Fine control method of physical properties of single-fracture seepage medium

Abstract

The invention discloses a single-fissure flow medium physical property fine control method. By means of the single-fissure flow medium physical property fine control method, adhesives and propping agents are combined to achieve fine bonding of rocks and accurate setting control of fissures, and aperture of manual fissures and internal implication permeability of the fissures can be quantitatively controlled by controlling grain size of the propping agents of the fissures and amount of the fissure adhesives in a fine and quantitative mode. By means of the single-fissure flow medium physical property fine control method, the fissures are created in a rock fine bonding mode, and the adhesives and the propping agents both have the accurate fissure setting effect. By adopting a natural rock sample selection method, matrix permeability and matrix porosity can be quantitatively controlled. Regular permeability of the fissures, fissure porosity, fissure-matrix system permeability and fissure-matrix system porosity can be further quantitatively controlled by combining the two methods. The single-fissure flow medium physical property fine control method solves the problem that physical properties like porosity and permeability of single fissures and matrix racks cannot be controlled in a fine and quantitative mode and provides technology support for all research fields relative to fissure medium flow.

Description

technical field [0001] The invention belongs to a new type of physical experiment method for the study of seepage in fractured media, in particular to a method for finely controlling the physical properties of single-fracture seepage media applicable to all research fields related to fracture seepage phenomena. Background technique [0002] Fractured geological reservoirs commonly exist all over the world, and are hot issues in the following research fields: (1) water source development; (2) underground pollutant migration; (3) oil reservoir development; (4) underground thermal reservoir development and thermal Storage; (5) deep earth activities, such as earthquakes, seabed hydrothermal fluids, etc. [0003] Unlike single pore media, fractured geological reservoirs consist of matrix blocks with a general pore structure and fracture systems that separate the blocks, and are characterized by dual media. The basic characteristic of seepage in fractured porous media is that the...

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Problems solved by technology

[0006] The technical problem solved by the present invention is to provide a fine control method for the physical properties of a single fracture seepage medium to solve the problem that the physical properties of a single fracture and matrix rock block porosity and permeability are difficult to finely and quantitatively control, and to improve or overcome one of the existing technical problems. one or more defects

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