摘要
对温米油田采液、采油指数变化规律及影响因素进行了分析、研究,分析了原油粘度和启动压力梯度对采液、采油指数随含水率变化规律的影响,对不同微相的采液指数随生产压差变化规律进行了研究后指出,随着生产压差的增大,河道砂的采液指数比边缘砂采液指数下降快一些;储集层渗透性越差,由压力下降引起的渗透率就越严重;采液、采油指数的变化受含水率变化影响较大;地层脱气可导致采液、采油指数下降。这对油田进行提液采油有一定的指导意义。
This paper analyzed the variation of the fluid productivity index and oil productivity index in Wenmi oilfield and their affected factors in which include the effects of crude viscosity and starting pressure gradient on these two indexes with changes of water-cut.The studies of the variation of the fluid productivity index for different microfa-cies with increasing production differential pressure show that fluid productivity index of channel sand decreases faster than that of edge sand with the increasement of production pressure differences;the poorer the percolation property of reservoir,the more serious impermeability caused pressure declines;the effect of water-cut on fluid productivity index and productivity index is greater;the decrease of fluid productivity index and productivity index occurs due to formation degassing.The re sults will be as a guide for fluid-extracting oil recovery in Wenmi oilfield.
出处
《新疆石油地质》
CAS
CSCD
2002年第1期49-51,共3页
Xinjiang Petroleum Geology
关键词
温米油田
采液指数
采油指数
启动压力梯度
生产压差
渗透率
储集层
Wenmi oilfield
fluid productivity index
productivity index
starting pressure gradient
production differential pressure
