Origin, Migration, and Accumulation of Crude Oils in the Chaoyang Step-Fault Zone, Fushan Depression, Beibuwan Basin: Insight from Geochemical Evidence and Basin Modeling
The Fushan Depression is a hydrocarbon-rich depression in the Beibuwan Basin, South China Sea. In this study, 14 source rocks and 19 crude oils from the Chaoyang Step-Fault Zone and Southern Slope Zone were geochemically analyzed to determine their origins. The hydrocarbon generation, migration, and...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/17/23/5842 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850060453759156224 |
|---|---|
| author | Yang Shi Hao Guo Xiaohan Li Huiqi Li Meijun Li Xin Wang Surui Dong Xi He |
| author_facet | Yang Shi Hao Guo Xiaohan Li Huiqi Li Meijun Li Xin Wang Surui Dong Xi He |
| author_sort | Yang Shi |
| collection | DOAJ |
| description | The Fushan Depression is a hydrocarbon-rich depression in the Beibuwan Basin, South China Sea. In this study, 14 source rocks and 19 crude oils from the Chaoyang Step-Fault Zone and Southern Slope Zone were geochemically analyzed to determine their origins. The hydrocarbon generation, migration, and accumulation processes were also determined using two-dimensional basin modeling. Crude oils from the low-step area show a close relationship with the source rocks of the first and second members of the Eocene Liushagang Formation (E<i>ls</i><sub>1</sub> and E<i>ls</i><sub>2</sub>). The oils from the middle-step area and the Southern Slope Zone are derived from the local source rocks in those areas, in the third member of the Eocene Liushagang Formation (E<i>ls</i><sub>3</sub>). Hydrocarbons generated from the E<i>ls</i><sub>3</sub> source rocks of the Southern Slope Zone migrated along sand bodies to the E<i>ls</i><sub>3</sub> reservoir. The fault system of the Chaoyang Step-Fault Zone controls hydrocarbon migration and accumulation in the low-step and middle-step areas. The resource potential of the middle-step area is limited by its shallow burial depth. The low-step area is a more favorable exploration area due to its proximity to the source kitchen. |
| format | Article |
| id | doaj-art-05f07df6801846ec92a377138202db7f |
| institution | DOAJ |
| issn | 1996-1073 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-05f07df6801846ec92a377138202db7f2025-08-20T02:50:33ZengMDPI AGEnergies1996-10732024-11-011723584210.3390/en17235842Origin, Migration, and Accumulation of Crude Oils in the Chaoyang Step-Fault Zone, Fushan Depression, Beibuwan Basin: Insight from Geochemical Evidence and Basin ModelingYang Shi0Hao Guo1Xiaohan Li2Huiqi Li3Meijun Li4Xin Wang5Surui Dong6Xi He7Southern Oil Exploration and Development Company, PetroChina, Haikou 570216, ChinaSouthern Oil Exploration and Development Company, PetroChina, Haikou 570216, ChinaSouthern Oil Exploration and Development Company, PetroChina, Haikou 570216, ChinaSouthern Oil Exploration and Development Company, PetroChina, Haikou 570216, ChinaState Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaThe Fushan Depression is a hydrocarbon-rich depression in the Beibuwan Basin, South China Sea. In this study, 14 source rocks and 19 crude oils from the Chaoyang Step-Fault Zone and Southern Slope Zone were geochemically analyzed to determine their origins. The hydrocarbon generation, migration, and accumulation processes were also determined using two-dimensional basin modeling. Crude oils from the low-step area show a close relationship with the source rocks of the first and second members of the Eocene Liushagang Formation (E<i>ls</i><sub>1</sub> and E<i>ls</i><sub>2</sub>). The oils from the middle-step area and the Southern Slope Zone are derived from the local source rocks in those areas, in the third member of the Eocene Liushagang Formation (E<i>ls</i><sub>3</sub>). Hydrocarbons generated from the E<i>ls</i><sub>3</sub> source rocks of the Southern Slope Zone migrated along sand bodies to the E<i>ls</i><sub>3</sub> reservoir. The fault system of the Chaoyang Step-Fault Zone controls hydrocarbon migration and accumulation in the low-step and middle-step areas. The resource potential of the middle-step area is limited by its shallow burial depth. The low-step area is a more favorable exploration area due to its proximity to the source kitchen.https://www.mdpi.com/1996-1073/17/23/5842Fushan Depressionoil source correlationhydrocarbon migration and accumulationbasin modeling |
| spellingShingle | Yang Shi Hao Guo Xiaohan Li Huiqi Li Meijun Li Xin Wang Surui Dong Xi He Origin, Migration, and Accumulation of Crude Oils in the Chaoyang Step-Fault Zone, Fushan Depression, Beibuwan Basin: Insight from Geochemical Evidence and Basin Modeling Energies Fushan Depression oil source correlation hydrocarbon migration and accumulation basin modeling |
| title | Origin, Migration, and Accumulation of Crude Oils in the Chaoyang Step-Fault Zone, Fushan Depression, Beibuwan Basin: Insight from Geochemical Evidence and Basin Modeling |
| title_full | Origin, Migration, and Accumulation of Crude Oils in the Chaoyang Step-Fault Zone, Fushan Depression, Beibuwan Basin: Insight from Geochemical Evidence and Basin Modeling |
| title_fullStr | Origin, Migration, and Accumulation of Crude Oils in the Chaoyang Step-Fault Zone, Fushan Depression, Beibuwan Basin: Insight from Geochemical Evidence and Basin Modeling |
| title_full_unstemmed | Origin, Migration, and Accumulation of Crude Oils in the Chaoyang Step-Fault Zone, Fushan Depression, Beibuwan Basin: Insight from Geochemical Evidence and Basin Modeling |
| title_short | Origin, Migration, and Accumulation of Crude Oils in the Chaoyang Step-Fault Zone, Fushan Depression, Beibuwan Basin: Insight from Geochemical Evidence and Basin Modeling |
| title_sort | origin migration and accumulation of crude oils in the chaoyang step fault zone fushan depression beibuwan basin insight from geochemical evidence and basin modeling |
| topic | Fushan Depression oil source correlation hydrocarbon migration and accumulation basin modeling |
| url | https://www.mdpi.com/1996-1073/17/23/5842 |
| work_keys_str_mv | AT yangshi originmigrationandaccumulationofcrudeoilsinthechaoyangstepfaultzonefushandepressionbeibuwanbasininsightfromgeochemicalevidenceandbasinmodeling AT haoguo originmigrationandaccumulationofcrudeoilsinthechaoyangstepfaultzonefushandepressionbeibuwanbasininsightfromgeochemicalevidenceandbasinmodeling AT xiaohanli originmigrationandaccumulationofcrudeoilsinthechaoyangstepfaultzonefushandepressionbeibuwanbasininsightfromgeochemicalevidenceandbasinmodeling AT huiqili originmigrationandaccumulationofcrudeoilsinthechaoyangstepfaultzonefushandepressionbeibuwanbasininsightfromgeochemicalevidenceandbasinmodeling AT meijunli originmigrationandaccumulationofcrudeoilsinthechaoyangstepfaultzonefushandepressionbeibuwanbasininsightfromgeochemicalevidenceandbasinmodeling AT xinwang originmigrationandaccumulationofcrudeoilsinthechaoyangstepfaultzonefushandepressionbeibuwanbasininsightfromgeochemicalevidenceandbasinmodeling AT suruidong originmigrationandaccumulationofcrudeoilsinthechaoyangstepfaultzonefushandepressionbeibuwanbasininsightfromgeochemicalevidenceandbasinmodeling AT xihe originmigrationandaccumulationofcrudeoilsinthechaoyangstepfaultzonefushandepressionbeibuwanbasininsightfromgeochemicalevidenceandbasinmodeling |