DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Inferring fracture dilation and shear slip from surface deformation utilising trained surrogate models

Journal Article · · International Journal of Rock Mechanics and Mining Sciences

An important task in energy and CO2 storage (sequestration) in the subsurface is to verify that the surrounding fractures and faults are not activated, acting as leakage pathways. This is achievable through effective and efficient Measurement, Monitoring and Verification (MMV) plans. In this work, two surrogate models are trained to captures dilation (opening) and shear deformation of fractures, and the associated surface deformation. The trained surrogate model, based on conditional Generative-Adversarial Networks (cGAN) receives fracture apertures from dilational fractures together with fracture slips from shear fractures and predicts the combined surface deformation. An inversion algorithm based on Bayesian framework is proposed to identify the geometry of both types of fractures, as well as volume of dilational fractures and deformation moment induced by shear fractures, all from the measured surface deformation data. The inversion algorithm utilises the Differential Evolution (DE) optimisation technique that has the superior performance in finding the global minimum of cost function. The proposed surrogate-assisted inversion successfully inferred the unknown dip, dip direction and the volume of the dilational fractures as well as the induced deformation moment in shear fractures. The model was further tested for the inversion of a field hydraulic fracturing tilt dataset applying different scenarios with varying unknowns to show the model's performance, as well as incorporating shear deformation for better match with the observed data.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
CSIRO Energy Business Unit; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003525
OSTI ID:
2527369
Journal Information:
International Journal of Rock Mechanics and Mining Sciences, Journal Name: International Journal of Rock Mechanics and Mining Sciences Vol. 188; ISSN 1365-1609
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (37)

An enhanced J‐integral for hydraulic fracture mechanics
  • Pezzulli, Edoardo; Nejati, Morteza; Salimzadeh, Saeed
  • International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 46, Issue 11 https://doi.org/10.1002/nag.3383
journal May 2022
Mechanical model for geomechanical pumped storage in horizontal fluid‐filled lenses
  • Bunger, Andrew P.; Lau, Henry; Wright, Scott
  • International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 47, Issue 8 https://doi.org/10.1002/nag.3517
journal March 2023
The CMA Evolution Strategy: A Comparing Review book January 2007
Resolving the Geometry of Hydraulic Fractures from Tilt Measurements journal October 2005
Verification of Coupled Hydraulic Fracturing Simulators Using Laboratory-Scale Experiments journal March 2021
Deep convolutional Ritz method: parametric PDE surrogates without labeled data journal July 2023
A simplified three-dimensional displacement discontinuity method for multiple fracture simulations journal June 2015
Injection and Storage of CO2 in Deep Saline Aquifers: Analytical Solution for CO2 Plume Evolution During Injection journal March 2005
Analytical investigation of hydraulic fracture-induced seismicity and fault activation journal July 2018
On the calculation of crack opening displacement from the stress intensity factor journal January 1987
Propagation of a penny-shaped fluid-driven fracture in an impermeable rock: asymptotic solutions journal December 2002
Effect of spatial variability of downhole geophysical logs on machine learning exercises journal September 2023
Laboratory experiments on fault behavior towards better understanding of injection-induced seismicity in geoenergy systems journal March 2022
A coupled model for reactive flow through deformable fractures in Enhanced Geothermal Systems journal September 2019
Modeling of deep fracture zone opening and transient ground surface uplift at KB-502 CO2 injection well, In Salah, Algeria journal January 2013
Can we use surface uplift data for reservoir performance monitoring? A case study from In Salah, Algeria journal September 2018
Field-data analysis and hydromechanical modeling of CO2 storage at In Salah, Algeria journal December 2018
Deep learning-accelerated 3D carbon storage reservoir pressure forecasting based on data assimilation using surface displacement from InSAR journal October 2022
An investigation of stimulation mechanisms in Enhanced Geothermal Systems journal December 2014
Numerical analysis of fracture propagation during hydraulic fracturing operations in shale gas systems journal June 2015
Model selection in fracture mapping from elastostatic data journal March 2007
Physics-informed neural networks: A deep learning framework for solving forward and inverse problems involving nonlinear partial differential equations journal February 2019
Approximate Bayesian computation with differential evolution journal October 2012
A novel workflow based on physics-informed machine learning to determine the permeability profile of fractured coal seams using downhole geophysical logs journal September 2021
Machine learning assisted Kriging to capture spatial variability in petrophysical property modelling journal September 2024
Modeling of fault activation and seismicity by injection directly into a fault zone associated with hydraulic fracturing of shale-gas reservoirs journal March 2015
Enhanced Geothermal Systems (EGS): Hydraulic fracturing in a thermo-poroelastic framework journal October 2016
(μ+λ) Evolution strategy algorithm in well placement, trajectory, control and joint optimisation journal June 2019
Differential Evolution – A Simple and Efficient Heuristic for global Optimization over Continuous Spaces journal January 1997
Changes of Slip Rate and Slip‐Plane Orientation by Fault Geometrical Complexities During Fluid Injection journal August 2019
Fracture Permeability Enhancement During Fluid Injection Modulated by Pressurization Rate and Surface Asperities journal September 2023
Physics‐Informed Neural Networks for Fault Slip Monitoring: Simulation, Frictional Parameter Estimation, and Prediction on Slow Slip Events in a Spring‐Slider System journal December 2023
Bayesian Inversion, Uncertainty Analysis and Interrogation Using Boosting Variational Inference journal January 2024
Learning nonlinear operators via DeepONet based on the universal approximation theorem of operators journal March 2021
Ground surface monitoring for CO journal May 2022
Earthquake triggering and large-scale geologic storage of carbon dioxide journal June 2012
An Analytical Solution for Pressure-Induced Deformation of Anisotropic Multilayered Subsurface journal April 2021