低渗强水敏储层单相油渗流特征实验研究  

Experiment Research on Single-phase Oil Seepage Characteristics of Low Permeability and High Water Sensitivity Reservoirs

作　　者：张洪艳[1] 臧士宾[2] 任晓娟[1] 张新勃 于娟[1] 王理国[1] 丁建立[4] 

机构地区：[1]西安石油大学石油工程学院,陕西西安710065 [2]青海油田公司勘探开发研究院,甘肃敦煌736202 [3]延长油田股份有限公司瓦窑堡采油厂,陕西延安717300 [4]中国石化中原油田分公司采油一厂,河南濮阳457171

出　　处：《辽宁化工》2013年第10期1173-1175,共3页Liaoning Chemical Industry

摘　　要：对W油田N21超低渗储层岩心进行单相油渗流实验研究,结果表明流体在低速渗流时,非线性渗流特征明显,存在启动压力梯度,且水敏性低渗储层的启动压力梯度明显更高。W油田N21水敏性低渗储层原油渗流能力差,一般油相渗透率不大于气测渗透率的2%。The core single-phase oil flow experiments about N21 ultra-low permeability reservoir of W oil tielo were cameo out. The results show that the fluid under low speed percolation has obvious nonlinear seepage characteristics, there is start-up pressure gradient, and low permeability reservoir with water sensitivity has significantly higher start-up pressure gradient. N21 water sensitivity low permeability oil reservoir has poor percolation capacity; the oil phase permeability is not more than 2% of gas logging permeability.

关 键 词：超低渗透储层 渗流规律 启动压力梯度 实验研究 

分 类 号：TE122[石油与天然气工程—油气勘探]