摘要
在特低渗储层的钻井、压裂等施工过程中，如果注入井液体配伍性不好，将严重影响储层产量。为了减少开发过程中对陕北特低渗储层的损害程度，对其长武区块延长组特低渗储层进行了敏感性评价（包括速敏性、水敏性、盐敏性、酸敏性和碱敏性评价）实验。研究结果表明，延长组长武1井表现为强速敏、盐敏和酸敏，水敏性为中等；早胜3井的速敏性和水敏性为中等偏强，盐敏性和碱敏性表现为中等，酸敏性较弱。采用恒压方法比较适合进行致密储层的敏感性实验，该项实验研究对指导延长组储层的开发具有重要意义。
In the course of the drilling, reservoir will be seriously influenced if fracturing etc. of extra-low permeability reservoir, the productivity of the the compatibility of injected fluids is not perfect. In order to reduce the damage degree to developed extra-low permeability reservoirs in North Shanxi, the sensitivity evaluation experiments （including velocity, water, salt, acid and alkaline sensitivities ） were conducted for Yanchang Formation in Changwu Block. Study results show that the velocity, salt and acid sensitivities are strong and the water sensitivity is mediate in Well Changwu-1 ; In Well Zaosheng-3 the velocity and water sensitivities are mediate and stronger, the salt and alkaline sensitivities are mediate, and the acid one is poorer. Constant pressure method is more suitable to adopt to make this kind of sensitivity experiment for the tight reservoir, and furthermore the above studies possess important significance for guiding development of Yanchang Formation.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2009年第4期76-79,共4页
Petroleum Geology & Oilfield Development in Daqing
基金
基金项目：国家“973”重点基金研究项目（2001CB209104）资助.
关键词
特低渗透储层
实验方法
敏感性
渗透率
extra-low permeability reservoir
experimental method
sensitivity
permeability
作者简介
刘清华，女，1981年生，在读硕士，从事采油工程理论与技术研究。E—mail：liuqh125@sohu．com.
