Fidelity coring device

Abstract

The invention provides a fidelity coring device, which comprises an outer tube and a fidelity bin. The fidelity bin is arranged in a hollow cavity of the outer tube, and the outer tube is used for rock core drilling; the fidelity bin is used for containing a rock core, and a first liquid storage device and a second liquid storage device are arranged in the outer tube and connected with the fidelity bin through pipelines; liquid A is stored in the first liquid storage device, and liquid B is arranged in the second liquid storage device; and the liquid A and the liquid B are mixed in the fidelity bin to generate a mass transfer effect, then phase change is generated, a layer of protective film is formed on the surface of the periphery of the rock core, and the rock core and the external environment are isolated through the protective film. By arranging the fidelity bin, the liquid A in the first liquid storage device and the liquid B in the second liquid storage device can be mixed on the surface of the periphery of the rock core in the fidelity bin to generate the mass transfer effect to form the protective film to isolate the external environment, and the effects of guaranteeing the quality and keeping humidity and light are achieved.

Description

technical field [0001] The invention belongs to the technical field of geological detection, and in particular relates to a fidelity coring device. Background technique [0002] At present, the "ordinary core" obtained by deep drilling at home and abroad has released components such as pressure, temperature, and pore water, which have been seriously distorted and have nothing to do with the deep in-situ environment. The use of ordinary cores for scientific research will lead to the following four problems: 1) invalid cores (due to stress release, the ground has been broken); 2) oil and gas reserves are estimated to be distorted, and the measurement is not accurate; 3) The life forms (microbes, viruses, etc.) that may exist in the deep rock formations die; 4) The physical and mechanical parameters of the rock formations at different depths cannot be measured. [0003] Among them, quality preservation, moisturizing and gloss retention are a major problem to be solved urgently...

AI Technical Summary

Problems solved by technology

The use of ordinary cores for scientific research will lead to the following four problems: 1) invalid cores (due to stress release, the ground has been broken); 2) oil and gas reserves are estimated to be distorted, and the measurement is not accurate; 3) The life forms (microorganisms, viruses, etc.) that may exist in the deep rock formations die out; 4) The physical and mechanical parameters of the rock formations at different depths cannot be measured

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