摘要
为提高煤层气资源开发利用效率,针对常规远端伽马和EMWD仪器判层不及时,薄煤层分辨率低,井眼轨迹易出层等难题,提出一种基于近钻头地质导向的高效钻进技术。以山西省沁水盆地某煤层气区块为工程实例,对区块内布置的多口水平井施工情况、应用特点及效果等进行阐述,总结出一套可推广、可复制的煤层气水平井高效钻进技术工艺,包括采用柔性钻具组合、选择合理钻进参数、结合井眼轨迹精细化控制技术等,为煤层气高效开发利用提供技术参考。
In order to improve the efficiency of coalbed methane resource development and utilization,a high‑efficiency drilling technology based on near bit geological guidance is proposed to address the problems of delayed layer identification by conventional remote gamma and EMWD instruments,low resolution of thin coal seams,and easy formation of wellbore trajectories.Taking a coalbed methane block in Qinshui Basin,Shanxi Province as an engineering example,the construction situation,application characteristics,and effects of multiple horizontal wells arranged in the block are elaborated,and a set of promotable and effective methods is summarized.The replicable high‑efficiency drilling technology for horizontal wells of coalbed methane,including the use of flexible drilling tool combinations,the selection of reasonable drilling parameters,and the combination of fine control technology for wellbore trajectory,provides technical reference for the efficient development and utilization of coalbed methane.
作者
贺云超
翁炜
冯美贵
徐军军
郭强
吴烁
蒋睿
HE Yunchao;WENG Wei;FENG Meigui;XU Junjun;GUO Qiang;WU Shuo;JIANG Rui(Beijing Exploration Engineering Research Institute,Beijing 100083,China)
出处
《钻探工程》
2023年第S01期345-350,共6页
Drilling Engineering
关键词
煤层气
水平井
地质导向
近钻头仪器
轨迹控制
方位伽马
柔性钻具组合
coalbed methane
horizontal well
geological guidance
near drill bit instruments
trajectory control
azimuth gamma
flexible drilling tool assembly
