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Double-frequency induced polarization method water tank physical simulation experiment device

A dual-frequency IP method and physical simulation technology, which can be used in measuring devices, geophysical surveys, electric/magnetic exploration, etc., can solve the problems of poor measurement accuracy and reliability, and achieve more sensitive and reliable guidance. Good anti-interference performance, easy to replace the operation effect of the electrode

Inactive Publication Date: 2010-11-10
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the above, a very simple physical simulation experiment device for a sink was designed in the early stage. It is composed of a PVC test frame for placing electrodes and a wooden board with guide grooves. The PVC test frame is pulled by hand, and the accuracy and reliability of the measurement are very poor.

Method used

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  • Double-frequency induced polarization method water tank physical simulation experiment device
  • Double-frequency induced polarization method water tank physical simulation experiment device
  • Double-frequency induced polarization method water tank physical simulation experiment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: A kind of dual-frequency IP method water tank physical simulation experiment device of the present invention, the principle of its application is as follows figure 1 As shown, it uses the principle of dipole-dipole electromagnetic survey to simulate the marine environment in the laboratory tank, and uses the dual-frequency IP method to measure the intensification rate, resistivity electrical profile and electrical measurement of sulfide ore and other ores. The experimental device for depth measurement, the ratio of laboratory simulation measurement is 1:200. The overall structure of the tank physical simulation experiment device of the present invention can be found in figure 2 , 3 , including guide rail table 1, PVC test frame 2, belt pulley block 3, vertical support 4, level 5, transmitting electrode 6, receiving electrode 7, moving hand wheel 8, lifting hand wheel 9 and water tank 10 and other main components. The simulation experiment also requires ...

Embodiment 2

[0043] Embodiment 2: Using the experimental device of the present invention in Embodiment 1, a physical simulation experiment of a dual-frequency IP method was carried out in an indoor water tank, and the laboratory simulation measurement ratio was 1:200. The simulation experiment is as follows:

[0044] ①A chalcopyrite specimen with a length of 10cm, a width of 8cm and a thickness of 6cm is used, and the specimen is outcropped on the seabed.

[0045] ②Sea water: Based on the existing conditions, choose salt water with the same salinity as the average sea water. The average salinity of ocean water is 35 per thousand, that is, the salt content per kilogram of ocean water is 35g, and 3.5% salt water is used to simulate seawater samples.

[0046] ③Seabed sediments: Existing data show that the apparent resistivity of seabed mixed sediments is about 0.5 ohm m (Ω m), and the drilling mud soaked in brine with the same salinity as seawater to a depth of 200m ( Marl powder) is used a...

Embodiment 3

[0061] Example 3: The experimental device of the present invention in Example 1 was used to conduct a physical simulation experiment of a dual-frequency IP method in an indoor water tank, and the laboratory simulation measurement ratio was 1:200.

[0062] 1. Measurement conditions:

[0063] ①Take a spherical sulfide metal ore specimen with a diameter of 5cm as the ore specimen, and bury the sulfide metal ore specimen in the mud for measurement. The buried depth is about 4cm, and the seawater depth is about 30cm.

[0064] ② Utilize the dipole-dipole electromagnetic survey principle, simulate the marine environment in the laboratory tank, and apply the dual-frequency IP method to measure the intensification rate, resistivity electrical profile and electrical sounding of ores such as sulfide metal ore specimen ores Measurement experiments. The transmitting electrode is about 1cm into the mud, and the receiving electrode is a silver halide non-polarized electrode, and there is no...

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Abstract

The invention relates to a double-frequency induced polarization method water tank physical simulation experiment device which comprises a guide rail platform, a pulley block, a vertical bracket, a leveling instrument, an emission electrode, a receiving electrode, a movable hand wheel, a lifting hand wheel and a water tank, wherein the guide rail platform is a guide rail pair formed by two long guide rails, a bottom plate and a sliding block; the guide rail platform is provided with the leveling instrument, the movable hand wheel, a synchronous belt wheel and a synchronous belt; the two ends of the guide rails are fixed on the water tank; the vertical bracket is provided with a guide sleeve; two vertical rods of an experiment frame pass through a central hole of the guide sleeve; the vertical bracket is provided with the pulley block, flat belts, the lifting hand wheel, a balance weight shaft and a roll spring steel belt; one end of the two flat belts is fixed on a cross rod in the middle of the experiment frame; an electrode is installed in a hole at the lower transverse side of the experiment frame; the movable hand wheel is rotated to drive the experiment frame to horizontally move; and the lifting hand wheel is rotated to drive the experiment frame to be vertically lifted. The double-frequency induced polarization method water tank physical simulation experiment device can simulate marine environment in the water tank, and can measure the activation rate, the electrical resistivity profile and electric depth of ore by adopting a double-frequency induced polarization method.

Description

technical field [0001] The invention relates to a physical simulation experiment device for a dual-frequency IP method water tank, and relates to a two-coordinate dragging measurement simulation experiment device using the principle of dipole-dipole electromagnetic survey, in particular to a laboratory water tank , to simulate the marine environment, using the dual-frequency IP method to measure the intensification rate, resistivity electric profile and electric depth sounding of sulfide ore and other ores. The laboratory simulation measurement ratio is 1:200. Background technique [0002] In the electrical survey, the resistivity method is to measure the potential difference ΔU and the current I to convert the apparent resistivity ρs; or to measure the components of the alternating electric field E and alternating magnetic field H by the frequency sounding method to convert the apparent resistivity ρs ; The excitation and activation method measures the primary field potenti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/00
Inventor 王院生李志华郑彦鹏李波路桂英
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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