河南尉氏县西部地质地球物理综合解译及地热资源远景区预测
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本文为郑州航空港经济综合试验区(尉氏段)地热资源调查项目(编号:豫国土资发\[2017\]22 号)的成果


Comprehensive geological and geophysical interpretation and geothermal resources prospection of western Weishi County, Henan Province
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    摘要:

    尉氏县地热资源开发尚处于起步阶段,为适应大规模地热资源开发需求,当前急需探明该区地热资源赋存情况。研究区位于太康隆起次级构造单元中部鼻状构造带及尉氏—薛店次凹带结合部位,本文通过尉氏县城西部所采集的220个大地电磁测深点的二维及三维反演工作,结合二维反射地震剖面,分析了研究区地层、断裂展布构造,并对地热资源远景区进行了预测。维性分析结果表明研究区主构造走向为北西向,二维及三维大地电磁测深反演结果表明研究区4 km以浅地层由上到下可分为四层:新近系—第四系、三叠系、石炭系—二叠系、寒武系—奥陶系;综合二维反射地震及大地电磁测深资料,剖面位置处可识别出三条正断层。选择断裂带周边或穿过断裂带钻井,对水量有一定保证。

    Abstract:

    Geothermal resources development in Weishi County is still in its infancy. In order to meet the needs of large- scale geothermal resources development, it is urgent to find out the occurrence of geothermal resources in this area. The study area is located in the middle of the secondary tectonic unit of Taikang uplift and the junction of Weishi—Xuedian sub- depression zone. Based on the two- dimensional and three- dimensional inversion of 220 geomagnetic sounding points collected in the western part of Weishi County town, combined with two- dimensional reflection seismic profiles, the strata and fault distribution structures in the study area are analyzed, and the geothermal resource prospect area is predicted. Dimensional analysis results show that the main structural strike of the study area is NW. Two- dimensional and three- dimensional magnetotelluric sounding inversion results show that the shallow strata of 4 km in the study area can be divided into four layers from top to bottom: Neogene—Quaternary Triassic Carboniferous—Permian Cambrian—Ordovician. Three normal faults can be identified at the section location by synthesizing two- dimensional reflection seismic and magnetotelluric sounding data. The selection of drilling around or across the fault zone can ensure the amount of water.

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刘志龙,朱怀亮,胥博文,叶高峰,胡志明,李文龙,王兴元.2020.河南尉氏县西部地质地球物理综合解译及地热资源远景区预测[J].地质论评,66(5):1446-1455,[DOI].
LIU Zhinglong, ZHU Huailiang, XU Bowen, YE Gaofeng, HU Zhiming, LI Wenlong, WANG Xingyuan.2020. Comprehensive geological and geophysical interpretation and geothermal resources prospection of western Weishi County, Henan Province[J]. Geological Review,66(5):1446-1455.

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历史
  • 收稿日期:2019-03-11
  • 最后修改日期:2020-06-13
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  • 在线发布日期: 2020-09-19
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