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Rock sample detection and data acquisition system and method and application thereof

A data acquisition system and rock sample technology, applied in the field of geological exploration rock experiments, can solve the problems of not meeting the needs of coalbed methane rock geophysics research and being impossible to achieve, and improve the accuracy and efficiency of experimental testing, and the results are accurate and reliable. letter, ensuring consistent results

Inactive Publication Date: 2011-05-11
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

Therefore, at present, the test experiment of coal geophysical properties for adsorbed gas has not been realized, which cannot meet the needs of coalbed methane rock geophysics research.

Method used

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  • Rock sample detection and data acquisition system and method and application thereof
  • Rock sample detection and data acquisition system and method and application thereof
  • Rock sample detection and data acquisition system and method and application thereof

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Embodiment Construction

[0035] figure 1 It is a working principle block diagram of the present invention.

[0036] The technical solution adopted by the present invention to solve the technical problem is: the three-axis pressure chamber is connected with the gas supply and metering control device, the adsorption experiment is carried out on the samples in the pressure chamber and the gas adsorption amount is accurately measured, and at the same time, the cap of the high pressure chamber adopts a concave The ultrasonic transducer is installed in the structure and combined with the ultrasonic transmitting / receiving device to realize the ultrasonic velocity test of the adsorbed gas (such as methane, nitrogen) samples. The whole process is controlled by a computer, and the time for elastic parameter test data collection is set and automatically Continuous recording of test results.

[0037] A rock sample detection and data acquisition system consists of four parts: fluid supply and metering control mod...

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Abstract

The invention relates to a rock sample detection and data acquisition system. The system can realize elastic parameter test of a rock sample in the state of gas adsorption; in the system, a three-shaft pressure cabin is connected with a gas supply and metering control device for absorbing samples in the cabin and accurately metering absorption quantity, moreover, an ultrasonic transducer is installed on a cap of the (high) pressure cabin and integrated with an ultrasonic wave transmitting / receiving device so that the test of elastic parameters of methane absorption on coal can be realized truly. The system can automatically and continuously test in the processes of gas absorption and gas enrichment, thereby ensuring a consistent test environment, acquiring an absorption quantity and elastic parameter relation curve, improving test accuracy and efficiency and saving test time and cost. The rock sample detection and data acquisition system integrates methane enrichment mechanism simulation and rock physical property test, can be applied to seismic prospecting method research on coalbed methane and shale gas, mine advanced detection, coal mine safety research and the like.

Description

technical field [0001] The invention belongs to the category of geological exploration rock experiments, and relates to a coal rock elasticity test system under the action of triaxial stress and gas adsorption state, which can simulate and study the propagation characteristics of seismic waves in the coal rock / layer in the formation temperature, pressure and formation fluid state. Background technique [0002] The geophysical properties test of high-temperature and high-pressure rocks is to study the various physical properties of rocks under special high-temperature and high-pressure conditions, that is, to use certain specifications of rock samples to simulate the environment of rocks in the formation, with different temperature and pressure and rock pore filling. Fluids, understanding and studying the physical properties of rock geophysics, can also study the mechanism of earthquakes and related phenomena, especially the fluctuation phenomenon, which is an important part o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/00G01V1/133G01V1/18G01N3/08
Inventor 马中高张国保周枫赵群傅星菊邵志东
Owner CHINA PETROLEUM & CHEM CORP
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