Completion Accessories
Completion accessories are the supplementary tubular components that complete the casing and tubing string — short pup joints for depth adjustment, couplings for connecting pipe joints, and threaded accessories for wellhead and packer interfaces. They must be dimensionally and metallurgically compatible with the OCTG string and connections they are used with.
What Completion Accessories Cover
| Item | Function |
|---|---|
| — | — |
| Pup joints | Short lengths of casing or tubing used to fine-tune string length and land the string at the correct depth |
| Couplings | Threaded collars connecting individual pipe joints in a casing or tubing string |
| Cross-over subs | Connect pipe of different sizes, weights, or thread types within the same string |
| Handling tools | Lift subs, thread protectors, drifts — used during pipe running operations |
Product Range — Hunting PLC
Pup Joints
Pup joints are manufactured in the same size, weight, grade, and connection as the associated casing or tubing string. Supplied in standard lengths from 2 ft to 10 ft, or cut to customer-specified length. With premium connections, pup joints are manufactured and inspected to the same standard as the full-length pipe.
Couplings
Hunting supplies couplings for API connections (BTC, LTC, STC) and for premium connections (SEAL-LOCK®, TEC-LOCK™). All couplings are manufactured from the same grade as the pipe body and inspected before shipment. Couplings are supplied as part of the OCTG order or separately as spares.
Threaded Accessories
Threaded accessories include crossover subs, bull plugs, handling subs, and pup joints with mixed connections — for example, a pup joint with SEAL-LOCK® pin on one end and API BTC box on the other for connecting to a wellhead or packer with API thread. These are manufactured to order based on the customer's completion programme.
Key Specifications
| Parameter | Details |
|---|---|
| — | — |
| Sizes | Match OCTG string size — 1.9" to 20" |
| Grades | Match OCTG string grade — J55 to Q125 |
| Connections | API and all Hunting premium connections |
| Lengths | Pup joints: 2 ft – 10 ft standard; custom on request |
| Standard | API 5CT |
| Documentation | Mill test reports, dimensional inspection |
Why Source Through Proxima
Proxima supplies Hunting completion accessories as part of the complete OCTG order — ensuring dimensional and metallurgical compatibility across the entire string. We order pup joints and accessories to the exact lengths and specifications required by your completion programme.
Frequently Asked Questions
Q: Why are pup joints needed in a completion programme?
The depth at which the tubing or casing must be landed is determined by the completion design — packer depth, wellhead landing elevation, or perforated interval. Standard 40-foot pipe joints rarely allow the string to be landed at exactly the right depth. Pup joints of the correct length make up the difference.
Q: Can Proxima supply pup joints with premium connections?
Yes. Pup joints with SEAL-LOCK® and TEC-LOCK™ connections are manufactured to the same standard as full-length OCTG. Specify the connection type, OD, weight, grade, and required length.
Q: What is a crossover sub and when is it needed?
A crossover sub connects pipe of different thread types, sizes, or weights within the same string — for example, connecting a tubing string with SEAL-LOCK® connection to a packer with API thread. Crossovers are manufactured to order. Specify both end connections, OD, and grade when ordering.
