slimgroup / tl-fwpi.jl

Time-lapse full-waveform permeability inversion: A feasibility study

Time-lapse full-waveform permeability inversion: a feasibility study

Code to reproduce results in Ziyi Yin, Mathias Louboutin, Olav Møyner, Felix J. Herrmann, "Time-lapse full-waveform permeability inversion: a feasibility study". DOI: 10.48550/arXiv.2403.04083

Software descriptions

All of the software packages used in this paper are fully open source, scalable, interoperable, and differentiable. The readers are welcome to learn about our software design principles from this open-access article.

Wave modeling

We use JUDI.jl for wave modeling and inversion, which calls the highly optimized propagators of Devito.

Multiphase flow

We use JutulDarcyRules.jl to solve the multiphase flow equations, which calls the high-performant and auto-differentiable numerical solvers in Jutul.jl and JutulDarcy.jl. JutulDarcyRules.jl is designed to interoperate these two packages with other Julia packages in the Julia AD ecosystem via ChainRules.jl.

Installation

First, install Julia and Python. The scripts will contain package installation commands at the beginning so the packages used in the experiments will be automatically installed.

Scripts

case-1.jl runs end-to-end permeability inversion with a homogeneous initial permeability model.

case-2.jl runs end-to-end permeability inversion with a distorted initial permeability model.

baseline-FWI.jl runs full-waveform inversion to estimate the baseline brine-filled velocity model.

case-3.jl uses the inverted baseline brine-filled velocity model obtained above to run end-to-end permeability inversion.

case-4.jl jointly inverts porosity and permeability models with a constraint between them based on Kozeny-Carman relationship.

LICENSE

The software used in this repository can be modified and redistributed according to MIT license.

Reference

If you use our software for your research, we appreciate it if you cite us following the bibtex in CITATION.bib.

Authors

This repository is written by Ziyi Yin from the Seismic Laboratory for Imaging and Modeling (SLIM) at the Georgia Institute of Technology.

If you have any question, we welcome your contributions to our software by opening issue or pull request.

SLIM Group @ Georgia Institute of Technology, https://slim.gatech.edu.
SLIM public GitHub account, https://github.com/slimgroup.