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Prediction of Fracture Toughness in the Shale Formation Based on Well Logging and Seismic Data: A Case Study of the Lower Silurian Longmaxi Formation in the Sichuan Basin, China
Joint Authors
Li, Le
Zhang, Xi
Xiong, Jian
Fan, Xiao
Liu, Kaiyuan
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-12-01
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The rock physics experiments and fracture toughness tests of shales from the Lower Silurian Longmaxi Formation in the Sichuan Basin in China were carried out.
Based on this, the calculation model of the fracture toughness was constructed, thus, the single well evaluation of the fracture toughness in shale formation would be obtained based on the well logging data, which can be used to summarize the spatial distribution characteristics of the fracture toughness in the shale formation.
However, it is difficult to obtain transverse distribution characteristics of fracture toughness in shale formation based solely on the well logging data.
Therefore, in order to investigate the spatial distribution of the fracture toughness, jointing well logging and seismic method could be adopted to quantitatively predict the fracture toughness in shale formation.
The results show that fracture toughness of shales is sensitive to acoustic interval transit time and wave impedance.
The prediction model of the fracture toughness of shales was constructed, which had a good prediction effect.
The fracture toughness values of shales from the Upper Silurian Wufeng-Longmaxi Formation were larger, whereas those of shales from the Lower Silurian Wufeng-Longmaxi Formation were lower.
The fracture toughness is mainly distributed in strips along the vertical direction while the distribution area is continuous in the lateral direction, indicating that it has obvious stratification characteristics.
American Psychological Association (APA)
Liu, Kaiyuan& Xiong, Jian& Zhang, Xi& Fan, Xiao& Li, Le. 2020. Prediction of Fracture Toughness in the Shale Formation Based on Well Logging and Seismic Data: A Case Study of the Lower Silurian Longmaxi Formation in the Sichuan Basin, China. Geofluids،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1166434
Modern Language Association (MLA)
Liu, Kaiyuan…[et al.]. Prediction of Fracture Toughness in the Shale Formation Based on Well Logging and Seismic Data: A Case Study of the Lower Silurian Longmaxi Formation in the Sichuan Basin, China. Geofluids No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1166434
American Medical Association (AMA)
Liu, Kaiyuan& Xiong, Jian& Zhang, Xi& Fan, Xiao& Li, Le. Prediction of Fracture Toughness in the Shale Formation Based on Well Logging and Seismic Data: A Case Study of the Lower Silurian Longmaxi Formation in the Sichuan Basin, China. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1166434
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1166434