Mercury column interface automatic regulation system and rock core pore structure measuring instrument

An automatic adjustment and pore structure technology, applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of low applicability, large measurement error, etc., and achieve the effect of reducing volatilization, reducing mercury volatilization, and preventing mercury volatilization and loss

Active Publication Date: 2016-08-10
南通市飞宇石油科技开发有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of large measurement error and low applicability of the core porosity measuring device existing in the prior art, the present invention provides a mercury interface automatic adjustment system and a core pore structure measuring instrument

Method used

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  • Mercury column interface automatic regulation system and rock core pore structure measuring instrument
  • Mercury column interface automatic regulation system and rock core pore structure measuring instrument

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Embodiment 1

[0025] This specific embodiment discloses a mercury column interface automatic adjustment system, such as figure 1 , including atmospheric pressure gauge 42, acquisition card 43, PLC controller 44, lifting system 45 and mercury cup 49, atmospheric pressure gauge 42, acquisition card 43, PLC controller 44 and lifting system 45 are electrically connected in series in sequence, and mercury cup 49 is located at The upper end of the lifting system 45, the mercury cup 49 is fixedly connected with the lifting system 45 by screws. The mercury cup 49 is connected with a mercury column 54 through a flexible pipe, and the mercury column 54 can also be connected with a core holder to become a simple porosimeter. Wherein, preferably, the atmospheric pressure gauge 42 adopts a digital display atmospheric pressure gauge, which can clearly read the atmospheric pressure value, and is convenient for the operator to obtain the atmospheric pressure situation.

[0026] Specifically, such as figu...

Embodiment 2

[0031] This specific embodiment discloses a rock core pore structure tester, such as figure 2 , comprising an air pressure detection device 50, an inlet pressure device 51, a pressure metering device 52 and a rock core placement device 53, the air pressure detection device 50 and the inlet pressure device 51 are connected with the pressure metering device 52 through a pipeline, and the rock core placement device 53 is connected with the pressure metering device through a pipeline 52 connections. Preferably, a gas trap 41 is provided on the connection pipes of the air pressure detection device 50 , the pressure inlet device 51 and the pressure measurement device 52 .

[0032] Such as figure 2As shown, the air pressure detection device 50 includes a pressure sensor c7 and a pressure sensor 8, the pressure sensor c7 and the pressure sensor 8 are respectively connected with a pressure gauge c3 and a pressure gauge d4, the pressure sensor c7 and the pressure sensor 8 are arrange...

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PUM

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Abstract

The invention provides a mercury column interface automatic regulation system which comprises an atmosphere pressure meter, a collection card, a PLC, a lifting system, a mercury cup, a mercury column and a rock core holder. The atmosphere pressure meter, the collection card, the PLC and the lifting system are successively electrically connected in series. The mercury cup is arranged on the top end of the lifting system and is fixedly connected to the lifting system. The mercury column is communicated with the mercury cup. A rock core pore structure measuring instrument with the mercury column interface automatic regulation system comprises an atmosphere pressure detection apparatus, a pressurizing apparatus, a pressure meter device and a rock core arranging apparatus. The atmosphere pressure detection apparatus and the pressurizing apparatus are connected to the pressure meter device through pipelines. The rock core arranging apparatus is connected to the pressure meter device through a pipeline. The measuring instrument avoids the influence of different atmosphere pressure on detection results, has high measuring accuracy and is low in error.

Description

technical field [0001] The invention relates to the technical field of structural design of a rock core detection device, in particular to a mercury column interface automatic adjustment system and a rock core pore structure measuring instrument. Background technique [0002] Traditional core porosity measurement generally adopts water immersion, boiling and other chemical solvent immersion methods, the measurement accuracy is low and the cycle is long, especially some cores with extremely small porosity cannot be measured due to liquid tension, and three-dimensional imaging is also used. technology, but its high cost does not have wide applicability. In the prior art, there is also a core pore structure measuring instrument that uses the principle of gravity difference to measure, but because liquid mercury is used as the internal standard inside, and the height of the mercury column will change with regions, seasons, weather, etc. due to atmospheric pressure, it will affec...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/0893
Inventor 刘思齐马纯邰九龙
Owner 南通市飞宇石油科技开发有限公司
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