On faults induced stress shielding to account for the formation of deep-buried reservoirs
文献类型：期刊论文
| 作者 | Zeng, Xiaguang; Zhu, Guangyou; Zhao, Bin; Wen JC(温济慈)
|
| 刊名 | ACTA MECHANICA SINICA
 |
| 出版日期 | 2025-04 |
| 卷号 | 41期号:4页码:424240 |
| 关键词 | Fault reservoir Deep-buried cave Hole-crack interaction Stress shielding |
| ISSN号 | 0567-7718 |
| DOI | 10.1007/s10409-024-24240-x |
| 英文摘要 | It is commonly accepted that the formation of oil and gas reservoirs in deep-buried strata is almost impossible due to the huge compaction of in-situ crustal stresses. Nevertheless, recent hydrocarbon explorations in the Tarim Basin have discovered reservoirs at depths exceeding 8 km. The reservoirs exhibit a strong correlation to the strata's faults and large fractures, yet the precise underlying mechanical mechanism remains obscure. To illuminate how the faults may facilitate the existence of such deep-buried reservoirs, we consider three ideal scenarios involving unconventional hole-crack interactions under remote biaxial compression. Our focus is on the stress concentration of the hole, influenced by the long main cracks. Closed-form compressive stress solutions are obtained based on our simple theoretical models, showing that long cracks significantly reduce the stress concentration of nearby holes. We quantify the reducing effect of the cracks' angle, surface friction, and pressure on the maximum shear and von Mises stresses around a hole, combining with finite element analysis results. The stress shielding effect is qualitatively consistent with the available experimental observations that the deep-buried caves are often located near the faults and large fractures in carbonate strata. Our results will be beneficial for future exploration of superdeep petroleum reservoirs. |
| 分类号 | 二类/Q1 |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001339923000003 |
| 资助机构 | National Natural Science Foundation of China {11988102] ; Natural Science Foundation of Guangdong Province {2019A1515011909] ; Science Challenge Project {TZ2018002] |
| 其他责任者 | Zeng XG |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/97202]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.【Wen, Jici】 Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China 2.【Zhao, Bin】 PetroChina, Tarim Oilfield Co, Korla 841000, Peoples R China 3.【Zhu, Guangyou】 PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China 4.【Zeng, Xiaguang】 Foshan Univ, Sch Mechatron Engn, Foshan 528000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Xiaguang,Zhu, Guangyou,Zhao, Bin,et al. On faults induced stress shielding to account for the formation of deep-buried reservoirs[J]. ACTA MECHANICA SINICA,2025,41(4):424240. |
| APA | Zeng, Xiaguang,Zhu, Guangyou,Zhao, Bin,&温济慈.(2025).On faults induced stress shielding to account for the formation of deep-buried reservoirs.ACTA MECHANICA SINICA,41(4),424240. |
| MLA | Zeng, Xiaguang,et al."On faults induced stress shielding to account for the formation of deep-buried reservoirs".ACTA MECHANICA SINICA 41.4(2025):424240. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。