Applications of Fractured Continuum Model to Enhanced Geothermal System Heat Extraction Problems
This paper describes the applications of the fractured continuum model to the different enhanced geothermal systems reservoir conditions. The capability of the fractured continuum model to generate fracture characteristics expected in enhanced geothermal systems reservoir environments are demonstrated for single and multiple sets of fractures. Fracture characteristics are defined by fracture strike, dip, spacing, and aperture. This paper demonstrates how the fractured continuum model can be extended to represent continuous fractured features, such as long fractures, and the conditions in which the fracture density varies within the different depth intervals. Simulations of heat transport using different fracture settings were compared with regard to their heat extraction effectiveness. The best heat extraction was obtained in the case when fractures were horizontal. A conventional heat extraction scheme with vertical wells was compared to an alternative scheme with horizontal wells. The heat extraction with the horizontal wells was significantly better than with the vertical wells when the injector was at the bottom.
Citation Formats
TY - DATA
AB - This paper describes the applications of the fractured continuum model to the different enhanced geothermal systems reservoir conditions. The capability of the fractured continuum model to generate fracture characteristics expected in enhanced geothermal systems reservoir environments are demonstrated for single and multiple sets of fractures. Fracture characteristics are defined by fracture strike, dip, spacing, and aperture. This paper demonstrates how the fractured continuum model can be extended to represent continuous fractured features, such as long fractures, and the conditions in which the fracture density varies within the different depth intervals. Simulations of heat transport using different fracture settings were compared with regard to their heat extraction effectiveness. The best heat extraction was obtained in the case when fractures were horizontal. A conventional heat extraction scheme with vertical wells was compared to an alternative scheme with horizontal wells. The heat extraction with the horizontal wells was significantly better than with the vertical wells when the injector was at the bottom.
AU - Kalinina, Elena A.
A2 - Klise, Katherine A.
A3 - McKenna, Sean A.
A4 - Hadgu, Teklu
A5 - Lowry, Thomas S.
DB - Open Energy Data Initiative (OEDI)
DP - Open EI | National Renewable Energy Laboratory
DO -
KW - geothermal
KW - simulation
KW - EGS
KW - heat extraction
KW - fracture
KW - fractured continuum model
KW - fracture continuum
KW - fracture characteristics
KW - reservoir environment
KW - horizontal wells
KW - vertical wells
LA - English
DA - 2014/05/06
PY - 2014
PB - Sandia National Laboratories
T1 - Applications of Fractured Continuum Model to Enhanced Geothermal System Heat Extraction Problems
UR - https://data.openei.org/submissions/6749
ER -
Kalinina, Elena A., et al. Applications of Fractured Continuum Model to Enhanced Geothermal System Heat Extraction Problems. Sandia National Laboratories, 6 May, 2014, GDR. https://gdr.openei.org/submissions/438.
Kalinina, E., Klise, K., McKenna, S., Hadgu, T., & Lowry, T. (2014). Applications of Fractured Continuum Model to Enhanced Geothermal System Heat Extraction Problems. [Data set]. GDR. Sandia National Laboratories. https://gdr.openei.org/submissions/438
Kalinina, Elena A., Katherine A. Klise, Sean A. McKenna, Teklu Hadgu, and Thomas S. Lowry. Applications of Fractured Continuum Model to Enhanced Geothermal System Heat Extraction Problems. Sandia National Laboratories, May, 6, 2014. Distributed by GDR. https://gdr.openei.org/submissions/438
@misc{OEDI_Dataset_6749,
title = {Applications of Fractured Continuum Model to Enhanced Geothermal System Heat Extraction Problems},
author = {Kalinina, Elena A. and Klise, Katherine A. and McKenna, Sean A. and Hadgu, Teklu and Lowry, Thomas S.},
abstractNote = {This paper describes the applications of the fractured continuum model to the different enhanced geothermal systems reservoir conditions. The capability of the fractured continuum model to generate fracture characteristics expected in enhanced geothermal systems reservoir environments are demonstrated for single and multiple sets of fractures. Fracture characteristics are defined by fracture strike, dip, spacing, and aperture. This paper demonstrates how the fractured continuum model can be extended to represent continuous fractured features, such as long fractures, and the conditions in which the fracture density varies within the different depth intervals. Simulations of heat transport using different fracture settings were compared with regard to their heat extraction effectiveness. The best heat extraction was obtained in the case when fractures were horizontal. A conventional heat extraction scheme with vertical wells was compared to an alternative scheme with horizontal wells. The heat extraction with the horizontal wells was significantly better than with the vertical wells when the injector was at the bottom.},
url = {https://gdr.openei.org/submissions/438},
year = {2014},
howpublished = {GDR, Sandia National Laboratories, https://gdr.openei.org/submissions/438},
note = {Accessed: 2025-05-10}
}
Details
Data from May 6, 2014
Last updated Jun 23, 2017
Submitted Aug 29, 2014
Organization
Sandia National Laboratories
Contact
Thomas Lowry
505.284.9735
Authors
Original Source
https://gdr.openei.org/submissions/438Research Areas
Keywords
geothermal, simulation, EGS, heat extraction, fracture, fractured continuum model, fracture continuum, fracture characteristics, reservoir environment, horizontal wells, vertical wellsDOE Project Details
Project Lead Eric Hass
Project Number FY14 AOP 1.1.5.5