Laboratory Measurement and Interpretation of the Changes of Physical Properties after Heat Treatment in Tight Porous Media
Prevention of water blocking and optimization of multiscale flow channels will increase gas production of tight reservoirs. Physical properties of samples from representative tight gas reservoirs were measured before and after high temperature treatment. Results show that, with the increase of treat...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2015/341616 |
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| author | Yili Kang Mingjun Chen Lijun You Xiangchen Li |
| author_facet | Yili Kang Mingjun Chen Lijun You Xiangchen Li |
| author_sort | Yili Kang |
| collection | DOAJ |
| description | Prevention of water blocking and optimization of multiscale flow channels will increase gas production of tight reservoirs. Physical properties of samples from representative tight gas reservoirs were measured before and after high temperature treatment. Results show that, with the increase of treatment temperature, mass decreases, acoustic transit time increases, and permeability and porosity increase. Permeability begins to increase dramatically if treatment temperature exceeds the threshold value of thermal fracturing, which is 600~700°C, 500~600°C, 300~500°C, and 300~400°C for shale, mudstone, tight sandstone, and tight carbonate rock, respectively. Comprehensive analyses indicate that the mechanisms of heat treatment on tight porous media include evaporation and dehydration of water, change of mineral structure, generation of microfracture, and network connectivity. Meanwhile, field implementation is reviewed and prospected. Interpretations indicate that, according to the characteristics of multiscale mass transfer in tight gas formation, combining heat treatment with conventional stimulation methods can achieve the best stimulation result. |
| format | Article |
| id | doaj-art-b38f1feb3ba74b7c939064e52dbac03f |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-b38f1feb3ba74b7c939064e52dbac03f2025-02-03T00:59:55ZengWileyJournal of Chemistry2090-90632090-90712015-01-01201510.1155/2015/341616341616Laboratory Measurement and Interpretation of the Changes of Physical Properties after Heat Treatment in Tight Porous MediaYili Kang0Mingjun Chen1Lijun You2Xiangchen Li3State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, ChinaPrevention of water blocking and optimization of multiscale flow channels will increase gas production of tight reservoirs. Physical properties of samples from representative tight gas reservoirs were measured before and after high temperature treatment. Results show that, with the increase of treatment temperature, mass decreases, acoustic transit time increases, and permeability and porosity increase. Permeability begins to increase dramatically if treatment temperature exceeds the threshold value of thermal fracturing, which is 600~700°C, 500~600°C, 300~500°C, and 300~400°C for shale, mudstone, tight sandstone, and tight carbonate rock, respectively. Comprehensive analyses indicate that the mechanisms of heat treatment on tight porous media include evaporation and dehydration of water, change of mineral structure, generation of microfracture, and network connectivity. Meanwhile, field implementation is reviewed and prospected. Interpretations indicate that, according to the characteristics of multiscale mass transfer in tight gas formation, combining heat treatment with conventional stimulation methods can achieve the best stimulation result.http://dx.doi.org/10.1155/2015/341616 |
| spellingShingle | Yili Kang Mingjun Chen Lijun You Xiangchen Li Laboratory Measurement and Interpretation of the Changes of Physical Properties after Heat Treatment in Tight Porous Media Journal of Chemistry |
| title | Laboratory Measurement and Interpretation of the Changes of Physical Properties after Heat Treatment in Tight Porous Media |
| title_full | Laboratory Measurement and Interpretation of the Changes of Physical Properties after Heat Treatment in Tight Porous Media |
| title_fullStr | Laboratory Measurement and Interpretation of the Changes of Physical Properties after Heat Treatment in Tight Porous Media |
| title_full_unstemmed | Laboratory Measurement and Interpretation of the Changes of Physical Properties after Heat Treatment in Tight Porous Media |
| title_short | Laboratory Measurement and Interpretation of the Changes of Physical Properties after Heat Treatment in Tight Porous Media |
| title_sort | laboratory measurement and interpretation of the changes of physical properties after heat treatment in tight porous media |
| url | http://dx.doi.org/10.1155/2015/341616 |
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