Numerical investigations of the PUGA geothermal reservoir with multistage hydraulic fractures and well patterns using fully coupled thermo-hydro-geomechanical modeling

Manojkumar Gudala; Suresh Kumar Govindarajan; Bicheng Yan; Shuyu Sun

doi:10.1016/j.energy.2022.124173

Numerical investigations of the PUGA geothermal reservoir with multistage hydraulic fractures and well patterns using fully coupled thermo-hydro-geomechanical modeling

Manojkumar Gudala, Suresh Kumar Govindarajan, Bicheng Yan, Shuyu Sun

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

The Puga geothermal reservoir is located in the south-eastern part of Ladakh (Himalayan region, India), and it is providing encouraging results towards heat production. We proposed an improved mathematical model for the fully coupled thermo-hydro-geomechanical model to examine the variations in the Puga geothermal reservoir at between 4500 m from the surface with three, four, and seven hydraulic fractures in the reservoir along with four-spot, five-spot, seven-spot, and nine-spot well patterns. The distribution of low-temperature region is found in each fracture, and it is low in the reservoir with seven hydraulic fractures. The changes in the rock and fluid properties are examined effectively. Thermal strain is dominated in the fractures, and mechanical strain is impressive in the rock matrix; it is dependent on the number of hydraulic fractures and well patterns. The thermal performance of the Puga reservoir is examined with the geothermal life, reservoir impedance, and heat power and found that the number of hydraulic fractures and well patterns are influenced significantly in the multistage modeling of the Puga geothermal reservoir. Thus, the proposed mathematical model can effectively evaluate and predict the variations that occur in the Puga geothermal reservoir with dynamic rock, fracture, and fluid properties.

Original language	English (US)
Pages (from-to)	124173
Journal	Energy
DOIs	https://doi.org/10.1016/j.energy.2022.124173
State	Published - May 6 2022

Bibliographical note

KAUST Repository Item: Exported on 2022-05-09
Acknowledged KAUST grant number(s): BAS/1/1351-01-01, URF/1/4074-01-01, BAS/1/1423-01-01
Acknowledgements: Manojkumar Gudala and Suresh Kumar Govindarajan gratefully acknowledge financial support from the Indian Institute of Technology–Madras; Manojkumar Gudala and Bicheng Yan thanks for the Research Funding from King Abdullah University of Science and Technology (KAUST), Saudi Arabia through the grants BAS/1/1423-01-01; Manojkumar Gudala and Shuyu Sun thanks for the Research Funding from King Abdullah University of Science and Technology (KAUST), Saudi Arabia through the grants BAS/1/1351-01-01 and URF/1/4074-01-01.

ASJC Scopus subject areas

General Energy
Pollution

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10.1016/j.energy.2022.124173

https://repository.kaust.edu.sa/bitstream/10754/676662/1/1-s2.0-S0360544222010763-main.pdf

Cite this

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title = "Numerical investigations of the PUGA geothermal reservoir with multistage hydraulic fractures and well patterns using fully coupled thermo-hydro-geomechanical modeling",

abstract = "The Puga geothermal reservoir is located in the south-eastern part of Ladakh (Himalayan region, India), and it is providing encouraging results towards heat production. We proposed an improved mathematical model for the fully coupled thermo-hydro-geomechanical model to examine the variations in the Puga geothermal reservoir at between 4500 m from the surface with three, four, and seven hydraulic fractures in the reservoir along with four-spot, five-spot, seven-spot, and nine-spot well patterns. The distribution of low-temperature region is found in each fracture, and it is low in the reservoir with seven hydraulic fractures. The changes in the rock and fluid properties are examined effectively. Thermal strain is dominated in the fractures, and mechanical strain is impressive in the rock matrix; it is dependent on the number of hydraulic fractures and well patterns. The thermal performance of the Puga reservoir is examined with the geothermal life, reservoir impedance, and heat power and found that the number of hydraulic fractures and well patterns are influenced significantly in the multistage modeling of the Puga geothermal reservoir. Thus, the proposed mathematical model can effectively evaluate and predict the variations that occur in the Puga geothermal reservoir with dynamic rock, fracture, and fluid properties.",

author = "Manojkumar Gudala and Govindarajan, {Suresh Kumar} and Bicheng Yan and Shuyu Sun",

note = "KAUST Repository Item: Exported on 2022-05-09 Acknowledged KAUST grant number(s): BAS/1/1351-01-01, URF/1/4074-01-01, BAS/1/1423-01-01 Acknowledgements: Manojkumar Gudala and Suresh Kumar Govindarajan gratefully acknowledge financial support from the Indian Institute of Technology–Madras; Manojkumar Gudala and Bicheng Yan thanks for the Research Funding from King Abdullah University of Science and Technology (KAUST), Saudi Arabia through the grants BAS/1/1423-01-01; Manojkumar Gudala and Shuyu Sun thanks for the Research Funding from King Abdullah University of Science and Technology (KAUST), Saudi Arabia through the grants BAS/1/1351-01-01 and URF/1/4074-01-01.",

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doi = "10.1016/j.energy.2022.124173",

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AU - Gudala, Manojkumar

AU - Govindarajan, Suresh Kumar

AU - Yan, Bicheng

AU - Sun, Shuyu

N1 - KAUST Repository Item: Exported on 2022-05-09 Acknowledged KAUST grant number(s): BAS/1/1351-01-01, URF/1/4074-01-01, BAS/1/1423-01-01 Acknowledgements: Manojkumar Gudala and Suresh Kumar Govindarajan gratefully acknowledge financial support from the Indian Institute of Technology–Madras; Manojkumar Gudala and Bicheng Yan thanks for the Research Funding from King Abdullah University of Science and Technology (KAUST), Saudi Arabia through the grants BAS/1/1423-01-01; Manojkumar Gudala and Shuyu Sun thanks for the Research Funding from King Abdullah University of Science and Technology (KAUST), Saudi Arabia through the grants BAS/1/1351-01-01 and URF/1/4074-01-01.

PY - 2022/5/6

Y1 - 2022/5/6

N2 - The Puga geothermal reservoir is located in the south-eastern part of Ladakh (Himalayan region, India), and it is providing encouraging results towards heat production. We proposed an improved mathematical model for the fully coupled thermo-hydro-geomechanical model to examine the variations in the Puga geothermal reservoir at between 4500 m from the surface with three, four, and seven hydraulic fractures in the reservoir along with four-spot, five-spot, seven-spot, and nine-spot well patterns. The distribution of low-temperature region is found in each fracture, and it is low in the reservoir with seven hydraulic fractures. The changes in the rock and fluid properties are examined effectively. Thermal strain is dominated in the fractures, and mechanical strain is impressive in the rock matrix; it is dependent on the number of hydraulic fractures and well patterns. The thermal performance of the Puga reservoir is examined with the geothermal life, reservoir impedance, and heat power and found that the number of hydraulic fractures and well patterns are influenced significantly in the multistage modeling of the Puga geothermal reservoir. Thus, the proposed mathematical model can effectively evaluate and predict the variations that occur in the Puga geothermal reservoir with dynamic rock, fracture, and fluid properties.

AB - The Puga geothermal reservoir is located in the south-eastern part of Ladakh (Himalayan region, India), and it is providing encouraging results towards heat production. We proposed an improved mathematical model for the fully coupled thermo-hydro-geomechanical model to examine the variations in the Puga geothermal reservoir at between 4500 m from the surface with three, four, and seven hydraulic fractures in the reservoir along with four-spot, five-spot, seven-spot, and nine-spot well patterns. The distribution of low-temperature region is found in each fracture, and it is low in the reservoir with seven hydraulic fractures. The changes in the rock and fluid properties are examined effectively. Thermal strain is dominated in the fractures, and mechanical strain is impressive in the rock matrix; it is dependent on the number of hydraulic fractures and well patterns. The thermal performance of the Puga reservoir is examined with the geothermal life, reservoir impedance, and heat power and found that the number of hydraulic fractures and well patterns are influenced significantly in the multistage modeling of the Puga geothermal reservoir. Thus, the proposed mathematical model can effectively evaluate and predict the variations that occur in the Puga geothermal reservoir with dynamic rock, fracture, and fluid properties.

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U2 - 10.1016/j.energy.2022.124173

DO - 10.1016/j.energy.2022.124173

M3 - Article

SN - 0360-5442

SP - 124173

JO - Energy

JF - Energy

ER -

Numerical investigations of the PUGA geothermal reservoir with multistage hydraulic fractures and well patterns using fully coupled thermo-hydro-geomechanical modeling

Abstract

Bibliographical note

ASJC Scopus subject areas

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