Mechanistic investigation of gas injection treatment in a continental shale gas condensate reservoir
文献类型:期刊论文
作者 | Li, Longlong2,3,4; Qin, Xing1,4; Zhou, Chao1,4; Liu, Yuewu2,3![]() ![]() ![]() |
刊名 | ACTA MECHANICA SINICA
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出版日期 | 2024-09-01 |
卷号 | 40期号:9页码:13 |
关键词 | Gas injection Gas condensate Continental shale reservoir Mechanism Numerical simulation |
ISSN号 | 0567-7718 |
DOI | 10.1007/s10409-024-23524-x |
通讯作者 | Li, Longlong(lilonglong@imech.ac.cn) ; Liu, Yuewu(lywu@imech.ac.cn) |
英文摘要 | Low thermal evolution degree of gas and connected fracture network are key features in the continental shale gas reservoirs. When the pressure decreases lower than the dew point pressure, gas condensate diminishes the mobility of subsurface fluid forms in the near well region, which further reduces the productivity and final recovery factor in addition to the low connected fracture network. This work is motivated to investigate the application of gas injection, proven to be a feasible technique in conventional/marine-shale gas condensate reservoirs, in continental shale gas condensate reservoirs. We apply a compositional model to investigate the mechanism of gas injection treatment taking a continental shale gas condensate reservoir in the Fuxing area, Sichuan Basin, China as an example. The results demonstrate that for the removal of gas condensate during CO2 injection, re-vaporization plays the main mechanism through two processes including pressurization and development of miscibility, while the former is overwhelming. Considering the variation trend of the total volume of gas condensate, we divide the whole injection process into four and six stages in the single fracture model and fracture network model, respectively, and reason the trend with respect to phase behavior and flow pattern. A sensitive study on the injected gas type indicates that the sorting of the gas injection performance to remove gas condensate produced gas followed by CH4, and followed by CO2. Finally, we investigate the performance of cyclic produced-gas injection and optimize the injection scheme. This work provides technical and theoretical support for the development of continental shale gas reservoirs. |
WOS关键词 | HUFF-N-PUFF ; ISOTHERMAL FLASH PROBLEM ; TRANSIENT ANALYSIS ; SIMULATION ; RECOVERY ; WELL |
资助项目 | Sinopec Key Laboratory of Shale Oil and Gas Drilling, Completion and Fracturing[35800000-22-ZC0613-0023] ; Beijing Municipal Natural Science Foundation[2232073] ; Sinopec Science and Technology Department[P22005] ; Sinopec Science and Technology Department[P21078-8] |
WOS研究方向 | Engineering ; Mechanics |
语种 | 英语 |
WOS记录号 | WOS:001253361800005 |
资助机构 | Sinopec Key Laboratory of Shale Oil and Gas Drilling, Completion and Fracturing ; Beijing Municipal Natural Science Foundation ; Sinopec Science and Technology Department |
源URL | [http://dspace.imech.ac.cn/handle/311007/95805] ![]() |
专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
通讯作者 | Li, Longlong; Liu, Yuewu |
作者单位 | 1.SINOPEC Res Inst Petr Engn Co Ltd, Beijing 102206, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 4.Sinopec Key Lab Drilling Complet & Fracturing Shal, Beijing 100101, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Longlong,Qin, Xing,Zhou, Chao,et al. Mechanistic investigation of gas injection treatment in a continental shale gas condensate reservoir[J]. ACTA MECHANICA SINICA,2024,40(9):13. |
APA | Li, Longlong.,Qin, Xing.,Zhou, Chao.,Liu, Yuewu.,Pang, Wei.,...&刘曰武.(2024).Mechanistic investigation of gas injection treatment in a continental shale gas condensate reservoir.ACTA MECHANICA SINICA,40(9),13. |
MLA | Li, Longlong,et al."Mechanistic investigation of gas injection treatment in a continental shale gas condensate reservoir".ACTA MECHANICA SINICA 40.9(2024):13. |
入库方式: OAI收割
来源:力学研究所
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