Permeability Characteristics of Coal after Supercritical CO2 Adsorption at Different Temperatures
CO2 storage in coal seams has become one effective method to reduce CO2 emission and help exploit coalbed methane (CBM). The permeability is a key parameter for CBM extraction. In deep coal seams (>800 m), CO2 exists in the supercritical state. In the present work, permeability tests were perform...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2020/8836349 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832560267789074432 |
|---|---|
| author | Xueying Liu Jin Yu Di Wu Xiaochun Xiao |
| author_facet | Xueying Liu Jin Yu Di Wu Xiaochun Xiao |
| author_sort | Xueying Liu |
| collection | DOAJ |
| description | CO2 storage in coal seams has become one effective method to reduce CO2 emission and help exploit coalbed methane (CBM). The permeability is a key parameter for CBM extraction. In deep coal seams (>800 m), CO2 exists in the supercritical state. In the present work, permeability tests were performed on briquettes before and after supercritical CO2 (SC-CO2) adsorption at various temperatures to investigate the effects of SC-CO2 adsorption on the permeability. Experimental results show that SC-CO2 adsorption leads to volumetric expansion and permeability augment. The permeability enhancement decreases continuously at 35°C, while it initially increases and reduces at pressures exceeding 9 or 10 MPa at 45 or 55°C, respectively. Besides, the permeability enhancement ratio shows a linear increase with the expansion. The research provides a basis for further research on the enhanced coalbed methane (ECBM) recovery. |
| format | Article |
| id | doaj-art-a88a4c149be546c390b2b3f06c6f7ebc |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-a88a4c149be546c390b2b3f06c6f7ebc2025-02-03T01:27:59ZengWileyGeofluids1468-81151468-81232020-01-01202010.1155/2020/88363498836349Permeability Characteristics of Coal after Supercritical CO2 Adsorption at Different TemperaturesXueying Liu0Jin Yu1Di Wu2Xiaochun Xiao3Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, ChinaFujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, ChinaSchool of Mechanics and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, ChinaSchool of Mechanics and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, ChinaCO2 storage in coal seams has become one effective method to reduce CO2 emission and help exploit coalbed methane (CBM). The permeability is a key parameter for CBM extraction. In deep coal seams (>800 m), CO2 exists in the supercritical state. In the present work, permeability tests were performed on briquettes before and after supercritical CO2 (SC-CO2) adsorption at various temperatures to investigate the effects of SC-CO2 adsorption on the permeability. Experimental results show that SC-CO2 adsorption leads to volumetric expansion and permeability augment. The permeability enhancement decreases continuously at 35°C, while it initially increases and reduces at pressures exceeding 9 or 10 MPa at 45 or 55°C, respectively. Besides, the permeability enhancement ratio shows a linear increase with the expansion. The research provides a basis for further research on the enhanced coalbed methane (ECBM) recovery.http://dx.doi.org/10.1155/2020/8836349 |
| spellingShingle | Xueying Liu Jin Yu Di Wu Xiaochun Xiao Permeability Characteristics of Coal after Supercritical CO2 Adsorption at Different Temperatures Geofluids |
| title | Permeability Characteristics of Coal after Supercritical CO2 Adsorption at Different Temperatures |
| title_full | Permeability Characteristics of Coal after Supercritical CO2 Adsorption at Different Temperatures |
| title_fullStr | Permeability Characteristics of Coal after Supercritical CO2 Adsorption at Different Temperatures |
| title_full_unstemmed | Permeability Characteristics of Coal after Supercritical CO2 Adsorption at Different Temperatures |
| title_short | Permeability Characteristics of Coal after Supercritical CO2 Adsorption at Different Temperatures |
| title_sort | permeability characteristics of coal after supercritical co2 adsorption at different temperatures |
| url | http://dx.doi.org/10.1155/2020/8836349 |
| work_keys_str_mv | AT xueyingliu permeabilitycharacteristicsofcoalaftersupercriticalco2adsorptionatdifferenttemperatures AT jinyu permeabilitycharacteristicsofcoalaftersupercriticalco2adsorptionatdifferenttemperatures AT diwu permeabilitycharacteristicsofcoalaftersupercriticalco2adsorptionatdifferenttemperatures AT xiaochunxiao permeabilitycharacteristicsofcoalaftersupercriticalco2adsorptionatdifferenttemperatures |