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Side-powered ground well DC electric detection method and device

A technology of direct current method and detection method, which is applied in the field of geophysical exploration, can solve problems such as difficult implementation and huge system, and achieve the effect of high transmission power and improved detection effect

Active Publication Date: 2019-02-15
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system involved in this invention is too large and difficult to implement in actual engineering. The measuring electrodes are located in vertical holes or roadways, and horizontal holes are not involved. In addition, it does not use different power supply-measurement combinations to judge abnormal azimuths

Method used

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  • Side-powered ground well DC electric detection method and device
  • Side-powered ground well DC electric detection method and device
  • Side-powered ground well DC electric detection method and device

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Embodiment

[0034] In this embodiment, firstly, a detection method of earth well direct current method with lateral power supply is provided. Combine below figure 1 - Figure 4 details the method.

[0035] figure 1 A schematic diagram of a detection method and device of a ground well direct current method with lateral power supply is illustrated. Such as figure 1 As shown, in this embodiment, two power supply electrodes named A and B are arranged on the ground, respectively connected to the power supply electrode named C at infinity to form two sets of power supply electrodes AC and BC. The electrodes (AC, BC) are respectively connected with the power supply equipment to form two sets of power supply systems, and the projection positions of the two power supply electrodes (A, B) are respectively located on both sides of the survey line.

[0036] Such as figure 1 As shown, in this embodiment, the receiving measuring line is arranged in the underground roadway or borehole, and the recei...

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Abstract

The invention relates to an electric detection method and device, belongs to the technical field of geophysical exploration, and specifically relates to a side-powered ground well DC electric detection method and device. A stable DC electric field is established at ground power supply electrodes, and the azimuth of an anomalous body relative to a measuring line is judged according to the difference of potential difference signals generated by different electrodes at the measuring line. The collected potential difference signals contain the information of a surrounding geological body with anomalous resistivity. A target body can be detected by processing and analyzing the overall data of the measuring line. The advantages, such as high transmitting power of the ground electrodes, various observation systems and close distance between an underground receiving electrode and the anomalous body, are utilized, and the detection effect can be improved.

Description

technical field [0001] The invention relates to an electrical detection method and a device, belonging to the technical field of geophysical exploration, in particular to a laterally powered ground well direct current detection method and a device. Background technique [0002] The direct current method is based on the difference in electrical conductivity of rocks and ores in the earth's crust, and is an exploration method for finding minerals and solving geological problems by observing and studying the artificially established distribution of direct current electric fields. The conventional direct current method can be divided into ground high-density electric method and mine high-resolution electric method according to the construction environment. The construction environment of the ground high-resolution electric method is the ground. Distribution of underground resistivity. The construction environment of mine high-resolution direct current method is the mine roadway...

Claims

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Application Information

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IPC IPC(8): G01V3/26
CPCG01V3/26
Inventor 王鹏冯宏李明星姚伟华苏超
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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