IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
Distribution characteristics and controlling factors of vertical joint spacing in sand-mud interbedded strata
Bao, Han1,2; Zhai, Yong1; Lan, Hengxing3,4; Zhang, Keke1; Qi, Qun1; Yan, Changgen1
2019-11-01
Source PublicationJOURNAL OF STRUCTURAL GEOLOGY
ISSN0191-8141
Volume128Pages:13
AbstractNearly 3,600 vertical joints were measured In sand-mud interbedded rock masses from 30 outcrops in the Yan'an area, China. Information such as joint spacing, joint aperture and the thickness of sandstone formations was obtained. Results show that the vertical joints are well developed in the study areas, and the fracture spacing tolayer thickness ratio (S/T) can reach 0.79. The joint spacing has a strong positive linear relationship with the thickness of the sandstone layer and presents a lognormal distribution in each sandstone layer. However, the morphology of the lognormal distribution is related to the degree of joint development; the higher the degree of joint development, the smaller skewness of the joint spacing distribution. In addition, although the value of S/T for saturate joint is generally 0.8-1.2, the vertical joints may reach saturation at greater S/T by penetrating multiple layers of sandstone when the intervening soft layer is thin.
KeywordSand-mud interbedded strata Vertical joint statistics Joint spacing distribution Fracture spacing to layer thickness ratio Joint saturation
DOI10.1016/j.jsg.2019.103886
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities, CHD ; Fundamental Research Funds for the Central Universities, CHD ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities, CHD ; Fundamental Research Funds for the Central Universities, CHD ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities, CHD ; Fundamental Research Funds for the Central Universities, CHD ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities, CHD ; Fundamental Research Funds for the Central Universities, CHD
WOS KeywordLAYERED ROCKS ; CROSS JOINTS ; FRACTURES ; FREQUENCY ; THICKNESS ; SHALE ; MODEL ; BASIN
Language英语
Funding ProjectNational Natural Science Foundation of China[41790443] ; National Natural Science Foundation of China[41807246] ; Natural Science Foundation of Shaanxi Province[2018JQ4017] ; Fundamental Research Funds for the Central Universities, CHD[300102219217]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities, CHD ; Fundamental Research Funds for the Central Universities, CHD ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities, CHD ; Fundamental Research Funds for the Central Universities, CHD ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities, CHD ; Fundamental Research Funds for the Central Universities, CHD ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Fundamental Research Funds for the Central Universities, CHD ; Fundamental Research Funds for the Central Universities, CHD
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000493220900008
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95725
Collection页岩气与地质工程院重点实验室
Corresponding AuthorBao, Han; Zhai, Yong
Affiliation1.Changan Univ, Sch Highway, Middle Sect Naner Hum Rd, Xian 710064, Shaanxi, Peoples R China
2.Shandong Univ Sci & Technol, Shandong Prov Key Lab Deposit Mineralizat & Sedim, Qingdao 266590, Shandong, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
4.Changan Univ, Sch Geol Engn & Geomat, Xian 710064, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Bao, Han,Zhai, Yong,Lan, Hengxing,et al. Distribution characteristics and controlling factors of vertical joint spacing in sand-mud interbedded strata[J]. JOURNAL OF STRUCTURAL GEOLOGY,2019,128:13.
APA Bao, Han,Zhai, Yong,Lan, Hengxing,Zhang, Keke,Qi, Qun,&Yan, Changgen.(2019).Distribution characteristics and controlling factors of vertical joint spacing in sand-mud interbedded strata.JOURNAL OF STRUCTURAL GEOLOGY,128,13.
MLA Bao, Han,et al."Distribution characteristics and controlling factors of vertical joint spacing in sand-mud interbedded strata".JOURNAL OF STRUCTURAL GEOLOGY 128(2019):13.
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