Coal/shale adsorption capacity measuring device
A technology for measuring device and adsorption capacity, which is applied in the direction of measuring device, permeability/surface area analysis, suspension and porous material analysis, etc. It can solve the problem that the measured temperature and pressure do not conform to the temperature and pressure environment, and cannot reflect the adsorption of coal rock/shale ability, inability to obtain more accurate data and other issues, to achieve the effect of balanced temperature conduction and distribution, good temperature conduction and distribution
Active Publication Date: 2012-07-25
PETROCHINA CO LTD
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Problems solved by technology
The gravimetric method was widely used in the early days, but it could not realize the determination of adsorption capacity at higher pressure points
Chromatography can be used to determine the adsorption of multi-component gases, but more accurate data cannot b...
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[0020] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.
[0021] Such as figure 1 As shown, the present invention provides a coal / shale adsorption measurement device 100, the adsorption measurement device 100 includes an adsorption cylinder 1 and a reference cylinder 2 with the same diameter, the opening of the adsorption cylinder 1 is upward, and the opening of the reference cylinder 2 is towards Set up below, the cylinder bottoms of the adsorption cylinder 1 and the reference cylinder 2 are respectively fixed on the top surface and the bottom surface of a cylindrical steel block 3, the diameter of the cylindrical steel block 3 is the same as that of the adsorption cylinder 1 and the reference cylinder 2, The adsorption cylinder 1 and the reference cylinder 2 are connected by a connect...
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Abstract
The invention relates to a coal/shale adsorption capacity measuring device, which comprises an adsorption cylinder and a reference cylinder, wherein cylinder bottoms of the two cylinders are respectively fixed on the top surface and the bottom surface of a cylindrical steel block; the adsorption cylinder and the reference cylinder are communicated through a communicating pipe which penetrates through the two cylinder bottoms and the cylindrical steel block; a first control valve is arranged on the communicating pipe; outer side walls of the adsorption cylinder, the reference cylinder and the cylindrical steel block are provided with heating jackets, and heat insulation jackets are arranged at outer sides of the heating jackets; all the combined members, namely the adsorption cylinder, the reference cylinder, the cylindrical steel block, the heating jackets and the heat insulation jackets, are placed in a vacuum heat insulation tank; a sample hanging basket which is filled with a test sample is arranged in the adsorption cylinder; the adsorption cylinder is provided with an exhaust pipe and a first pressure sensor; and the reference cylinder is provided with an air inlet pipe and a second pressure sensor, wherein the air inlet pipe is connected to one end of a gas boosting pump, and the other end of the gas boosting pump is communicated with experiment gas and helium through a second control valve and a third control valve which are communicated in parallel. The coal/shale adsorption capacity measuring device can be used for simulating the process of adsorbing natural gas by coal/shale under actual geological conditions and evaluating the adsorption capacity of the coal/shale.
Description
technical field [0001] The present invention relates to an experimental equipment for the simulation of the adsorption capacity and the determination of the adsorption capacity of coal / shale under actual geological conditions in laboratories in the fields of petroleum, geology, and mining, and especially relates to an adjustable high-temperature and high-pressure coal / shale isothermal Adsorption capacity measurement device. Background technique [0002] In conventional gas reservoirs, natural gas mainly occurs in the form of free in sandstone, and mainly in the form of adsorption and free in coal / shale. Therefore, the adsorption capacity of coal / shale is determined to be coalbed methane and shale Rock gas resource evaluation and favorable area prediction provide important parameters. At present, the methods for determining the methane adsorption capacity of coal rock / shale can be divided into gravimetric method, volumetric method and chromatographic method. The gravimetric...
Claims
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Login to view more IPC IPC(8): G01N7/04G01N15/08
Inventor 马行陟柳少波姜林
Owner PETROCHINA CO LTD
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