A Pore-Scale Simulation on Thermal-Hydromechanical Coupling Mechanism of Rock-Reference-Cited by-同舟云学术

A Pore-Scale Simulation on Thermal-Hydromechanical Coupling Mechanism of Rock

Published:2017 Issue: Volume:2017 Page:1-12
ISSN:1468-8115
Container-title:Geofluids
language:en
Short-container-title:Geofluids

Author:

Song Rui¹^ORCID,Cui Mengmeng²,Liu Jianjun¹³^ORCID,Ranjith P. G.⁴,Lei Yun¹⁵

Affiliation:

1. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China

2. School of Petroleum and Natural Gas Engineering, Southwest Petroleum University, Chengdu 610500, China

3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China

4. Deep Earth Energy Research Laboratory, Department of Civil Engineering, Monash University, Melbourne, VIC 3800, Australia

5. Shenyang Research Institute, China Coal Technology & Engineering Group Corp., Shenyang 110016, China

Abstract

Thermal-hydromechanical (THM) coupling process is a key issue in geotechnical engineering emphasized by many scholars. Most existing studies are conducted at macroscale or mesoscale. This paper presents a pore-scale THM coupling study of the immiscible two-phase flow in the perfect-plastic rock. Assembled rock matrix and pore space models are reconstructed using micro-CT image. The rock deformation and fluid flow are simulated using ANSYS and CFX software, respectively, in which process the coupled physical parameters will be exchanged by ANSYS multiphysics platform at the end of each iteration. Effects of stress and temperature on the rock porosity, permeability, microstructure, and the displacing mechanism of water flooding process are analyzed and revealed.

Funder

National Science and Technology Major Project of China

Publisher

Hindawi Limited

Subject

General Earth and Planetary Sciences

Link

http://downloads.hindawi.com/journals/geofluids/2017/7510527.pdf

Reference43 articles.

1. Fractured rock stress-permeability relationships from in situ data and effects of temperature and chemical-mechanical couplings

2. Reactive transport and thermo-hydro-mechanical coupling in deep sedimentary basins affected by glaciation cycles: model development, verification, and illustrative example

3. Numerical simulation of the heat extraction in EGS with thermal-hydraulic-mechanical coupling method based on discrete fractures model