钻探工程2024，Vol.51Issue(1)：23-30,8.DOI:10.12143/j.ztgc.2024.01.004
水平井泵送桥塞工具串可通过性研究
Research on the passability of pumping bridge plug tool string for horizontal wells
摘要
Abstract
The combined operation technology of horizontal well pumping bridge plug perforation has been widely used in the development of unconventional oil and gas reservoirs such as shale gas,shale oil and tight oil.In this process,the toolstring with drillable bridge plug and multistage perforating gun is sent to the designated position by hydraulic pumping.Due to the complexity of wellbore trajectory and wellbore environment,the pumping blocked and stuck occasionally occurs.According to the structural characteristics of the pumping bridge plug tool string for horizontal wells,this paper simplifies the tool string,the rigid geometric relationship between the tool string and the wellbore in the curved well section under a certain dogleg degree is analyzed,the method for determining the contact point between the pumping bridge plug tool string and the pipe wall is proposed,the stress bending characteristics in curved well sections are analysed,and the criteria for passability is established.According to the actual cases,the influencing factors including the well trajectory,the largest dogleg degree and the inner diameter of the pipe wall are analyzed,and the optimized scheme of pumping process parameters is given to reduce the occurrence of downhole accidents.关键词
非常规油气/储层开发/水平井/桥塞/工具串/通过性Key words
unconventional oil and gas/reservoir development/horizontal well/bridge plug/tool string/passability分类
石油、天然气工程引用本文复制引用
苏鹏,冯梓波,刘永升,侯子扬,李渭亮..水平井泵送桥塞工具串可通过性研究[J].钻探工程,2024,51(1):23-30,8.基金项目
国家自然科学基金项目"深部岩心钻探钻柱非线性振动影响取心质量的机理研究"(编号:42002307) （编号:42002307）
中石化科研项目"顺北一区5号断裂带提质提速钻完井技术研究"(编号:P20002) （编号:P20002）
