Single-fissure flow medium physical property fine control method

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 fractured media seepage, and especially refers to a fine control method for the physical properties of single fracture seepage media suitable for all research fields related to fracture seepage phenomena. Background technique [0002] Fractured geological reservoirs generally 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, seafloor hydrothermal fluids, etc. [0003] Different from using a single porous medium, fractured geological reservoirs are composed of a matrix rock block with a general pore structure and a fracture system that divides the rock block, and are characterized by dual media. The basic characteristic of seepage in fractur...

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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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