Protective jacket end shaper and protective jacket end shaping process

Abstract

The invention belongs to the field of machining, and particularly relates to a protective jacket end shaper and a protective jacket end shaping process. The protective jacket end shaper comprises a machine frame, wherein one end of the machine frame is provided with a shaping mechanism which can shape the end of a protective jacket in a rolling mode, and a bracket is arranged on the upper portion of the machine frame and used for storing the protective jacket. According to the protective jacket end shaper, the hydraulic driving, hydraulic pressing and hydraulic ejecting technologies are utilized, so that the end of the protective jacket is shaped in a plain end mode in the pressing and rotating processes of upper and lower rollers. Compared with the prior art, the protective jacket end shaper can completely overcome the technical defects of hoop clamping and interference fit caused by the adoption of the traditional technology of tensioning through an outer hoop, achieve one-time shaping, lower labor intensity, and improve shaping efficiency; and the protective jacket end shaping mechanism is simple in structure and easy to operate.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a protective cover end shaping machine and a protective cover end shaping process. Background technique [0002] In the field of oil and natural gas exploitation, in order to prevent formation sand from being brought into the wellbore or ground equipment along with oil, gas, and water, resulting in production reduction and shutdown of oil wells, accelerated wear of downhole pipe piles and ground equipment, etc., sand production oil and gas wells need Use sand control screens that can effectively retain sand and filter formation fluids. At present, sand control screens used in oil and gas wells have various structures, and these sand control screens are either expensive, or are easily damaged and have short sand control time, or have unsatisfactory sand control effects. The quality and sand control effect of sand control screen directly affect the production and l...

AI Technical Summary

Problems solved by technology

[0004] The traditional method of shaping the end of the protective sleeve is realized by the process of inner expansion core and outer hoop. This process needs to change the position twice during the shaping process, which cannot be completed at one time; and after the inner expansion core is tightened, the protective sleeve and outer hoop It often forms an interference fit, and when withdrawing from the outer hoop, it needs to be smashed out manually with a sledgehammer, which is not only laborious and time-consuming, but also very dangerous, and the work efficiency is not high

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