DEENPU Drill Pipe Pup Joints
API
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Product Overview
DEENPU drill pipe pup joints are short drill pipe sections used to locate the top box of the drill string at a specified distance from the rig floor — essential for special drilling and well testing operations where the string makeup must land precisely.
They are machined either from solid round bar or from heavy wall tubing in AISI 4145H material, with API tool joint connections matching the string. Any length is available on request.
Key Features
- AISI 4145H, machined from round bar or heavy wall tubing
- API tool joint connections matched to your string
- Any length — custom lengths standard offering
- Full mechanical properties matching drill collars
Technical Specifications
| Material | AISI 4145H |
| Connections | API rotary shouldered (NC / Reg / FH) |
| Lengths | Standard and custom |
Dimensions & Technical Data
Drill pipe pup joint dimensions
Quality & Testing
Every DEENPU Drill Pipe Pup Joints is manufactured under our API-compliant quality system: raw material traceability, 100% dimensional inspection, hydrostatic pressure testing and hardness verification before packing. Material certificates, inspection reports and API documentation are provided with shipment on request.
Applications
- Positioning drill string at specific rig floor distance
- Well testing and DST string makeup
- Special drilling operations
Frequently Asked Questions
Q: Which material is used for pup joints?
A: AISI 4145H, machined from solid bar or heavy wall tubing, with mechanical properties equivalent to drill collars.
Q: Can I get odd lengths?
A: Yes — pup joints are made to any specified length.
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Get a Quote for the Drill Pipe Pup Joints — DEENPU
Contact DEENPU for factory-direct pricing, API documentation and fast worldwide delivery.
Email: SALES@DEENPU-MACHINERY.COM | WhatsApp: +86 180 5172 8055
