Pore Characteristics Analysis of Shale from Sichuan Basin,China

摘要：

　　Pore characteristics are significant for shale gas exploration and production.In this paper,the method of field emission scanning electron Microscopes(FE-SEM)was applied to qualitatively describe minerals and pore structures of shale samples.Low pressure nitrogen adsorption-desorption and carbon dioxide adsorption were applied to analyse meso-pores and micro-pores respectively.Inter-particle pores are always associated with rigid mineral grains and intra-particle pores are mainly located in unstable minerals.The BET(Brunauer–Emmett–Teller)surface area of Longmaxi Formation(LMX)is 5.47m2/gr and 16.33m2/gr of Wufeng Formation(WF).N2 and CO2 adsorption shows that the diameter of micro-pores in the LMX and WF formation is approximately 1nm.Most meso-pores in WF formations range from 2nm-20nm,while meso-pores existing in LMX formations range from 2nm-30nm.

关键词： gas shale pore characteristics Sichuan Basin

作者: Ke Hu Helmut Mischo

作者单位: Institute of Mining and Special Civil Engineering,TU Bergakademie Freiberg,Sachsen,Germany

会议类型: 国际会议

会议名称: The 29th SOMP Annual Meeting and Conference on Mines of the Future(SOMP2018)第29届国际矿业教授学会学术年会暨未来矿山国际论坛

会议地点: 北京

会议语种:英文

页码: 147-152

在线出版日期: 2018-07-03（万方平台首次上网日期，不代表论文的发表时间）