大宁-吉县地区致密气水平井优快钻井技术探讨  

Discussion on excellent fast drilling technology for tight gas horizontal wells in the Daning-Jixian area

作　　者：张晓明 王静双 杨馥蔓 许军富 ZHANG Xiaoming;WANG Jingshuang;YANG Fuman;XU Junfu(Drilling Technology Research Institute,Shengli Petroleum Engineering Co.,Ltd.,SINOPEC,Dongying 257017,China;Shengli Oilfield Service Corporation,SINOPEC,Dongying 257017,China)

机构地区：[1]中石化胜利石油工程有限公司钻井工艺研究院,山东东营257017 [2]中石化胜利石油工程有限公司,山东东营257017

出　　处：《复杂油气藏》2022年第4期91-97,共7页Complex Hydrocarbon Reservoirs

摘　　要：大宁-吉县地区致密气资源丰富,但煤层裂缝发育,钻井机械钻速低,地层研磨性强,井壁稳定性差,地层承压能力低。为实现大宁-吉县地区长水平段水平井钻井提速提效,避免复杂情况发生,针对水平井钻井存在的技术问题,基于现场实钻情况,对井身结构优化、高效钻头优选及地质导向钻井等关键技术进行分析,同时对井身结构、目的层导向工具和三开井眼尺寸问题进行探讨。形成的钻井配套技术为该地区及类似地区致密气水平井钻井提供了借鉴。The Daning-Jixian area is rich in tight gas resources,but the coal seam fractures are developed,the drilling mechanical drilling speed is low,the formation is abrasive,the well wall stability is poor,and the formation pressure-bearing capacity is low. To realize the speed and efficiency of horizontal well drilling in the long horizontal section of the Daning-Jixian area and avoid complicated situations,it was analyzed key technologies such as optimization of well body structure,selection of high-efficiency bit,and geological guidance drilling based on the actual drilling situation on site,and also discussed the problems of well body structure,target layer guidance tools and triple-opening borehole size for the technical problems existing in horizontal well drilling. The developed drilling supporting technology provides a reference for the drilling of tight gas horizontal wells in the region and similar areas.

关 键 词：水平井 地质导向 井身结构 高效钻头 钻井液 

分 类 号：TE243[石油与天然气工程—油气井工程]