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Simple rock core electrical property measuring device and measuring method

A measuring device and measuring device technology, applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of image, fragmentation, failure to be widely implemented, etc., and achieve the effect of accurate data and easy operation

Active Publication Date: 2017-11-28
黑龙江省地球物理地球化学勘查院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the determination of the electrical parameters of the rock core is also based on the specimen frame method and the dough (mud) group method in the determination of the specimen. The determination of the rock core is subject to various difficulties except the inconvenience caused by the above-mentioned cutting and soaking. Constraints of factors: First, the location of the drilling project is the location where the ore is found or the mineralization is better. The core obtained by the drilling project will be required to split the core in time for testing. Large, even broken into small pieces after splitting, unable to meet the requirements for the determination of electrical specimens
It is also inappropriate to measure the lithology before splitting the core, because the core needs to be cut before the determination, and some cores will be damaged during the cutting process, (the parts with strong alteration and mineralization, that is, the parts that are favorable for ore prospecting, are particularly easy to Broken and damaged) will cause an image of the later sampling and testing work. In severe cases, the sampling and testing may miss the ore body
[0006] It is more accurate and true to use rock cores to measure electrical parameters than samples collected from the surface. However, due to various factors, it has not been widely implemented. At present, most of the electrical parameters of rock cores are measured after core sampling. Most of the specimens are unmineralized and altered parts without core sampling, all of which are surrounding rocks, and the real ore bodies, mineralized bodies, and altered rock bodies have not been measured

Method used

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  • Simple rock core electrical property measuring device and measuring method
  • Simple rock core electrical property measuring device and measuring method
  • Simple rock core electrical property measuring device and measuring method

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specific Embodiment approach 1

[0039] Combine below figure 1 -10 illustrates the present embodiment, the present invention relates to the field of rock core electrical property measurement, more specifically a kind of easy rock core electrical property measurement device and measurement method, comprise measuring frame 1, movable support frame 2, non-polarized electrode The measuring device 3 and the scale 4 are characterized in that: the measuring frame 1 includes a base 1-1, a convex groove 1-2, a top plate 1-3, a scale placement groove 1-4 and a support rod 1-5, and the base 1 The upper end of -1 is provided with a convex groove 1-2, and the two ends of the convex groove 1-2 are provided with bolts. The top plate 1-3 is welded and connected by four support rods 1-5, and a ruler placement groove 1-4 is arranged in the top plate 1-3;

[0040] The lower end of the movable support frame 2 is an I-shaped structure, the upper end of the movable support frame 2 is provided with a circular arc surface, and the ...

specific Embodiment approach 2

[0044] Combine below figure 1 -10 Describes this embodiment, this embodiment further describes Embodiment 1, and the above-mentioned support rods 1-5 are hollow structures.

[0045] The materials of the insulating pad 2-1 and the rubber fixing ring 3-4 are all rubber, so as to ensure that the rock core will not be in contact with metal materials and affect the electrical properties.

[0046] The lead wire of the non-polarized electrode measuring device 3 is made of copper, and an insulating skin is provided outside the lead wire.

[0047] The movable support frame 2 and the convex groove 1-2 are clearance fits, so that the movable support frame 2 can move in the convex groove 1-2, and the scale 4 and the scale placement groove 1-4 are clearance fits to ensure that the scale 4 Installation and disassembly can be realized in the scale placement groove 1-4.

[0048] The material of the scale 4 is plexiglass.

specific Embodiment approach 3

[0049] Combine below figure 1 -10 illustrates the present embodiment, a kind of simple and easy rock core electrical property measuring method of the present invention, concrete steps are as follows:

[0050] a. After the core is taken out by drilling, the core is placed on the movable support frame 2, and the measurement is performed after the core is taken out by drilling without soaking, so as to avoid damaging the core and changing the lithology of the core due to soaking, and the freshly taken out core The parameters are consistent with the underground environment, and the real electrical parameters of the underground geological body can be obtained by direct measurement, and the measurement data is more accurate and representative;

[0051] b. Adjust the spacing of the fixed measuring parts 3-1 of the four non-polarized electrode measuring devices 3, and fix the four rubber fixing rings 3-4 on the rock core. Using this method to measure electrical parameters does not nee...

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PUM

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Abstract

The invention relates to the field of rock core electric property measurement and in particular relates to a simple rock core electrical property measuring device and a measuring method. The device comprises a measuring rack, two movable supporting racks, non-polarized electrode measuring devices and a scaleplate. The device is characterized in that the measuring rack comprises a base, concave grooves, a top plate, a scaleplate placing groove and a supporting rod; insulating gaskets are adhered and connected to the upper sides of the movable supporting racks; each of the non-polarized electrode measuring devices comprises a fixed measuring part, a fastener, a connecting rod, a rubber fixing ring and a measuring electrode; a straight slot is formed in the scaleplate; the two movable supporting racks are placed in the concave grooves of the measuring rack; the four non-polarized electrode measuring devices are separately connected to the scale plate through the fixed measuring parts and the fasteners, and the scaleplate is placed in the scaleplate placing groove of the measuring rack. The device provided by the invention has the beneficial effects that the device can measure the rock core electric property parameters during drilling engineering without damaging the rock core, losing the lithology and affecting sampling, and the device is simple and convenient to operate and accurate in data.

Description

technical field [0001] The invention relates to the field of rock core electrical property measurement, in particular to a simple rock core electrical property test device and a test method. Background technique [0002] The main methods used in the determination of electrical parameters in geophysical exploration include outcrop measurement and specimen measurement. Outcrop measurement is divided into outcrop small quadrupole method and small pole distance sounding method. Specimen measurement is further divided into wax seal method, specimen frame method, Face (mud) group method. [0003] Outcrop measurement is because it directly measures the outcrop of rock (ore) on the surface in the real environment, and the measurement parameters are relatively accurate, which can be directly regarded as the real electrical parameters of rock (ore) The outcrop diameter of a single lithology rock (ore) is more than double the AB pole distance used, and the downward extension should be...

Claims

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Application Information

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IPC IPC(8): G01N27/04
CPCG01N27/041
Inventor 郑军滕民强杨春成贾思愉孙萍闫浩韩冬梅
Owner 黑龙江省地球物理地球化学勘查院