摘要
煤炭地下气化(简称ISC)是煤在地下的受控燃烧和气化过程,最终通过煤的热化学作用产生可燃气体。从关键设备到施工工艺详细描述了双水平分支水平连通井技术,并以2019年内蒙古某矿区煤炭地下气化工程为例,分析了此技术所具有的优势。水平连通井是实现煤炭气化的主要方向,该技术的成功实施,不仅丰富了完井井型,而且对煤炭地下气化具有重大意义。
The undergroundcoalgasificationor in-situ coal conversion(ISC)is a process of underground coal controlled combustion and gasification,finally through coal thermochemical action produced combustible gases.The paper has described the dual horizontal branching connected well technology from key equipment to operation technology in detail.Taking an ISC project in an Inner Mongolia coal mining area 2019 as example analyzed predominance the technology has had.Horizontal connected well is the main orientation to realize ISC,the successful implementation of the technology not only has enriched completion well-types,and had significance on underground coal gasification.
作者
张才
郭明
Zhang Cai;Guo Ming(China National Administration of Coal Geology,Beijing 100038;Beijing Dadi Hitech Geological Exploration Co.Ltd.,Beijing 100040)
出处
《中国煤炭地质》
2022年第2期54-58,共5页
Coal Geology of China
关键词
双水平分支井
连通井
磁导向技术
轨迹精确控制
煤炭地下气化
dual horizontal branching well
connected well
magnetic guidance technology
precise trajectory control
underground coal gasification
