【作者】 张金川； 聂海宽； 薛会； 卞昌蓉； 王艳芳；

【Author】 ZHNAG Jin-chuan, NIE Hai-kuan, XUE Hui, BIAN Chang-rong, WANG Yan-fang (Energy School, China University of Geosciences, Beijing 100083, China)

【机构】 中国地质大学能源学院；

【摘要】 以活塞式运聚为成藏机理特点的根缘气和以吸附特点为富集机理的页岩气是中国天然气勘探发展的2个重要领域。以吸附及游离方式作为存在主体的页岩气具有明显的抗破坏能力,在中国具有广泛的发育基础,尤其在构造抬升运动强烈的扬子地台区,黑色高碳页岩广泛发育,根据成藏机理特点及与国外页岩气类比,它们有望成为中国南方油气勘探进一步发展的重要突破口。根缘气保存稳定性较差,主要发育在盆地斜坡或凹陷深部,使用单井可以对它们的存在进行快速识别。根缘气主要在鄂尔多斯、四川、塔里木、准噶尔、吐哈等中、西部地区盆地中分布,是中国天然气储、产量增加的重要方面。根缘气和页岩气是中国天然气勘探开发具有现实意义的重要内容。更多还原

【Abstract】 Unconventional natural gas is important for the exploration prospects in China. Shale gas occurs in absorbed and free states, being not prone to be destroyed by tectonic movements. Black shale exists widely in China, especially in Yangtzi platform that suffered from strongly tectonic movements. Shale in Yangtzi platform is featured by high organic carbon that is potentially the breakthrough for hydrocarbon exploration in South China. Source-contacting gas is characterized by piston-typed migration and accumulation, which can be identified by single-well recognition technique. Source-contacting gas is demonstrated to be valuable in midwest China, such as Ordos, Sichuan, Tarim, Junggar, and Turpan-Hami basins, which are essential to increase the reserve and production of natural gas in China. Shale gas and source-contacting gas are two practically kinds of beneficial gas exploration in China.更多还原