Visual nesting device for flow conductivity test experimental sample and experiment method

Abstract

The invention provides a visual nesting device for a flow conductivity test experimental sample and an experiment method. The visual nesting device comprises a main body frame and transparent boards,wherein a through groove of which the shape is consistent with the shape of a diversion trench is formed in the middle of the main body frame; two sides of the lower part of the main body frame are provided with grooves with convex edges; the transparent boards are fixedly arranged at two ends of the main body frame; arc-shaped structures of which the shapes are consistent with the shape of the diversion trench are formed inside the transparent boards, and the transparent boards are coincided with the through groove of the main body frame to form an accommodating groove; the lower parts of thetransparent boards are provided with groove structures of which the peripheries protrude while the insides sink; the groove structures are coincided with the groove plane of the main body frame to form locating grooves. By adopting the visual nesting device for the flow conductivity test experimental sample, an experimental rock plate and a support agent which are tightly fixed in a diversion chamber can be completely taken out after an experiment, the change forms of the rock plate and the support agent can be observed completely and clearly after the flow conductivity test experiment, the fracturing effect can be evaluated effectively, and fracturing design and construction can be performed in a targeted way.

Description

technical field [0001] The invention belongs to the field of oil and gas field development, and in particular relates to the state observation of a slab and a supporting agent after an experimental test of the conductivity of a fracturing fracture. Background technique [0002] The conductivity of fracturing fractures is a key index for evaluating the effect of hydraulic fracturing fractures. The experimental technology of proppant conductivity test is the key technique for simulating and evaluating the effect of proppant filling fractures. After the experiment, the analysis of the morphological changes of the experimental slab wall and proppant can provide intuitive data for the interpretation of the fracture conductivity and the evaluation of the fracturing effect. Therefore, more and more attention has been paid to the observation and evaluation of fracture wall morphology, proppant breakage, proppant embedding, and proppant laying concentration changes after the conduct...

AI Technical Summary

Problems solved by technology

[0004] To sum up, although more and more attention has been paid to the observation and evaluation of the fracture wall shape, proppant breakage, proppant embedding, and proppant laying concentration changes after the conductivity test, most of them are indirect methods, and no visual methods have been used. Methods Take out the rock slab and proppant after the experiment to observe its shape change

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