文献类型：期刊文献

英文题名：Characteristics and controlling factors of deep-seated reservoir: a case study from the Fukang Sag of Junggar Basin

作者：Wang, Guodong Liu, Yin Shi, Zheng Li, Zengxiang Huang, Linjun Qu, Yongqiang Zhang, Jijuan

第一作者：Wang, Guodong

通信作者：Liu, Y[1];Shi, Z[2]

机构：[1]PetroChina, Res Inst Petr Explorat & Dev Northwest, Lanzhou 730020, Peoples R China;[2]China Natl Petr Corp, Key Lab Reservoir Descript, Lanzhou 730020, Peoples R China;[3]China Univ Petr, Natl Key Lab Deep Oil & Gas, Qingdao 266580, Peoples R China;[4]Guizhou Inst Technol, Coll Resources & Environm Engn, Guiyang 550003, Peoples R China;[5]PetroChina Xinjiang Oilfield Co, Oilfield Tech Serv Co, Karamay 834000, Peoples R China

第一机构：PetroChina, Res Inst Petr Explorat & Dev Northwest, Lanzhou 730020, Peoples R China

通信机构：corresponding author), China Univ Petr, Natl Key Lab Deep Oil & Gas, Qingdao 266580, Peoples R China;corresponding author), Guizhou Inst Technol, Coll Resources & Environm Engn, Guiyang 550003, Peoples R China.|贵州理工学院资源与环境工程学院;贵州理工学院;

年份：2025

外文期刊名：FRONTIERS OF EARTH SCIENCE

收录：;Scopus(收录号：2-s2.0-85217235286);WOS:【SCI-EXPANDED(收录号:WOS:001405533700001)】；

基金：This research was supported by the PetroChina Science and Technology Major Project (No. 2023ZZ0205), the Scientific research and technology development project of CNPC (Nos. 2021DJ04 and 2021DJ0401), the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDA14010301), and the National Natural Science Foundation of China (Grant No. 41702138). We are grateful to the Xinjiang Oilfield Company for providing the data. Thanks for the editors and reviewers for their constructive suggestions.

语种：英文

外文关键词：Junggar Basin; Fukang Sag; Wuerhe Formation; reservoir; evolution

摘要：The characteristics and formation mechanism of clastic reservoirs have a significant impact on petroleum accumulation in the deep-seated strata of sedimentary basins. Newly drill data indicate that the tight reservoirs in the lower slop of Fukang Sag in the Junggar Basin produce a lot of oil despite being buried extremely deep and with low porosity. By using lithological and geochemical studies, we investigated the formation of these deep-seated reservoirs through the comparison between upper and lower slopes. The results suggest that the reservoir of lower slop is highly compacted and has weaker dissolution than the reservoir in the upper slope. Dissolution and micro fractures are the key factors in determining the formation of deep-seated reservoirs. The fluids that caused the dissolution of reservoir can be divided into three stages and sourced from the mixture of deep and basin fluids. A model of reservoir formation and evolution has been set up. Our research could provide an insight for the formation of deep-seated reservoirs in similar geological conditions worldwide.