酯基钻井液页岩抑制性研究  

Inhibitive ability of ester-based drilling fluid

作　　者：任丽荣[1] 张琰[1] 

机构地区：[1]石油大学

出　　处：《钻井液与完井液》2001年第3期12-14,共3页Drilling Fluid & Completion Fluid

摘　　要：室内评价了酯基钻井液的页岩抑制性.并对基液类型与页岩抑制性之间的关系进行了探讨。研究结果表明.酯基钻井液的页岩抑制性介于柴油基钻井液和水基钻井液之间.比前者弱.比后者强;基液类型与页岩抑制性之间存在一定的关系,提出用偶极矩这一化学尺度将基液划分为强、中、弱3种具有不同页岩抑制性的类型。In this paper, the inhibitive ability of ester-based drilling fluid is evaluated in lab, and relation between the type of base fluid and shale inhibitive ability is investigated. Results show that the shale inhibitive ability of ester-based drilling fluid is between those of diesel-oil-based and water-based drilling fluid, and certain relation exist between the type of base fluid and shale inhibitive ability of drilling fluid. A new viewpoint is proposed that base fluids can be divided into 3 types with different inhibitive ability by using dipoles.

关 键 词：合成基钻井液 酯基钻井液 基液 页岩 抑制性 偶极矩 

分 类 号：TE254.1[石油与天然气工程—油气井工程]