蜀南双河龙马溪组页岩孔隙结构的分形特征  

Fractal Characteristics of Shale Pore Structure of Longmaxi Formation in Shuanghe Area in Southern Sichuan

作　　者：胡琳[1] 朱炎铭[1,2] 陈尚斌[1,2] 杜志立 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221116 [2]中国矿业大学煤层气资源与成藏过程教育部重点实验室,江苏徐州221116 [3]中煤集团平朔矿区,山西朔州036006

出　　处：《新疆石油地质》2013年第1期79-82,共4页Xinjiang Petroleum Geology

基　　金：国家973项目(2012CB214702)

摘　　要：基于分形理论和方法,以页岩样品压汞数据为基础,对页岩孔隙结构进行定量化研究,计算了分维值D1和D2,探讨了页岩孔隙结构特征。根据页岩孔隙分形曲线的特征,将蜀南双河地区下志留统龙马溪组页岩孔隙结构划分为渗透孔隙、凝聚-吸附孔隙和吸附孔隙3大类,为页岩纳米级孔隙以及页岩气的赋存和运移机理研究提供新方法。Based on fractal theory and methods and the mercury injection data of shale samples from the Longmaxi formation of the Lower Silurian in Shuanghe area in Southern Sichuan, the quantitative research of the pore structure features is made, giving the fractal dimension D, and D2. According to the fractal curves, the pore structure of shale of the Longmaxi formation is divided into three types： seepage pore, coagulating-absorption pore and absorption pore. It provides support for researches of nanoscale pore structure of shale and occurrence and migration mechanism of shale gas in this area.

关 键 词：蜀南地区 页岩 孔隙结构 分形维数 渗流孔隙 吸附孔隙 

分 类 号：TE112.23[石油与天然气工程—油气勘探]