CO2-plume geothermal (CPG) heat extraction in multi-layered geologic reservoirs

Nagasree Garapati; Jimmy B. Randolph; José L. Valencia; Martin O. Saar

doi:10.1016/j.egypro.2014.11.797

CO₂-plume geothermal (CPG) heat extraction in multi-layered geologic reservoirs

Nagasree Garapati, Jimmy B. Randolph, José L. Valencia, Martin O. Saar

Earth and Environmental Sciences-Twin Cities

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

36 Scopus citations

Abstract

CO₂-Plume Geothermal (CPG) technology involves injecting CO2₂into natural, highly permeable geologic units to extract energy. The subsurface CO₂ absorbs heat from the reservoir, buoyantly rises to the surface, and drives a power generation system. The CO₂ is then cooled and reinjected underground. Here, we analyze the effects of multi-layered geologic reservoirs on CPG system performance by examining the CO₂ mass fraction in the produced fluid, pore-fluid pressure buildup during operation, and heat energy extraction rates. The produced CO₂ mass fraction depends on the stratigraphic positions of highly permeable layers which also affect the pore-fluid pressure drop across the reservoir.

Original language	English (US)
Title of host publication	Energy Procedia
Publisher	Elsevier Ltd
Pages	7631-7643
Number of pages	13
Volume	63
DOIs	https://doi.org/10.1016/j.egypro.2014.11.797
State	Published - 2014
Event	12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014 - Austin, United States Duration: Oct 5 2014 → Oct 9 2014

Other

Other	12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014
Country/Territory	United States
City	Austin
Period	10/5/14 → 10/9/14

Keywords

Brine displacement
Carbon capture and sequestration (CCS)
Carbon capture utilization and sequestration (CCUS)
Carbon dioxide
Geothermal system
Heterogeneity
Reservoir simulations

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Publisher link

10.1016/j.egypro.2014.11.797

Find It

Find It at U of M Libraries

Cite this

@inproceedings{269b733351ba4174a84c73e2a44cfcb8,

title = "CO2-plume geothermal (CPG) heat extraction in multi-layered geologic reservoirs",

abstract = "CO2-Plume Geothermal (CPG) technology involves injecting CO22into natural, highly permeable geologic units to extract energy. The subsurface CO2 absorbs heat from the reservoir, buoyantly rises to the surface, and drives a power generation system. The CO2 is then cooled and reinjected underground. Here, we analyze the effects of multi-layered geologic reservoirs on CPG system performance by examining the CO2 mass fraction in the produced fluid, pore-fluid pressure buildup during operation, and heat energy extraction rates. The produced CO2 mass fraction depends on the stratigraphic positions of highly permeable layers which also affect the pore-fluid pressure drop across the reservoir.",

keywords = "Brine displacement, Carbon capture and sequestration (CCS), Carbon capture utilization and sequestration (CCUS), Carbon dioxide, Geothermal system, Heterogeneity, Reservoir simulations",

author = "Nagasree Garapati and Randolph, {Jimmy B.} and Valencia, {Jos{\'e} L.} and Saar, {Martin O.}",

year = "2014",

doi = "10.1016/j.egypro.2014.11.797",

language = "English (US)",

volume = "63",

pages = "7631--7643",

booktitle = "Energy Procedia",

publisher = "Elsevier Ltd",

note = "12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014 ; Conference date: 05-10-2014 Through 09-10-2014",

}

TY - GEN

T1 - CO2-plume geothermal (CPG) heat extraction in multi-layered geologic reservoirs

AU - Garapati, Nagasree

AU - Randolph, Jimmy B.

AU - Valencia, José L.

AU - Saar, Martin O.

PY - 2014

Y1 - 2014

N2 - CO2-Plume Geothermal (CPG) technology involves injecting CO22into natural, highly permeable geologic units to extract energy. The subsurface CO2 absorbs heat from the reservoir, buoyantly rises to the surface, and drives a power generation system. The CO2 is then cooled and reinjected underground. Here, we analyze the effects of multi-layered geologic reservoirs on CPG system performance by examining the CO2 mass fraction in the produced fluid, pore-fluid pressure buildup during operation, and heat energy extraction rates. The produced CO2 mass fraction depends on the stratigraphic positions of highly permeable layers which also affect the pore-fluid pressure drop across the reservoir.

AB - CO2-Plume Geothermal (CPG) technology involves injecting CO22into natural, highly permeable geologic units to extract energy. The subsurface CO2 absorbs heat from the reservoir, buoyantly rises to the surface, and drives a power generation system. The CO2 is then cooled and reinjected underground. Here, we analyze the effects of multi-layered geologic reservoirs on CPG system performance by examining the CO2 mass fraction in the produced fluid, pore-fluid pressure buildup during operation, and heat energy extraction rates. The produced CO2 mass fraction depends on the stratigraphic positions of highly permeable layers which also affect the pore-fluid pressure drop across the reservoir.

KW - Brine displacement

KW - Carbon capture and sequestration (CCS)

KW - Carbon capture utilization and sequestration (CCUS)

KW - Carbon dioxide

KW - Geothermal system

KW - Heterogeneity

KW - Reservoir simulations

UR - http://www.scopus.com/inward/record.url?scp=84922901989&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84922901989&partnerID=8YFLogxK

U2 - 10.1016/j.egypro.2014.11.797

DO - 10.1016/j.egypro.2014.11.797

M3 - Conference contribution

AN - SCOPUS:84922901989

VL - 63

SP - 7631

EP - 7643

BT - Energy Procedia

PB - Elsevier Ltd

T2 - 12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014

Y2 - 5 October 2014 through 9 October 2014

ER -