页岩气水基钻井液抑制剂的抑制性能研究  

Study on Inhibition Performance of Shale Gas Water-based Drilling Fluid Inhibitors

作　　者：王正 谢刚[2] 邓明毅[2] 苏俊霖[2] 谢俊妮 邓顺杰 龚睿 段强 WANG Zheng;XIE Gang;DENG Ming-yi;SU Jun-lin;XIE Jun-ni;DENG Shun-jie;GONG Rui;DUAN Qiang(College of Petroleum Engineering,Southwest Petroleum University,Sichuan Chengdu 610500;State Key Laboratory of Oil ＆ Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Sichuan Chengdu 610500;College of Chemistry and Chemical Engineering,Southwest PetroleumUniversity,Sichuan Chengdu 610500,China)

机构地区：[1]西南石油大学石油与天然气工程学院,四川成都610500 [2]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [3]西南石油大学化学化工学院,四川成都610500

出　　处：《广州化工》2018年第10期58-59,89,共3页GuangZhou Chemical Industry

基　　金：中国石油天然气集团公司科学研究与技术开发项目"井筒工作液新材料新体系基础研究"(No:2016A-3903);2016年国家级大学生创新创业训练计划项目"小分子聚胺抑制剂的合成;表征及性能评价"(No:201610615021)

摘　　要：页岩气已经成为我国非常重要的能源之一。页岩地层黏土矿物含量高,页岩气水平井水平段长,钻井液与地层接触的时间增加,页岩水化更严重,井壁失稳更加突出。页岩气开发过程中钻井液与地层容易发生水化作用,使地层水化膨胀,影响井壁稳定性。因此水基钻井液必须首先作到能完全抑制黏土矿物的水化。通过流变性、滤失量、线性膨胀率对比研究了三种抑制剂。优选出了最佳抑制剂AT-JM,线性膨胀率最低。这为后面页岩气水基钻井液体系的优选提供了非常重要的参考。Shale gas has become one of the most important energy sources in China. The shale formation has high clay mineral content,longer horizontal section of the shale gas horizontal well,which results in the contact time of drilling fluid and formation increases. And the shale hydration becomes more serious and borehole instability becomes more prominent. Water-based drilling fluid can completely inhibit clay minerals hydration in the first place. Three kinds of inhibitors were studied by comparison of rheology,filtration rate and linear expansion rate. The best inhibitor AT-JM with the lowest linear expansion rate was selected. This provided a very important reference for the optimization of the later shale gas water-based drilling fluid system.

关 键 词：页岩气 水基钻井液 抑制剂 性能评价 

分 类 号：TE24[石油与天然气工程—油气井工程]