A parallel core holder

Abstract

The invention relates to a parallel core holder. The parallel core holder comprises a parallel barrel, an inner gear ring, a base and a rubber cylinder. The parallel core holder is characterized in that the parallel barrel is connected with a front end cover and a rear end cover by virtue of screws, a front sealing piece and a rear sealing piece are respectively arranged in a front sealing slot and a rear sealing slot of the parallel barrel, plugs are connected with the front end cover and the rear end cover by virtue of screws respectively, the rubber cylinder is arranged inside the parallelbarrel, the small end of a square valve element is connected with a fine tuning nut by virtue of a screw thread, the big end of the square valve element is in fit with a square valve pocket, the square valve pocket is arranged in a square through hole in the middle part of the parallel barrel, the parallel barrel is connected with the big end of a connecting rod and a connection block by virtue ofscrews, the connection block is welded at the periphery of the inner gear ring, the inner gear ring is in fit with a planetary gear and a sun gear to form a planetary gear mechanism, the sun gear, aY-shaped baffle and the small end of t connecting rod are respectively in fit with the long end of a rotary rod, a flat key is placed in a key slot of the long end of the rotary rod, and the rotary rod is in fit with a long support and a short support on the base. The parallel core holder provided by the invention has the advantages that an interlayer and a heterosphere stratum can be efficientlyand quickly simulated and related parameters are measured.

Description

technical field [0001] The invention relates to a physical simulation test device for rock core reservoirs, in particular to a parallel rock core holder. Background technique [0002] The core holder is a basic component widely used in development tests, mainly for geological exploration of oil and natural gas and related development research. By taking cores from the target formation, the core-related penetration is completed in the core holder. Ratio, porosity and other related tests of formation damage, so as to obtain the physical parameters of the core and fluid, and further reflect the relevant characteristics of the formation. The purpose of the core holder is relatively single, mainly to hold and stabilize the core, control various simulated formation parameters and form a closed space, complete various simulated environment tests and obtain test parameters. [0003] With the continuous development of oil at home and abroad, the conflicts between reservoir layers ar...

AI Technical Summary

Problems solved by technology

Using conventional single core clamping to simulate water injection, damage and other related tests of reservoir formations cannot well reflect the flow relationship of the medium between layers, the simulability is poor, and the measurement results have large deviations

The implementation method of the parallel core and heterogeneous core holders that are commonly used now is relatively simple. It is only to superimpose different physical and lithological properties into the holder, and the relevant influencing parameters cannot be adjusted, which is inconvenient to use.

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