Shell upstream energy benchmarking model - Nnamdi Wali ... - IPIECA
Shell upstream energy benchmarking model - Nnamdi Wali ... - IPIECA
Shell upstream energy benchmarking model - Nnamdi Wali ... - IPIECA
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<strong>Shell</strong> Exploration & Production<br />
<strong>Shell</strong> Benchmarking Concept<br />
• Energy efficiency based benchmark that normalises the differences in installations (as<br />
far as practical) to achieve “apples to apples” comparison<br />
• Considers the <strong>energy</strong> required to produce and export hydrocarbon from the installation<br />
• Multi-step process<br />
– Calculates theoretical emissions from relevant fluid flow and thermodynamic<br />
relationships<br />
– The theoretical emissions are then modified to get predicted figure by empirical<br />
coefficients established through field testing during development of the concept.<br />
• Metric for comparison is the CO2 Efficiency Index (CEI)<br />
– CEI = Actual emissions / Predicted emissions X 100 (the lower the number, the<br />
better)<br />
• To compensate for conditions that cannot be easily <strong>model</strong>led, installations CEIs are<br />
compared in Peer Groups.
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