Coupled Investigation of Fracture Permeability Impact on Reservoir Stress and Seismic Slip Behavior

Technical Report · Wed Aug 30 04:00:00 EDT 2023

DOI:https://doi.org/10.2172/1999730· OSTI ID:1999730

Kroll, Kayla A. ^[1]; Smith, M. M. ^[1]; Hao, Y. ^[1]; Davila, G. ^[1]; Fei, F. ^[1]; Wang, C. ^[1]; Kottkamp, W. ^[1]; Frash, L. ^[2]; Iyare, U. ^[2]; Burghardt, J. ^[3]; Fischera, M. ^[3]; Marone, C. ^[4]; Richards-Dinger, K ^[1]

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1. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
2. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
3. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
4. Pennsylvania State Univ., University Park, PA (United States)

Our goal is to develop, apply and validate a holistic thermal, hydrologic, mechanical, and chemical (THMC) workflow that includes evaluation of induced seismic slip in EGS reservoirs. We will integrate experimental and modeling approaches to reduce parameter uncertainty and better predict/mitigate seismic hazard at EGS sites. Our novel approach couples 3D physics-based earthquake simulations with THMC models (THMc+E). This capability will enable improve engineering decisions at Utah-FORGE and move EGS operations toward repeatable, robust, economically viable, and socially accepted development. For example, our THMC+E models will predict circulation scenarios and related seismic hazard for a suite of flow rates and under uncertainty, thus enabling evaluation of optimal circulation strategy. Laboratory experiments will be performed to constrain key model parameters and Bayesian techniques will provide a probabilistic evaluation of parameters used in models. THMC+E simulations will enable exploration various circumstances that may hinder EGS success and develop mitigation strategies.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC52-07NA27344
• OSTI ID: 1999730
• Report Number(s): LLNL--TR-853796; 1081632
• Country of Publication: United States
• Language: English

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58 GEOSCIENCES