论文部分内容阅读
我队测井组坚持“工业学大庆”,走“自力更生”的道路,发挥集体智慧和力量,于1974年底试制成二极管井温仪。经两年使用,与原线绕热敏电阻井温仪比较,具有灵敏度高、误差小、成本低、容易检修等优点,在井下点测和连续测量都进行过试验,效果良好。对40℃以上(最高达42℃)和1070米的深孔也进行过测量,仪器均工作正常。一、井温仪原理及线路半导体二极管反向穿透电流随温度变化有显著差异,随着温度升高,反向穿透电流加
Our team of logging units insisted on “Daqing Industrial Science” and took the road of “self-reliance” to exert collective wisdom and strength. At the end of 1974, the company made a trial of diode well temperature instrument. After two years of use, it has the advantages of high sensitivity, small error, low cost, easy maintenance and so on. Compared with the original wire wound thermistor well temperature gauge, it has been tested well in spot measurement and continuous measurement, and the effect is good. Measurements were made for deep wells above 40 ° C (up to 42 ° C) and 1070 meters, and the instruments were working properly. First, the well temperature instrument principle and circuit semiconductor diode reverse penetration current with temperature significantly different, with the temperature, the reverse penetration current plus