中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院页岩气与地质工程重点实验室
Predicting collapse depth of paleocaves in carbonate reservoirs

文献类型：期刊论文

作者Zhao, Bin3; Zhu, Guangyou2; Shang, Yanjun1; Zhang, Hui3
刊名CARBONATES AND EVAPORITES
出版日期2021-06-01
卷号36期号:2页码:8
关键词Karst caves Carbonate reservoir Mechanics Numerical simulation Collapse
ISSN号0891-2556
DOI10.1007/s13146-021-00700-1
英文摘要Paleocaves in carbonate reservoirs are the excellent oil and gas storage spaces in the field of petroleum exploration. Predicting the collapse depth of paleocaves in carbonate reservoirs has essential theoretical significance and applicable value for classifying of reservoir quality and delimiting lower depth of oil and gas exploration. Paleocaves in carbonate reservoirs are acted by overburden pressure, tectonic lateral compression, and fluid pressure in caves. In this study, paleocaves with irregular boundary shapes were abstracted as spheres with different diameters. Mechanical model of surrounding rocks of paleocaves was established to compute the stress states in 3-5 times diameter of caves. Through analyzing stress states in surrounding rocks, the destruction and collapse of caves was investigated. The diameters of caves in these models range from 0.01 mm to 10 m. Relationship between diameter of cave and collapse depth was obtained by fitting collapse depth of caves with different diameters. Above the collapse depth of caves with diameter 5 m is good reservoir zone. Between the collapse depth of caves with diameter 5 m and 2 m is effective reservoir zone. The interval of collapse depth of caves with diameter 2 m and 0.5 m is general reservoir zone. Below 11000 m, karst caves in carbonate reservoir nearly disappear. Numerical model of real paleocaves was established to simulate the deformation of single paleocave and paleocave group. The relationship between displacement of paleocave wall and depth of paleocave obeyed power law. The contiguous destruction and collapse occurred first between the paleocaves with small distance. The relationship can be used to classify the quality of carbonate reservoir and predict the lower depth of petroleum exploration.
WOS关键词TARIM BASIN ; SICHUAN BASIN ; FEATURES ; STRATA
WOS研究方向Geology
语种英语
WOS记录号WOS:000647623000001
出版者SPRINGER
源URL[http://ir.iggcas.ac.cn/handle/132A11/101149]  
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Zhao, Bin
作者单位1.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.China Natl Petr Corp, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
3.PetroChina, Tarim Oilfield Co, Res Inst Explorat & Dev, Korla 841000, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Bin,Zhu, Guangyou,Shang, Yanjun,et al. Predicting collapse depth of paleocaves in carbonate reservoirs[J]. CARBONATES AND EVAPORITES,2021,36(2):8.
APA Zhao, Bin,Zhu, Guangyou,Shang, Yanjun,&Zhang, Hui.(2021).Predicting collapse depth of paleocaves in carbonate reservoirs.CARBONATES AND EVAPORITES,36(2),8.
MLA Zhao, Bin,et al."Predicting collapse depth of paleocaves in carbonate reservoirs".CARBONATES AND EVAPORITES 36.2(2021):8.

入库方式： OAI收割

来源：地质与地球物理研究所

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。