Power grid pole mud resistivity measurement system

Abstract

The invention relates to the well logging field and discloses a power grid pole mud resistivity measurement system. The power grid pole mud resistivity measurement system of the invention comprises a mud tank and a handheld device; the handheld device comprises a resistance measurement module, a temperature measurement module, a resistivity calculation module and a USB interface; the mud tank comprises a mud tank body, a sealing cover and a USB base; an upper power grid electrode is arranged in the sealing cover; a lower power grid electrode is arranged in the mud tank; the USB base is provided with a USB connector; and the handheld device is connected with the mud tank through a USB. The power grid pole mud resistivity measurement system can provide a uniform electric field for mud in measurement, so that the accuracy of mud resistivity measurement can be improved; the USB communication interface is adopted, so that wiring is not required, and therefore, convenient operation and little possibility of making mistakes can be realized; two grounding ends are arranged in a circuit, and therefore, circuit interference can be can effectively reduced. With the power grid pole mud resistivity measurement system of the invention adopted, the size of a mud resistivity measurement instrument can be effectively decreased, and the portability of the instrument can be enhanced. According to the power grid pole mud resistivity measurement system, resistivity measurement and temperature measurement are combined together, and therefore, measuring precision can be ensured, and workload of measurement work can be decreased.

Description

technical field [0001] The invention relates to the field of well logging, in particular to a system for measuring electrical grid mud resistivity. Background technique [0002] Mud resistivity is an important parameter in well logging interpretation, but the existing mud resistivity testers are all bulky ground test instruments, which are inconvenient to measure and cannot meet the needs of the field where well conditions are becoming more and more complex. There are many preparations before the test and high wiring requirements, which bring a heavy burden to the testers. The measurement equipment box requires manual wiring to measure the mud resistivity, and the operation is relatively complicated. Wrong wiring will lead to incorrect measurement results, and even cause personal injury caused by large currents, and the measured results need to be manually calculated or consulted to obtain the standard temperature. The mud resistivity value below is not intuitive and simple...

AI Technical Summary

Problems solved by technology

The measurement equipment box requires manual wiring to measure the mud resistivity, and the operation is relatively complicated. Wrong wiring will lead to incorrect measurement results, and even cause personal injury caused by large currents, and the measured results need to be manually calculated or consulted to obtain the standard temperature. The mud resistivity value below is not intuitive enough

[0003] Moreover, the electrodes of traditional testing devices are mostly strip electrodes or circle electrodes, which cause uneven distribution of the electric field around the mud, thus affecting the measurement accuracy

[0004] In addition, traditional test equipment cannot detect temperature at the same time as resistance, so the measurement result of resistivity is not accurate enough

For the resistance measuring instrument with temperature measurement function, the accuracy of temperature measurement cannot be fully guaranteed, which will have an adverse effect on the resistivity measurement results

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