The oldest shale gas reservoirs in southern margin of Huangling uplift,Yichang,Hubei,China

• 作者: An Liu Hai Li Sheng-yuan Luo Xiao-hong Chen
• 来源期刊: 中国地质（英文）
• 年，卷（期）: 2018,（1）
• 所属期刊栏目: Research Advances
• 页码范围: 158-159
• 页数: 2页
• 语种: 中文
• DOI: 10.31035/cg2018013

摘要

1.Objective Large-scale commercial production of shale gas started in Fuling,Changning and Weiyuan areas of the Sichuan Basin (Zou et al.,2016) since 2010. The most notable shale gas suc-cess is the Longmaxi organic rich Shale in Jiaoshiba field,Sichuan Basin. The Yichang slope is located in the north of middle Yangtze region. This eastward dipping slope is a new prospective area for shale gas exploration in recent 5 years. The gas-bearing shale system in the Yichang slope is under-lain by the granite basement. The outcrop is exposed in the center of the Huangling Anticline. Early Paleozoic conven-tional natural gas was explored in Weiyuan and Gaoshiti in the north Sichuan Basin. The Precambrian Doushantuo shale in Yichang area is another prolific shale gas exploration tar-get. The Doushantuo shale gas in Yichang slope is the earli-est marine shale gas resource in the world,whose source rock was deposited between 635 and 551 Ma ago (Condon et al.,2005). Although the Yiye-1 well is finished recently,it is a significant innovation in shale gas exploration. The explora-tion of Doushantuo shale gas increases the unconventional hy-drocarbon resources from Sichuan Basin to its adjacent areas (i.e. the Middle Yangtze Platform).