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Hydrothermal Dissolution of Deeply Buried Cambrian Dolomite Rocks and Porosity Generation: Integrated with Geological Studies and Reactive Transport Modeling in the Tarim Basin, China
Joint Authors
Wei, Wenwen
Chen, Daizhao
Qing, Hairuo
Qian, Yixiong
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-05-04
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
The burial dissolution of carbonate rocks has long been an interesting topic of reservoir geologists.
Integrated with geological studies and reactive transport modeling, this study investigated the Cambrian dolomites that were buried at depths up to 8408 m and still preserved a large amount of unfilled dissolution vugs from the borehole TS1 in the northern Tarim Basin.
Studies indicate that these vugs were formed in association with fault-channeled hydrothermal fluids from greater depth through “retrograde dissolution” as the fluid temperature dropped during upward migration.
The reactive transport modeling results suggest an important control of the vertical permeability of wall-rock on fluid and temperature patterns which, in turn, would control the spatial distribution of dissolving-originated porosity.
The hydrothermal dissolution mainly occurred in dolomite wall-rocks with higher vertical permeability (extensive development of tensional fractures and connected pore spaces), producing additional dissolved porosity there during deep burial.
This study implicates the importance of multidisciplinary approaches for understanding the burial/hydrothermal dissolution of dolomite rocks and predicting favourable deep/ultradeep carbonate reservoirs.
American Psychological Association (APA)
Wei, Wenwen& Chen, Daizhao& Qing, Hairuo& Qian, Yixiong. 2017. Hydrothermal Dissolution of Deeply Buried Cambrian Dolomite Rocks and Porosity Generation: Integrated with Geological Studies and Reactive Transport Modeling in the Tarim Basin, China. Geofluids،Vol. 2017, no. 2017, pp.1-19.
https://search.emarefa.net/detail/BIM-1155985
Modern Language Association (MLA)
Wei, Wenwen…[et al.]. Hydrothermal Dissolution of Deeply Buried Cambrian Dolomite Rocks and Porosity Generation: Integrated with Geological Studies and Reactive Transport Modeling in the Tarim Basin, China. Geofluids No. 2017 (2017), pp.1-19.
https://search.emarefa.net/detail/BIM-1155985
American Medical Association (AMA)
Wei, Wenwen& Chen, Daizhao& Qing, Hairuo& Qian, Yixiong. Hydrothermal Dissolution of Deeply Buried Cambrian Dolomite Rocks and Porosity Generation: Integrated with Geological Studies and Reactive Transport Modeling in the Tarim Basin, China. Geofluids. 2017. Vol. 2017, no. 2017, pp.1-19.
https://search.emarefa.net/detail/BIM-1155985
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1155985