Evaluation of middle and deep geothermal resources reserves in Changqing Oilfield
Geothermal energy, as a stable and sustainable clean energy source, is set to play a crucial role in China's energy structure transformation and the realization of the “double carbon” goal in the future. The Ordos Basin, noted for its abundant geothermal resources, still holds much untapped pot...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Petroleum Reservoir Evaluation and Development
2023-12-01
|
| Series: | Youqicang pingjia yu kaifa |
| Subjects: | |
| Online Access: | https://red.magtech.org.cn/fileup/2095-1426/PDF/1704252605669-876473477.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850132247509729280 |
|---|---|
| author | GUO Lu,XIA Yan,DUAN Chenyang,GAO Wenbing,CHEN Kai,HOU Yayun,GUO Hong |
| author_facet | GUO Lu,XIA Yan,DUAN Chenyang,GAO Wenbing,CHEN Kai,HOU Yayun,GUO Hong |
| author_sort | GUO Lu,XIA Yan,DUAN Chenyang,GAO Wenbing,CHEN Kai,HOU Yayun,GUO Hong |
| collection | DOAJ |
| description | Geothermal energy, as a stable and sustainable clean energy source, is set to play a crucial role in China's energy structure transformation and the realization of the “double carbon” goal in the future. The Ordos Basin, noted for its abundant geothermal resources, still holds much untapped potential due to incomplete understanding of its reserves and distribution characteristics, and the relatively low level of exploration and development. Focusing on the Changqing Oilfield and its surrounding areas, the study delves into the geothermal geological characteristics using well data. It employs the unit volume method to estimate the geothermal resource reserves and conducts zoning based on the development and utilization potential of these resources. The study reveals that the formation structure in the area is relatively straightforward, with a general geothermal gradient of 2.2~3.0 ℃/hm. The primary thermal reservoir consists of conductive Mesozoic sandstone, while other thermal reservoirs, except for Luohe Formation, exhibit poor water yield. The geothermal resources in the region are distributed with higher concentrations in the western areas and lower in the east, with a total amount of 79.91 × 1017 kJ. Among this a recoverable capacity of 6.39 × 1017 kJ, and a geothermal fluid reserve of 2.47 × 1012 m3 have been identified Blocks such as Hongliugou-Dashuikeng-Jicun-Shancheng block, Zhanggoumen-Liuquzhen-Sanchazhen block and the block near Qingyang exhibit significant potential for geothermal resource development. Therefore, the study recommends prioritizing the redevelopment of abandoned oil and gas wells, alongside the construction of medium and deep casing heat exchange systems. This approach would facilitate the effective development and utilization of geothermal resources in these areas. |
| format | Article |
| id | doaj-art-1e2fe1c5b53e44b8b742fb588f40f75e |
| institution | OA Journals |
| issn | 2095-1426 |
| language | zho |
| publishDate | 2023-12-01 |
| publisher | Editorial Department of Petroleum Reservoir Evaluation and Development |
| record_format | Article |
| series | Youqicang pingjia yu kaifa |
| spelling | doaj-art-1e2fe1c5b53e44b8b742fb588f40f75e2025-08-20T02:32:15ZzhoEditorial Department of Petroleum Reservoir Evaluation and DevelopmentYouqicang pingjia yu kaifa2095-14262023-12-0113674975610.13809/j.cnki.cn32-1825/te.2023.06.005Evaluation of middle and deep geothermal resources reserves in Changqing OilfieldGUO Lu,XIA Yan,DUAN Chenyang,GAO Wenbing,CHEN Kai,HOU Yayun,GUO Hong01. Research Institute of Petroleum Exploration and Development, Changqing Oilfield Company, PetroChina, Xi'an, Shaanxi 710018, China;2. National Engineering Laboratory of Exploration and Development for Low Permeability Oil and Gas Fields; Xi'an, Shaanxi 710018, China;3. Shaanxi Hydrogeology Engineering Geology and Environment Geology Survey Center; Xi'an, Shaanxi 710068, China;4. Shaanxi Engineering Technology Research Center for Urban Geology and Underground Space, Xi'an, Shaanxi 710068, ChinaGeothermal energy, as a stable and sustainable clean energy source, is set to play a crucial role in China's energy structure transformation and the realization of the “double carbon” goal in the future. The Ordos Basin, noted for its abundant geothermal resources, still holds much untapped potential due to incomplete understanding of its reserves and distribution characteristics, and the relatively low level of exploration and development. Focusing on the Changqing Oilfield and its surrounding areas, the study delves into the geothermal geological characteristics using well data. It employs the unit volume method to estimate the geothermal resource reserves and conducts zoning based on the development and utilization potential of these resources. The study reveals that the formation structure in the area is relatively straightforward, with a general geothermal gradient of 2.2~3.0 ℃/hm. The primary thermal reservoir consists of conductive Mesozoic sandstone, while other thermal reservoirs, except for Luohe Formation, exhibit poor water yield. The geothermal resources in the region are distributed with higher concentrations in the western areas and lower in the east, with a total amount of 79.91 × 1017 kJ. Among this a recoverable capacity of 6.39 × 1017 kJ, and a geothermal fluid reserve of 2.47 × 1012 m3 have been identified Blocks such as Hongliugou-Dashuikeng-Jicun-Shancheng block, Zhanggoumen-Liuquzhen-Sanchazhen block and the block near Qingyang exhibit significant potential for geothermal resource development. Therefore, the study recommends prioritizing the redevelopment of abandoned oil and gas wells, alongside the construction of medium and deep casing heat exchange systems. This approach would facilitate the effective development and utilization of geothermal resources in these areas.https://red.magtech.org.cn/fileup/2095-1426/PDF/1704252605669-876473477.pdf|oilfield geothermal|reservoir temperature distribution characteristics|geothermal resource reserves|unit volume method|renovation of abandoned oil and gas wells |
| spellingShingle | GUO Lu,XIA Yan,DUAN Chenyang,GAO Wenbing,CHEN Kai,HOU Yayun,GUO Hong Evaluation of middle and deep geothermal resources reserves in Changqing Oilfield Youqicang pingjia yu kaifa |oilfield geothermal|reservoir temperature distribution characteristics|geothermal resource reserves|unit volume method|renovation of abandoned oil and gas wells |
| title | Evaluation of middle and deep geothermal resources reserves in Changqing Oilfield |
| title_full | Evaluation of middle and deep geothermal resources reserves in Changqing Oilfield |
| title_fullStr | Evaluation of middle and deep geothermal resources reserves in Changqing Oilfield |
| title_full_unstemmed | Evaluation of middle and deep geothermal resources reserves in Changqing Oilfield |
| title_short | Evaluation of middle and deep geothermal resources reserves in Changqing Oilfield |
| title_sort | evaluation of middle and deep geothermal resources reserves in changqing oilfield |
| topic | |oilfield geothermal|reservoir temperature distribution characteristics|geothermal resource reserves|unit volume method|renovation of abandoned oil and gas wells |
| url | https://red.magtech.org.cn/fileup/2095-1426/PDF/1704252605669-876473477.pdf |
| work_keys_str_mv | AT guoluxiayanduanchenyanggaowenbingchenkaihouyayunguohong evaluationofmiddleanddeepgeothermalresourcesreservesinchangqingoilfield |