Petroleum geological conditions and exploration potential of the Permian Qixia Formation in the middle segment of Western Depression, Sichuan Basin
In recent years, great breakthroughs have been achieved for the exploration in the Permian Qixia Formation of the Shuangyushi structure in the north and the Pingluoba structure in the south of the Western Depression of the Sichuan Basin (Chuanxi Depression), while the exploration of the same formati...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Petroleum Geology and Experiment
2022-11-01
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| Series: | Shiyou shiyan dizhi |
| Subjects: | |
| Online Access: | https://www.sysydz.net/cn/article/doi/10.11781/sysydz202206959 |
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| author | Zhuang ZHANG Chengpeng SU Xiaobo SONG Guoshan SHI Renfu WANG Suhua LI Xia DONG Yongliang HU |
| author_facet | Zhuang ZHANG Chengpeng SU Xiaobo SONG Guoshan SHI Renfu WANG Suhua LI Xia DONG Yongliang HU |
| author_sort | Zhuang ZHANG |
| collection | DOAJ |
| description | In recent years, great breakthroughs have been achieved for the exploration in the Permian Qixia Formation of the Shuangyushi structure in the north and the Pingluoba structure in the south of the Western Depression of the Sichuan Basin (Chuanxi Depression), while the exploration of the same formation in the middle segment of the Chuanxi Depression has not been carried out. In order to accelerate the ultra-deep marine natural gas exploration of the Qixia Formation, based on a large number of outcrops around the middle segment of the Chuanxi Depression, combined with seismic and drilling data and previous research results, this study systematically combed the oil and gas geological conditions of the Qixia Formation and comprehensively analyzed its exploration potential. Results show that the Qixia Formation in the study area has comparable sedimentary background as the north and south segments of the Chuanxi Depression, and is a platform margin sedimentary facies with superior reservoir conditions. Moreover, the Qixia Formation in the study area is connected with the hydrocarbon generation center of the Cambrian Qiongzhusi Formation by source faults. The tight limestone and shale of Permian and the gypsolyte of Triassic can be potential excellent cap rocks. Therefore, the source-reservoir-cap assemblage of the Qixia Formation in this area is preferential for large-scale hydrocarbon accumulation. |
| first_indexed | 2024-03-07T15:47:05Z |
| format | Article |
| id | doaj.art-05a2897d05fb486fb351992517687e7d |
| institution | Directory Open Access Journal |
| issn | 1001-6112 |
| language | zho |
| last_indexed | 2024-03-07T15:47:05Z |
| publishDate | 2022-11-01 |
| publisher | Editorial Office of Petroleum Geology and Experiment |
| record_format | Article |
| series | Shiyou shiyan dizhi |
| spelling | doaj.art-05a2897d05fb486fb351992517687e7d2024-03-05T04:28:04ZzhoEditorial Office of Petroleum Geology and ExperimentShiyou shiyan dizhi1001-61122022-11-0144695997010.11781/sysydz202206959sysydz-44-6-959Petroleum geological conditions and exploration potential of the Permian Qixia Formation in the middle segment of Western Depression, Sichuan BasinZhuang ZHANG0Chengpeng SU1Xiaobo SONG2Guoshan SHI3Renfu WANG4Suhua LI5Xia DONG6Yongliang HU7Research Institute of Exploration and Production, SINOPEC Southwest Oilfield Branch Company, Chengdu, Sichuan 610041, ChinaResearch Institute of Exploration and Production, SINOPEC Southwest Oilfield Branch Company, Chengdu, Sichuan 610041, ChinaResearch Institute of Exploration and Production, SINOPEC Southwest Oilfield Branch Company, Chengdu, Sichuan 610041, ChinaResearch Institute of Exploration and Production, SINOPEC Southwest Oilfield Branch Company, Chengdu, Sichuan 610041, ChinaResearch Institute of Exploration and Production, SINOPEC Southwest Oilfield Branch Company, Chengdu, Sichuan 610041, ChinaResearch Institute of Exploration and Production, SINOPEC Southwest Oilfield Branch Company, Chengdu, Sichuan 610041, ChinaResearch Institute of Exploration and Production, SINOPEC Southwest Oilfield Branch Company, Chengdu, Sichuan 610041, ChinaResearch Institute of Exploration and Production, SINOPEC Southwest Oilfield Branch Company, Chengdu, Sichuan 610041, ChinaIn recent years, great breakthroughs have been achieved for the exploration in the Permian Qixia Formation of the Shuangyushi structure in the north and the Pingluoba structure in the south of the Western Depression of the Sichuan Basin (Chuanxi Depression), while the exploration of the same formation in the middle segment of the Chuanxi Depression has not been carried out. In order to accelerate the ultra-deep marine natural gas exploration of the Qixia Formation, based on a large number of outcrops around the middle segment of the Chuanxi Depression, combined with seismic and drilling data and previous research results, this study systematically combed the oil and gas geological conditions of the Qixia Formation and comprehensively analyzed its exploration potential. Results show that the Qixia Formation in the study area has comparable sedimentary background as the north and south segments of the Chuanxi Depression, and is a platform margin sedimentary facies with superior reservoir conditions. Moreover, the Qixia Formation in the study area is connected with the hydrocarbon generation center of the Cambrian Qiongzhusi Formation by source faults. The tight limestone and shale of Permian and the gypsolyte of Triassic can be potential excellent cap rocks. Therefore, the source-reservoir-cap assemblage of the Qixia Formation in this area is preferential for large-scale hydrocarbon accumulation.https://www.sysydz.net/cn/article/doi/10.11781/sysydz202206959petroleum exploration potentialdolomite reservoirplatform marginqixia formationpermianmiddle segment of chuanxi depressionsichuan basin |
| spellingShingle | Zhuang ZHANG Chengpeng SU Xiaobo SONG Guoshan SHI Renfu WANG Suhua LI Xia DONG Yongliang HU Petroleum geological conditions and exploration potential of the Permian Qixia Formation in the middle segment of Western Depression, Sichuan Basin Shiyou shiyan dizhi petroleum exploration potential dolomite reservoir platform margin qixia formation permian middle segment of chuanxi depression sichuan basin |
| title | Petroleum geological conditions and exploration potential of the Permian Qixia Formation in the middle segment of Western Depression, Sichuan Basin |
| title_full | Petroleum geological conditions and exploration potential of the Permian Qixia Formation in the middle segment of Western Depression, Sichuan Basin |
| title_fullStr | Petroleum geological conditions and exploration potential of the Permian Qixia Formation in the middle segment of Western Depression, Sichuan Basin |
| title_full_unstemmed | Petroleum geological conditions and exploration potential of the Permian Qixia Formation in the middle segment of Western Depression, Sichuan Basin |
| title_short | Petroleum geological conditions and exploration potential of the Permian Qixia Formation in the middle segment of Western Depression, Sichuan Basin |
| title_sort | petroleum geological conditions and exploration potential of the permian qixia formation in the middle segment of western depression sichuan basin |
| topic | petroleum exploration potential dolomite reservoir platform margin qixia formation permian middle segment of chuanxi depression sichuan basin |
| url | https://www.sysydz.net/cn/article/doi/10.11781/sysydz202206959 |
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