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Heavy Weight Drill Pipe
2024-06-02 10:00Heavy Weight drill pipe(HWDP)HWDP
Heavy Weight drill pipe(HWDP): during the drilling process is the transition from flexible drill pipe to rigid drill collar:
1. Reduce stress concentration between drill pipe and drill collar;
2. Prevent differential pressure drill stuck failure;
3. The thickened part in the middle can avoid excessiveHeavy Weight Drill Pipe buckling.
Quality control standards:
1. The high impact toughness of the drill pipe body and joints improves fatigue resistance;
2. The stress relief groove of the male joint and the rear expansion hole structure of the female joint reduce stress concentration and improve fatigue performance;
3. The body is 100% FLUT+100% MPI, the joints and welding areas are 100% UT+100% MPI.
Optimize weighted drill pipe performance:
1. Experimental testing of the shackles on the joints ensures that the shackles are easy to install and meet the technical and technological requirements for drilling rig construction operations;
2. Thread cold rolling technology strengthens thread surface hardness;
3. The joints are welded with wear-resistant tape to extend the service life and reduce friction loss in key parts;
4. The inner wall of the hole is coated with an anti-acid and anti-corrosion coating to prevent corrosion and aging, extend the service life and reduce investment costs.