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Drill Collar

Product Details

Drill Collar
Drill Collar
The Drill Collar is used between the drill pipe and the bit in the drill stem. It is used to put weight on the bit so that the bit can drill.Including slick drill collar & spiral drill collar.
Drill collars are trepanned and drifted to API Spec 7. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7 requirements. A hardness range of 285-341, Brinell Hardness and Charpy gV h notch minimum impact strength of 40 ft-lb at 70OF are guaranteed one inch below the surface.

Contact Information

Contact Personbrigette
Telephone+86 29 88368846
Fax Number
Websitehttps://www.gmdu.net/corp-916315.html
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AddressRoom 10401, Building 31, Tangyuan Xiaoqu,No.69 Dianzi Zhengjie, Yanta District, Xi'an, China 710065
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