贵州安页1井页岩含气量影响因素分析

Analysis of Influential Factors of Gas Content in Shale of Anye No.1 Well in Guizhou

安页1井位于贵州正安县,为探明正安地区页岩含气量及其影响因素特征,在正安地区进行钻井勘探。通过对安页1井的页岩取样岩心进行手标本观察描述,采用现场解析法、测井法等实验,获得安页1井的页岩含气量有机碳含量(TOC)、镜质体反射率等基本参数。研究表明研究区的地层是下志留系龙马溪组-上奥陶系五峰组,其页岩含气量相对于其他地层来说,含气量较高。页岩的总有机碳含量(TOC)、镜质体反射率、地层压力等都对页岩的含气量有重要影响。

Anye No.1 Well is located in Zheng'an County,Guizhou.In order to ascertain the gas content of shale in Zheng'an area and its influencing factors,drilling exploration was conducted in Zheng'an area.Through the observation and description of hand specimens from the shale sampling core of Anye No.1 Well,and using experimental methods such as field analysis and logging methods,the basic parameters of shale gas content(TOC)and vitrinite reflectivity of Anye No.1 Wellare obtained.The studies have shown that the strata in the study area are the Lower Silurian Longmaxi Formation-Upper Ordovician Wufeng Formation,and its shale gas content is higher than other strata.The total organic carbon content(TOC)of shale,vitrinite reflectivity,formation pressure,etc.all have an important influence on the gas content of shale.