Version 1
: Received: 20 May 2018 / Approved: 22 May 2018 / Online: 22 May 2018 (05:04:47 CEST)
How to cite:
Zhu, Y.; Liu, X.; Wang, E.; Wang, S.; Zhong, J. Influence of Single Fracture Inclination on Fault Activation. Preprints2018, 2018050282. https://doi.org/10.20944/preprints201805.0282.v1
Zhu, Y.; Liu, X.; Wang, E.; Wang, S.; Zhong, J. Influence of Single Fracture Inclination on Fault Activation. Preprints 2018, 2018050282. https://doi.org/10.20944/preprints201805.0282.v1
Zhu, Y.; Liu, X.; Wang, E.; Wang, S.; Zhong, J. Influence of Single Fracture Inclination on Fault Activation. Preprints2018, 2018050282. https://doi.org/10.20944/preprints201805.0282.v1
APA Style
Zhu, Y., Liu, X., Wang, E., Wang, S., & Zhong, J. (2018). Influence of Single Fracture Inclination on Fault Activation. Preprints. https://doi.org/10.20944/preprints201805.0282.v1
Chicago/Turabian Style
Zhu, Y., Sijing Wang and Jianwen Zhong. 2018 "Influence of Single Fracture Inclination on Fault Activation" Preprints. https://doi.org/10.20944/preprints201805.0282.v1
Abstract
Pre-existing fracture and secondary cracks in rock mass are formed by natural power, such as magma condensed to igneous rocks and tectonic movement. The orientation and inclination of these fractures obey certain laws relating to the stress, temperature, minerals, water and so on. Therefore, cracks react differently under the same external loading on the condition of various inclination, fissure apertures, stiffness and joint roughness. To simulate the crack propagation, experiments on hollow cylinder cut by one oblique interface mimicking single fracture accumulated numerous data discovering the failure criterion in accordance with the Mohr-Coulomb criterion. And theory on the Terzaghi’s effective principle take an essential role in controlling the behavior of triggering fault. This paper introduced a series of oblique plane cutting the cylinder regarded as fractures at different inclination to concentrate on how the fracture characteristics effect the stress and strain distribution inside the specimen, especially, the relationship between displacement and water head. The key point of this numerical simulation is coupling the solid phase and the fluid phase, specifically, the mechanic and seepage field. According to the statics, curves referring to deformation and water head could be described as increasing lines. Besides, simulation on coupling solid phase and fluid phase can supply crucial evaluation on activating existing fault, and thus predicting induced seismicity in reservoirs or estimating damage in shale gas exploration.
Keywords
hydraulic fracturing; hollow cylinder; single fracture; fault activation; induced seismicity
Subject
Environmental and Earth Sciences, Geophysics and Geology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
