Discrete Element Analysis for Hydraulic Fracture Propagations in Laminated Reservoirs with Complex Initial Joint Properties
Joint Authors
Dou, Fakai
Wang, J. G.
Wang, Huimin
Hu, Bowen
Li, Chengxuan
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-23, 23 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-07
Country of Publication
Egypt
No. of Pages
23
Main Subjects
Abstract EN
Previous studies on hydraulic fracturing mainly focus on the effects of the in-situ stress state, permeability, fracturing fluids, and approach angle in homogeneous rocks, but the impacts of joint mechanical properties in laminated shale reservoirs on the propagation and formation of the fracture network are still unclear.
In this study, a coupled fluid-mechanical model was developed to investigate the impacts of joint mechanical properties on hydraulic fracture propagation.
Then, this model was validated with Blanton’s criterion and some experimental observations on fracture morphology.
Finally, a series of numerical simulations were conducted to comparatively analyze the impacts of joint mechanical properties on the total crack number, the percentage and distribution of each fracture type, the process of crack propagation, and the final fracture morphology.
Numerical results show that the cracking behaviors induced by joint mechanical properties vary with the approach angle.
Joint strength has a significant influence on the generation of matrix tensile cracks.
The tensile-to-shear strength ratio plays an even more important role in the shear slips of bedding planes and is conducive to the formation of complex fracture morphology.
American Psychological Association (APA)
Dou, Fakai& Wang, J. G.& Wang, Huimin& Hu, Bowen& Li, Chengxuan. 2019. Discrete Element Analysis for Hydraulic Fracture Propagations in Laminated Reservoirs with Complex Initial Joint Properties. Geofluids،Vol. 2019, no. 2019, pp.1-23.
https://search.emarefa.net/detail/BIM-1153174
Modern Language Association (MLA)
Dou, Fakai…[et al.]. Discrete Element Analysis for Hydraulic Fracture Propagations in Laminated Reservoirs with Complex Initial Joint Properties. Geofluids No. 2019 (2019), pp.1-23.
https://search.emarefa.net/detail/BIM-1153174
American Medical Association (AMA)
Dou, Fakai& Wang, J. G.& Wang, Huimin& Hu, Bowen& Li, Chengxuan. Discrete Element Analysis for Hydraulic Fracture Propagations in Laminated Reservoirs with Complex Initial Joint Properties. Geofluids. 2019. Vol. 2019, no. 2019, pp.1-23.
https://search.emarefa.net/detail/BIM-1153174
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1153174