油田水驱精细挖潜措施经济效益评价方法

ECONOMIC EVALUATING METHOD OF THE FINE POTENTIAL-TAPPING MEASURES FOR THE WATERFLOODED OILFIELD

大庆油田2010年以来实施了水驱精细挖潜示范工程,该工程相对一般水驱调整实施的油水井措施比例高、措施种类多,按照常规以措施投入产出比等单项指标不能系统和综合评价其不同措施及不同区块经济效益,为了给水驱精细挖潜油水井措施经济效益评价和优化措施提供更为有效的方法,研究形成了包括定义7个措施经济效益评价单项指标和综合评价指标在内的措施经济效益综合评价方法,该方法在长垣外围油田5个示范区措施经济效益评价和措施优选得到有效应用,对类似油田油水井措施经济效益综合评价提供了有效方法。

Since 2010,the fine potential-tapping demonstration project has implemented for waterflooded Daqing Oilfield. Comparing with the common waterflooded adjusting measures,the project is characterized by high-proportion oil and water wells and many-kind measures. According to the conventional individual index such as input-output ratio and so on,the economic benefits of different measures and blocks cannot be systematically and comprehensively evaluated. In order to provide the more effective way for the economic benefits' evaluation and optimizing measures of the wells in the project,the comprehensive evaluating method of the measures' economic benefits were researched and determined,including the defined seven single and comprehensive evaluating index. The method was effectively applied in the measures' economic benefits evaluation and simulation optimization of the five demonstrating blocks in Daqing Placanticline peripheral oilfields,and moreover the effective method has provided for the comprehensive evaluation of the simulations' economic benefits in the oil and water wells of those similar oilfields.