Evaluation of the oil and gas preservation conditions, source rocks, and hydrocarbon-generating potential of the Qiangtang Basin: New evidence from the scientific drilling project
ABSTRACT: The Qiangtang Basin of the Tibetan Plateau, located in the eastern Tethys tectonic domain, is the largest new marine petroliferous region for exploration in China. The scientific drilling project consisting primarily of well QK-1 and its supporting shallow boreholes for geological surveys...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2023-04-01
|
| Series: | China Geology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2096519223013915 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849416968039301120 |
|---|---|
| author | Li-jun Shen Jian-yong Zhang Shao-yun Xiong Jian Wang Xiu-gen Fu Bo Zheng Zhong-wei Wang |
| author_facet | Li-jun Shen Jian-yong Zhang Shao-yun Xiong Jian Wang Xiu-gen Fu Bo Zheng Zhong-wei Wang |
| author_sort | Li-jun Shen |
| collection | DOAJ |
| description | ABSTRACT: The Qiangtang Basin of the Tibetan Plateau, located in the eastern Tethys tectonic domain, is the largest new marine petroliferous region for exploration in China. The scientific drilling project consisting primarily of well QK-1 and its supporting shallow boreholes for geological surveys (also referred to as the Project) completed in recent years contributes to a series of new discoveries and insights into the oil and gas preservation conditions and source rock evaluation of the Qiangtang Basin. These findings differ from previous views that the Qiangtang Basin has poor oil and gas preservation conditions and lacks high-quality source rocks. As revealed by well QK-1 and its supporting shallow boreholes in the Project, the Qiangtang Basin hosts two sets of high-quality regional seals, namely an anhydrite layer in the Quemo Co Formation and the gypsum-bearing mudstones in the Xiali Formation. Moreover, the Qiangtang Basin has favorable oil and gas preservation conditions, as verified by the comprehensive study of the sealing capacity of seals, basin structure, tectonic uplift, magmatic activity, and groundwater motion. Furthermore, the shallow boreholes have also revealed that the Qiangtang Basin has high-quality hydrocarbon source rocks in the Upper Triassic Bagong Formation, which are thick and widely distributed according to the geological and geophysical data. In addition, the petroleum geological conditions, such as the type, abundance, and thermal evolution of organic matter, indicate that the Qiangtang Basin has great hydrocarbon-generating potential.©2023 China Geology Editorial Office. |
| format | Article |
| id | doaj-art-4b0604d3c39c47038bcc1022c31c3e8d |
| institution | Kabale University |
| issn | 2589-9430 |
| language | English |
| publishDate | 2023-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | China Geology |
| spelling | doaj-art-4b0604d3c39c47038bcc1022c31c3e8d2025-08-20T03:32:58ZengKeAi Communications Co., Ltd.China Geology2589-94302023-04-016218720710.31035/cg2023033Evaluation of the oil and gas preservation conditions, source rocks, and hydrocarbon-generating potential of the Qiangtang Basin: New evidence from the scientific drilling projectLi-jun Shen0Jian-yong Zhang1Shao-yun Xiong2Jian Wang3Xiu-gen Fu4Bo Zheng5Zhong-wei Wang6State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China; Qiangtang Institute of Sedimentary Basin, Southwest Petroleum University, Chengdu 610500, China; School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China; First author: E-mail address: shenlj9102@163.com (Li-jun Shen).PetroChina Hangzhou Research Institute of Geology, Hangzhou 310023, ChinaPetroChina Hangzhou Research Institute of Geology, Hangzhou 310023, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China; Qiangtang Institute of Sedimentary Basin, Southwest Petroleum University, Chengdu 610500, China; School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China; Corresponding author: E-mail address: w1962jian@163.com (Jian Wang).State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China; Qiangtang Institute of Sedimentary Basin, Southwest Petroleum University, Chengdu 610500, China; School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China; Qiangtang Institute of Sedimentary Basin, Southwest Petroleum University, Chengdu 610500, China; School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China; Qiangtang Institute of Sedimentary Basin, Southwest Petroleum University, Chengdu 610500, China; School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, ChinaABSTRACT: The Qiangtang Basin of the Tibetan Plateau, located in the eastern Tethys tectonic domain, is the largest new marine petroliferous region for exploration in China. The scientific drilling project consisting primarily of well QK-1 and its supporting shallow boreholes for geological surveys (also referred to as the Project) completed in recent years contributes to a series of new discoveries and insights into the oil and gas preservation conditions and source rock evaluation of the Qiangtang Basin. These findings differ from previous views that the Qiangtang Basin has poor oil and gas preservation conditions and lacks high-quality source rocks. As revealed by well QK-1 and its supporting shallow boreholes in the Project, the Qiangtang Basin hosts two sets of high-quality regional seals, namely an anhydrite layer in the Quemo Co Formation and the gypsum-bearing mudstones in the Xiali Formation. Moreover, the Qiangtang Basin has favorable oil and gas preservation conditions, as verified by the comprehensive study of the sealing capacity of seals, basin structure, tectonic uplift, magmatic activity, and groundwater motion. Furthermore, the shallow boreholes have also revealed that the Qiangtang Basin has high-quality hydrocarbon source rocks in the Upper Triassic Bagong Formation, which are thick and widely distributed according to the geological and geophysical data. In addition, the petroleum geological conditions, such as the type, abundance, and thermal evolution of organic matter, indicate that the Qiangtang Basin has great hydrocarbon-generating potential.©2023 China Geology Editorial Office.http://www.sciencedirect.com/science/article/pii/S2096519223013915Scientific drilling projectOil and gas preservationSource rockQuemo Co FormationOil and gas exploration engineeringQiangtang Basin |
| spellingShingle | Li-jun Shen Jian-yong Zhang Shao-yun Xiong Jian Wang Xiu-gen Fu Bo Zheng Zhong-wei Wang Evaluation of the oil and gas preservation conditions, source rocks, and hydrocarbon-generating potential of the Qiangtang Basin: New evidence from the scientific drilling project China Geology Scientific drilling project Oil and gas preservation Source rock Quemo Co Formation Oil and gas exploration engineering Qiangtang Basin |
| title | Evaluation of the oil and gas preservation conditions, source rocks, and hydrocarbon-generating potential of the Qiangtang Basin: New evidence from the scientific drilling project |
| title_full | Evaluation of the oil and gas preservation conditions, source rocks, and hydrocarbon-generating potential of the Qiangtang Basin: New evidence from the scientific drilling project |
| title_fullStr | Evaluation of the oil and gas preservation conditions, source rocks, and hydrocarbon-generating potential of the Qiangtang Basin: New evidence from the scientific drilling project |
| title_full_unstemmed | Evaluation of the oil and gas preservation conditions, source rocks, and hydrocarbon-generating potential of the Qiangtang Basin: New evidence from the scientific drilling project |
| title_short | Evaluation of the oil and gas preservation conditions, source rocks, and hydrocarbon-generating potential of the Qiangtang Basin: New evidence from the scientific drilling project |
| title_sort | evaluation of the oil and gas preservation conditions source rocks and hydrocarbon generating potential of the qiangtang basin new evidence from the scientific drilling project |
| topic | Scientific drilling project Oil and gas preservation Source rock Quemo Co Formation Oil and gas exploration engineering Qiangtang Basin |
| url | http://www.sciencedirect.com/science/article/pii/S2096519223013915 |
| work_keys_str_mv | AT lijunshen evaluationoftheoilandgaspreservationconditionssourcerocksandhydrocarbongeneratingpotentialoftheqiangtangbasinnewevidencefromthescientificdrillingproject AT jianyongzhang evaluationoftheoilandgaspreservationconditionssourcerocksandhydrocarbongeneratingpotentialoftheqiangtangbasinnewevidencefromthescientificdrillingproject AT shaoyunxiong evaluationoftheoilandgaspreservationconditionssourcerocksandhydrocarbongeneratingpotentialoftheqiangtangbasinnewevidencefromthescientificdrillingproject AT jianwang evaluationoftheoilandgaspreservationconditionssourcerocksandhydrocarbongeneratingpotentialoftheqiangtangbasinnewevidencefromthescientificdrillingproject AT xiugenfu evaluationoftheoilandgaspreservationconditionssourcerocksandhydrocarbongeneratingpotentialoftheqiangtangbasinnewevidencefromthescientificdrillingproject AT bozheng evaluationoftheoilandgaspreservationconditionssourcerocksandhydrocarbongeneratingpotentialoftheqiangtangbasinnewevidencefromthescientificdrillingproject AT zhongweiwang evaluationoftheoilandgaspreservationconditionssourcerocksandhydrocarbongeneratingpotentialoftheqiangtangbasinnewevidencefromthescientificdrillingproject |