Our integral heavy weight drill pipe is made from one piece of AISI 4145H solid bar, fully heat treated, all physical properties conform to API Spec 7 latest edition.
Our integral HWDP can easily solve problems arising in vertical holes in soft formation by replacing part of the drill collars.
1. Reducing torque in high-rpm or deep drilling.
2. Bring along the drill collar of stem within Less time
3. Reducing the tiresome damage of tool-joint connection
4. Easy for the stem's handling and operation
5. Helpful for keeping the direction of directional well.