Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
| Cao, Huairen1,2; Shi, Jun2; Zhan, Zhao-Wen2,3; Wu, Hao1; Wang, Xiaoyu1; Cheng, Xin1; Li, Haolin1; Zou, Yan-Rong2,3; Peng, Ping'an2,3 | |
| Shale oil potential and mobility in low- to medium-maturity lacustrine shales: A case study of the Yanchang Formation shale in southeast Ordos Basin, China | |
| Source Publication | INTERNATIONAL JOURNAL OF COAL GEOLOGY
 |
| ISSN | 0166-5162 |
| 2024-02-01 | |
| Volume | 282Pages:13 |
| DOI | 10.1016/j.coal.2023.104421 |
| Language | 英语 |
| WOS Research Area | Energy & Fuels ; Geology |
| Abstract | Oil mobility is essential for the evaluation of shale oil resources, yet there has been limited research conducted on the oil mobility of low-to medium-maturity lacustrine shale. This study integrates multiple methodologies such as organic geochemistry, mineralogy, oil-kerogen adsorption-swelling experiments, and in-situ conversion pro-cess (ICP) models to evaluate the mobility and potential for shale oil in the lacustrine shale of the Yanchang Formation in the Yaoqu 1 (YQ1) well situated in the southeastern region of the Ordos Basin. The Chang 7 shales are categorized as highly favorable source rocks, nonetheless, the oil contained within these layers predomi-nantly exists in an adsorbed-swelling state, resulting in limited mobility as indicated by the oil saturation index, a modified oversaturation index, and production index. Therefore, the utilization of existing conventional tech-niques for shale oil exploitation is not viable for the Chang 7 shale characterized by low to medium maturity in the study area. Nevertheless, during the ICP, the quantity and mobility of oil within the Chang 7 shales exhibit a substantial increase as temperature rises. Moreover, once the Chang 7 type II shales reach a maturity level of around 0.91%Ro, they demonstrate noteworthy prospects for shale oil production. The findings of this study serve as a valuable reference for guiding the advancement of in-situ conversion process technology in the study area, while also offering substantial evidence for addressing the intricate challenge of crude oil mobility in low-to medium-maturity lacustrine shale reservoirs. |
| Keyword | Lacustrine shale Shale oil Low-to medium-maturity Swelling Oil mobility Ordos Basin |
| WOS ID | WOS:001145336400001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/76126 |
| Collection | 有机地球化学国家重点实验室 |
| Corresponding Author | Zhan, Zhao-Wen |
| Affiliation | 1.Lanzhou Univ, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China |
| Recommended Citation GB/T 7714 | Cao, Huairen,Shi, Jun,Zhan, Zhao-Wen,et al. Shale oil potential and mobility in low- to medium-maturity lacustrine shales: A case study of the Yanchang Formation shale in southeast Ordos Basin, China[J]. INTERNATIONAL JOURNAL OF COAL GEOLOGY,2024,282:13. |
| APA | Cao, Huairen.,Shi, Jun.,Zhan, Zhao-Wen.,Wu, Hao.,Wang, Xiaoyu.,...&Peng, Ping'an.(2024).Shale oil potential and mobility in low- to medium-maturity lacustrine shales: A case study of the Yanchang Formation shale in southeast Ordos Basin, China.INTERNATIONAL JOURNAL OF COAL GEOLOGY,282,13. |
| MLA | Cao, Huairen,et al."Shale oil potential and mobility in low- to medium-maturity lacustrine shales: A case study of the Yanchang Formation shale in southeast Ordos Basin, China".INTERNATIONAL JOURNAL OF COAL GEOLOGY 282(2024):13. |
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