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一、仪器使用目的目前自然伽玛和微电极测井是分别单独进行测量,工作量大,费时费事。为此,我们在原综合仪、自然伽玛井下仪的基础上研制了“自然伽玛微电极复合测井仪”。本仪器一次下井可同时测到自然伽玛、微电极三条曲线,然后通过步进器换档,又可进行4米、2.5米、0.5米、自然电位、井径、井斜等项目的测井。二、仪器结构与工作原理本仪器由自然伽玛井下仪器、微电极、井径仪、自动换电极等部分组成,其结构如图1所示。
First, the purpose of the instrument The current natural gamma ray and microelectrode logging are separately measured, the workload, time-consuming. To this end, we developed the “natural gamma microelectrode composite logging tool” on the basis of the original comprehensive instrument and the natural gamma downhole instrument. The instrument can be measured down to a natural gamma, micro-electrode three curves, and then through the stepper shift, but also for 4 meters, 2.5 meters, 0.5 meters, natural potential, diameter, well logging and other projects logging . Second, the instrument structure and working principle The instrument from the natural gamma downhole equipment, microelectrodes, diameter caliper, automatic exchange electrode and other components, the structure shown in Figure 1.