China Heavy Weight Drill Pipe Suppliers - API Spec 7-1 HWDP from Leading Factory
Features
Quenching and tempering heat treatment for optimized toughness and wear resistance.
100% FLUT inspection on pipe bodies (longitudinal, transverse, ultrasonic thickness), and 100% UT/MPI on tool joints, upset ends, and weld zones.
Optional upgrades: make-up/breakout torque tests, cold-rolled threads, spiral grooves on center wear pads.
Performance enhancing surface options include internal plastic coating (IPC) and hardbanding for extended tool life.
Product Specification
| Size (in) |
D. (in) |
I.D. (in) |
Tool Joint O.D. (in) |
Tool Joint I.D. (in) |
Connection | Max. Elevator Diameter (in) |
Central upset Dia. (in) |
Min. Drift Dia. Size (in) |
|---|---|---|---|---|---|---|---|---|
| 3 1/2 | 3 1/2 | 2 1/4 | 4 3/4 | 2 1/4 | NC38 | 3 7/8 | 4 | 2 |
| 2 1/16 | (4 7/8, 5) | 2 1/16 | 1 13/16 | |||||
| 4 | 4 | 2 1/2 | 5 1/4 | 2 1/2 | NC40 | 4 3/16 | 4 1/2 | 2 1/4 |
| 2 9/16 | 2 9/16 | 2 5/16 | ||||||
| 4 1/2 | 4 1/2 | 2 11/16 | 6 1/4 | 2 11/16 | NC46 | 4 11/16 | 5 | 2 7/16 |
| 2 3/4 | 2 3/4 | 2 1/2 | ||||||
| 2 13/16 | 2 13/16 | 2 9/16 | ||||||
| 5 | 5 | 3 | 6 5/8 | 3 | NC50 | 5 1/8 | 5 1/2 | 2 3/4 |
| 5 1/2 | 5 1/2 | 3 1/4 | (7 1/4, 7 1/2) | 3 1/4 | 5 1/2 FH | 5 11/16 | 6 | 3 |
| 3 3/8 | 3 3/8 | 3 1/8 | ||||||
| 3 7/8 | 3 7/8 | 3 5/8 | ||||||
| 4 | 4 | 3 3/4 | ||||||
| 6 5/8 | 6 5/8 | 4 | 8 (8 1/4, 8 1/2) | 4 | 6 5/8 FH | 6 15/16 | 7 1/8 | 3 3/4 |
| 4 1/2 | 4 1/2 | 4 1/4 | ||||||
| 5 | 4 3/4 |
Frequently Asked Questions (FAQ)
What type of heat treatment is used for these drill pipes?
The drill pipes undergo a quenching and tempering heat treatment process to ensure optimized toughness and exceptional wear resistance.
What inspection standards are applied to the products?
We perform 100% FLUT inspection on pipe bodies (including longitudinal, transverse, and ultrasonic thickness), and 100% UT/MPI on tool joints, upset ends, and weld zones.
Are there any optional upgrades available for the drill pipes?
Yes, optional upgrades include make-up/breakout torque tests, cold-rolled threads, and spiral grooves on center wear pads.
What surface coating and hardbanding options do you offer?
Coating options include TK34, TK34P, TC2000, and DPC2000. For hardbanding, we offer Arnco 100XT, Arnco 300XT, and other performance-enhancing surface options.
Why should operators choose TAKELO HWDP?
With extensive field applications in both onshore and offshore drilling, TAKELO HWDP consistently demonstrates lower failure rates and extended run life, making it a highly durable choice that reduces non-productive time (NPT).