多级划眼技术提高固井质量研究与应用  

RESEARCH AND APPLICATION OF MULTISTAGE REAMING TECHNIQUE TO IMPROVE CEMENTING QUALITY

作　　者：王建龙 柳鹤 张雯琼 王瑶 冯冠雄 郭瑞 WANG Jianlong;LIU He;ZHANG Wenqiong;WANG Yao;FENG Guanxiong;GUO Rui(Engineering Technology Research Institute,CNPC Bohai Drilling Company Ltd.,TianJin 300450,China;NO.1 Drilling Engineering Company,CNPC BHDC,TianJin 300280,China;Sichuan Shale Gas Project Management Department,CNPC BHDC,Yibin,Sichuan 644000,China;Directional Drilling Service Co.,CNPC BHDC,Tianjin 300280,China)

机构地区：[1]中石油集团渤海钻探工程技术研究院,天津市滨海新区300450 [2]中国石油集团渤海钻探第一钻井公司 [3]中国石油集团渤海钻探页岩气项目管理部 [4]中国石油集团定向井分公司

出　　处：《钻采工艺》2019年第6期32-33,I0002,I0003,共4页Drilling & Production Technology

基　　金：中国石油天然气集团公司科学研究与技术开发项目“滩海大平台丛式井组钻井防碰绕障关键技术研究与应用”(编号:2019D-4214)资助

摘　　要：大港油田南部油区为复杂断块油田,随着注水开发的不断深入,目前处于高含水期,固井质量优质率仅55%左右。分析认为,厚滤饼或岩屑床的存在,影响了二界面的固井质量。因此,文章设计了专用井眼清洁工具,提出了多级划眼清洁井眼技术,并阐述了原理和技术措施。该技术在大港油田南部油区进行了4口井先导试验,固井质量均为优质。该研究为提高二界面固井质量提供了一种可行有效的方法。The oil field in the south of Dagang Oilfield is a complex fault block oil field.With the waterflooding development deepened,the quality of cementing quality is only about 55%.Analysis shows the existence of thick mud cake or cuttings bed,affecting the quality of the two interface cementing.Therefore,in this paper a multi-stage blind eye cleaning technology presented,the technical principle described,a special hole cleaning tool designed,and four wells pilot test carried out,the cementing quality were all high quality.The research in this paper provides a feasible and effective method to improve the quality of two interface cementing.

关 键 词：多级划眼 井眼清洁工具 滤饼 固井二界面 固井质量 

分 类 号：TE3[石油与天然气工程—油气田开发工程]