| 综合物探方法勘查在沈阳新城子盆地地热勘查中的应用效果 |
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| 引用本文： | 蒋丽丽,李祎昕.综合物探方法勘查在沈阳新城子盆地地热勘查中的应用效果[J].地质与资源,2016,25(6):575-579. |
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| 作者姓名： | 蒋丽丽 李祎昕 |
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| 作者单位： | 辽宁省物测勘查院, 辽宁 沈阳 112101 |
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| 基金项目： | 辽宁省地质矿产勘查局科研项目“精准探测技术应用研究”(项目编号2015-04) |
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| 摘 要： | 应用重、磁面积性测量成果推测地质构造位置、性质和基本特征,确定主控地质构造;并依据重力异常圈定盆地总体轮廓,利用局部变化特征划分次级凹陷和凸起,确定次级凸起部位和其边缘断裂带为寻找地热资源的有利部位.利用可控源音频大地电磁法(CSAMT)剖面测量成果,根据断裂带上的垂向地电断面上的视电阻率变化特征,推断断裂性质和深部的岩石破碎程度以及含水情况.根据二维地震测量,进一步确定断裂性质,推断出最佳含水部位,最终确定地热井井位.经钻探验证,成井结果与推断基本一致,打出了较理想的地热井.说明所采用的技术思路正确,应用综合物探勘查方法寻找隐伏的地热资源非常有效.
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| 关 键 词： | 综合物探方法 地热勘查 新城子盆地 辽宁省 |
| 收稿时间： | 2015-12-11 |
APPLICATION OF THE INTEGRATED GEOPHYSICAL METHODS IN THE GEOTHERMAL EXPLORATION IN XINCHENGZI BASIN,LIAONING PROVINCE |
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| JIANG Li-li,LI Yi-xin.APPLICATION OF THE INTEGRATED GEOPHYSICAL METHODS IN THE GEOTHERMAL EXPLORATION IN XINCHENGZI BASIN,LIAONING PROVINCE[J].Geology and Resources,2016,25(6):575-579. |
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| Authors: | JIANG Li-li LI Yi-xin |
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| Institution: | Liaoning Institute of Geophysical Exploration, Shenyang 112101, China |
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| Abstract: | The results of gravimetric and magnetic survey are adopted to infer the geological structural location, properties and characteristics. The outline of the basin is delineated by gravity anomalies. By local changing characters, secondary domes and sags are divided. The secondary domes and their marginal fault belts are advantageous positions for geothermal resources. Based on the results of CSAMT profile, with the varieties of apparent resistivity in the vertical geoelectric section of fault belt, the authors infer the fracture properties, deep rock broken degree and water content. With 2-D seismic survey, the fracture properties are further determined to confirm the best water area and eventually position the geothermal well site. The inference is successfully verified by drilling, showing that the technical approach is correct. The application of integrated geophysical prospecting methods for buried geothermal resources is effective. |
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| Keywords: | integrated geophysical method geothermal exploration Xinchengzi Basin Liaoning Province |
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