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Method for removing rust on outer wall of petroleum drill rod

A technology for oil drill pipes and drill pipes, applied in cleaning methods and appliances, chemical instruments and methods, cleaning methods using liquids, etc., can solve problems such as low efficiency and inconvenient operation, and achieve simple and convenient operation, convenient operation, and adjustment The effect of the height of the guide rail is easy

Inactive Publication Date: 2016-05-25
SICHUAN XILIN OIL SUPPLIES EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for removing rust on the outer wall of oil drill pipes, which solves the problems of low efficiency and inconvenient operation caused by manual treatment of dirt and rust on the outer wall of drill pipes

Method used

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  • Method for removing rust on outer wall of petroleum drill rod
  • Method for removing rust on outer wall of petroleum drill rod
  • Method for removing rust on outer wall of petroleum drill rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 , figure 2 , image 3 Shown, a kind of oil drill pipe outer wall derusting method comprises the following steps:

[0038] 1) Use a cleaning device to scrape off the dirt on the outer wall of the drill pipe. The cleaning device includes two cooperating bases 1, and the opposite sides of the two bases 1 are provided with through grooves in the vertical direction. The two side walls are provided with threaded through holes I11, and the two ends of the guide rail 2 are provided with flanges 21, and the flanges 21 are provided with threaded through holes II matched with the threaded through holes I11, and the guide rail 2 is connected with the threaded through holes I11 through bolts I12. , The threaded through hole II is fixed between the two bases 1, a slider 3 is set in the guide rail 2, the slider 3 is driven by a motor to move in the guide rail 2, one end of the connecting rod 4 is fixedly connected with the slider 3, and the other One end is connec...

Embodiment 2

[0043] Such as figure 1 , figure 2 , image 3 As shown, this embodiment is based on Embodiment 1, the fixed ring 5 is made of hard aluminum alloy; the fixed ring 5 is an arc-shaped structure; Groove, the two ends of cleaning plate 6 are clamped in 2 draw-in grooves.

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Abstract

The invention discloses a method for removing rust on the outer wall of a petroleum drill rod. The method comprises the following steps: 1, scraping away dirt on the outer wall of the drill rod with a cleaning device; 2, spraying a diluted hydrochloric acid solution to the outer wall of the drill rod with the dirt scraped away; 3, conducting washing on the outer wall of the drill rod which is treated through the diluted hydrochloric acid solution; 4, wiping the outer wall of the drill rod with cleaning cloth. By means of the rust removal method, manual operation is not needed after the dirt-scraping step is completed, friction between a cleaning plate and the outer wall of the drill rod is achieved under motor drive, and furthermore the dirt on the outer wall of the drill rod can be removed, so that the dirt and the rust on the outer wall of the drill rod are loosened, subsequent pickling and washing are facilitated, operation is simple and convenient, efficiency of cleaning the outer wall of the drill rod is greatly improved, the rust and other alkaline dirt are dissolved through the diluted hydrochloric acid solution, finally, the dirt is removed through washing, operation is convenient, and the dirt is cleared away thoroughly.

Description

technical field [0001] The invention relates to the field of auxiliary tools for petroleum machinery, in particular to a method for removing rust on the outer wall of petroleum drill pipes. Background technique [0002] In the process of oil extraction, the drill pipe is an indispensable tool. The drill pipe can be used repeatedly. In order to improve the service life of the drill pipe, the drill pipe must be maintained and cleaned after each use. [0003] The surface of the oil drill pipe will form a dirt layer and rust layer after use. In equipment maintenance, the dirt layer and rust layer on the surface of the oil drill pipe need to be removed. At present, the dirt layer and rust layer are generally removed manually by hand-held grinders. However, manual removal has a long cycle, high operation intensity and extremely low efficiency. Furthermore, due to the existence of petroleum substances and rust substances on the surface of the used oil drill pipe, during grinding, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B1/00B08B3/08B08B3/02
CPCB08B3/02B08B3/08B08B1/165
Inventor 贺昶明
Owner SICHUAN XILIN OIL SUPPLIES EQUIP
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