Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Wu, Wei1; Cheng, Peng2,3; Liu, Shenyang1; Luo, Chao1; Gai, Haifeng2,3; Gao, Haitao2,3; Zhou, Qin2,3; Li, Tengfei2,3; Zhong, Kesu1; Tian, Hui2,3
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| Gas-in-Place (GIP) Variation and Main Controlling Factors for the Deep Wufeng-Longmaxi Shales in the Luzhou Area of the Southern Sichuan Basin, China | |
| Source Publication | JOURNAL OF EARTH SCIENCE
 |
| ISSN | 1674-487X |
| 2023-08-01 | |
| Volume | 34Issue:4Pages:1002-1011 |
| DOI | 10.1007/s12583-021-1593-x |
| Language | 英语 |
| WOS Research Area | Geology |
| Abstract | The Wufeng-Longmaxi Formation shales with burial depths > 3 500 m in the southern Sichuan Basin are believed to have large shale gas potentials. However, the reservoir properties and gas-in-place (GIP) contents of these shales exhibit variations across different sublayers. In this study, a set of Wufeng-Longmaxi shales with burial depths of 4 000-4 200 m was derived from the Well Y101H2 in the Luzhou area, and the differences in geological and geochemical characteristics, porosity, water saturation and GIP content of various sublayer shales were investigated. The results indicate that the TOC content and effective porosity of the upper (LMX1-4) and lower (LMX1-3) sublayer shales of the first member of the Longmaxi Formation are better than those of the Wufeng Formation (WF) shales, which results in the LMX1-4 and LMX1-3 shales having higher GIP contents than the WF shales. The GIP contents of the LMX1-3 shales are higher than those of the LMX1-4 shales, and this is likely because the organic matter of the LMX1-3 shales had more aquatic organisms and was preserved in a stronger reductive environment, which leads to a stronger gas generation potential. In contrast to the middle-shallow LMX1-4 shales in the Sichuan Basin, the deep LMX1-4 shales in the Luzhou area have advantageous reservoir properties and GIP contents, and thus it is promising to synchronously exploit the deep LMX1-4 and LMX1-3 shales in some regions of the southern Sichuan Basin. |
| Keyword | the Sichuan Basin Wufeng-Longmaxi Formation shales deep shales reservoir properties GIP contents |
| WOS ID | WOS:001050332100005 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/74702 |
| Collection | 有机地球化学国家重点实验室 |
| Corresponding Author | Cheng, Peng |
| Affiliation | 1.PetroChina Southwest Oil & Gas Fields, Res Inst Shale Gas, Chengdu 610002, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 3.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China |
| Recommended Citation GB/T 7714 | Wu, Wei,Cheng, Peng,Liu, Shenyang,et al. Gas-in-Place (GIP) Variation and Main Controlling Factors for the Deep Wufeng-Longmaxi Shales in the Luzhou Area of the Southern Sichuan Basin, China[J]. JOURNAL OF EARTH SCIENCE,2023,34(4):1002-1011. |
| APA | Wu, Wei.,Cheng, Peng.,Liu, Shenyang.,Luo, Chao.,Gai, Haifeng.,...&Tian, Hui.(2023).Gas-in-Place (GIP) Variation and Main Controlling Factors for the Deep Wufeng-Longmaxi Shales in the Luzhou Area of the Southern Sichuan Basin, China.JOURNAL OF EARTH SCIENCE,34(4),1002-1011. |
| MLA | Wu, Wei,et al."Gas-in-Place (GIP) Variation and Main Controlling Factors for the Deep Wufeng-Longmaxi Shales in the Luzhou Area of the Southern Sichuan Basin, China".JOURNAL OF EARTH SCIENCE 34.4(2023):1002-1011. |
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