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微电极系统由1111和1113两部分组成。其中1113包括微电极极板推靠部分和井径测量部分,可以单独与1756电测井面板配合使用。通过1756面板控制极板的张开和收拢,并由这个面板供电进行微电极系测井和井径曲线的记录。1111仅包括电子线路部分,当与1113组合时,可以利用3456电阻率面板进行微电极测井。这时,微电极和井径仪都由1111的电子线路供电,并在此电路中对电阻率信号进行处理,而将直流的电阻率信号送往地面。1113单独使用时的工作原理,和第九章介绍的普通电极系的工作原理完全相同,因此本章只叙述1111与1113组合仪器的工作原理。
Microelectrode system consists of 1111 and 1113 two parts. Among them, the 1113 includes a micro-electrode plate pushing part and a caliper measuring part, and can be used alone with the 1756 electrical logging panel. The 1756 panel is used to control the opening and closing of the plates and the microelectrode system logging and well diameter curve recording is performed by this panel. The 1111 includes only the electronics section, which, when combined with the 1113, allows microelectrode logging using the 3456 Resistivity Panel. At this point, both the microelectrode and the caliper are powered by the 1111 electronics, which process the resistivity signal and send the DC resistivity signal to the surface. The working principle of 1113 when used alone is the same as that of the ordinary electrode system described in Chapter 9. Therefore, this chapter only describes the working principle of 1111 and 1113 combination instruments.