A multifunctional core holder

Abstract

The invention relates to a multifunctional rock core holder, which comprises cylinder bodies, end covers, a short rubber cylinder, a long rubber cylinder and a pedestal. The multifunctional rock coreholder is characterized in that: the cylinder bodies are in threaded connection with the end covers, and the end covers are in threaded connection with the plugs, two cylinder bodies are in threaded connection with horizontal connecting blocks at the ends of each other to compose a parallel connection body, the parallel connection body is internally equipped with the short rubber cylinder, the topis equipped with hollow plugs, and the hollow plugs are interconnected through pipelines. Two cylinder bodies are connected to the horizontal connecting blocks and vertical connecting blocks at the ends of each other simultaneously to compose a concatemer, which is internally equipped with the long rubber cylinder, and the cylinder bodies are connected by support plates through bolts, and plug screws are mounted at the tops of the cylinder bodies. Seal rings are disposed between the cylinder bodies and the end covers and the support plates, and the cylinder bodies cooperate with arc-shaped supports, the arc-shaped supports are connected to the upper ends of support rods through octagonal pins, and the lower ends of the support rods are connected to the pedestal through bolts. According tothe invention, the rock core parallel connection mode can simulate complex stratum conditions, at the same time connection of the cylinders in series or individual use can achieve clamping measurement of a combined long rock core or short rock core respectively, and the functions are diverse.

Description

technical field [0001] The invention relates to a physical simulation test device for rock core reservoirs, in particular to a multifunctional 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 la...

AI Technical Summary

Problems solved by technology

Using conventional single core clamping to simulate the water injection and damage of the reservoir formation can not reflect the flow relationship of the medium between layers well, the simulation is poor, and the measurement results have large deviations, which requires the development of interlayers and interlayers. Targeted core holders for heterogeneous formation modeling

At the same time, conventional core holders cannot take into account the simulation tests of parallel cores and combined long cores well, and often need to purchase multiple targeted core holders to carry out work, which will increase the investment cost of the device. Some experiments When the device is idle

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