skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Accurate imaging of hydraulic fractures using templated electrical resistivity tomography

Abstract

Hydraulic fracturing has proven to be an essential technique for enhancing oil, gas and heat recovery from subsurface reservoirs. Accurate characterization of stimulated hydraulic fractures has significant scientific and practical value but remains practically challenging. We introduce a novel templated electrical resistivity tomography (TERT) method to estimate both the extents and aperture of a hydraulic fracture through two key innovations. First, unlike the traditional ERT methods which image the perturbed electrical resistivity field, TERT images the perturbation to the smooth background field, where the perturbation is a planar feature caused by the hydraulic fracture in a 3D space. Moreover, we maximize the use of a priori information of the fracture and minimize the parameter space by using geometric templates to characterize the fracture. A hypothetical elliptical fracture in a 3D model as well as a field-scale hydraulic fracture corresponding to a typical reservoir stimulation scenario are successfully imaged with TERT.

Authors:
 [1];  [1];  [1];  [1];  [2];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Office (EE-4G)
OSTI Identifier:
1548315
Report Number(s):
LLNL-JRNL-760470
Journal ID: ISSN 0375-6505; 949215
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Geothermics
Additional Journal Information:
Journal Volume: 81; Journal Issue: C; Journal ID: ISSN 0375-6505
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; Hydraulic fracture; Reservoir stimulation; Geophysics; Templated electrical resistivity tomography; Fracture growth

Citation Formats

Wu, Hui, Fu, Pengcheng, Yang, Xianjin, Morris, Joseph P., Johnson, Timothy C., Settgast, Randolph R., and Ryerson, Frederick J. Accurate imaging of hydraulic fractures using templated electrical resistivity tomography. United States: N. p., 2019. Web. doi:10.1016/j.geothermics.2019.04.004.
Wu, Hui, Fu, Pengcheng, Yang, Xianjin, Morris, Joseph P., Johnson, Timothy C., Settgast, Randolph R., & Ryerson, Frederick J. Accurate imaging of hydraulic fractures using templated electrical resistivity tomography. United States. doi:10.1016/j.geothermics.2019.04.004.
Wu, Hui, Fu, Pengcheng, Yang, Xianjin, Morris, Joseph P., Johnson, Timothy C., Settgast, Randolph R., and Ryerson, Frederick J. Mon . "Accurate imaging of hydraulic fractures using templated electrical resistivity tomography". United States. doi:10.1016/j.geothermics.2019.04.004. https://www.osti.gov/servlets/purl/1548315.
@article{osti_1548315,
title = {Accurate imaging of hydraulic fractures using templated electrical resistivity tomography},
author = {Wu, Hui and Fu, Pengcheng and Yang, Xianjin and Morris, Joseph P. and Johnson, Timothy C. and Settgast, Randolph R. and Ryerson, Frederick J.},
abstractNote = {Hydraulic fracturing has proven to be an essential technique for enhancing oil, gas and heat recovery from subsurface reservoirs. Accurate characterization of stimulated hydraulic fractures has significant scientific and practical value but remains practically challenging. We introduce a novel templated electrical resistivity tomography (TERT) method to estimate both the extents and aperture of a hydraulic fracture through two key innovations. First, unlike the traditional ERT methods which image the perturbed electrical resistivity field, TERT images the perturbation to the smooth background field, where the perturbation is a planar feature caused by the hydraulic fracture in a 3D space. Moreover, we maximize the use of a priori information of the fracture and minimize the parameter space by using geometric templates to characterize the fracture. A hypothetical elliptical fracture in a 3D model as well as a field-scale hydraulic fracture corresponding to a typical reservoir stimulation scenario are successfully imaged with TERT.},
doi = {10.1016/j.geothermics.2019.04.004},
journal = {Geothermics},
number = C,
volume = 81,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share: