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A bottom oil cylinder for high temperature and high pressure environment simulation cabin

An environment simulation, high temperature and high pressure technology, applied in the field of hydraulic cylinders, can solve the problems of oil leakage, low assembly and disassembly efficiency, cylinder bottom damage, etc., to achieve the effect of convenient sealing connection, high assembly and disassembly efficiency, and avoid damage to oil leakage

Active Publication Date: 2022-06-21
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problems in the prior art, the present invention provides a bottom oil cylinder used in a high-temperature and high-pressure environment simulation cabin, which solves the problem of cylinder bottom damage and leakage caused by the direct use of most oil cylinders in the high-temperature and high-pressure environment simulation cabin in the prior art. Oil, assembly and disassembly efficiency is low, can not meet the problem of actual use

Method used

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  • A bottom oil cylinder for high temperature and high pressure environment simulation cabin
  • A bottom oil cylinder for high temperature and high pressure environment simulation cabin

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like Figures 1 to 2 As shown, this embodiment provides a bottom oil cylinder for a high temperature and high pressure environment simulation cabin, which includes a cylinder barrel 1 with openings at both ends, the bottom of the cylinder barrel 1 is sealed with a cylinder base 25, and the cylinder barrel 1 is movable inside. The seal is provided with a piston 2 , and the piston 2 divides the inner cavity of the cylinder 1 into a rodless cavity 3 and a rod cavity 4 .

[0038] The upper end surface of the piston 2 is provided with a piston rod 5, the head end of the piston rod 5 passes through the top opening of the cylinder barrel 1, and the outer wall of the piston rod 5 is movably connected with the inner wall of the cylinder barrel 1; The oil inlet hole 6 communicated with the cavity 3 and the oil outlet hole 7 communicated with the rod cavity 4 .

[0039] The lower end face of the piston 2 protrudes downward and is provided with a mounting post 8, and a first buffe...

Embodiment 2

[0050] like Figures 1 to 2 As shown, this embodiment provides a bottom oil cylinder for a high temperature and high pressure environment simulation cabin, which includes a cylinder barrel 1 with openings at both ends, the bottom of the cylinder barrel 1 is sealed with a cylinder base 25, and the cylinder barrel 1 is movable inside. The seal is provided with a piston 2, and the piston 2 divides the inner cavity of the cylinder 1 into a rodless cavity 3 and a rod cavity 4; the upper end surface of the piston 2 is provided with a piston rod 5, and the head end of the piston rod 5 passes through the top of the cylinder 1 opening, the outer wall of the piston rod 5 is connected with the inner wall of the cylinder barrel 1 in a movable and sealing manner; the outer wall of the cylinder barrel 1 is provided with an oil inlet hole 6 communicated with the rodless cavity 3 and an oil outlet hole 7 communicated with the rod cavity 4; the piston 2 A mounting post 8 protrudes downward fro...

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Abstract

The invention provides a bottom oil cylinder for a high-temperature and high-pressure environment simulation cabin of a fidelity coring device. Divided into a rodless chamber and a rod chamber; the piston is provided with a piston rod; the outer wall of the cylinder is provided with an oil inlet hole connected with the rodless chamber and an oil outlet hole connected with the rod chamber, and a reserved drill hole; the lower end surface of the piston is provided with a first buffer ring, and the upper surface of the cylinder base is provided with a second buffer ring matching the first buffer ring. It is used in the simulation cabin in the exploitation of oil and gas resources. The core in the simulation cabin has a large mass, so the load carried by the piston rod is also very large. When the piston retracts to the bottom of the cylinder, the first buffer ring contacts the second buffer ring , reduce the huge impact of the piston on the bottom of the cylinder, and avoid damage to the bottom of the cylinder and oil leakage.

Description

technical field [0001] The invention relates to the technical field of hydraulic oil cylinders, in particular to a bottom oil cylinder used in a high temperature and high pressure environment simulation cabin. Background technique [0002] In the field of oil and gas resource exploitation and deep scientific research, in order to measure the physical and mechanical parameters of the relevant rock formations, it is necessary to use a fidelity coring rate determination platform to obtain deep in-situ fidelity cores. The fidelity coring rate in the prior art The fixed platform includes a simulation cabin, and the bottom of the simulation cabin is provided with a hydraulic oil cylinder, so as to realize the tracking test of the basic physical and mechanical properties of the rock samples to be drilled in the simulation cabin to simulate the temperature and pressure environment conditions at different depths. [0003] However, when the hydraulic cylinder in the prior art is used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/14F15B15/26F15B15/22
CPCF15B15/14F15B15/1423F15B15/1428F15B15/1447F15B15/1457F15B15/261F15B15/22
Inventor 张茹谢和平张泽天高明忠陈领张志龙杨阳李佳南黄伟任利李怡航凌伟强肖坤楼晨笛
Owner SICHUAN UNIV