilling fluids (batch drilling,
• Inclusion of risk in the sediments
storage facilities)
• Options for handling cuttings from
EIF – Drilling discharges
drilling
7 - 2011-09-26
• Short-term stress in the water
column versus long-term stress
in the sediment
EIF value - Water column
EIF value - Sediment
Contribution to EIF:
Contribution to EIF:
Reduction in use and discharge of hazardous
chemicals on NCS from 2000 to 2005
8 - 2011-09-26
Green chemicals, tons
Yellow chemicals, tons
Red chemicals, tons
Black chemicals, tons
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 NOxemissions
• CO2 extraction from natural gas
9 - 2011-09-26
CO2 Effective Production
World
Europe
19.0
10.1
7.0
Carbon Intensity (CO2 kg/boe)
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
10 - 2011-09-26
Oil spill contingency established in Norway
1. Oil Spill Trajectory
Modelling
Private
2. Environmental Risk
Analysis
3. Oil Spill Response Analysis
Municipalitie
s
11 - 2011-09-26
Government
4. Oil Spill Response Plan
5. Training and exercises
Equipment overview
12 - 2011-09-26
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
13 - 2011-09-26
Thank you for listening
Nick Maden
Sen. Vice President
Statoil Exploration International
www.statoil.com
14 - 2011-09-26