水驱储量控制程度计算方法综述及新方法研究

Calculation methods review of controlling degree in water drive reserves and new method research

水驱储量控制程度是水驱开发油田的重要指标,准确合理的计算出不同类型油藏的水驱储量控制程度,对油藏的开发调整具有重大的指导意义,目前该指标的计算方法已不能满足实际要求。在对以往方法深入调研及解剖的基础上,总结了各种方法的优缺点,结合井网密度法和分油砂体法提出了一套新的更符合实际的水驱储量控制程度计算方法。实际油田的应用结果表明,该方法计算的水驱储量控制程度更符合实际油田认识。

The controlling degree in water drive reserves is an important index of oilfield flooding development.Therefore,the accurate and reasonable calculation of the controlling degree in water drive reserves in different types of reservoirs can provide a good guidance for the development and adjustment of oil reservoirs.However,the calculation methods at present could not satisfy the actual requirements.On the basis of in-depth research and dissection of the previous methods,the advantages and disadvantages of various methods were summarized.Combined with the well density method and the oil sand body method,a new actual method was put forward to calculate the controlling degree in water drive reserves.Actual field application results indicated the reserves controlling degree calculated by the new method was in more accordance with the actual oil field understandings.