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Experimental method and experimental device for determinating volcanic gas-water relative permeability

A technology of relative permeability and experimental method is applied in the field of experiments and experimental devices for measuring the relative permeability of volcanic rock gas and water, which can solve the problems of inaccurate measurement of the relative permeability of volcanic rock gas and water, and achieve simple and convenient use. Effect

Inactive Publication Date: 2015-01-28
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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Problems solved by technology

[0004] In view of the above problems, the present invention proposes an experimental method for measuring the relative permeability of volcanic rock gas and water, which solves the problem of inaccurate measurement of relative permeability of volcanic rock gas and water in the prior art

Method used

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  • Experimental method and experimental device for determinating volcanic gas-water relative permeability
  • Experimental method and experimental device for determinating volcanic gas-water relative permeability
  • Experimental method and experimental device for determinating volcanic gas-water relative permeability

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Embodiment

[0047] Refer to attached figure 1 , the structure of the experimental device of the present invention is that the confining pressure hand pump 7 is connected to the rock core holder 6, and a pressure gauge 8 and a confining pressure two-way valve 9 are arranged between the hand pump 7 and the rock core holder 6; One side of the gas humidifier 3, the other side of the gas humidifier 3 is connected to the core holder 6, a pressure regulating valve 2 is provided between the gas cylinder 1 and the gas humidifier 3, and the gas humidifier 3 and the core holder 6 A pressure gauge 4 and a two-way valve 5 are arranged between them; the core holder 6 is connected to the input end of the gas-liquid separator 11 through a microcapillary tube 10 with a scale, and the output end of the gas-liquid separator 11 is connected to a micro gas flowmeter 12 and A measuring cylinder 13, the measuring cylinder 13 is connected with a high-precision electronic balance 14.

[0048] When in use, the ha...

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Abstract

The invention relates to an experimental method and an experimental device for determinating volcanic gas-water relative permeability. Through experimental steps of preparing a volcanic core, measuring permeability and porosity of a rock sample gas, exerting a confining pressure and performing rock sample gas water displacement, a relative permeability curve when gas saturation increases and water saturation decreases in the volcanic core is determinated by a non-steady-state method.

Description

technical field [0001] The invention relates to an experimental method for measuring permeability, in particular to an experimental method and an experimental device for measuring the relative permeability of volcanic rock gas and water. Background technique [0002] Volcanic rock reservoirs are ultra-low permeability gas reservoirs, and their storage space is dominated by pores. However, compared with conventional ultra-low permeability reservoirs, volcanic rocks usually have more pores and fractures, so their volcanic rock gas reservoirs have a higher commercial mining value. In recent years, my country has successively developed many volcanic gas reservoirs and achieved certain economic benefits. [0003] The relative permeability curve of gas and liquid is an important reference in the dynamic analysis and numerical simulation of gas reservoir development. The curve is usually obtained by testing the real core of the gas reservoir in the laboratory with the stability me...

Claims

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Application Information

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IPC IPC(8): G01N15/08
Inventor 潘一徐子健杨双春
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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