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  4. 中国科学院页岩气与地质工程重点实验室
Multi-scale modeling of shale laminas and fracture networks in the Yanchang formation, Southern Ordos Basin, China

文献类型：期刊论文

作者Li, Lihui1,2,3; Huang, Beixiu1,2,3; Li, Yanyan1,2; Hu, Ruilin1,2,3; Li, Xiao1,2,3
刊名ENGINEERING GEOLOGY
出版日期2018-09-04
卷号243页码:231-240
关键词Lamina Fracture network Multi-scale modeling Continental shale Ordos Basin
ISSN号0013-7952
DOI10.1016/j.enggeo.2018.07.010
英文摘要Outcrops and core observations show that sandy and tuffaceous laminas and natural fractures are well developed in the continental shale gas reservoir. This study reports the distribution of laminas and natural fracture networks at different scales, in cases of outcrops, wells and cores from Yanchang Formation, southern Ordos Basin. Firstly, based on two-dimensional fracture field investigations, a 3-D joint network model of the study area was built using the Monte Carlo simulation method. Then the laminations were identified from macroscopic scales to microscopic scales with multiple probe techniques. Statistical analysis of multi-scale layer thickness suggested that the average thickness of layers at multiple scales showed a fractal feature, and that the layer thickness at each scale followed with an exponential probability distribution, whose exponential coefficient was - 3.38, -1.91, -1.65, -1.21, corresponding to meter scale, decimeter scale, centimeter scale and millimeter scale respectively. The fitting curves indicated that the majority of laminas at each scale were relatively thin, and the thicker the layer, the less the number of layers contained in shale. Finally, the lamination models were constructed and superposed over the joint network model to generate 3-D geological structure models at various scales. The models were validated by reproducing fracture and lamina parameters fairly close to those obtained from realistic geological bodies in the study area. The findings of this work could provide a more reliable geological model for the numerical simulation and physical model test of hydraulic fracturing in shale gas reservoir.
WOS关键词GAS SHALES ; ROCK ; BEHAVIOR ; IDENTIFICATION ; SIMULATION ; RESERVOIRS ; HISTORY ; BARNETT
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10030101] ; National Natural Science Foundation of China[41641025] ; National Natural Science Foundation of China[41372322] ; Scholarship Fund from China Scholarship Council[201704910008]
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:000443670600021
出版者ELSEVIER SCIENCE BV
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Scholarship Fund from China Scholarship Council ; Scholarship Fund from China Scholarship Council ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Scholarship Fund from China Scholarship Council ; Scholarship Fund from China Scholarship Council ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Scholarship Fund from China Scholarship Council ; Scholarship Fund from China Scholarship Council ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Scholarship Fund from China Scholarship Council ; Scholarship Fund from China Scholarship Council
源URL[http://ir.iggcas.ac.cn/handle/132A11/88458]  
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Li, Lihui; Huang, Beixiu
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Li, Lihui,Huang, Beixiu,Li, Yanyan,et al. Multi-scale modeling of shale laminas and fracture networks in the Yanchang formation, Southern Ordos Basin, China[J]. ENGINEERING GEOLOGY,2018,243:231-240.
APA Li, Lihui,Huang, Beixiu,Li, Yanyan,Hu, Ruilin,&Li, Xiao.(2018).Multi-scale modeling of shale laminas and fracture networks in the Yanchang formation, Southern Ordos Basin, China.ENGINEERING GEOLOGY,243,231-240.
MLA Li, Lihui,et al."Multi-scale modeling of shale laminas and fracture networks in the Yanchang formation, Southern Ordos Basin, China".ENGINEERING GEOLOGY 243(2018):231-240.

入库方式： OAI收割

来源：地质与地球物理研究所

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