EEO Workshop 2012
EEO and the Oil and Gas Industry:
Data and Opportunities Evaluation
Perth Sept 6 2012
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Overview
Industry
context
Sources
of energy use
Issues
EEO
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in data management
examples
Industry context
Business drivers
REGULATION/
PLANNING
APPROVAL/
REPORTING
COSTS/FINANCIAL
RISKS
RESOURCE
EFFICIENCY
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INVESTORS
REPUTATION
INDUSTRY/
PROJECTS
INNOVATION/
COMPETITIVE
ADVANTAGE
NEW TECHNOLOGY
ENERGY
EFFICIENCY/
GHG
PERFORMANCE
Industry context
Industry features - conventional gas

Upstream (offshore) and downstream (onshore)

Export (LNG and condensate) and domestic
(domgas)

Small no. of operational processing plants: most
capacity under development

Most energy consumption sourced from fuel gas

LNG production is energy intensive

LNG plants are proprietary designs
….. Focus on efficient hydrocarbon recovery
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Sources of energy use
1
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Upstream
Sources of energy use
1

Gas turbines

Standby diesel

Vessels/transport

(Flaring/venting)
Upstream
for exploration, power, upstream processing, compression
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Sources of energy use
1
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Downstream
Sources of energy use
1
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Downstream
Sources of energy use
1

Gas turbines

Standby diesel

Ancillary systems

(Flaring/venting)
Downstream
for power, processing, liquefaction (LNG), compression
(domgas)
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Issues in data management
Energy content of fuel gas
Varies
with reservoir changes, point in the
process and operating mode
Integration with process control systems and
data
Woodside
uses Production Accounting System
(PAS)
Accuracy of metering
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Typical
5-10% for fuel gas use and production
Higher
(1-2%) for custody transfer at sales point
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Issues in data management
Estimation of venting and flaring

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e.g. Engineering estimates, emissions factors or
other
Examples 1
Upstream EEO
From Woodside EEO 2006 -2011

Flare and vent recovery system

Reduce stripping gas flow rate

Installation of a Complabloc heat exchange

Reduced flaring from a LP separator (30,400 GJ
pa)

Fuel gas return line (190,000 GJ pa)
Plus
Optimal offshore system configuration at design stage
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Process, equipment optimisation during operations and
maintenance
Examples 1
Downstream EEO
From Woodside EEO
Gas Plant – turn off thermal combustion
unit (through upgrades of Acid gas Recovery Units)
Karratha
Plus
Optimal offshore system configuration at design stage
Process, equipment optimisation during operations and
maintenance
Note – May be trade-offs between process and energy
efficiency
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Contact:
Tom Clark, Principal Consultant
WorleyParsons Sustainability and
Carbon Consulting
08 6311 5146
tom.clark@worleyparsons.com
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