School of Energy,China University of Geosciences(Bejing) School of Earth Science and Resources,China University
of Geosciences(eiing)

为了对准噶尔盆地南缘中段地区煤层气成藏条件开展系统性研究,通过对该区主力煤层(厚度大于5 m)的含气性、埋深、顶板封盖以及水文地质条件进行研究,结果表明:评价区具备良好的煤层气成藏富集条件。此外,综合评价区构造与水文地质条件提出了宽缓褶皱、北倾单斜以及叠瓦状扇式构造3种煤层气富集成藏模式,并对这3种成藏模式的煤层气富集成藏过程进行分析,以期为相关科研单位优选煤层气勘探目标区提供依据。

In order to systematic study on reservoir formation conditions of coalbed methane in the middle of Southern Junggar Basin,a study was conducted on gas b earing,buried depth,roof sealing and hydrology geological conditions of major seams( with thickness over 5m) in the area. The results showed that evaluation area would h ave excellent reservoir formation enrichment condition of coalbed methane.In addition,in combined with structure and hydrogeological conditions of evaluation area,three C oalbed methane enrichment models with widely spaced fold,northward tilted monocline and imbricated fan type structure were provided. An analysis was conducted on coal bed methane enrichment formation process of three reservoir formation models in order to provide the basis to optimize exploration target zone of coalbed methane for rela ted research and development units.