双感应-八侧向测井仪线圈系温度补偿

Dual Induction Logging-Eight Lateral Logging Tool Coil Temperature Compensation

文章提出一种双感应-八侧向测井仪器线圈探头温度补偿的方法。其技术方案是:在感应线圈探头中心位置(sp探头附近)安装一个温度传感器,并通过三层管与采集电路中恒压电路的反馈网络相连接。一旦线圈系内部温度发生变化,恒压电路的输出也随之发生变化,我们通过采集电路将这个电压采集出来,通过计算可求出温度。将温度值传输给MCU,MCU再将此数据实时地通过相应的算法补偿给采集到的测井信号。这样最终的测井数据就能真实地反应地层相关参数,而这种温度补偿方法要比传统的靠镍丝和康铜丝来做温度补偿精度高,操作方便,并且不用更改线圈探头的机械结构。

This paper presents a temperature compensation method of dual induction logging tool coil probe. Technical solutions is to install a temperature sensor in the center of the induction coil probe location （ near sp probe） , which is connected by the three lcayer pipe and a feedback network in constant voltage acquisition circuit. Once the internal temperature of the coil system changes, the output of the constant voltage circuit also will be changed, we will collects voltage through the acquisition circuit, the temperature can be obtained by calculating. The temperature value is transmitted to the MCU, MCU will compensate the collected data of logging signal from time to time. Such final logging data can be true reaction formation parameters, and that temperature compensation method has higher accuracy than the traditional method of tern perattrre compensation by kang copper and nickel wire, is easier to operate, and do not change the mechanical structure of the coil probe .