Performance test device for visual packer rubber cartridge

Abstract

The invention discloses a performance testing device for a visual rubber packer, which comprises a packer assembly, a test assembly and a display; wherein the testing assembly is connected with the packer assembly and comprises a displacement sensor and a control circuit. The displacement sensor is used for detecting the displacement of the rubber packer and generating a corresponding detection signal; and the control circuit is used for receiving the detection signals, the control circuit is connected with the display, and the display is used for displaying the specific numerical value of thesetting distance and the back-off distance of the rubber packer.

Description

technical field [0001] This application relates to but not limited to the field of exploration technology, especially a performance testing device for visual packer rubber cartridges. Background technique [0002] A packer is a downhole operation tool that seals the annulus with a sealing element rubber tube and isolates the production layer to control fluid production or injection and protect the casing. At present, compression packers have a wide range of applications, whether in drilling, exploration or completion processes. Its working principle: Under the action of axial force, the pressure sleeve at one end of the rubber tube produces axial displacement and compresses the rubber tube, making it radially expand and fit the inner wall of the casing, so as to seal the annular gap and prevent liquid leakage. Purpose. [0003] As a key downhole tool, its main component, the rubber cartridge, must undergo strict performance testing before entering the well to ensure that t...

AI Technical Summary

Problems solved by technology

However, the performance testing device of the packer in the prior art only includes a setting mechanism and a seal inspection mechanism, and does not accurately test the setting distance of the rubber sleeve, and the performance of the sealing annulus of the rubber sleeve depends on the setting force The change of the setting distance caused by it is positively correlated with the setting distance

At the same time, the single rubber cartridge performance test device does not have an anti-retraction mechanism, cannot display the influence of the retraction amount on the sealing pressure, and cannot completely simulate the sealing performance of the downhole packer and the rubber cartridge fatigue test under real conditions

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