Non-magnetic drill collar/pony collar for oil well drilling
Negotiable /Piece
Min.Order:1 Piece
Shaanxi Senwell Import & Export Co., Ltd.
Usage: Drill collars are used to provide weight on bit so that drill pipes are kept in tension. Especially, drill collars can keep drill bits centralized and hole track by large rigidity.
Standard: API Spec7, API Spec7-1 and SY/T Standard.
DS-1 and NS-1 standard can be supplied
Hard banding: Arnco 100XT,Arnco 200XT,Arnco 300XT;Botn 1000,Botn 3000,TCS 8000,
TCS-Titanium, Armacor M etc, or according to customers' requirements.
Size: OD 3-1/8"—11",ID 1-1/2"Min; Length:10’—31’