Cargando…

Methane Seepage Characteristics in Coal Seams under Microwave Radiation

[Image: see text] Microwave radiation is an effective method for simulating the exploitation of coalbed methane (CBM). Herein, structural coal seepage is evaluated using a self-developed experiment system to explore the temperature and permeability response changes exhibited by coal samples under mi...

Descripción completa

Detalles Bibliográficos
Autores principales: Tu, Yuying, Zhang, Yongli, Dong, Yubin, Ma, Yulin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10399155/
https://www.ncbi.nlm.nih.gov/pubmed/37546679
http://dx.doi.org/10.1021/acsomega.3c02098
_version_ 1785084208499130368
author Tu, Yuying
Zhang, Yongli
Dong, Yubin
Ma, Yulin
author_facet Tu, Yuying
Zhang, Yongli
Dong, Yubin
Ma, Yulin
author_sort Tu, Yuying
collection PubMed
description [Image: see text] Microwave radiation is an effective method for simulating the exploitation of coalbed methane (CBM). Herein, structural coal seepage is evaluated using a self-developed experiment system to explore the temperature and permeability response changes exhibited by coal samples under microwave radiation and stress loading. Microwave radiation experiments are used to conduct the numerical simulation of the microwave radiation, and the temperatures and permeability values of the coal samples under simulated and experimental conditions are compared and analyzed. The results show that the higher the microwave radiation power, the higher the temperature of coal samples within the specified time. Under the same effective stress conditions, the higher the microwave radiation power and the longer the action time, the greater the coal sample permeability. Moreover, effective stress is shown to be important for permeability. The curve change trends and numerical values of the experiment and simulation are consistent, and the accuracy of the experiment and simulation is verified in both directions. Furthermore, a numerical model of coal seams under microwave radiation is established to simulate the change law of pressure, gas seepage velocity, and free methane content of actual coal seams under microwave radiation. It is concluded that the fast heating and stable temperature resulting from microwave radiation are beneficial for the crack propagation of coal near reservoirs. The results of this study provide a new technological method for actual CBM exploitation and a new research direction for unconventional natural gas energy output.
format Online
Article
Text
id pubmed-10399155
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher American Chemical Society
record_format MEDLINE/PubMed
spelling pubmed-103991552023-08-04 Methane Seepage Characteristics in Coal Seams under Microwave Radiation Tu, Yuying Zhang, Yongli Dong, Yubin Ma, Yulin ACS Omega [Image: see text] Microwave radiation is an effective method for simulating the exploitation of coalbed methane (CBM). Herein, structural coal seepage is evaluated using a self-developed experiment system to explore the temperature and permeability response changes exhibited by coal samples under microwave radiation and stress loading. Microwave radiation experiments are used to conduct the numerical simulation of the microwave radiation, and the temperatures and permeability values of the coal samples under simulated and experimental conditions are compared and analyzed. The results show that the higher the microwave radiation power, the higher the temperature of coal samples within the specified time. Under the same effective stress conditions, the higher the microwave radiation power and the longer the action time, the greater the coal sample permeability. Moreover, effective stress is shown to be important for permeability. The curve change trends and numerical values of the experiment and simulation are consistent, and the accuracy of the experiment and simulation is verified in both directions. Furthermore, a numerical model of coal seams under microwave radiation is established to simulate the change law of pressure, gas seepage velocity, and free methane content of actual coal seams under microwave radiation. It is concluded that the fast heating and stable temperature resulting from microwave radiation are beneficial for the crack propagation of coal near reservoirs. The results of this study provide a new technological method for actual CBM exploitation and a new research direction for unconventional natural gas energy output. American Chemical Society 2023-07-18 /pmc/articles/PMC10399155/ /pubmed/37546679 http://dx.doi.org/10.1021/acsomega.3c02098 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Tu, Yuying
Zhang, Yongli
Dong, Yubin
Ma, Yulin
Methane Seepage Characteristics in Coal Seams under Microwave Radiation
title Methane Seepage Characteristics in Coal Seams under Microwave Radiation
title_full Methane Seepage Characteristics in Coal Seams under Microwave Radiation
title_fullStr Methane Seepage Characteristics in Coal Seams under Microwave Radiation
title_full_unstemmed Methane Seepage Characteristics in Coal Seams under Microwave Radiation
title_short Methane Seepage Characteristics in Coal Seams under Microwave Radiation
title_sort methane seepage characteristics in coal seams under microwave radiation
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10399155/
https://www.ncbi.nlm.nih.gov/pubmed/37546679
http://dx.doi.org/10.1021/acsomega.3c02098
work_keys_str_mv AT tuyuying methaneseepagecharacteristicsincoalseamsundermicrowaveradiation
AT zhangyongli methaneseepagecharacteristicsincoalseamsundermicrowaveradiation
AT dongyubin methaneseepagecharacteristicsincoalseamsundermicrowaveradiation
AT mayulin methaneseepagecharacteristicsincoalseamsundermicrowaveradiation