heavy weight drill pipe

heavy weight drill pipe production (HWDP).

Weighting the drill pipe 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 excessive buckling.

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.

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