| 利用测井资料获取松辽盆地深部热物性参数 |
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| 关键词:Songliao Basin thermophysical property geophysical logging thermal conductivity |
| 基金项目:国家自然科学基金项目(编号: 41602271; 41741018);中国地质调查局项目(编号: DD20160207);中国地质科学院水文地质环境地质研究所基本科研业务费项目(编号: SK201501);国家矿产资源储量技术标准体系建设项目(编号: CB2017-4-5) |
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| 摘要: |
| An Analysis of Thermal Conductivity in Songliao Basin Based on Logging Parameters |
| Thermal conductivity is an important parameter to study the deep thermal structure of the sedimentary basin. The traditional way to obtain the thermal conductivity by measurement of deep core test is limited by funding, sampling conditions and some other factors. Meanwhile, due to the reason that geothermal wells are affected by temperature and pressure conditions, indoor test results cannot represent the in-situ thermal conductivity of the rocks. In this study, the measured thermal conductivity and logging parameters of cores from 3 289 to 4 536 meters in the third spudding of well Songke 2 are obtained, and the relationship between thermal conductivity of sandstone, mudstone and rhyolite and logging parameters was analyzed. The results show that correlation between porosity, wave velocity and thermal conductivity of sandstone logging parameters is obvious, but the correlation for mudstone and rhyolite is not high. On such a basis, the authors analyzed the influence of temperature and pressure on the thermal conductivity of the Songliao Basin. It is concluded that the thermal conductivity of the third spudding of well Songke 2 in Songliao Basin is reduced by about 30% due to temperature effect, and the thermal conductivity is increased by about 10% due to pressure effect compared with he measured values in laboratory. The results of this study can provide a new idea for the acquisition of deep thermal conductivity and geothermal flow value of basins in China, especially for some abandoned wells with logging dates but can not obtain deep cores. |
| MA Feng,WANG Gui-ling,SUN Zhan-xue,ZHANG Wei,HOU He-sheng,GUO Xiao-yang.2019.An Analysis of Thermal Conductivity in Songliao Basin Based on Logging Parameters[J].Acta Geoscientica Sinica,40(2):350-360. |
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