石油实验地质Issue(5)：535-540,6.DOI:10.11781/sysydz201505535
中国海陆交互相页岩气研究现状与展望
Research status and prospects for marine-continental shale gases in China
摘要
Abstract
Shale gas has become one of the hot spots of unconventional natural gas exploration. At present, domestic and overseas research for shale gases is carried out mostly on marine formations; however, research for marine⁃continental shale gases is still at the initial stage. In China, marine⁃continental shales rich in organic matter are mainly distributed in the Benxi, Taiyuan and Shanxi formations of Carboniferous and Permian age in the Ordos, Qinshui and southern North China basins in the north, and the Longtan Formation of Permian age in the southwestern Sichuan Basin, the western Guizhou province, and the central Hunan and southern Hunan depressions in the south. This paper summarizes present research results for marine⁃continental shale gases in China, and shows that the kerogen types of marine⁃continental shales are mainly II and III. Except for the south and east of the southern North China Basin, organic matter maturity is generally high, commonly greater than 1.5%Ro and is in the high mature and over⁃mature stages. The lithofacies of marine⁃continental shales change rapidly and the thickness of a single layer is typically thin, often interbedded with coals, tight sandstones, and even limestones. As a result, separately developing shale gases from such thin layers will face a great challenge in development costs and technology. The joint develop⁃ment of shale gases, tight gases and coal bed gases from multiple target layers will be an effective new strategy.关键词
海陆交互相/研究现状/页岩气/中国Key words
marine-continental facies/research status/shale gas/China分类
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郭少斌,付娟娟,高丹,李贺洋,黄家国..中国海陆交互相页岩气研究现状与展望[J].石油实验地质,2015,(5):535-540,6.基金项目
国土资源部2012年度“全国油气资源战略选区调查与评价”专项（2009QYXQ15－07－05）和中国地质调查局“沁水盆地及周缘页岩气资源调查评价”专项（2014－258）部分成果资助。 （）
