Coiled tubing pipe-to-pipe butt joint process and raw material thickening equipment thereof

A technology for oil pipe joints and oil pipes, which is applied in the direction of metal processing equipment, etc., can solve problems such as oxidation burning, welding collapse, and affecting the performance of pipe butt joints, etc., to achieve improved hammering strength, uniform deformation, and uniform hammering force Effect

Pending Publication Date: 2020-04-07
XINDA KECHUANG TANGSHAN PETROLEUM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology allows for better joining together two metallic pipes without damaging them when they come into contact at their edges. Instead, it improves resistance against bending stress while maintaining its shape integrity. Additionally, there is an improved method called liquid steel reinforcement (LF) processing where hot plasma gunging techniques were developed instead of traditional methods like flame cutting. These improvements help increase productivity and lower costs compared to previous processes such as weld seamless connections.

Problems solved by technology

The technical problem addressed in this patented method relates to improving the quality control during joining or sealing long lengths of coil tubings used for drilling operations without causing damage caused by these processes.

Method used

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  • Coiled tubing pipe-to-pipe butt joint process and raw material thickening equipment thereof
  • Coiled tubing pipe-to-pipe butt joint process and raw material thickening equipment thereof
  • Coiled tubing pipe-to-pipe butt joint process and raw material thickening equipment thereof

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Embodiment Construction

[0030] The core of the present invention is to provide a coiled tubing butt jointing process and its raw material thickening equipment, which can effectively reduce edge burning and collapse during the welding process, and improve the welding quality of the pipe butt joint.

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] With reference to the accompanying drawings, figure 1 It is a schematic diagram of the pipe butt joint process flow of the present invention; figure 2 It is a schematic

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Abstract

The invention discloses a coiled tubing pipe-to-pipe butt joint process, and belongs to the technical field of coiled tubing construction. The process comprises the following steps: 1, cleaning the joint end parts of butt joint coiled tubing to remove dirt, impurities and burrs; step 2, performing wall thickness increasing treatment on the joint end parts of the butt joint coiled tubing by using an end surface hammering method; 3, machining a welding groove in the joint end parts of the hammered coiled tubing; 4, aligning the joint end parts of the two sections of butted coiled tubing, and carrying out circumferential argon arc welding to make butt joint firm and reliable; and 5, clearing welded junction parts to remove welding burrs and weld beading. Edge burning and collapsing in the welding process can be effectively reduced, and the welding quality of pipe-to-pipe butt joint is improved. The invention further discloses pipe-to-pipe butt joint raw material thickening equipment for conducting hammering thickening on the joint ends of the coiled tubing in the process.

Description

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Claims

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Application Information

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Owner XINDA KECHUANG TANGSHAN PETROLEUM EQUIP CO LTD
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