摘要
运用优化理论，结合油水两相渗流基本规律，对水驱油田最终采出程度进行了计算。该法运用实验测定的比较准确的相对渗透率曲线端点值，不需要假定油水相对渗透率呈某一特定函数关系，而用计算和实测累积产水量数据建立目标函数，就可以计算最终采出程度。计算表明，随着含水率不断增高，累积产水量的对数与采出程度之间就不再呈直线关系；即使采取一些增产措施，使累积产水量统计数据偏离直线，也能对最终采出程度进行计算，对不同的开发阶段进行措施效果评价。
The final recovery efficiency of water drive is calculated with optimization theory and equations of displacement;In the calculation more precise values of end points of relative per-meability mersured by experments are applied,without the need to assume the ratio of rela-tive permeability of oil and water.The result has shown that the lgwp vs recovery factor doesnot take a linear relationship when water cut reaches a certain value;Even if lgwp vs recoveryfactor is not a straight line because of stimulation treatment,the final factor can still be esti-mated.So the treatment can be evaluated according to the change of the ultimate recovery. At the same time the cures of relative permeability can be determined.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1994年第1期76-82,共7页
Acta Petrolei Sinica
