IGGCAS OpenIR  > 油气资源研究院重点实验室
Spectral Decomposition and a Waveform Cluster to Characterize Strongly Heterogeneous Paleokarst Reservoirs in the Tarim Basin, China
Shan, Xiaocai1,2,3; Tian, Fei1,2,3; Cheng, Fuqi4; Yang, Changchun1,2,3; Xin, Wei1,2,3
2019-02-01
Source PublicationWATER
ISSN2073-4441
Volume11Issue:2Pages:21
AbstractThe main components of the Ordovician carbonate reservoirs in the Tahe Oilfield are paleokarst fracture-cavity paleo-channel systems formed by karstification. Detailed characterization of these paleokarst reservoirs is challenging because of heterogeneities in characteristics and strong vertical and lateral non-uniformities. Traditional seismic analysis methods are not able to solve the identification problem of such strongly heterogeneous reservoirs. Recent developments in seismic interpretation have heightened the need to describe the fracture-cavity structure of a paleo-channel with more accuracy. We propose a new prediction model for fracture-cavity carbonate reservoirs based on spectral decomposition and a waveform cluster. By the Matching Pursuit decomposition algorithm, the single-frequency data volumes are obtained. The specific frequency data volume that is the most sensitive to the reservoir is chosen based on seismic synthesis traces of well-logging data and geological interpretability. The waveform cluster is then applied to delineate the complex paleokarst systems, particularly the fracture-caves in the runoff zone. This method was applied to the area around Well T615 in the Tahe oilfield, and a paleokarst fracture-cavity system with strong heterogeneity in the runoff zone was delineated and characterized. The findings of this research provide insights for predicting other similar karst systems, such as karstic groundwater and karst hydrogeological systems.
Keywordkarst system Ordovician carbonate spectral decomposition waveform cluster seismic interpretation paleo-channels
DOI10.3390/w11020256
Funding OrganizationChinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese National Major Fundamental Research Developing Project ; Chinese National Major Fundamental Research Developing Project ; China Postdoctoral Foundation ; China Postdoctoral Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese National Major Fundamental Research Developing Project ; Chinese National Major Fundamental Research Developing Project ; China Postdoctoral Foundation ; China Postdoctoral Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese National Major Fundamental Research Developing Project ; Chinese National Major Fundamental Research Developing Project ; China Postdoctoral Foundation ; China Postdoctoral Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese National Major Fundamental Research Developing Project ; Chinese National Major Fundamental Research Developing Project ; China Postdoctoral Foundation ; China Postdoctoral Foundation
WOS KeywordTAHE OIL-FIELD ; MATCHING PURSUIT ; S-TRANSFORM ; CARBONATE RESERVOIRS ; TABEI UPLIFT ; SEISMIC DATA ; NW CHINA ; ORDOVICIAN ; ORIGIN ; SYSTEM
Language英语
Funding ProjectChinese National Natural Science Foundation[41502149] ; Chinese National Natural Science Foundation[U1663204] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14050101] ; Chinese National Major Fundamental Research Developing Project[2017ZX05008-004] ; China Postdoctoral Foundation[2015M570148]
Funding OrganizationChinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese National Major Fundamental Research Developing Project ; Chinese National Major Fundamental Research Developing Project ; China Postdoctoral Foundation ; China Postdoctoral Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese National Major Fundamental Research Developing Project ; Chinese National Major Fundamental Research Developing Project ; China Postdoctoral Foundation ; China Postdoctoral Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese National Major Fundamental Research Developing Project ; Chinese National Major Fundamental Research Developing Project ; China Postdoctoral Foundation ; China Postdoctoral Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese National Major Fundamental Research Developing Project ; Chinese National Major Fundamental Research Developing Project ; China Postdoctoral Foundation ; China Postdoctoral Foundation
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000460899600075
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/91099
Collection油气资源研究院重点实验室
Corresponding AuthorTian, Fei
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.China Univ Petr, Sch Geosci, Qingdao 266580, Peoples R China
Recommended Citation
GB/T 7714
Shan, Xiaocai,Tian, Fei,Cheng, Fuqi,et al. Spectral Decomposition and a Waveform Cluster to Characterize Strongly Heterogeneous Paleokarst Reservoirs in the Tarim Basin, China[J]. WATER,2019,11(2):21.
APA Shan, Xiaocai,Tian, Fei,Cheng, Fuqi,Yang, Changchun,&Xin, Wei.(2019).Spectral Decomposition and a Waveform Cluster to Characterize Strongly Heterogeneous Paleokarst Reservoirs in the Tarim Basin, China.WATER,11(2),21.
MLA Shan, Xiaocai,et al."Spectral Decomposition and a Waveform Cluster to Characterize Strongly Heterogeneous Paleokarst Reservoirs in the Tarim Basin, China".WATER 11.2(2019):21.
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