Heavy weight Drill pipe 1、 Heavy weight Drill pipe is one drilling tool which has a medium-weight and similar to drill pipe. Wall thickness is larger than that of the drill pipe, and it is smaller than drill collar. Generally add between the drill pipe and drill collar when...Read More
Square Kelly Pipe 1、Position of the drill string：On top end of drill string, upper end connects with swivel, and lower end connects with drill pipe and in drilling by rotary table. 2、The shape of drive section is square. Upper end is box thread , left hand，No bore back, key...Read More
API 5DP Drill Pipe API 5DP Drill pipe is a basic component of the BHA which provides torque energy and transmits drilling fluid. It can drill a deeper well with constantly connecting with other drill pipes. Besides above working function, drill pipe suffers not only the...Read More
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