| 胜利油气区东营凹陷现今地温场研究 |
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| 引用本文： | 熊振,王良书.胜利油气区东营凹陷现今地温场研究[J].高校地质学报,1999,5(3):312-321. |
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| 作者姓名： | 熊振 王良书 |
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| 作者单位： | [1]江苏省地震局地震工程研究院 [2]南京大学地球科学系 |
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| 摘 要： | 文中利用热导率分散模型，根据地层中砂质含量数据计算东营凹陷第三系各沉积地层单元的原地热导率，再利用热阻率法根据东营凹陷１７０口测温井中测温资料计算出第三系各地层界面上和特征深度处温度，进而研究东营凹陷现今地下温度。计算结果表明，第三系各地介面上地温分布特征主要受各界面埋藏深度控制，而地下各特征深度上地温分布特征主要受热流平面分布特征控制。
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| 关 键 词： | 热阻率 热流 地温场 东营凹陷 油气成因 |
| 收稿时间： | 1999-09-20 |
| 修稿时间： | 1999-09-20 |
DISTRIBUTION GEO TEMPERATURE IN DONGYING DEPRESSION,SHENGLI OIL AND GAS FIELD, NORTH CHINA BASIN |
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| Xiong Zhen,Wang Liangshu,Li Cheng,Shi Xiaobin,Guo Suiping,Wang Jie.DISTRIBUTION GEO TEMPERATURE IN DONGYING DEPRESSION,SHENGLI OIL AND GAS FIELD, NORTH CHINA BASIN[J].Geological Journal of China Universities,1999,5(3):312-321. |
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| Authors: | Xiong Zhen Wang Liangshu Li Cheng Shi Xiaobin Guo Suiping Wang Jie |
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| Institution: | 1. Institute of Earthquake Engineering for Jiangsu Province, 210014; 2. Department of Earth Sciences, Nanjing University, 210093, Research Center of Oil and Gas, Nanjing University, 210093; 3. Geological Research Institute of Shengli Oil and Gas Field, Dongying City, Shandong Province, 257105 |
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| Abstract: | Geo-temperature is a decisive factor for the formation of oi1 and gas. Distribution of geotemperature is a geophysical field changing with time and boundary conditions. Present geothermal field is the result of the origin and evolution of sedimentary basin, and a basic constraint for the paleo-geothermal field modeling and inversion.
The thermal resistance method and bottom hole temperatures are used to determine heat flow and subsurface temperature. The dispersive model of sedimentary rock thermal conductivity is applied to determine the in situ thermal conductivity of Tertiary strata in Dongying Depression,
which ranges from 1.6w/mK to 2.4W/mK for Minghuazhen Formation (Nm), from 1.6W/m K to 3.3mW/mK for Guantao Formation(Ng) and from 2.5W/mK to 3.1mW/mK for Dongying Formation (Ed). It has been found that in situ thermal conductivity in Dongying Depression is mainly related to sandy content and depth of the Tertiary sedimentary strata.
Based on the results of above calculation and the measured temperature data, temperatures on different interface, and some particular depths are calculated at the 170 temperature measured wells using thermal resistance method. The temperature changes from 2212 to 5512 on the top surface of Minghuazhen Formation (Nm), and from 41℃ to 72℃ at its bottom surface. Temperatures on the bottom surface of Guantao Formation(Ng) are from 53℃ to 86℃. On the bottom surface of Dongying Formation(Ed), geo-temperatures are from 50 to 104℃.
In Dongying Depression, geo-temperature ranges from 4912 to 8012 at the depth of lO00m, from 72℃ to 106℃ at the depth of 2000m , from 89℃ to 146℃ at the depth of 3000m, from 103℃ to 186℃ at the depth of 4000m. from 119℃ to 222℃ at the depth of 5000m The geo-temperature distribution at the same depth is closely related to the heat flow. |
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| Keywords: | thermal resistance heat flow geo temperature field in situ thermal conductivity Dongying Depression |
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