3D simulation of fluid-pressure-induced fracture nucleation and growth in rock samples

A. Lisjak, O. K. Mahabadi, B. S. A. Tatone, Khalid Alruwaili, Gary Douglas Couples, Jingsheng Ma, A. Al-Nakhli

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

4 Citations (Scopus)

Abstract

Fluid-pressure-driven (or hydraulic) fracturing of rocks is used in several applications including stimulation of unconventional reservoirs, permeability enhancement of geothermal systems, and rock mass pre-conditioning in deep mining. In recent years, there has been a fast growing interest in the development and use of advanced numerical methods to better describe hydraulic fracturing processes. In this paper, recent advances in hydraulic fracturing modeling using a three-dimensional hybrid finite-discrete element (FDEM) code are presented. FDEM is an explicit numerical method which combines continuum mechanics principles with discrete element algorithms to simulate multiple interacting deformable fracturable solids. The effectiveness of the approach is illustrated by simulating two cases of fracture nucleation and growth around a pressurized cylindrical cavity in a homogeneous and isotropic medium. Realistic emergent pressure response and fracture patterns are obtained with the simulated fracture networks highlighting a distinctive 3D interaction of individual fractures around the location of injection.

Original languageEnglish
Title of host publication49th US Rock Mechanics / Geomechanics Symposium 2015
PublisherAmerican Rock Mechanics Association
Pages1168-1175
Number of pages8
Volume2
ISBN (Electronic)9781510810518
Publication statusPublished - 2015
Event49th US Rock Mechanics / Geomechanics Symposium - San Francisco, United States
Duration: 29 Jun 20151 Jul 2015

Conference

Conference49th US Rock Mechanics / Geomechanics Symposium
CountryUnited States
CitySan Francisco
Period29/06/151/07/15

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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