Advances and trends of non-marine shale sedimentology: A case study from Gulong Shale of Daqing Oilfield, Songliao Basin, NE China
This study took the Gulong Shale in the Upper Cretaceous Qingshankou Formation of the Songliao Basin, NE China, as an example. Through paleolake-level reconstruction and comprehensive analyses on types of lamina, vertical associations of lithofacies, as well as stages and controlling factors of sedi...
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KeAi Communications Co., Ltd.
2024-12-01
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| Series: | Petroleum Exploration and Development |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1876380425605477 |
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| author | Longde SUN Rukai ZHU Tianshu ZHANG Yi CAI Zihui FENG Bin BAI Hang JIANG Bo WANG |
| author_facet | Longde SUN Rukai ZHU Tianshu ZHANG Yi CAI Zihui FENG Bin BAI Hang JIANG Bo WANG |
| author_sort | Longde SUN |
| collection | DOAJ |
| description | This study took the Gulong Shale in the Upper Cretaceous Qingshankou Formation of the Songliao Basin, NE China, as an example. Through paleolake-level reconstruction and comprehensive analyses on types of lamina, vertical associations of lithofacies, as well as stages and controlling factors of sedimentary evolution, the cyclic changes of waters, paleoclimate, and continental clastic supply intensity in the lake basin during the deposition of the Qingshankou Formation were discussed. The impacts of lithofacies compositions/structures on oil-bearing property, the relation between reservoir performance and lithofacies compositions/structures, the differences of lithofacies in mechanical properties, and the shale oil occurrence and movability in different lithofacies were investigated. The insights of this study provide a significant guideline for evaluation of shale oil enrichment layers/zones. The non-marine shale sedimentology is expected to evolve into an interdisciplinary science on the basis of sedimentary petrology and petroleum geology, which reveals the physical, chemical and biological actions, and the distribution characteristics and evolution patterns of minerals, organic matter, pores, fluid, and phases, in the transportation, sedimentation, water-rock interaction, diagenesis and evolution processes. Such research will focus on eight aspects: lithofacies and organic matter distribution prediction under a sequence stratigraphic framework for non-marine shale strata; lithofacies paleogeography of shale strata based on the forward modeling of sedimentation; origins of non-marine shale lamina and log-based identification of lamina combinations; source of organic matter in shale and its enrichment process; non-marine shale lithofacies classification by rigid particles + plastic components + pore-fracture system; multi-field coupling organic-inorganic interaction mechanism in shale diagenesis; new methods and intelligent core technology for shale reservoir multi-scale characterization; and quantitative evaluation and intelligent analysis system of shale reservoir heterogeneity. |
| format | Article |
| id | doaj-art-cf504828e2904c428749ecf113a5ca71 |
| institution | OA Journals |
| issn | 1876-3804 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Petroleum Exploration and Development |
| spelling | doaj-art-cf504828e2904c428749ecf113a5ca712025-08-20T02:34:56ZengKeAi Communications Co., Ltd.Petroleum Exploration and Development1876-38042024-12-015161367138510.1016/S1876-3804(25)60547-7Advances and trends of non-marine shale sedimentology: A case study from Gulong Shale of Daqing Oilfield, Songliao Basin, NE ChinaLongde SUN0Rukai ZHU1Tianshu ZHANG2Yi CAI3Zihui FENG4Bin BAI5Hang JIANG6Bo WANG7National Key Laboratory for Multi-resource Collaborated Green Development of Continental Shale Oil, Daqing 163712, ChinaNational Key Laboratory for Multi-resource Collaborated Green Development of Continental Shale Oil, Daqing 163712, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China; CNPC Key Laboratory of Oil and Gas Reservoirs, Beijing 100083, China; Corresponding author.National Key Laboratory for Multi-resource Collaborated Green Development of Continental Shale Oil, Daqing 163712, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaNational Key Laboratory for Multi-resource Collaborated Green Development of Continental Shale Oil, Daqing 163712, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaNational Key Laboratory for Multi-resource Collaborated Green Development of Continental Shale Oil, Daqing 163712, ChinaNational Key Laboratory for Multi-resource Collaborated Green Development of Continental Shale Oil, Daqing 163712, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaNational Key Laboratory for Multi-resource Collaborated Green Development of Continental Shale Oil, Daqing 163712, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaPeking University, Beijing 100871, ChinaThis study took the Gulong Shale in the Upper Cretaceous Qingshankou Formation of the Songliao Basin, NE China, as an example. Through paleolake-level reconstruction and comprehensive analyses on types of lamina, vertical associations of lithofacies, as well as stages and controlling factors of sedimentary evolution, the cyclic changes of waters, paleoclimate, and continental clastic supply intensity in the lake basin during the deposition of the Qingshankou Formation were discussed. The impacts of lithofacies compositions/structures on oil-bearing property, the relation between reservoir performance and lithofacies compositions/structures, the differences of lithofacies in mechanical properties, and the shale oil occurrence and movability in different lithofacies were investigated. The insights of this study provide a significant guideline for evaluation of shale oil enrichment layers/zones. The non-marine shale sedimentology is expected to evolve into an interdisciplinary science on the basis of sedimentary petrology and petroleum geology, which reveals the physical, chemical and biological actions, and the distribution characteristics and evolution patterns of minerals, organic matter, pores, fluid, and phases, in the transportation, sedimentation, water-rock interaction, diagenesis and evolution processes. Such research will focus on eight aspects: lithofacies and organic matter distribution prediction under a sequence stratigraphic framework for non-marine shale strata; lithofacies paleogeography of shale strata based on the forward modeling of sedimentation; origins of non-marine shale lamina and log-based identification of lamina combinations; source of organic matter in shale and its enrichment process; non-marine shale lithofacies classification by rigid particles + plastic components + pore-fracture system; multi-field coupling organic-inorganic interaction mechanism in shale diagenesis; new methods and intelligent core technology for shale reservoir multi-scale characterization; and quantitative evaluation and intelligent analysis system of shale reservoir heterogeneity.http://www.sciencedirect.com/science/article/pii/S1876380425605477non-marine shale sedimentologylithofacies paleogeography of shale strataorganic-inorganic interaction mechanismintelligent core technologyCretaceous Qingshankou FormationGulong Shale |
| spellingShingle | Longde SUN Rukai ZHU Tianshu ZHANG Yi CAI Zihui FENG Bin BAI Hang JIANG Bo WANG Advances and trends of non-marine shale sedimentology: A case study from Gulong Shale of Daqing Oilfield, Songliao Basin, NE China Petroleum Exploration and Development non-marine shale sedimentology lithofacies paleogeography of shale strata organic-inorganic interaction mechanism intelligent core technology Cretaceous Qingshankou Formation Gulong Shale |
| title | Advances and trends of non-marine shale sedimentology: A case study from Gulong Shale of Daqing Oilfield, Songliao Basin, NE China |
| title_full | Advances and trends of non-marine shale sedimentology: A case study from Gulong Shale of Daqing Oilfield, Songliao Basin, NE China |
| title_fullStr | Advances and trends of non-marine shale sedimentology: A case study from Gulong Shale of Daqing Oilfield, Songliao Basin, NE China |
| title_full_unstemmed | Advances and trends of non-marine shale sedimentology: A case study from Gulong Shale of Daqing Oilfield, Songliao Basin, NE China |
| title_short | Advances and trends of non-marine shale sedimentology: A case study from Gulong Shale of Daqing Oilfield, Songliao Basin, NE China |
| title_sort | advances and trends of non marine shale sedimentology a case study from gulong shale of daqing oilfield songliao basin ne china |
| topic | non-marine shale sedimentology lithofacies paleogeography of shale strata organic-inorganic interaction mechanism intelligent core technology Cretaceous Qingshankou Formation Gulong Shale |
| url | http://www.sciencedirect.com/science/article/pii/S1876380425605477 |
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