川南页岩气区块固体酸解卡液溶蚀率的室内研究  

Research on Dissolution Rate of Solid-acid Solution in Shale-gas Block in Southern Sichuan

作　　者：张松 汪伟 郑建昆[1] 陈云富 兰太华 ZHANG Song;WANG Wei;ZHENG Jian-kun;CHEN Yun-fu;LAN Tai-hua(CCDC Drilling Fluid Technical Services Co.,Ltd.,Chengdu 610051,China;CCDC Geological Exploration&Development Research Institute,Chengdu 610051,China)

机构地区：[1]川庆钻探工程有限公司钻井液技术服务公司,四川成都610051 [2]川庆钻探工程有限公司地质勘探开发研究院,四川成都610051

出　　处：《化工管理》2023年第19期10-12,共3页Chemical Engineering Management

基　　金：中石油川庆钻探工程公司攻关项目“高密度条件下高效解卡液研发”(CQ2022B-47-1-3)资助。

摘　　要：川南页岩气水基钻井液井段易发生的卡钻中泡酸解卡成功率较高,而液体强酸属于危化品,运输和使用存在限制条件,增加泡酸解卡的时间。通过对复合酸溶蚀率的性能评价,其18%浓度溶液对灰岩或页岩的溶蚀率能够达到相同浓度盐酸溶液的75%以上,能够满足现场泡酸解卡作业的性能要求,减少卡钻处理时间。The success unblocking rate of acidolysis is high in the sticking in the shale gas water-based drilling fluid well section in southern Sichuan,while the strong liquid acid is a dangerous chemical.There are restrictions on transportation and use,which increases the loss time of acidolysis.Through the performance evaluation of the dissolution rate of the composite acid,the dissolution rate of the 18%solution on limestone or shale can reach more than 75%of the hydrochloric acid solution of the same concentration,which can meet the performance requirements of the on-site acid pickling operation and reduce the treatment time of the stuck drill.

关 键 词：川南页岩气 固体酸 解卡 溶蚀率 

分 类 号：TE377[石油与天然气工程—油气田开发工程]