Assessing petroleum reservoir reserves and potential for increasing ultimate recovery
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United States of America Patent
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Mar 27, 2012
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app pub date -
Sep 25, 2009
filing date -
Sep 29, 2008
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Abstract
Determining a Recovery Deficiency Indicator™ (RDI™) for a petroleum reservoir provides a novel leading indicator and metric that is designed to quickly assess the potential for increases in reserves and ultimate recovery of petroleum from an operating petroleum reservoir. The RDI™ is determined by relating the Recovery Efficiency (RE) and the Ideal Recovery Efficiency (IRE) (e.g., by dividing RE by IRE to obtain RDI™). The Recovery Efficiency (RE) is determined as the product of areal displacement efficiency (EA), vertical displacement efficiency (EV), and pore displacement efficiency (ED). The Ideal Recovery Efficiency (RE) can be determined by empirically assuming that EA and EV equal 100%.
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