Grading evaluation methods for lacustrine shale oil resources developed by in-situ heating conversion technology
In-situ conversion technology is a sustainable and effective method of recovering medium-low maturity shale, which can be produced with oil resources expected to exceed global total proven oil reserves. Nevertheless, criteria and procedures for grading such shale oil resources are lacking. We presen...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2024.1518236/full |
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| author | Senhu Lin Xia Luo Zhongying Zhao Lianhua Hou Shixiang Li Hui Li Zhenglian Pang Lijun Zhang |
| author_facet | Senhu Lin Xia Luo Zhongying Zhao Lianhua Hou Shixiang Li Hui Li Zhenglian Pang Lijun Zhang |
| author_sort | Senhu Lin |
| collection | DOAJ |
| description | In-situ conversion technology is a sustainable and effective method of recovering medium-low maturity shale, which can be produced with oil resources expected to exceed global total proven oil reserves. Nevertheless, criteria and procedures for grading such shale oil resources are lacking. We present a combination of distinct faceis and theoretical economic index (Ie) to grade the in-situ conversion shale oil resources of Chang 7 Member in the Ordos Basin and Nenjiang Formation in the Songliao Basin. This shale oil resource was categorized into four classes: invalid, valid, sweet-spot and core resource. For the shale dominated by type II kerogen (Chang 7), total organic carbon (TOC) values at 6%, 9%, and 12%, hydrocarbon generation potential (S1+S2) values at 15 mg/g, 30 mg/g, and 50 mg/g, and Ie at 2, 3, and 4, respectively, represent the boundary of the four resource grades. For the shale dominated by type Ⅰ kerogen (Nenjiang), TOC values at 4%, 6%, and 8%, S1+S2 values at 19 mg/g, 32 mg/g, 48 mg/g, and Ie at 2, 3, and 4, respectively, represent the boundary of the four resource grades. Our research provides a feasible practical strategy for evaluating and predicting in-situ conversion shale oil resources in lacustrine basins. |
| format | Article |
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| institution | Kabale University |
| issn | 2296-6463 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Earth Science |
| spelling | doaj-art-e823132a70bb46e1a49ca1bce8a9a6e72025-01-22T07:15:01ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632025-01-011210.3389/feart.2024.15182361518236Grading evaluation methods for lacustrine shale oil resources developed by in-situ heating conversion technologySenhu Lin0Xia Luo1Zhongying Zhao2Lianhua Hou3Shixiang Li4Hui Li5Zhenglian Pang6Lijun Zhang7Research Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaCNPC Shenzhen New Energy Research Institute Co., Ltd., Shenzhen, ChinaSchool of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaIn-situ conversion technology is a sustainable and effective method of recovering medium-low maturity shale, which can be produced with oil resources expected to exceed global total proven oil reserves. Nevertheless, criteria and procedures for grading such shale oil resources are lacking. We present a combination of distinct faceis and theoretical economic index (Ie) to grade the in-situ conversion shale oil resources of Chang 7 Member in the Ordos Basin and Nenjiang Formation in the Songliao Basin. This shale oil resource was categorized into four classes: invalid, valid, sweet-spot and core resource. For the shale dominated by type II kerogen (Chang 7), total organic carbon (TOC) values at 6%, 9%, and 12%, hydrocarbon generation potential (S1+S2) values at 15 mg/g, 30 mg/g, and 50 mg/g, and Ie at 2, 3, and 4, respectively, represent the boundary of the four resource grades. For the shale dominated by type Ⅰ kerogen (Nenjiang), TOC values at 4%, 6%, and 8%, S1+S2 values at 19 mg/g, 32 mg/g, 48 mg/g, and Ie at 2, 3, and 4, respectively, represent the boundary of the four resource grades. Our research provides a feasible practical strategy for evaluating and predicting in-situ conversion shale oil resources in lacustrine basins.https://www.frontiersin.org/articles/10.3389/feart.2024.1518236/fullshale oilin-situ conversionresource gradingtheoretical economic indexthe Ordos Basin |
| spellingShingle | Senhu Lin Xia Luo Zhongying Zhao Lianhua Hou Shixiang Li Hui Li Zhenglian Pang Lijun Zhang Grading evaluation methods for lacustrine shale oil resources developed by in-situ heating conversion technology Frontiers in Earth Science shale oil in-situ conversion resource grading theoretical economic index the Ordos Basin |
| title | Grading evaluation methods for lacustrine shale oil resources developed by in-situ heating conversion technology |
| title_full | Grading evaluation methods for lacustrine shale oil resources developed by in-situ heating conversion technology |
| title_fullStr | Grading evaluation methods for lacustrine shale oil resources developed by in-situ heating conversion technology |
| title_full_unstemmed | Grading evaluation methods for lacustrine shale oil resources developed by in-situ heating conversion technology |
| title_short | Grading evaluation methods for lacustrine shale oil resources developed by in-situ heating conversion technology |
| title_sort | grading evaluation methods for lacustrine shale oil resources developed by in situ heating conversion technology |
| topic | shale oil in-situ conversion resource grading theoretical economic index the Ordos Basin |
| url | https://www.frontiersin.org/articles/10.3389/feart.2024.1518236/full |
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