Effect of natural fractures with different sizes on the development of supercritical CO2 fractures – A case study on Songliao Basin
Shale reservoirs, characterized by their relatively low permeability and porosity, often employ hydraulic fracturing techniques to increase production during development. However, conventional large-scale hydraulic fracturing encounters challenges such as excessive water consumption, low flowback ra...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-04-01
|
| Series: | Journal of CO2 Utilization |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212982024000969 |
| _version_ | 1797213406009229312 |
|---|---|
| author | Yu Suo Xu Zhang Yajie Tian Chengchen Zhang Xiaofei Fu Zhejun Pan Haiqing Jiang Youqing Zhu Xueliang Ma |
| author_facet | Yu Suo Xu Zhang Yajie Tian Chengchen Zhang Xiaofei Fu Zhejun Pan Haiqing Jiang Youqing Zhu Xueliang Ma |
| author_sort | Yu Suo |
| collection | DOAJ |
| description | Shale reservoirs, characterized by their relatively low permeability and porosity, often employ hydraulic fracturing techniques to increase production during development. However, conventional large-scale hydraulic fracturing encounters challenges such as excessive water consumption, low flowback rates, and environmental concerns. Given the increasing scarcity of water resources and increased emphasis on sustainability environmental sustainability, hydraulic fracturing no longer meets the requirements for green and environmentally friendly extraction. The utilization of supercritical CO2 fracturing technology emerges as a promising alternative, offering advantages such as reduced water usage and minimized environmental impact. Additionally, this technology allows for the sequestration of CO2 underground, presenting an integrated approach to CO2 geological storage and oil-gas extraction. Supercritical CO2 possesses many unique physical and chemical properties. However, the micro-mechanisms governing its interaction with rock during fracturing, along with the mechanisms and propagation characteristics of fracture initiation, necessitate further in-depth investigation. This study aims to explore the development mechanisms of supercritical CO2 fractures under the influence of single factor variables and natural fractures of different sizes (2 m, 4 m, and 6 m). To explore the interaction mechanisms between natural fractures and supercritical CO2 fractures, single factor variable control experiments were conducted with natural fracture angles of 30 °, 45 °, and 60 °, and in-situ stress deviations of 3, 5, 7, and 9 MPa. Our research delves into the impact of natural fracture inclination angle, in-situ stress deviation, and natural fracture size on supercritical CO2 fractures development. This comprehensive exploration unveils the intricate interaction mechanisms between natural fractures of different sizes and supercritical CO2 fractures. Various control chart were studied, considering different natural fracture under diverse ground stresses and inclinations. The findings of this study bear theoretical significance and engineering application for enhancing efficiency in shale gas production. |
| first_indexed | 2024-04-24T10:57:46Z |
| format | Article |
| id | doaj.art-bdb718d281be4ce0a6f9a7734fcc521d |
| institution | Directory Open Access Journal |
| issn | 2212-9839 |
| language | English |
| last_indexed | 2024-04-24T10:57:46Z |
| publishDate | 2024-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of CO2 Utilization |
| spelling | doaj.art-bdb718d281be4ce0a6f9a7734fcc521d2024-04-12T04:45:20ZengElsevierJournal of CO2 Utilization2212-98392024-04-0182102761Effect of natural fractures with different sizes on the development of supercritical CO2 fractures – A case study on Songliao BasinYu Suo0Xu Zhang1Yajie Tian2Chengchen Zhang3Xiaofei Fu4Zhejun Pan5Haiqing Jiang6Youqing Zhu7Xueliang Ma8Key laboratory of Enhanced Oil and Gas Recovery, Ministry of Education, Northeast Petroleum University, Daqing, 163318, Heilongjiang, China; School of Petroleum Engineering, Northeast Petroleum University, Daqing, China; Postdoctoral Resource Center, Daqing Oilfield Company Limited, Daqing, China; Heilongjiang Province Key Laboratory of Oil and Gas Reservoir Fracturing and Evaluation, Daqing, China; Corresponding author at: School of Petroleum Engineering, Northeast Petroleum University, Daqing, China.Key laboratory of Enhanced Oil and Gas Recovery, Ministry of Education, Northeast Petroleum University, Daqing, 163318, Heilongjiang, China; School of Petroleum Engineering, Northeast Petroleum University, Daqing, ChinaResearch Institute of Petroleum Exploration and Development, No. 20 Xueyuan Road, Haidian District, Beijing, ChinaGeologic Research Institute, China Petroleum Logging Corporation, Xi’an, Shaanxi 710077, ChinaKey laboratory of Enhanced Oil and Gas Recovery, Ministry of Education, Northeast Petroleum University, Daqing, 163318, Heilongjiang, ChinaKey laboratory of Enhanced Oil and Gas Recovery, Ministry of Education, Northeast Petroleum University, Daqing, 163318, Heilongjiang, ChinaDaqing Xinchen Oil Field Technical Service.Ltd, Daqing, ChinaDaqing Xinchen Oil Field Technical Service.Ltd, Daqing, ChinaDaqing Xinchen Oil Field Technical Service.Ltd, Daqing, ChinaShale reservoirs, characterized by their relatively low permeability and porosity, often employ hydraulic fracturing techniques to increase production during development. However, conventional large-scale hydraulic fracturing encounters challenges such as excessive water consumption, low flowback rates, and environmental concerns. Given the increasing scarcity of water resources and increased emphasis on sustainability environmental sustainability, hydraulic fracturing no longer meets the requirements for green and environmentally friendly extraction. The utilization of supercritical CO2 fracturing technology emerges as a promising alternative, offering advantages such as reduced water usage and minimized environmental impact. Additionally, this technology allows for the sequestration of CO2 underground, presenting an integrated approach to CO2 geological storage and oil-gas extraction. Supercritical CO2 possesses many unique physical and chemical properties. However, the micro-mechanisms governing its interaction with rock during fracturing, along with the mechanisms and propagation characteristics of fracture initiation, necessitate further in-depth investigation. This study aims to explore the development mechanisms of supercritical CO2 fractures under the influence of single factor variables and natural fractures of different sizes (2 m, 4 m, and 6 m). To explore the interaction mechanisms between natural fractures and supercritical CO2 fractures, single factor variable control experiments were conducted with natural fracture angles of 30 °, 45 °, and 60 °, and in-situ stress deviations of 3, 5, 7, and 9 MPa. Our research delves into the impact of natural fracture inclination angle, in-situ stress deviation, and natural fracture size on supercritical CO2 fractures development. This comprehensive exploration unveils the intricate interaction mechanisms between natural fractures of different sizes and supercritical CO2 fractures. Various control chart were studied, considering different natural fracture under diverse ground stresses and inclinations. The findings of this study bear theoretical significance and engineering application for enhancing efficiency in shale gas production.http://www.sciencedirect.com/science/article/pii/S2212982024000969Shale gasSupercritical CO2Natural fractureInclination angleIn-situ stress |
| spellingShingle | Yu Suo Xu Zhang Yajie Tian Chengchen Zhang Xiaofei Fu Zhejun Pan Haiqing Jiang Youqing Zhu Xueliang Ma Effect of natural fractures with different sizes on the development of supercritical CO2 fractures – A case study on Songliao Basin Journal of CO2 Utilization Shale gas Supercritical CO2 Natural fracture Inclination angle In-situ stress |
| title | Effect of natural fractures with different sizes on the development of supercritical CO2 fractures – A case study on Songliao Basin |
| title_full | Effect of natural fractures with different sizes on the development of supercritical CO2 fractures – A case study on Songliao Basin |
| title_fullStr | Effect of natural fractures with different sizes on the development of supercritical CO2 fractures – A case study on Songliao Basin |
| title_full_unstemmed | Effect of natural fractures with different sizes on the development of supercritical CO2 fractures – A case study on Songliao Basin |
| title_short | Effect of natural fractures with different sizes on the development of supercritical CO2 fractures – A case study on Songliao Basin |
| title_sort | effect of natural fractures with different sizes on the development of supercritical co2 fractures a case study on songliao basin |
| topic | Shale gas Supercritical CO2 Natural fracture Inclination angle In-situ stress |
| url | http://www.sciencedirect.com/science/article/pii/S2212982024000969 |
| work_keys_str_mv | AT yusuo effectofnaturalfractureswithdifferentsizesonthedevelopmentofsupercriticalco2fracturesacasestudyonsongliaobasin AT xuzhang effectofnaturalfractureswithdifferentsizesonthedevelopmentofsupercriticalco2fracturesacasestudyonsongliaobasin AT yajietian effectofnaturalfractureswithdifferentsizesonthedevelopmentofsupercriticalco2fracturesacasestudyonsongliaobasin AT chengchenzhang effectofnaturalfractureswithdifferentsizesonthedevelopmentofsupercriticalco2fracturesacasestudyonsongliaobasin AT xiaofeifu effectofnaturalfractureswithdifferentsizesonthedevelopmentofsupercriticalco2fracturesacasestudyonsongliaobasin AT zhejunpan effectofnaturalfractureswithdifferentsizesonthedevelopmentofsupercriticalco2fracturesacasestudyonsongliaobasin AT haiqingjiang effectofnaturalfractureswithdifferentsizesonthedevelopmentofsupercriticalco2fracturesacasestudyonsongliaobasin AT youqingzhu effectofnaturalfractureswithdifferentsizesonthedevelopmentofsupercriticalco2fracturesacasestudyonsongliaobasin AT xueliangma effectofnaturalfractureswithdifferentsizesonthedevelopmentofsupercriticalco2fracturesacasestudyonsongliaobasin |