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Applying principal component analysis to seismic attributes for interpretation of evaporite facies: Lower Triassic Jialingjiang Formation, Sichuan Basin, China

文献类型：期刊论文

作者Hu, Suyun1; Zhao, Wenzhi1; Xu, Zhaohui1,2; Zeng, Hongliu2; Fu, Qilong; Jiang, Lei2,3; Shi, Shuyuan1; Wang, Zecheng1; Liu, Wei1
刊名INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION
出版日期2017-11-01
卷号5期号:4页码:T461-T475
ISSN号2324-8858
DOI10.1190/INT-2017-0004.1
文献子类Article
英文摘要In China and elsewhere, it is important to predict different lithologies and lithofacies for hydrocarbon exploration in a mixed evaporite-carbonate-siliciclastic system. The lower section of the second member of the Jialingjiang Formation (T1j2L) is mainly composed of anhydrite, dolostone, limestone, and siliciclastic rocks, providing a rare opportunity to reconstruct detailed facies in a 2500 km(2) 3D seismic survey with 31 wells. Wireline logs (sonic, density, and gamma ray) calibrated by core analysis are essential in distinguishing anhydrite, siliciclastics, and carbonates. Although different lithologies are characterized by different acoustic impedance (AI), with certain overlapping, it is still difficult to predict lithology by any single seismic attribute because of the limited seismic resolution in a thinly interbedded formation of multiple lithologies. In our study, principal component analysis (PCA) was applied to extract lithologic information from selected seismic attributes; the first two principal components were used to predict the content of anhydrite, siliciclastics, and carbonates. Content maps of anhydrite, siliciclastics, and carbonates - created by mixing the represented color - were used to reconstruct lithofacies of the T1j2L submember. It is quite difficult, even with the PCA approach, to uniquely resolve the three lithologies due to the overlapped AI and the limited resolution of the seismic data. However, the workflow that we evaluated dramatically improved the prediction accuracy of lithology and lithofacies. Facies transition during the deposition of the T1j2L submember in the study area was inferred from a paleo-uplift in the southwest to a restricted lagoon and then to an open marine setting in the northeast.
WOS关键词NORWEGIAN BARENTS SEA ; CARBONATE RESERVOIRS ; FINNMARK PLATFORM ; REFLECTION DATA ; ARABIAN GULF ; GAS-FIELD ; STRATIGRAPHY ; ARCHITECTURE ; RESOLUTION ; SOUTHERN
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000412938100014
出版者SOC EXPLORATION GEOPHYSICISTS
资助机构Research Institute of Petroleum Exploration and Development (RIPED), PetroChina, CNPC(UTA14-001294/15HT10500000010 ; 2016ZX05004 ; 2014-E32-01 ; 2016B-0401) ; Research Institute of Petroleum Exploration and Development (RIPED), PetroChina, CNPC(UTA14-001294/15HT10500000010 ; 2016ZX05004 ; 2014-E32-01 ; 2016B-0401) ; Research Institute of Petroleum Exploration and Development (RIPED), PetroChina, CNPC(UTA14-001294/15HT10500000010 ; 2016ZX05004 ; 2014-E32-01 ; 2016B-0401) ; Research Institute of Petroleum Exploration and Development (RIPED), PetroChina, CNPC(UTA14-001294/15HT10500000010 ; 2016ZX05004 ; 2014-E32-01 ; 2016B-0401)
源URL[http://ir.iggcas.ac.cn/handle/132A11/61986]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Hu, Suyun
作者单位1.PetroChina Res Inst Petr Explorat & Dev, Beijing, Peoples R China
2.Univ Texas Austin, Bur Econ Geol, Jackson Sch Geosci, Austin, TX USA
3.Chinese Acad Sci, Key Lab Petr Resources Res, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Hu, Suyun,Zhao, Wenzhi,Xu, Zhaohui,et al. Applying principal component analysis to seismic attributes for interpretation of evaporite facies: Lower Triassic Jialingjiang Formation, Sichuan Basin, China[J]. INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION,2017,5(4):T461-T475.
APA Hu, Suyun.,Zhao, Wenzhi.,Xu, Zhaohui.,Zeng, Hongliu.,Fu, Qilong.,...&Liu, Wei.(2017).Applying principal component analysis to seismic attributes for interpretation of evaporite facies: Lower Triassic Jialingjiang Formation, Sichuan Basin, China.INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION,5(4),T461-T475.
MLA Hu, Suyun,et al."Applying principal component analysis to seismic attributes for interpretation of evaporite facies: Lower Triassic Jialingjiang Formation, Sichuan Basin, China".INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION 5.4(2017):T461-T475.

入库方式： OAI收割

来源：地质与地球物理研究所

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