塔中奥陶系碳酸盐岩储层敏感性实验研究  

Experimental study of sensitivity of Ordovician carbonate formation in Middle Tarim

作　　者：李天太[1] 王清华[2] 张喜凤[2] 康有新[2] 张斌[3] 

机构地区：[1]石油大学石油与天然气工程学院,北京昌平102249 [2]西安石油大学石油工程学院,陕西西安710065 [3]中油塔里木油田分公司勘探事业部,新疆库尔勒841000

出　　处：《特种油气藏》2005年第4期79-82,i0013,共5页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金重点资助项目部分研究成果(课题编号:50234030)

摘　　要：由于塔中奥陶系碳酸盐岩储层特殊的地质特征和较强的敏感性,在勘探开发过程中对造成储层一定程度的伤害,影响了油井的正常生产。从分析储层地质特征入手,通过岩心敏感性流动实验,研究了储层潜在伤害因素、伤害机理及伤害程度。研究结果表明:塔中奥陶系碳酸盐岩储层具有强速敏、强水敏及盐敏、强压敏、弱-中强碱敏以及无酸敏性特征。The Ordovician carbonate reservoir in Middle Tarim has been damaged sometimes during exploration and development process because of its special geological characteristics and sensitivity, thus affecting normal production of oil wells. Through analysis of geological characteristics and core flow test for sensitivity, the factors, mechanism and degree of potential reservoir damage are studied. The result shows that this reservoir is strongly velocity - sensitive,strongly water- and salt - sensitive, strongly pressure - sensitive, weak - medium strong alkali - sensitive, and non acid - sensitive.

关 键 词：塔中奥陶系 碳酸盐岩储层 伤害机理 伤害程度 实验研究 

分 类 号：TE258[石油与天然气工程—油气井工程]