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.
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[0010] Such as figure 1 As shown in Figure 2, the mud scraper ring for the outer wall of the drill rod of the present invention includes an elastic ring body 6, and the inner surface of the ring body is matched with the outer wall of the drill rod. The upper integral system has a support 61.
[0011] The above-mentioned elastic ring body 6 is preferably made of a material with high elasticity, wear resistance and high elongation at break, such as rubber, polyurethane, etc., preferably nitrile rubber. Its cross section can be round, oval, etc.; it can also be hollow in the middle, that is, hollow ring (such as image 3 As shown), it is convenient for the drill pipe coupling 8 to pass through with compression margin and full of elasticity.
[0012] The above-mentioned support is integrally formed on the outer circumference of the elastic ring body, and its material can be the same as or different from the ring body. Its shape can be circular or spaced on the circumference of the mud...
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