湖南保靖下志留统龙马溪组页岩气成藏地质条件评价  

RESERVOIR-FORMING GONDITIONS OF SHALE-GAS RESERVOIR IN LOWER L SILURIAN ONGMAXI FORMATION,BAOJING AREA,HUNAN PROVINCE

作　　者：张志平[1] 程礼军[1] 刘俊峰 汪威 曾祥亮 

机构地区：[1]国土资源部页岩气资源勘查重点实验室.重庆地质矿产研究院 [2]重庆市页岩气资源与勘查工程技术研究中心.重庆地质矿产研究院 [3]油气资源与探测国家重点实验室.重庆页岩气研究中心

出　　处：《天然气勘探与开发》2013年第3期4-6,17,共3页Natural Gas Exploration and Development

摘　　要：通过对湖南保靖地区下志留统龙马溪组广泛发育的一套滞留相暗色页岩厚度、埋深,有机碳、成熟度、有机质类型等有机地化指标以及孔隙度、渗透率、裂缝等储层物性参数、运聚特征和保存条件进行研究分析,揭示了该区下志留统龙马溪组暗色页岩具有较好的页岩气成藏地质条件和勘探潜力。参照国内外页岩气有利选区标准,并结合该区实际情况,优选了页岩气有利勘探区。In Baojing area of Hunan Province,a set of stagnant-facies dark shale is widely developed in Lower Silurian Longmaxi Formation.Its features are analyzed,including organic geochemical indicators(thickness,burial depth,organic carbon,maturity,and organic-matter type),reservoir's physical properties(porosity,permeability,and fracture),and migration,accumulation and preservation conditions.Results show that the dark shale has a better exploration potential with good shale-gas reservoir-forming conditions.In addition,referring to many foreign criterions to select favorable shale-gas blocks,some favorable shale-gas exploration blocks in this area are optimized based on their own characteristics.

关 键 词：湖南保靖 龙马溪组 选区标准 概率体积法 

分 类 号：P618.13[天文地球—矿床学]