摘要
桂中-南盘江地区的浅部地层裂隙、溶洞发育,破碎带多,井漏、井垮严重,泥浆护壁钻进成孔难度较大。针对该类地层,首次将跟管钻进技术引入大口径页岩气井钻探——黔水地1井导管段钻探,有效地解决了该井导管段的成孔难等问题。并通过系统总结该技术在黔水地1井工程施工中的实际应用情况,为今后类似工程提供了宝贵经验和建议。
There are a lot of fractures,karst caves and fractures in the shallow strata in the GuizhongNanpanjiang region,thus causing serious lost circulation and borehole wall collapse.It was difficult for hole drilling with conventional mud protection.The simultaneous casing drilling process has been applied to large diameter shale gas well drilling for the first time,which effectively solved the drilling problem with the conductor hole.The practical application of the process in the Qianshuidi1 well is systematically summarized and can serve as valuable reference for similar projects in the future.
作者
郭军
王超技
李岩
苑坤
王文彬
GUO Jun;WANG Chaoji;LI Yan;YUAN Kun;WANG Wenbin(The Coal Geological Exploration Institute of Hunan Province, Changsha Hunan 410014, China;Coal Geological Bureau in Anhui Province in The Third Exploration Team, Suzhou Anhui 234000, China;Oil and Gas Survey, CGS, Beijing 100083, China)
出处
《探矿工程（岩土钻掘工程）》
2020年第5期22-26,共5页
Exploration Engineering:Rock & Soil Drilling and Tunneling
基金
中国地质调查局地质调查项目“桂中—南盘江页岩气地质调查”(编号:DD20190088)
湖南省自然资源科技计划项目“复杂地质条件区页岩气深井钻探施工技术研究”。
关键词
跟管钻进
气动潜孔锤
大口径页岩气井
复杂地层
桂中-南盘江地区
成孔率
simultaneous casing drilling
pneumatic DTH hammer
large bore shale gas well
complex formation
GuizhongNanpanjiang region
well completion rate
