Title: Hydromechanical Modeling of Fault Rupture in Geologic CO 2 Sequestration: A Comparison of Two Failure Criteria

Journal Article · · Geophysical Research Letters
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  1. Energy Geosciences Division Lawrence Berkeley National Laboratory Berkeley CA USA
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Abstract The large‐scale implementation of geological carbon sequestration has raised concerns about potential fault activation and induced seismicity, which could compromise storage integrity and pose seismic risks. We theoretically compared two failure criteria, Mohr‐Coulomb (MC) and Modified Cam‐Clay criteria (MCC), to assess fault rupture during CO 2 storage. Both criteria characterize fault behavior in a specific stress regime but differ in reducing the complexity of fault rupture to a few key mechanisms. Using a coupled hydromechanical model, we demonstrate that the choice of a failure criterion and the physics of fault weakening associated with these criteria strongly condition fault response to a given fluid injection. MC mainly relates rupture to friction, while MCC relates rupture to fault poro‐plasticity. Our findings highlight that the selection of a failure criterion, being inherently subjective, can significantly alter the predicted fault behavior during CO 2 storage, thereby impacting the reliability of geomechanical risk assessments.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2566937
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 10 Vol. 52; ISSN 0094-8276
Publisher:
American Geophysical Union (AGU)Copyright Statement
Country of Publication:
United States
Language:
English

References (29)

Geomechanical analysis of fluid injection and seismic fault slip for the M w 4.8 Timpson, Texas, earthquake sequence : GEOMECHANICS OF FLUID INJECTION TIMPSON journal April 2016
Permeability Variations Associated With Fault Reactivation in a Claystone Formation Investigated by Field Experiments and Numerical Simulations journal February 2018
Effects of fault-zone architecture on earthquake magnitude and gas leakage related to CO 2 injection in a multi-layered sedimentary system : Modeling and Analysis: Effects of fault architecture related to CO journal January 2014
TOUGH3: A new efficient version of the TOUGH suite of multiphase flow and transport simulators journal November 2017
Coupled hydromechanical modeling of CO2 sequestration in deep saline aquifers journal December 2010
Hydromechanical characterization of CO2 injection sites journal November 2013
Modeling of induced seismicity and ground vibrations associated with geologic CO2 storage, and assessing their effects on surface structures and human perception journal May 2014
Coupled geomechanical analysis of irreversible compaction impact on CO2 storage in a depleted reservoir journal June 2024
Numerical modeling of hydraulic stimulation of fractured crystalline rock at the bedretto underground laboratory for geosciences and geoenergies journal April 2024
Geomechanical analysis of the influence of CO 2 injection location on fault stability journal December 2016
The deformation of porous sandstones; are Byerlee friction and the critical state line equivalent? journal November 2012
The effects of lateral property variations on fault-zone reactivation by fluid pressurization: Application to CO2 pressurization effects within major and undetected fault zones journal May 2014
Shale fault zone structure and stress dependent anisotropic permeability and seismic velocity properties (Opalinus Clay, Switzerland) journal March 2021
Evaluation of the Modified Cam Clay model in basin and petroleum system modeling (BPSM) loading conditions journal February 2020
A general framework for the occurrence and faulting of deformation bands in porous granular rocks journal December 2005
Elastodynamic analysis for slow tectonic loading with spontaneous rupture episodes on faults with rate- and state-dependent friction journal October 2000
New insights on stress rotations from a forward regional model of the San Andreas fault system near its Big Bend in southern California journal August 2004
Impact of CO 2 geological sequestration on the nucleation of earthquakes : CO journal September 2011
Role of Well Operations and Multiphase Geomechanics in Controlling Fault Stability During CO 2 Storage and Enhanced Oil Recovery journal July 2019
Interface Plastic Constitutive Law With End‐Cap and Structural Model Applied to Geological Faults Behavior journal August 2020
Conditions for Triggering Seismic Ruptures and/or Slow Slip Events in the Framework of a Poro‐Plastic Fault Zone Model journal August 2020
Coupled Hydromechanical Modeling of Induced Seismicity From CO2 Injection in the Illinois Basin journal April 2022
Top-seal leakage through faults and fractures: the role of mudrock properties journal January 1999
A review of the engineering behaviour of soils and rocks with respect to groundwater journal January 1986
Technical databook for geothermal energy utilization report June 1981
Density of aqueous solutions of CO2 report October 2001
ECO2N: A TOUGH2 Fluid Property Module for Mixtures of Water, NaCl,and CO2 report August 2005
Physical properties of the coexisting phases and thermochemical properties of the H2O component in boiling NaCl solutions report January 1976
An Assessment of the Net Fluid Balance in the Alberta Basin journal February 2022

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