| 川东石炭系气藏的封盖条件研究 |
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| 引用本文： | 刘树根,徐国盛,梁卫,张高信,龙成吉,王泽远. 川东石炭系气藏的封盖条件研究[J]. 成都理工大学学报(自然科学版), 1996, 0(3) |
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| 作者姓名： | 刘树根 徐国盛 梁卫 张高信 龙成吉 王泽远 |
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| 作者单位： | 成都理工学院“油气藏地质及开发工程”国家重点实验室，四川石油管理局川东开发公司 |
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| 摘 要： | 川东地区石炭系气藏的直接盖层、浓度盖层、区域性盖层和物性盖层均为上覆下二叠统梁山组。梁山组能够封闭的石炭系气藏含气高度最大值在７３．３１～２３６．２１ｍ之间，远不能封闭现今石炭系气藏的含气高度。石炭系气藏的区域性间接盖层为三叠系嘉陵江组二段（Ｔ１ｊ２）至下二叠统栖霞组（Ｐ１ｑ）。间接盖层能够封闭的石炭系气藏的气柱高度为８５３．１～２２２３．４ｍ。间接盖层的封盖机制为压力封闭。
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| 关 键 词： | 封盖条件，天然气藏，异常高压，突破压力 |
THE SEAL CONDITION OF CARBONIFEROUS GAS POOLS IN EASTERN SICHUAN BASIN |
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| Liu Shugen, Xu Guosheng, Liang Wei. THE SEAL CONDITION OF CARBONIFEROUS GAS POOLS IN EASTERN SICHUAN BASIN[J]. Journal of Chengdu University of Technology: Sci & Technol Ed, 1996, 0(3) |
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| Authors: | Liu Shugen Xu Guosheng Liang Wei |
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| Affiliation: | Liu Shugen; Xu Guosheng; Liang Wei (Chengdu Institute of Technology)Zhang Gaoxin;Long Chengji; Wang Zeyuan (Chuandong Development Company Of Sichuan Petroleum Administration) |
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| Abstract: | The direct, concentrational, regional and physical caprocks of Carboniferous gas pools are the Lower Permian Liangshan Formation in eastern Sichuan Basin. The maxium gas heights of Carboniferous gas pools capped by the Liangshan Formation is from 73. 31 m to 236. 21 m,which is much less than the actual gas heights of the Carbonfierous gas pools. The regional indirect caprocks of Carboniferous gas pools are from the Triassic Jialingjiang Formation to the Lower Permian Qixia Formation. The gas height of Carboniferous gas pools capped by the indirect caprocks is from 853.1 m to 2223. 4 m. The seal mechanism of the indirect caprocks is pressure seal. |
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| Keywords: | seal condition gas pool abnormal pressure breakthrough pressure |
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