Pup Joints
Engineered for Maximum Strength and Durability
Overview
PD Engineering manufactures and supplies top-tier Pup Joints. Customized length pup joints for precisely adjusting the length of drill strings in complex Oil & Gas operations.
Our premium pup jointss are manufactured using the most advanced friction welding technology in the world. The tool joint adapters are permanently forged to the tube, resulting in a seamless bond that guarantees superior reliability, prevents downhole failures, and withstands extreme torque in harsh global drilling environments.
By utilizing high-grade steel and strict quality control measures, we ensure that every drill rod delivered offers unmatched performance.
Why Choose Our pup jointss?
Engineered for longevity and maximum drilling efficiency.
Friction Welded Joints
Tool joints are friction welded to the drill tube, creating a bond stronger than the parent material for maximum torque resistance.
Uniform Normalization
Each friction welded drill rod is uniformly normalized to relieve stress and ensure consistent mechanical properties throughout.
Extended Lifespan
Superior tensile strength and wear resistance give our pup jointss a significantly longer operational life, reducing replacement costs.
Technical Specifications
Standard sizes manufactured for DTH Waterwell and Mining applications.
| Pipe OD (Inches) | Available Lengths (Feet) | Connection Type |
|---|---|---|
| 5 1/2 | 20', 15', 10', 5' | NC38 (3 1/2 IF) |
| 5 | 20', 15', 10', 5' | NC38 (3 1/2 IF) |
| 4 1/2 | 20', 15', 10', 5' | NC31 (2 7/8 IF) |
| 3 1/2 | 20', 15', 10', 5' | NC26 (2 3/8 IF) |
| 2 7/8 | 20', 15', 10', 5' | NC26 (2 3/8 IF) |
| 2 3/8 | 20', 15', 10', 5' | NC26 (2 3/8 IF) |
* Custom lengths and specifications are available upon request.
100% Rig Compatibility
Our pup jointss are compatible with all major rig manufacturers operating globally, including:
Frequently Asked Questions About Pup Joints
Common queries regarding our manufacturing and specifications.
A friction welded pup joints uses a solid-state welding process that generates heat through mechanical friction to join the tool joint to the tube. This creates a seamless, forged bond that is incredibly strong and highly resistant to torsional stress during drilling.
We manufacture pup jointss with industry-standard API connections, primarily including NC38 (3 1/2 IF), NC31 (2 7/8 IF), and NC26 (2 3/8 IF), ensuring compatibility with standard drilling rigs worldwide.
Yes. While our standard lengths are 20', 15', 10', and 5', we frequently manufacture customized length pup joints and drill rods to meet the specific requirements of complex Oil & Gas and HDD applications.
Absolutely. Our pup jointss are heavily utilized in DTH (Down-The-Hole) water well drilling, as well as mining and geothermal applications, thanks to their robust design and compatibility with rigs like Atlas Copco and Sandvik.
Ready to Order?
Contact our engineering team to get a quote or discuss custom requirements.