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Title: Modelling DC responses of 3D complex fracture networks

Here, the determination of the geometrical properties of fractures plays a critical role in many engineering problems to assess the current hydrological and mechanical states of geological media and to predict their future states. However, numerical modeling of geoelectrical responses in realistic fractured media has been challenging due to the explosive computational cost imposed by the explicit discretizations of fractures at multiple length scales, which often brings about a tradeoff between computational efficiency and geologic realism. Here, we use the hierarchical finite element method to model electrostatic response of realistically complex 3D conductive fracture networks with minimal computational cost.
Authors:
 [1] ;  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Univ. of New Mexico, Albuquerque, NM (United States)
Publication Date:
Report Number(s):
SAND-2018-2316J; SAND-2018-6063J
Journal ID: ISSN 0956-540X; 661130
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Geophysical Journal International
Additional Journal Information:
Journal Volume: 214; Journal Issue: 3; Journal ID: ISSN 0956-540X
Publisher:
Oxford University Press
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; Numerical approximations and analysis; Electrical properties; DC resistivity modeling; Fracture networks; Azimuthal resistivity surveys; electrical properties; fracture and flow; numerical approximations and analysis
OSTI Identifier:
1452664
Alternate Identifier(s):
OSTI ID: 1465193

Beskardes, Gungor Didem, and Weiss, Chester Joseph. Modelling DC responses of 3D complex fracture networks. United States: N. p., Web. doi:10.1093/gji/ggy234.
Beskardes, Gungor Didem, & Weiss, Chester Joseph. Modelling DC responses of 3D complex fracture networks. United States. doi:10.1093/gji/ggy234.
Beskardes, Gungor Didem, and Weiss, Chester Joseph. 2018. "Modelling DC responses of 3D complex fracture networks". United States. doi:10.1093/gji/ggy234.
@article{osti_1452664,
title = {Modelling DC responses of 3D complex fracture networks},
author = {Beskardes, Gungor Didem and Weiss, Chester Joseph},
abstractNote = {Here, the determination of the geometrical properties of fractures plays a critical role in many engineering problems to assess the current hydrological and mechanical states of geological media and to predict their future states. However, numerical modeling of geoelectrical responses in realistic fractured media has been challenging due to the explosive computational cost imposed by the explicit discretizations of fractures at multiple length scales, which often brings about a tradeoff between computational efficiency and geologic realism. Here, we use the hierarchical finite element method to model electrostatic response of realistically complex 3D conductive fracture networks with minimal computational cost.},
doi = {10.1093/gji/ggy234},
journal = {Geophysical Journal International},
number = 3,
volume = 214,
place = {United States},
year = {2018},
month = {6}
}