Preliminary Study of Influence Factors and Estimation Model of the Enhanced Gas Recovery Stimulated by Carbon Dioxide Utilization in Shale

Jun Liu; Lingzhi Xie; Yanbin Yao; Quan Gan; Peng Zhao; Longhuan Du

doi:10.1021/acssuschemeng.9b06005

Preliminary Study of Influence Factors and Estimation Model of the Enhanced Gas Recovery Stimulated by Carbon Dioxide Utilization in Shale

Jun Liu, Lingzhi Xie, Yanbin Yao, Quan Gan, Peng Zhao^*, Longhuan Du

^*Corresponding author for this work

Geology and Geophysics

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

52 Citations (Scopus)

Abstract

Carbon dioxide (CO₂) injection into shale enables enhanced gas recovery (EGR) associated with geological CO₂ sequestration. Although primary research has been conducted on the CO₂-based EGR technique in shale, the factors that influence the EGR efficiency remain unclear and need to be examined. This study presents a novel nuclear magnetic resonance (NMR)-based methodology to measure the EGR efficiency caused by CO₂ injection into shale samples with various properties. Accordingly, the effects of shale properties on the CO₂-based EGR efficiency were revealed, and a calculation model for estimating the EGR efficiency was established. The results indicated that CO₂ injection enables significant production enhancement of shale gas, with the EGR efficiency averaging 23.54% and ranging from 16.22 to 34.34%, thus indicating that the EGR efficiency varies with the shale properties. The results also indicated that a higher CO₂-based EGR efficiency, while adhering to a higher CO₂-sequestration capacity, usually occurs in shales with a higher content of total organic carbon, higher methane-adsorption capacity, lower permeability, and lower clay mineral content. Moreover, an estimation model is developed to forecast the CO₂-based EGR efficiency according to the shale properties. In general, these far-reaching results are of significance for predicting the benefit of CO₂ utilization in different shale reservoirs.

Original language	English
Pages (from-to)	20114-20125
Number of pages	12
Journal	ACS Sustainable Chemistry and Engineering
Volume	7
Issue number	24
Early online date	21 Nov 2019
DOIs	https://doi.org/10.1021/acssuschemeng.9b06005
Publication status	Published - 16 Dec 2019

Bibliographical note

We acknowledge the financial support from the Beijing key laboratory of unconventional natural gas geological evaluation and development engineering (grant number 2019BJ02002), the National Natural Science Foundation of China (grant numbers 41872123, 11872258, and 51704197), and the Science and Technology Department of Sichuan Province (grant number 2019YFH0121). The authors would like to thank Bo He from the Institute of New Energy and Low-Carbon Technology of Sichuan University for his help with experiments on shale property characterization.

Keywords

carbon capture and utilization (CCU)
CO geological sequestration
enhanced gas recovery (EGR)
gas shale
reservoir characteristics

UN SDGs

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

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title = "Preliminary Study of Influence Factors and Estimation Model of the Enhanced Gas Recovery Stimulated by Carbon Dioxide Utilization in Shale",

abstract = "Carbon dioxide (CO2) injection into shale enables enhanced gas recovery (EGR) associated with geological CO2 sequestration. Although primary research has been conducted on the CO2-based EGR technique in shale, the factors that influence the EGR efficiency remain unclear and need to be examined. This study presents a novel nuclear magnetic resonance (NMR)-based methodology to measure the EGR efficiency caused by CO2 injection into shale samples with various properties. Accordingly, the effects of shale properties on the CO2-based EGR efficiency were revealed, and a calculation model for estimating the EGR efficiency was established. The results indicated that CO2 injection enables significant production enhancement of shale gas, with the EGR efficiency averaging 23.54% and ranging from 16.22 to 34.34%, thus indicating that the EGR efficiency varies with the shale properties. The results also indicated that a higher CO2-based EGR efficiency, while adhering to a higher CO2-sequestration capacity, usually occurs in shales with a higher content of total organic carbon, higher methane-adsorption capacity, lower permeability, and lower clay mineral content. Moreover, an estimation model is developed to forecast the CO2-based EGR efficiency according to the shale properties. In general, these far-reaching results are of significance for predicting the benefit of CO2 utilization in different shale reservoirs.",

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author = "Jun Liu and Lingzhi Xie and Yanbin Yao and Quan Gan and Peng Zhao and Longhuan Du",

note = "We acknowledge the financial support from the Beijing key laboratory of unconventional natural gas geological evaluation and development engineering (grant number 2019BJ02002), the National Natural Science Foundation of China (grant numbers 41872123, 11872258, and 51704197), and the Science and Technology Department of Sichuan Province (grant number 2019YFH0121). The authors would like to thank Bo He from the Institute of New Energy and Low-Carbon Technology of Sichuan University for his help with experiments on shale property characterization. ",

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doi = "10.1021/acssuschemeng.9b06005",

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T1 - Preliminary Study of Influence Factors and Estimation Model of the Enhanced Gas Recovery Stimulated by Carbon Dioxide Utilization in Shale

AU - Liu, Jun

AU - Xie, Lingzhi

AU - Yao, Yanbin

AU - Gan, Quan

AU - Zhao, Peng

AU - Du, Longhuan

N1 - We acknowledge the financial support from the Beijing key laboratory of unconventional natural gas geological evaluation and development engineering (grant number 2019BJ02002), the National Natural Science Foundation of China (grant numbers 41872123, 11872258, and 51704197), and the Science and Technology Department of Sichuan Province (grant number 2019YFH0121). The authors would like to thank Bo He from the Institute of New Energy and Low-Carbon Technology of Sichuan University for his help with experiments on shale property characterization.

PY - 2019/12/16

Y1 - 2019/12/16

N2 - Carbon dioxide (CO2) injection into shale enables enhanced gas recovery (EGR) associated with geological CO2 sequestration. Although primary research has been conducted on the CO2-based EGR technique in shale, the factors that influence the EGR efficiency remain unclear and need to be examined. This study presents a novel nuclear magnetic resonance (NMR)-based methodology to measure the EGR efficiency caused by CO2 injection into shale samples with various properties. Accordingly, the effects of shale properties on the CO2-based EGR efficiency were revealed, and a calculation model for estimating the EGR efficiency was established. The results indicated that CO2 injection enables significant production enhancement of shale gas, with the EGR efficiency averaging 23.54% and ranging from 16.22 to 34.34%, thus indicating that the EGR efficiency varies with the shale properties. The results also indicated that a higher CO2-based EGR efficiency, while adhering to a higher CO2-sequestration capacity, usually occurs in shales with a higher content of total organic carbon, higher methane-adsorption capacity, lower permeability, and lower clay mineral content. Moreover, an estimation model is developed to forecast the CO2-based EGR efficiency according to the shale properties. In general, these far-reaching results are of significance for predicting the benefit of CO2 utilization in different shale reservoirs.

AB - Carbon dioxide (CO2) injection into shale enables enhanced gas recovery (EGR) associated with geological CO2 sequestration. Although primary research has been conducted on the CO2-based EGR technique in shale, the factors that influence the EGR efficiency remain unclear and need to be examined. This study presents a novel nuclear magnetic resonance (NMR)-based methodology to measure the EGR efficiency caused by CO2 injection into shale samples with various properties. Accordingly, the effects of shale properties on the CO2-based EGR efficiency were revealed, and a calculation model for estimating the EGR efficiency was established. The results indicated that CO2 injection enables significant production enhancement of shale gas, with the EGR efficiency averaging 23.54% and ranging from 16.22 to 34.34%, thus indicating that the EGR efficiency varies with the shale properties. The results also indicated that a higher CO2-based EGR efficiency, while adhering to a higher CO2-sequestration capacity, usually occurs in shales with a higher content of total organic carbon, higher methane-adsorption capacity, lower permeability, and lower clay mineral content. Moreover, an estimation model is developed to forecast the CO2-based EGR efficiency according to the shale properties. In general, these far-reaching results are of significance for predicting the benefit of CO2 utilization in different shale reservoirs.

KW - carbon capture and utilization (CCU)

KW - CO geological sequestration

KW - enhanced gas recovery (EGR)

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KW - reservoir characteristics

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EP - 20125

JO - ACS Sustainable Chemistry and Engineering

JF - ACS Sustainable Chemistry and Engineering

IS - 24

ER -

Preliminary Study of Influence Factors and Estimation Model of the Enhanced Gas Recovery Stimulated by Carbon Dioxide Utilization in Shale

Abstract

Bibliographical note

Keywords

UN SDGs

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