Heavy Weight Drill Pipe , one drilling tool which has a
medium-weight and similar to drill pipe , Oil Drilling Tools
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 compose
the drill string, to prevent mutation of cross section of drill
string, and reduce the fatigue of drill pipe. When used in
directional well, it can drill with high speed under the condition
of lower torque, which reduce the wear and tear of the drill
string. Due to the small sidewall contact area, it is not easy to
form differential pressure sticking.
2, Structure type of heavy weight drill pipe: integral, and
3, It can be welding hardbanding on joint or middle upset on heavy
weight drill pipe (Optional)
4, Product standards: API 7-1, API7-2, NS-1
1, With the sufficient hole-drilling and digital control machines,
greatly meet the production requirement.
2, All raw materials are inspected well to ensure production
performance qualification by the various laboratory machines.
3, Our company, with strong development ability, can improve and
design special structure as per user special need on the production
4, With special cold-rolling machines and break-up and break-out
machines, our company can independently achieve thread, stress
relief groove, and thread running operations.