自热耗散式油井注入液体流速传感器  

Based Self-Heating Dissipation Flow Velocity Sensor of the Liquid Injected into the Oil Well

作　　者：方华军[1] 温殿忠[2] 

机构地区：[1]清华大学微电子学研究所,北京市100084 [2]黑龙江大学敏感技术研究所,哈尔滨150080

出　　处：《仪表技术与传感器》2000年第9期6-9,共4页Instrument Technique and Sensor

基　　金：哈尔滨市科委重点攻关项目资助!(981 1 2 1 1 0 81 );黑龙江省自然科学基金项目资助!(E982 9)

摘　　要：结合油田井下流速测量的特点 ,论述了一种适用于井下测量的低流速、高粘度油井注入液体流速检测的新型传感器。该传感器采用PTCR自热耗散原理检测油井注入液体流速。解决了井下空间狭窄、流体粘度大、工作温度偏高、环境压力偏大等测量难题。设计并制造了井下PTCR热耗散式流速传感器。实验和试用结果表明 ,该传感器具有良好的重复性和可靠性 。Taking into consideration the characteristics of the under-well measurement of flow velocity, this paper discusses a new sensor for measurement of flow velocity of the injected liquid into the oil well that is low in velocity and high in viscosity, suitable for the under-well measurement. This sensor is based the theory on self-heating dissipation of PTCR. It solved the measurement problem that is little under-well space, high liquid viscosity and high operation temperature. We designed and made the entire under-well PTCR heated dissipation velocity sensor. Experiment states this sensor is good in performance, and there are great useful value for oil produce.

关 键 词：流速传感器 自热耗散 油井注入液体 PTCR 

分 类 号：TE937[石油与天然气工程—石油机械设备] TP212.1[自动化与计算机技术—检测技术与自动化装置]