Analyzing and Estimating Thermal Conductivity of Sedimentary Rocks from Mineral Composition and Pore Property
In this study, thermal conductivities of 128 rock samples located in the Xiong’an New Area and Tarim Basin were measured using the optical scanning and transient plane source methods. The thermal conductivities of the Xiong’an New Area samples range from 1.14 to 6.69 W/(m·K), in which the mean therm...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/6665027 |
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| author | Boning Tang Chuanqing Zhu Nansheng Qiu Yue Cui Sasa Guo Xin Luo Baoshou Zhang Kunyu Li Wenzheng Li Xiaodong Fu |
| author_facet | Boning Tang Chuanqing Zhu Nansheng Qiu Yue Cui Sasa Guo Xin Luo Baoshou Zhang Kunyu Li Wenzheng Li Xiaodong Fu |
| author_sort | Boning Tang |
| collection | DOAJ |
| description | In this study, thermal conductivities of 128 rock samples located in the Xiong’an New Area and Tarim Basin were measured using the optical scanning and transient plane source methods. The thermal conductivities of the Xiong’an New Area samples range from 1.14 to 6.69 W/(m·K), in which the mean thermal conductivities of dolomite and sandstone are 4.95±1.19 and 1.80±0.44 W/m·K, respectively. In the Tarim Basin, sandstone samples have thermal conductivities ranging from 1.21 to 3.56 W/(m·K) with a mean value of 2.51±0.66 W/m·K. The results can provide helpful reference data for studies of geothermics and petroleum geology. Calculation correction and water-saturated measurements were conducted to acquire in situ rock thermal conductivity, and good consistency was found between both. Compaction diagenesis enhances bulk thermal conductivity of sedimentary rocks, particularly sandstones, by decreasing the rock porosity and mineral particle size. Finally, correction factors with respect to mineral grains were proposed to correct the thermal resistance of intergrain contacts and degree of intactness of crystals, and an optimized formula was adopted to calculate the thermal conductivity of sedimentary rock based on rock structure and mineral constituents. |
| format | Article |
| id | doaj-art-0c1f14a9766e4a8880e8853c180a53b2 |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-0c1f14a9766e4a8880e8853c180a53b22025-02-03T06:46:10ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/66650276665027Analyzing and Estimating Thermal Conductivity of Sedimentary Rocks from Mineral Composition and Pore PropertyBoning Tang0Chuanqing Zhu1Nansheng Qiu2Yue Cui3Sasa Guo4Xin Luo5Baoshou Zhang6Kunyu Li7Wenzheng Li8Xiaodong Fu9State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, Beijing 102249, ChinaResearch Institute of Petroleum Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, ChinaExploration and Development Research Institute, PetroChina Southwest Oil & Gas Field Company, Chengdu, Sichuan 610041, ChinaPetroChina Hangzhou Institute of Geology, Hangzhou 310023, ChinaPetroChina Hangzhou Institute of Geology, Hangzhou 310023, ChinaIn this study, thermal conductivities of 128 rock samples located in the Xiong’an New Area and Tarim Basin were measured using the optical scanning and transient plane source methods. The thermal conductivities of the Xiong’an New Area samples range from 1.14 to 6.69 W/(m·K), in which the mean thermal conductivities of dolomite and sandstone are 4.95±1.19 and 1.80±0.44 W/m·K, respectively. In the Tarim Basin, sandstone samples have thermal conductivities ranging from 1.21 to 3.56 W/(m·K) with a mean value of 2.51±0.66 W/m·K. The results can provide helpful reference data for studies of geothermics and petroleum geology. Calculation correction and water-saturated measurements were conducted to acquire in situ rock thermal conductivity, and good consistency was found between both. Compaction diagenesis enhances bulk thermal conductivity of sedimentary rocks, particularly sandstones, by decreasing the rock porosity and mineral particle size. Finally, correction factors with respect to mineral grains were proposed to correct the thermal resistance of intergrain contacts and degree of intactness of crystals, and an optimized formula was adopted to calculate the thermal conductivity of sedimentary rock based on rock structure and mineral constituents.http://dx.doi.org/10.1155/2021/6665027 |
| spellingShingle | Boning Tang Chuanqing Zhu Nansheng Qiu Yue Cui Sasa Guo Xin Luo Baoshou Zhang Kunyu Li Wenzheng Li Xiaodong Fu Analyzing and Estimating Thermal Conductivity of Sedimentary Rocks from Mineral Composition and Pore Property Geofluids |
| title | Analyzing and Estimating Thermal Conductivity of Sedimentary Rocks from Mineral Composition and Pore Property |
| title_full | Analyzing and Estimating Thermal Conductivity of Sedimentary Rocks from Mineral Composition and Pore Property |
| title_fullStr | Analyzing and Estimating Thermal Conductivity of Sedimentary Rocks from Mineral Composition and Pore Property |
| title_full_unstemmed | Analyzing and Estimating Thermal Conductivity of Sedimentary Rocks from Mineral Composition and Pore Property |
| title_short | Analyzing and Estimating Thermal Conductivity of Sedimentary Rocks from Mineral Composition and Pore Property |
| title_sort | analyzing and estimating thermal conductivity of sedimentary rocks from mineral composition and pore property |
| url | http://dx.doi.org/10.1155/2021/6665027 |
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