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Fault Slip Potential (FSP)

A Program for Probabilistic Estimation of Fault Slip Potential Resulting from Fluid Injection


Overview

FSP is a tool developed to screen faults near injection wells and estimate the potential for fault slip induced by fluid injection. It uses probabilistic methods to estimate the cumulative probability of a fault slipping due to increased pore pressure.

Features

  • Probabilistic and Deterministic Models: FSP provides both deterministic and Monte Carlo probabilistic approaches for estimating fault slip.
  • Input Parameters: Supports input of fault strike, dip, well locations, injection rates, hydrologic parameters, and mechanical stress state parameters.
  • Hydrology Model: Includes a simplified radial flow hydrology model, allowing users to relate injection to pore pressure changes.
  • Monte Carlo Simulations: Uses Monte Carlo analysis to calculate probabilities of fault slip as a function of pore pressure increase.

How It Works

  1. Mohr-Coulomb Slip Criteria: FSP calculates pore pressure to slip on each fault using deterministic geomechanical modeling.
  2. Monte Carlo Analysis: Probabilistic simulations are run to yield the probability of each fault slipping, considering uncertainties in input parameters.
  3. Hydrology Model: The hydrology model assesses specific injection scenarios, providing pore pressure changes to be used in the fault slip analysis.
  4. Results: FSP produces visual outputs including Mohr diagrams, fault maps, and cumulative distribution functions (CDF) of fault slip probability.

Installation

FSP 2.0 requires a 64-bit Windows machine and the MATLAB Compiler Runtime (MCR) version 8.0. which is included in the download folder.

What's included in this download:

  1. This README file

  2. FSP_User_Guide.pdf, the code documentation

  3. MatlabCompilerRuntime_windows64Bit_installer.exe, the installer for MATLAB compiler runtime: install this on your 64 bit windows machine to be able to run the FSP program.

  4. FaultSlipPotential_2.0.exe , The FSP program, double click after MCR is installed.

  5. Folder with 3 example data formatted files, for if you want to load your own faults, wells or pressure models into the FSP program, format them like these 3 files.

MCR is can also be downloaded separately from the Mathworks website.

  1. Install the MATLAB Compiler Runtime (MCR).
  2. Run the FaultSlipPotential_2.0.exe file to launch the application.

Usage

A video on how to download, install, and use FSP can be found here: https://www.youtube.com/watch?v=lY0R-mt10zg

Licensing

FSP is licensed under the Apache License Version 2.0. Please refer to the LICENSE file for more details.

Notes

We are currently working on a new version of FSP. Subscribe to our newsletter to stay updated.


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