Analysis of a Complex Faulted CO2 Reservoir Using a Three-dimensional Hydro-geochemical-Mechanical Approach

Nguyen, Ba Nghiep; Hou, Zhangshuan; Bacon, Diana H.; Last, George V.; White, Mark D.

doi:10.1016/j.egypro.2017.03.1479

Title: Analysis of a Complex Faulted CO₂ Reservoir Using a Three-dimensional Hydro-geochemical-Mechanical Approach

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Abstract

This work applies a three-dimensional (3D) multiscale approach recently developed to analyze a complex CO₂ faulted reservoir that includes some key geological features of the San Andreas and nearby faults. The approach couples the STOMP-CO2-R code for flow and reactive transport modeling to the ABAQUS^® finite element package for geomechanical analysis. The objective is to examine the coupled hydro-geochemical-mechanical impact on the risk of hydraulic fracture and fault slip in a complex and representative CO₂ reservoir that contains two nearly parallel faults. STOMP-CO2-R/ABAQUS^® coupled analyses of this reservoir are performed assuming extensional and compressional stress regimes to predict evolutions of fluid pressure, stress and strain distributions as well as potential fault failure and leakage of CO₂ along the fault damage zones. The tendency for the faults to slip and pressure margin to fracture are examined in terms of stress regime, mineral composition, crack distributions in the fault damage zones and geomechanical properties. Here, this model in combination with a detailed description of the faults helps assess the coupled hydro-geochemical-mechanical effect.

Authors:

Nguyen, Ba Nghiep ^[1]; Hou, Zhangshuan ^[1]; Bacon, Diana H. ^[1]; Last, George V. ^[1]; White, Mark D. ^[1]

Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Publication Date:: Fri Aug 18 00:00:00 EDT 2017

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1378024

Report Number(s):: PNNL-SA-121259
Journal ID: ISSN 1876-6102; AA7020000

Grant/Contract Number:: AC05-76RL01830

Resource Type:: Accepted Manuscript

Journal Name:: Energy Procedia

Additional Journal Information:: Journal Volume: 114; Journal Issue: C; Journal ID: ISSN 1876-6102

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 58 GEOSCIENCES; CO2 reservoir; fault; geomechanical modeling; mineralogy; geochemistry; homogenization; stress regime

Citation Formats


                    Nguyen, Ba Nghiep, Hou, Zhangshuan, Bacon, Diana H., Last, George V., and White, Mark D. Analysis of a Complex Faulted CO2 Reservoir Using a Three-dimensional Hydro-geochemical-Mechanical Approach.  United States: N. p., 2017. 
Web.  doi:10.1016/j.egypro.2017.03.1479.

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                    Nguyen, Ba Nghiep, Hou, Zhangshuan, Bacon, Diana H., Last, George V., & White, Mark D. Analysis of a Complex Faulted CO2 Reservoir Using a Three-dimensional Hydro-geochemical-Mechanical Approach.  United States.  https://doi.org/10.1016/j.egypro.2017.03.1479

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                    Nguyen, Ba Nghiep, Hou, Zhangshuan, Bacon, Diana H., Last, George V., and White, Mark D. Fri .  
"Analysis of a Complex Faulted CO2 Reservoir Using a Three-dimensional Hydro-geochemical-Mechanical Approach".  United States.  https://doi.org/10.1016/j.egypro.2017.03.1479.  https://www.osti.gov/servlets/purl/1378024.

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@article{osti_1378024,

  title        = {Analysis of a Complex Faulted CO2 Reservoir Using a Three-dimensional Hydro-geochemical-Mechanical Approach},

  author       = {Nguyen, Ba Nghiep and Hou, Zhangshuan and Bacon, Diana H. and Last, George V. and White, Mark D.},

  abstractNote = {This work applies a three-dimensional (3D) multiscale approach recently developed to analyze a complex CO2 faulted reservoir that includes some key geological features of the San Andreas and nearby faults. The approach couples the STOMP-CO2-R code for flow and reactive transport modeling to the ABAQUS® finite element package for geomechanical analysis. The objective is to examine the coupled hydro-geochemical-mechanical impact on the risk of hydraulic fracture and fault slip in a complex and representative CO2 reservoir that contains two nearly parallel faults. STOMP-CO2-R/ABAQUS® coupled analyses of this reservoir are performed assuming extensional and compressional stress regimes to predict evolutions of fluid pressure, stress and strain distributions as well as potential fault failure and leakage of CO2 along the fault damage zones. The tendency for the faults to slip and pressure margin to fracture are examined in terms of stress regime, mineral composition, crack distributions in the fault damage zones and geomechanical properties. Here, this model in combination with a detailed description of the faults helps assess the coupled hydro-geochemical-mechanical effect.},

  doi          = {10.1016/j.egypro.2017.03.1479},

  journal      = {Energy Procedia},

  number       = C,

  volume       = 114,

  place        = {United States},

  year         = {Fri Aug 18 00:00:00 EDT 2017},

  month        = {Fri Aug 18 00:00:00 EDT 2017}

}

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Title: Analysis of a Complex Faulted CO2 Reservoir Using a Three-dimensional Hydro-geochemical-Mechanical Approach

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Title: Analysis of a Complex Faulted CO₂ Reservoir Using a Three-dimensional Hydro-geochemical-Mechanical Approach