Modeling of failure behavior of anisotropic shale using lattice discrete particle model

W. Li, C. Jin, M. Salviate, Gianluca Cusatis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Shale, like many other sedimentary rocks, is typically heterogeneous and anisotropic with partial alignment of anisotropic clay minerals and naturally formed bedding planes. A numerical method based on the lattice discrete particle model was formulated. Material anisotropy is introduced through an approximated geometric description of shale internal structure and a representation of material properties variation. Calibration was performed by comparing the numerical simulation results with experimental data. A series of simulated experiments, including elastic analysis, Brazilian tensile test and unconfined compression test, were demonstrated. Simulation results shows that the dependence of tested strength and failure modes on sample orientation can be captured successfully. This work will pave the way for the development of reliable hydraulic fracturing models that appropriately account for the mechanical behaviors of heterogeneous and anisotropic shale.

Original languageEnglish (US)
Title of host publication49th US Rock Mechanics / Geomechanics Symposium 2015
PublisherAmerican Rock Mechanics Association (ARMA)
Pages2899-2907
Number of pages9
Volume4
ISBN (Electronic)9781510810518
StatePublished - Jan 1 2015
Event49th US Rock Mechanics / Geomechanics Symposium - San Francisco, United States
Duration: Jun 29 2015Jul 1 2015

Other

Other49th US Rock Mechanics / Geomechanics Symposium
CountryUnited States
CitySan Francisco
Period6/29/157/1/15

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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    Li, W., Jin, C., Salviate, M., & Cusatis, G. (2015). Modeling of failure behavior of anisotropic shale using lattice discrete particle model. In 49th US Rock Mechanics / Geomechanics Symposium 2015 (Vol. 4, pp. 2899-2907). American Rock Mechanics Association (ARMA).