High Temperature Semiconductor Sensor for Bore Hole Logging

用于钻孔测井的高温半导体传感器

• 批准号: 8760497
• 负责人: Gerald Entine
• 金额: $ 5万
• 依托单位: Radiation Monitoring Devices Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-02-01 至 1988-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8760497&HistoricalAwards=false
• 关键词: Temperature; Semiconductor; Sensor; Bore; Hole

Exploratory drilling for oil, gas, mineral, or geothermal energy resources, as well as drilling for purely scientific purposes, often involves bore hole temperatures in excess of150C. High temperature conditions prevent current nuclear measurement tools from being used for bore hole logging of important variables such as density (via gamma ray backscattering measurements) or chemical composition (via neutron activation techniques). Nuclear detectors in use today for these applications must be cooled, but the bore hole dimensions do not allow for the bulky cooling apparatus that would be needed to maintain the system at working temperatures for a practical period of time. This project is an investigation of the properties of zinc telluride (ZnTe), a high atomic number, high density candidate solid state nuclear detector theoretically capable of operating efficiently at 200C or higher. The initial investigation of ZnTe properties is a Phase I project under the program for Small Business Innovation Research. Successful completion of this phase is expected to lead to the development of a high.temperature sensor system for drill hole logging that would have important scientific as well as commercial benefits.

石油、天然气、矿产或地热能资源的勘探钻探，以及纯科学目的的钻探，通常涉及到超过150摄氏度的钻孔温度。高温条件使现有的核测量工具无法用于重要变量的井眼测井，如密度（通过伽马射线后向散射测量）或化学成分（通过中子活化技术）。目前用于这些应用的核探测器必须冷却，但钻孔尺寸不允许使用庞大的冷却设备，而冷却设备将需要将系统维持在工作温度下一段实际时间。本项目是研究碲化锌（ZnTe）的性质，这是一种高原子序数，高密度的候选固体核探测器，理论上能够在200℃或更高的温度下有效工作。ZnTe物业的初步调查是小企业创新研究计划的第一期项目。这一阶段的成功完成有望带来较高的开发。应用温度传感器系统进行井眼测井具有重要的科学和商业效益。