Temperature Logging Tool for Deep, Hot Drill Holes

用于深热钻孔的温度记录工具

• 批准号: 9018278
• 负责人: David Blackwell
• 金额: $ 4.72万
• 依托单位: Southern Methodist University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-01 至 1993-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9018278&HistoricalAwards=false
• 关键词: Temperature; Logging; Tool; Deep; Hot

This award provides 50% funding for the development of a logging tool for temperature versus depth measurements in deep and hot drillholes. The logging tool will be developed by the PI in the Department of Geological Sciences at Southern Methodist University. SMU is committed to providing the rest of the funding required for this project. Use of present equipment to measure heat flow through the Earth's crust is severely limited in depth and temperature, mainly because of the use of electric cabling to transmit back to the surface. Consequently, few research quality temperature logging tools can be used at more than 450K and 3 kilometers. This project will adapt downhole computer and cryogenic technology to develop a temperature logging tool that is more accurate than existing ones and capable of operating up to 650K and 5 kilometers. Such measurements are needed to interpret the heat flow from the interior and its role in the Earth's thermal budget.

该合同将提供50%的资金，用于开发用于深孔和热孔中温度与深度测量的测井工具。该测井工具将由南卫理公会大学地质科学系的PI开发。新大承诺提供该项目所需的其余资金。使用现有的设备来测量穿过地壳的热流在深度和温度上受到严重限制，主要是因为使用电缆将热流传输回地表。因此，很少有研究质量的温度测井工具可以在超过450K和3公里的范围内使用。该项目将采用井下计算机和低温技术开发一种比现有温度测井工具更精确的温度测井工具，能够在650K和5公里的范围内工作。需要这样的测量来解释来自内部的热流及其在地球热收支中的作用。