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API 5DP oil drill pipe
API 5DP oil drill pipe
Heavy Weight Drill Pipe (short for HWDP) is an intermediate weight drill stem component which is used in conjunction with the drill pipe and drill collars. SEACO HWDP is available in standard, spiral and non-magnetic designs. In some applications, heavy-weight also can be used instead of the drill collars.
SEACO Drill Collar has been approved by the NS-1 certification which is made from one-piece 4145H modified quenched and tempered steel. It designed for tough drilling environments in vertical and directional wells; for vertical wells, SEACO HWDP is a transition member; for directional holes it is a weight member and provides additional stiffness to prevent buckling.
Features and Benefits:
1. A centre upset or wear pad to increase tube life, reduce hole drag and differential sticking problems;
2. Connections are completed(phosphate coated) to protect them from the elements after machining and to help prevent galling uponinitial make-up;
3. Thread roots are cold rolled on API and H-90 connections. And pressed steel thread protectors are supplied for standard connections;
4. Hardbanding and Internal Coating can be provided on customer's request.
Specifications - Heavy Weight Drill Pipe:
| Chemical Composition(%) | ||
| Grade | Chemical composition | |
| P | S | |
| E75 | <0.015 | <0.003 |
| G105 | <0.015 | <0.003 |
| S135 | <0.015 | <0.003 |
| Tool joint | <0.015 | <0.003 |
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