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Mud-scraping ring and scraper for drilling-rod external wall

A technology of scraper ring and drill pipe, which is applied in earth-moving drilling, cleaning equipment, wellbore/well components, etc., can solve the problems of dirty and slippery work surface, danger, and increased labor intensity of workers.

Inactive Publication Date: 2007-01-17
马志
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when pulling out the drill pipe, the drill pipe column lifted up from the downhole will take the drilling fluid out to the drill floor surface, making the working place dirty, slippery and very dangerous, increasing the labor intensity of the workers

Method used

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  • Mud-scraping ring and scraper for drilling-rod external wall
  • Mud-scraping ring and scraper for drilling-rod external wall
  • Mud-scraping ring and scraper for drilling-rod external wall

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Embodiment Construction

[0010] Such as figure 1 As shown in Figure 2, the mud scraping ring for the outer wall of the drill pipe of the present invention includes an elastic ring body 6, the inner surface of the ring body is adapted to the outer wall of the drill pipe body, and the circumference of the outer surface of the ring body Last one is shaped on support 61.

[0011] The above-mentioned elastic ring body 6 should be made of elastic, wear-resistant, and high elongation at break materials, such as rubber, polyurethane, etc., preferably nitrile rubber. Its cross-section can be circular, elliptical, etc.; it can also be made hollow in the middle, that is, a hollow ring (such as image 3 As shown), it is convenient for the drill pipe collar 8 to have a compression allowance and be flexible when passing through.

[0012] The above-mentioned support is integrally made on the outer circumference of the elastic ring body, and its material can be the same as that of the ring body, or it can be differ...

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Abstract

This invention is mud scraping ring and mud scraping device for drill bar outer wall. The said mud -scraping ring includes an elastic ring body, which inner surface matches with drill bar outer wall. The outer surface circumference of the said ring body is set with support. The mud-scraping device includes mud scraping ring and a casing. The inner wall of the said casing is radial arranged with clamping device, on which the support of mud scraping ring outer circumference is fixed. This invention is used to scrape the mud on the outer wall of drill bar in the process of well drilling.

Description

technical field [0001] The invention relates to a mud scraping ring for the outer wall of a drill pipe and a mud scraping device including the mud scraping ring. Background technique [0002] In the process of oil and natural gas drilling, in order to ensure the smooth drilling operation, drilling fluid must be used during drilling. Therefore, when pulling out the drill pipe, the drill pipe column lifted up from the downhole will take the drilling fluid out to the drill floor surface, making the work site dirty and slippery and very dangerous, increasing the labor intensity of the workers. Contents of the invention [0003] In order to overcome the above defects, the present invention provides a mud scraping ring for the outer wall of a drill pipe and a mud scraping device including the mud scraping ring. [0004] In order to achieve the above object, the mud scraping ring for the outer wall of the drill pipe of the present invention includes an elastic ring body, the inn...

Claims

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Application Information

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IPC IPC(8): E21B37/02
Inventor 马志
Owner 马志
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