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HWDP heavy weight drill pipe oil extraction tool oilfield using
Produce
HWDP is designed to provide a good transition from a flexible drill pipe to a rigid drill collar while drilling to:
1. Reduce stress concetration between the drill pipe and drill collar;
2. Prevent differential sticking;
3. Reduce drag and torque;
4. Prevent excessive bucking by the center upset.
Product Range
Size: full range from 2 7/8'' to 6 5/8'';
Types: welded/integral: Slick/spiral;
Tool joint(connection):from API SPEC 7-2 and API RP 7G