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.
出处
《特种油气藏》
CAS
CSCD
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)
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
Ordovician of Middle Tarim
carbonate reservoir
damage mechanism
damage degree
experimental study
