A manufacturing process of wellhead seal for oil extraction machine

A manufacturing process and technology of seals, applied in the field of wellhead seals manufacturing process, can solve problems such as low service life, seal manufacturing process cannot meet the production and processing requirements of high-performance seals, seals are easily damaged, and achieve manufacturing efficiency High, excellent compression and shock resistance, easy to use

Active Publication Date: 2022-07-26
淮安方圆锻造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A variety of oil production machinery is used in oil production engineering, among which the sealing of the wellhead is very important in oil production. Now the seals of the wellhead need to bear the pressure and vibration shock from the axial direction, and also bear the tear from the radial direction. The current seals are easily damaged, the service life is not high, and they need to be replaced frequently. The traditional seal manufacturing process cannot meet the production and processing requirements of high-performance seals.

Method used

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  • A manufacturing process of wellhead seal for oil extraction machine
  • A manufacturing process of wellhead seal for oil extraction machine

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] In this embodiment, a manufacturing process for a wellhead seal for an oil extraction machine is proposed, which includes the following steps:

[0039] 1): The annular sheet is punched into a skeleton with a semicircular groove-shaped cross-section by a stamping process;

[0040] 2): adopt the casting moulding process to prepare the annular intermediate body with a circular cross-section;

[0041] 3): Use a pressing mechanism to relatively press the semi-circular grooves of the two skeletons to the annular intermediate body to make the intermediate skeleton;

[0042] 4): place the intermediate skeleton in the mold, and use injection molding to make a transition piece wrapped with rubber;

[0043] 5): A ring-shaped reinforcing rib is formed around the transition piece, and a synthetic wire is wound on the annular reinforcing rib along the circumference of the transition piece;

[0044] 6): Finally, the transition piece is placed in a mold, and injection molding is used...

Embodiment 2

[0046] refer to figure 1 , the seal includes an annular rubber main body 100. The rubber main body 100 is equipped with an intermediate frame 110 for enhancing its compression and tear resistance. The rubber main body 100 is also equipped with a reinforcing assembly 120. The intermediate frame 110 and the reinforcing assembly 120 are distributed at intervals , the reinforcing component 120 is used to maintain the shape and integrity of the rubber body 100 and improve its resistance to cracking and crushing; it can improve the compression resistance and tear resistance of the seal, and can also maintain the rubber body 100 under complex conditions of use without deformation. , No cracking and no broken, improve the service life of seals.

[0047] The intermediate frame 110 is annular, and the cross-section of the intermediate frame 110 perpendicular to its annular surface is circular; the intermediate frame 110 with a circular cross-section has good compressive ability, can res...

Embodiment 3

[0053] refer to figure 2 , in this embodiment, a pressing mechanism for the manufacture of wellhead seals for oil extraction machines is proposed, including a workbench 200, the workbench 200 is fixedly installed, and an annular pressing groove 210 is installed on the workbench 200, and the pressing A lower annular plate 310 is installed in the groove 210. The lower annular supporting plate 310 has a supporting groove for supporting the skeleton 111. The skeleton 111 is opened in the supporting groove and distributed horizontally. The lower annular supporting plate 310 is connected to the lifting mechanism 300. , the lifting mechanism 300 adjusts the lower annular supporting plate 310 to enter and exit the pressing groove 210, the upper annular pressing plate 410 is installed above the lower annular supporting plate 310, the upper annular pressing plate 410 is connected to the pressing mechanism 400, and the pressing mechanism 400 is used to drive the upper annular pressing pl...

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Abstract

The invention discloses a manufacturing process for a wellhead seal for an oil extraction machine, which comprises the following steps: 1): using a stamping process to stamp an annular sheet into an A skeleton with a semi-circular groove cross-section; 2): using a casting molding process to prepare the cross-section It is a circular annular intermediate body; 3): The semicircular groove notches of the two A skeletons are relatively pressed onto the annular intermediate body by a pressing mechanism to make an intermediate skeleton; 4): The intermediate skeleton is placed in the mold, and an injection mold is used. 5): Ring rib on the periphery of the transition piece, and wrap the synthetic wire on the annular rib along the circumference of the transition piece; 6): Finally, place the transition piece in the mold, Using injection molding, the rubber wraps the transition piece of the synthetic wire wrapped in the seal. The manufacturing process proposed by the present invention is simple and simple, and can realize the manufacture of high-strength, compression-resistant, shock-resistant and tear-resistant seals, and the manufacturing efficiency is high. .

Description

technical field [0001] The invention relates to the field of seal preparation, in particular to a manufacturing process of a wellhead seal used for an oil extraction machine. Background technique [0002] Oil production engineering is a general term for various engineering and technical measures taken to oil reservoirs through production wells and injection wells according to development goals in the process of oilfield production. As a comprehensive applied discipline, it studies the theory, engineering design method and implementation technology of various engineering technical measures that can act on oil reservoirs economically and effectively to improve oil well production and crude oil recovery. [0003] A variety of oil production machinery is required in oil production engineering, among which the wellhead sealing is very important in oil production. Now the wellhead seal needs to bear the pressure and vibration from the axial direction, and also bear the tearing fro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D99/00B29C45/14E21B33/03
CPCB29D99/0053B29C45/14E21B33/03
Inventor 葛霞锋胡爱兵
Owner 淮安方圆锻造有限公司
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