Numerical Simulation of the Fracture Propagation Mechanism during Supercritical Carbon Dioxide Fracturing in Shale Reservoirs
文献类型：期刊论文
| 作者 | Li, Fengxia1,3,4; Zhou, Tong1,3,4; Wang, Haibo1,3,4; He, Jianming2; Shi, Aiping1,3,4 |
| 刊名 | LITHOSPHERE
 |
| 出版日期 | 2022 |
| 卷号 | 2022期号:1页码:9 |
| ISSN号 | 1941-8264 |
| DOI | 10.2113/2022/3328162 |
| 英文摘要 | To investigate the fracture propagation mechanism during supercritical CO2 fracturing in shale reservoirs, a numerical model was proposed based on the displacement discontinuity method. The Peng-Robinson equation was introduced to determine the variations in CO2 properties during the fracturing process. Considering natural fracture distribution in shale reservoirs, the fracture propagation mechanisms during supercritical CO2 fracturing in shale reservoirs under different horizontal stress differences and matrix permeabilities were analyzed. The influence of the proportion of CO2 preenergizing on fracture morphology was discussed. The results obtained via numerical simulation show that supercritical CO2 is beneficial to create a more complex fracture network by activating natural fractures under the same horizontal stress difference. CO2 easily penetrates into the matrix near the fracture surfaces, increasing reservoir energy. However, when the permeability of shale reservoirs exceeds 0:04 x 10(-3) mu m(2), substantial filtration of CO2 into the reservoir matrix occurs near the well bore, limiting the activation of natural fractures around the fracture tip. A higher proportion of CO2 preenergizing during fracturing is conducive to improve the fracture complexity while reducing the fracture aperture. |
| WOS关键词 | CO2 INJECTION ; GAS ; STORAGE ; FLOW |
| 资助项目 | Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production Technology[33550000-21-ZC0613-0311] |
| WOS研究方向 | Geochemistry & Geophysics ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000977110400002 |
| 出版者 | GEOSCIENCEWORLD |
| 资助机构 | Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production Technology ; Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production Technology ; Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production Technology ; Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production Technology ; Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production Technology ; Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production Technology ; Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production Technology ; Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production Technology |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/110896]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Zhou, Tong |
| 作者单位 | 1.State Energy Ctr Shale Oil Res & Dev, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100191, Peoples R China 3.Sinopec Petr Explorat & Prod Res Inst, Beijing 100083, Peoples R China 4.State Key Lab Shale Oil & Gas Enrichment Mech & E, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Fengxia,Zhou, Tong,Wang, Haibo,et al. Numerical Simulation of the Fracture Propagation Mechanism during Supercritical Carbon Dioxide Fracturing in Shale Reservoirs[J]. LITHOSPHERE,2022,2022(1):9. |
| APA | Li, Fengxia,Zhou, Tong,Wang, Haibo,He, Jianming,&Shi, Aiping.(2022).Numerical Simulation of the Fracture Propagation Mechanism during Supercritical Carbon Dioxide Fracturing in Shale Reservoirs.LITHOSPHERE,2022(1),9. |
| MLA | Li, Fengxia,et al."Numerical Simulation of the Fracture Propagation Mechanism during Supercritical Carbon Dioxide Fracturing in Shale Reservoirs".LITHOSPHERE 2022.1(2022):9. |
入库方式： OAI收割
来源：地质与地球物理研究所
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