• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Interpretation of upwelling zones and structural controls at Lee Allen and Salt Wells geothermal fields With two-meter temperature surveys, soil gas surveys, and analysis of existing geothermal exploration data.
【24h】

Interpretation of upwelling zones and structural controls at Lee Allen and Salt Wells geothermal fields With two-meter temperature surveys, soil gas surveys, and analysis of existing geothermal exploration data.

机译：Lee Allen和Salt Wells地热田的上升流区解释和结构控制具有两米的温度调查，土壤气体调查以及对现有地热勘探数据的分析。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Development of an electricity grade geothermal resource requires a geothermal reservoir but these can be difficult to assess since they occur at depth. Near-surface manifestations such as thermal fluid upwelling zones are commonly connected to the geothermal reservoir at depth. Therefore the structural controls on an upwelling zone can be used to better target geothermal reservoirs. In this study two-meter temperature and soil gas surveys were completed and analyzed in relation to existing geothermal exploration data at Lee Allen and Salt Wells geothermal fields, Nevada, to better define upwelling zones and their structural controls, and better target associated geothermal reservoirs at depth.;Over 100 two-meter temperatures were measured at the Lee Allen and Salt Wells geothermal areas in western Nevada, USA. The data were corrected for seasonal temperature drift. Analysis of remotely sensed imagery indicated that albedo effects on two-meter temperatures were secondary to geothermal influences. At Salt Wells two-meter temperature anomalies were discovered at Simpson pass and along the eastern flank of the Bunejug Mountains. Soil gas anomalies were found in these same areas. This data are consistent with and expand upon thirty-centimeter temperature data and mapped hydrothermal features. At Lee Allen, two-meter temperature anomalies were discovered at Lee Hot Spring and two other areas lying respectively northeast of Lee Hot Spring, and north of Allen Ridge. Soil gas anomalies were discovered at and near Lee Hot Spring, and north of Allen Ridge. The two-meter temperature and soil gas anomalies near Lee Hot Spring are consistent with elevated temperatures in wells and mapped hydrothermal features. The two-meter temperature and soil gas anomalies north of Allen Ridge correlate with recently mapped hydrothermal features, but current thermal activity was previously unknown in this area.;From these data, inferences were made on the structural controls of fluid flow and the location of upwelling zones. At Salt Wells, at least two upwelling zones are suggested. Both of these upwelling zones occur within an accommodation zone between oppositely dipping normal fault sets. One of the inferred upwelling zones is associated with several faults at the southern end of the accommodation zone. The second upwelling zone follows another set of faults along the Bunejug Mountains, near the northern margin of the accommodation zone. At Lee Allen, at least two upwelling zones are indicated. One is in the area of Lee Hot Spring at the southern end of Allen Ridge and one is north of Allen Ridge. Both of these upwelling zones occur near a northeast-striking normal fault, which suggests that this fault exercises a significant control on the geothermal system and is likely connected to the main geothermal reservoir at depth.
机译：电力级地热资源的开发需要地热储层，但是由于它们发生在深处，因此可能难以评估。诸如热流体上升区之类的近地表通常与深层储层相连。因此，在上升流带的结构控制可以用来更好地瞄准地热储层。在这项研究中，完成了两米的温度和土壤气体调查，并与内华达州李艾伦和盐井地热田的现有地热勘探数据进行了分析，以更好地定义上升流带及其结构控制，并更好地确定了相关的地热储层。在美国内华达州西部的Lee Allen和Salt Wells地热区测量了超过100米的两米温度。数据针对季节性温度漂移进行了校正。对遥感图像的分析表明，反照率对两米温度的影响次于地热影响。在盐井（Salt Wells），辛普森山口（Simpson pass）以及沿布尼朱格山（Bunejug Mountains）东翼发现了两米的温度异常。在这些地区发现了土壤气异常。此数据与30厘米的温度数据和映射的水热特征一致，并在此基础上扩展。在李艾伦（Lee Allen），在李温泉（Lee Hot Spring）和另外两个分别位于李温泉（Lee Hot Spring）东北和艾伦里奇（Allen Ridge）以北的地区发现了两米的温度异常。在李温泉及其附近以及艾伦岭以北发现了土壤气异常。 Lee Hot Spring附近的两米温度和土壤气异常与井中的高温和映射的热液特征一致。艾伦岭以北两米的温度和土壤气异常与最近测绘的水热特征有关，但该区域目前的热活动以前是未知的;;根据这些数据，可以推断出流体流动的结构控制和位置。上升区。在盐井，建议至少有两个上升流区。这两个上升区都出现在相对倾斜的正常断层组之间的适应区内。推断的上升流区之一与该住宿区南端的若干断层有关。第二个上升流带沿着位于住宿区北缘附近的Bunejug山脉的另一组断层。在李·艾伦（Lee Allen），至少指示了两个上升流区。一处在艾伦岭南端的利温泉区，一处在艾伦岭以北。这两个上升区都发生在东北走向的正断层附近，这表明该断层对地热系统进行了重要控制，并且很可能与深层的主要地热储层相连。

著录项

  • 作者

    Skord, Justin.;

  • 作者单位

    University of Nevada, Reno.;

  • 授予单位 University of Nevada, Reno.;
  • 学科 Alternative Energy.;Energy.;Geochemistry.;Geology.
  • 学位 M.S.
  • 年度 2012
  • 页码 121 p.
  • 总页数 121
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号