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Title: Fully coupled wellbore-reservoir simulation of supercritical CO 2 injection from fossil fuel power plant for heat mining from geothermal reservoirs

Abstract

The concept of injecting supercritical CO 2 (sCO 2) into a geothermal reservoir was computationally investigated to assess its performance in terms of the benefit of using CO 2 captured from fossil power plants for geothermal heat mining. A coupled wellbore-reservoir system was simulated considering the flow of pure sCO 2 in an injection well, the interaction of sCO 2 and water in a permeable reservoir, and the flow of the two-phase mixture of sCO 2 and water in a production well. Results of simulations indicate that this CO 2 application is capable of providing a good source of renewable energy. It was found that for a reservoir with a 0.08 km 3 volume, about 8-9 MW th could be extracted in a steady state fashion for a 30-year lifetime operation. This is approximately equivalent to 100 MW th/km 3. A sensitivity analysis provided information on the impact of certain parameters on the performance of the integrated system. The injection flowrate, the distance between the production and injection wellbores and the penetrating depth of the production wellbore into the reservoir have a first order impact on the pressure management of the reservoir. Additionally, CO 2 injection temperature has a largemore » effect on the thermosiphon characteristics of the system.« less

Authors:
 [1];  [1];  [1]; ORCiD logo [1];  [2];  [3]
  1. Lehigh Univ., Bethlehem, PA (United States). Energy Research Center
  2. Univ. Michoacana de San Nicolas de Hidalgo, Morelia (Mexico). Faculty of Mechanical Engineering
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Earth Sciences Div.
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); Mexican National Council of Science and Technology
OSTI Identifier:
1559155
Grant/Contract Number:  
AC02-05CH11231; S0019-2012-04
Resource Type:
Accepted Manuscript
Journal Name:
Journal of CO2 Utilization
Additional Journal Information:
Journal Volume: 27; Journal Issue: C; Journal ID: ISSN 2212-9820
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 20 FOSSIL-FUELED POWER PLANTS; 54 ENVIRONMENTAL SCIENCES

Citation Formats

Pan, Chunjian, Romero, Carlos E., Levy, Edward K., Wang, Xingchao, Rubio-Maya, Carlos, and Pan, Lehua. Fully coupled wellbore-reservoir simulation of supercritical CO2 injection from fossil fuel power plant for heat mining from geothermal reservoirs. United States: N. p., 2018. Web. doi:10.1016/j.jcou.2018.09.003.
Pan, Chunjian, Romero, Carlos E., Levy, Edward K., Wang, Xingchao, Rubio-Maya, Carlos, & Pan, Lehua. Fully coupled wellbore-reservoir simulation of supercritical CO2 injection from fossil fuel power plant for heat mining from geothermal reservoirs. United States. doi:10.1016/j.jcou.2018.09.003.
Pan, Chunjian, Romero, Carlos E., Levy, Edward K., Wang, Xingchao, Rubio-Maya, Carlos, and Pan, Lehua. Sat . "Fully coupled wellbore-reservoir simulation of supercritical CO2 injection from fossil fuel power plant for heat mining from geothermal reservoirs". United States. doi:10.1016/j.jcou.2018.09.003. https://www.osti.gov/servlets/purl/1559155.
@article{osti_1559155,
title = {Fully coupled wellbore-reservoir simulation of supercritical CO2 injection from fossil fuel power plant for heat mining from geothermal reservoirs},
author = {Pan, Chunjian and Romero, Carlos E. and Levy, Edward K. and Wang, Xingchao and Rubio-Maya, Carlos and Pan, Lehua},
abstractNote = {The concept of injecting supercritical CO2 (sCO2) into a geothermal reservoir was computationally investigated to assess its performance in terms of the benefit of using CO2 captured from fossil power plants for geothermal heat mining. A coupled wellbore-reservoir system was simulated considering the flow of pure sCO2 in an injection well, the interaction of sCO2 and water in a permeable reservoir, and the flow of the two-phase mixture of sCO2 and water in a production well. Results of simulations indicate that this CO2 application is capable of providing a good source of renewable energy. It was found that for a reservoir with a 0.08 km3 volume, about 8-9 MWth could be extracted in a steady state fashion for a 30-year lifetime operation. This is approximately equivalent to 100 MWth/km3. A sensitivity analysis provided information on the impact of certain parameters on the performance of the integrated system. The injection flowrate, the distance between the production and injection wellbores and the penetrating depth of the production wellbore into the reservoir have a first order impact on the pressure management of the reservoir. Additionally, CO2 injection temperature has a large effect on the thermosiphon characteristics of the system.},
doi = {10.1016/j.jcou.2018.09.003},
journal = {Journal of CO2 Utilization},
number = C,
volume = 27,
place = {United States},
year = {2018},
month = {9}
}

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Figures / Tables:

Figure 1 Figure 1: Illustration of sCO2 Injection into a Geothermal Reservoir for Heat Miningand Above-the-Ground Geothermal Energy Utilization

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