Scale‐bridging in three‐dimensional fracture networks: Characterizing the effects of variable fracture apertures on network‐scale flow channelization

JD Hyman, MR Sweeney, LP Frash… - Geophysical …, 2021 - Wiley Online Library
We incorporate observations of real fracture aperture variability observed in laboratory
experiments into an ensemble of three‐dimensional discrete fracture network (DFN) …

Machine-learning predictions of the shale wells' performance

M Mehana, E Guiltinan, V Vesselinov… - Journal of Natural Gas …, 2021 - Elsevier
The ultra-low permeability nature of shale reservoirs leads to an extended linear flow and
necessitates horizontal wells with multi-stage engineered fractures to efficiently extract …

Anomalous transport in three‐dimensional discrete fracture networks: Interplay between aperture heterogeneity and injection modes

PK Kang, JD Hyman, WS Han… - Water Resources …, 2020 - Wiley Online Library
We study how the interplay between fracture aperture heterogeneity and tracer injection
mode controls fluid flow and tracer transport in three‐dimensional (3D) discrete fracture …

Flow and transport in three-dimensional discrete fracture matrix models using mimetic finite difference on a conforming multi-dimensional mesh

JD Hyman, MR Sweeney, CW Gable, D Svyatsky… - Journal of …, 2022 - Elsevier
We present a comprehensive workflow to simulate single-phase flow and transport in
fractured porous media using the discrete fracture matrix approach. The workflow has three …

Upscaled discrete fracture matrix model (UDFM): an octree-refined continuum representation of fractured porous media

MR Sweeney, CW Gable, S Karra, PH Stauffer… - Computational …, 2020 - Springer
We develop a computational geometry-based upscaling approach to accurately capture the
dynamic processes occurring within and between subsurface fracture networks and the …

Machine learning for graph-based representations of three-dimensional discrete fracture networks

M Valera, Z Guo, P Kelly, S Matz, VA Cantu… - Computational …, 2018 - Springer
Structural and topological information play a key role in modeling flow and transport through
fractured rock in the subsurface. Discrete fracture network (DFN) computational suites such …

Toward better hydraulic fracturing fluids and their application in energy production: A review of sustainable technologies and reduction of potential environmental …

L Thomas, H Tang, DM Kalyon, S Aktas… - Journal of Petroleum …, 2019 - Elsevier
Recent advances in hydraulic fracturing, in conjunction with horizontal drilling, have enabled
large-scale extraction of natural gas and oil from shale formations. Despite its advances and …

Predictions of first passage times in sparse discrete fracture networks using graph-based reductions

JD Hyman, A Hagberg, G Srinivasan, J Mohd-Yusof… - Physical Review E, 2017 - APS
We present a graph-based methodology to reduce the computational cost of obtaining first
passage times through sparse fracture networks. We derive graph representations of …

[HTML][HTML] Modeling and scale-bridging using machine learning: Nanoconfinement effects in porous media

N Lubbers, A Agarwal, Y Chen, S Son, M Mehana… - Scientific reports, 2020 - nature.com
Fine-scale models that represent first-principles physics are challenging to represent at
larger scales of interest in many application areas. In nanoporous media such as tight-shale …

Matrix diffusion in fractured media: New insights into power law scaling of breakthrough curves

JD Hyman, H Rajaram, S Srinivasan… - Geophysical …, 2019 - Wiley Online Library
We develop a theoretical model for power law tailing behavior of transport in fractured rock
based on the relative dominance of the decay rate of the advective travel time distribution …