Manufacturing method of high-pressure-resistant high-efficiency large-drift-diameter all-metal sleeve patching tool

Abstract

The invention relates to the technical field of patching pipe preparation, and particularly relates to a manufacturing method of a high-pressure-resistant high-efficiency large-drift-diameter all-metal sleeve patching tool. The manufacturing method comprises the following steps of: cutting out a raw material with a preset length, and pre-punching the raw material after pretreatment; if the inner diameter of the pre-punched raw material is lower than a preset value, reaming the raw material; gradually increasing the pressure in the raw material, and if the size of the raw material is judged not to meet the standard, adjusting the reaming diameter of the next raw material to be reamed; and when the size of the raw material meets the standard, recording the machining record, tapping the raw material, and outputting the prepared sleeve patching tool after tapping is completed. According to the manufacturing method, a central control unit controls a reaming unit to ream the inner wall of the raw material when judging that the determined inner diameter size does not meet the standard, so that the compressive strength of the prepared patching pipe is guaranteed, meanwhile, the flow of internal fluid of a sleeve using the patching pipe in the operation process is effectively increased, and the patching efficiency of the patching pipe prepared by using the method is effectively improved.

Description

technical field [0001] The invention relates to the technical field of patching pipe preparation, in particular to a method for making a high-pressure-resistant high-efficiency large-diameter all-metal casing patching tool. Background technique [0002] After the oil and water well casing is damaged, the casing rupture should be patched up by the casing patching method to prevent casing leakage. In between, after the cement slurry solidifies, the casing and the supplementary pipe are consolidated into one, so that the rupture of the casing is repaired, and the oil-water well can be produced normally. After the casing is patched, its inner diameter will be reduced, which will affect the subsequent casing when it is run into the separate mining and injection tool. The larger the diameter of the casing is reduced, the greater the impact. , the more difficult the tool is to design and process, the worse the reliability will be and the shorter the service life will be, shortenin...

AI Technical Summary

Problems solved by technology

[0004] For this reason, the present invention provides a high-pressure-resistant, high-efficiency, large-diameter all-metal bushing patching tool manufacturing method, which is used to overcome the failure of the prior art to make targeted improvements to the preparation process of the patched tube according to the actual situation. The problem of low subsidy efficiency

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