复杂小断块油藏不同开发方式室内评价研究  

Laboratory investigation on different development methods for small complex fault block reservoirs

作　　者：李立健[1] 孙雷[1] 李华彦 杨彬[1] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]中国石油华北油田分公司采油工程研究院,河北任丘062550

出　　处：《复杂油气藏》2015年第2期65-68,共4页Complex Hydrocarbon Reservoirs

摘　　要：南部F油藏的储层物性为带有倾角(18°)的低孔低渗挥发油藏,平均孔隙度为19.4%,平均渗透率为32.85×10-3μm2,油藏周围有丰富的CO2气源。为了研究该油藏注CO2可行性,开展了不同开采方式(衰竭,水驱,CO2驱,气水交替驱)长岩心驱替实验,并通过数值模拟研究进一步验证长岩心驱替实验结果。F reservoir in southern China is a volatile reservoir with low porosity and permeability and a dip angle of 18°,in which the average porosity and permeability are 19.4% and 32.85×10 ^-3 μm^2 ,respectively.The reservoir is sur-rounded by rich CO2 source.In order to study on the feasibility of CO2 injection for enhanced oil recovery,long -core flooding experiments have been conducted on different development scenarios including depletion development,water flood-ing,CO2 flooding,CO2 alternating water flooding.And the results have been further verified by numerical simulation.

关 键 词：低渗透油藏 CO2膨胀实验 驱替实验 物理模拟 数值模拟 

分 类 号：TE135[石油与天然气工程—油气勘探]