Assessing petroleum reservoir reserves and potential for increasing ultimate recovery

摘要

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 (E_A), vertical displacement efficiency (E_V), and pore displacement efficiency (E_D). The Ideal Recovery Efficiency (RE) can be determined by empirically assuming that E_A and E_V equal 100%.