Gas Generation Potential of Permian Oil-Prone Source Rocks and Natural Gas Exploration Potential in the Junggar Basin, NW China
The Junggar Basin, where twenty-seven oil fields and five gas fields have been discovered, is a typical “oil basin” with proven ratio of natural gas of 5.3%. The amount of natural gas from Permian source rocks has been found in the western margin of the basin, but no large-scale natural gas reservoi...
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MDPI AG
2022-11-01
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| author | Abilimit Yiming Xiujian Ding Liangrong Qian Hailei Liu Maoguo Hou Zhongfa Jiang |
| author_facet | Abilimit Yiming Xiujian Ding Liangrong Qian Hailei Liu Maoguo Hou Zhongfa Jiang |
| author_sort | Abilimit Yiming |
| collection | DOAJ |
| description | The Junggar Basin, where twenty-seven oil fields and five gas fields have been discovered, is a typical “oil basin” with proven ratio of natural gas of 5.3%. The amount of natural gas from Permian source rocks has been found in the western margin of the basin, but no large-scale natural gas reservoir has been discovered. The key to natural gas exploration is whether Permian oil-prone source rocks have large gas generation potential. Based on the comprehensive analysis of geochemical features and hydrocarbon generation simulation experiments, it is proved that the gas generation intensity could meet the standard of medium to large gas-fields (20 × 10<sup>8</sup> m<sup>3</sup>/km<sup>2</sup>) at a depth of more than 6500 m. In the Penyijing and Shawan Sags, the burial depth of the Fengcheng Formation source rocks is between 8500 m and 10,000 m, respectively. It could be concluded that the Permian source rocks in the Penyijingxi and Shawan Sags have relative higher gas generation potential. In addition to high natural gas generation potential, two sets of effective reservoirs (wreathing volcanic rocks and secondary dissolution of sandy conglomerates) and thick caprocks with overpressure are developed in the most areas of Junggar Basin. Recently, natural gas reservoirs have been discovered and industrial natural gas had been obtained around the Penyijingxi Sag, Shawan Sags, and the Southern margin of the Junggar Basin. Our research results and natural gas exploration practice show that the Junggar Basin have relatively large natural gas exploration potential. |
| first_indexed | 2024-03-09T18:30:44Z |
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| id | doaj.art-e10957d4b03f4f8c86eb1d79be1dc42a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T18:30:44Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-e10957d4b03f4f8c86eb1d79be1dc42a2023-11-24T07:33:30ZengMDPI AGApplied Sciences2076-34172022-11-0112221132710.3390/app122211327Gas Generation Potential of Permian Oil-Prone Source Rocks and Natural Gas Exploration Potential in the Junggar Basin, NW ChinaAbilimit Yiming0Xiujian Ding1Liangrong Qian2Hailei Liu3Maoguo Hou4Zhongfa Jiang5Research Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaSchool of Geosciences, China University of Petroleum, Qingdao 266580, ChinaSchool of Geosciences, China University of Petroleum, Qingdao 266580, ChinaResearch Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaSchool of Geosciences, China University of Petroleum, Qingdao 266580, ChinaResearch Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaThe Junggar Basin, where twenty-seven oil fields and five gas fields have been discovered, is a typical “oil basin” with proven ratio of natural gas of 5.3%. The amount of natural gas from Permian source rocks has been found in the western margin of the basin, but no large-scale natural gas reservoir has been discovered. The key to natural gas exploration is whether Permian oil-prone source rocks have large gas generation potential. Based on the comprehensive analysis of geochemical features and hydrocarbon generation simulation experiments, it is proved that the gas generation intensity could meet the standard of medium to large gas-fields (20 × 10<sup>8</sup> m<sup>3</sup>/km<sup>2</sup>) at a depth of more than 6500 m. In the Penyijing and Shawan Sags, the burial depth of the Fengcheng Formation source rocks is between 8500 m and 10,000 m, respectively. It could be concluded that the Permian source rocks in the Penyijingxi and Shawan Sags have relative higher gas generation potential. In addition to high natural gas generation potential, two sets of effective reservoirs (wreathing volcanic rocks and secondary dissolution of sandy conglomerates) and thick caprocks with overpressure are developed in the most areas of Junggar Basin. Recently, natural gas reservoirs have been discovered and industrial natural gas had been obtained around the Penyijingxi Sag, Shawan Sags, and the Southern margin of the Junggar Basin. Our research results and natural gas exploration practice show that the Junggar Basin have relatively large natural gas exploration potential.https://www.mdpi.com/2076-3417/12/22/11327oil-prone source rocknatural gas generation potentialnatural gas explorationFengcheng FormationJunggar Basin |
| spellingShingle | Abilimit Yiming Xiujian Ding Liangrong Qian Hailei Liu Maoguo Hou Zhongfa Jiang Gas Generation Potential of Permian Oil-Prone Source Rocks and Natural Gas Exploration Potential in the Junggar Basin, NW China Applied Sciences oil-prone source rock natural gas generation potential natural gas exploration Fengcheng Formation Junggar Basin |
| title | Gas Generation Potential of Permian Oil-Prone Source Rocks and Natural Gas Exploration Potential in the Junggar Basin, NW China |
| title_full | Gas Generation Potential of Permian Oil-Prone Source Rocks and Natural Gas Exploration Potential in the Junggar Basin, NW China |
| title_fullStr | Gas Generation Potential of Permian Oil-Prone Source Rocks and Natural Gas Exploration Potential in the Junggar Basin, NW China |
| title_full_unstemmed | Gas Generation Potential of Permian Oil-Prone Source Rocks and Natural Gas Exploration Potential in the Junggar Basin, NW China |
| title_short | Gas Generation Potential of Permian Oil-Prone Source Rocks and Natural Gas Exploration Potential in the Junggar Basin, NW China |
| title_sort | gas generation potential of permian oil prone source rocks and natural gas exploration potential in the junggar basin nw china |
| topic | oil-prone source rock natural gas generation potential natural gas exploration Fengcheng Formation Junggar Basin |
| url | https://www.mdpi.com/2076-3417/12/22/11327 |
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