Threading & Premium Connections

Our facility specialises in API threading for casing, tubing, and drill stem applications, ensuring precision and performance in demanding oilfield environments. We offer premium threading services across industry-leading specifications including Vallourec (VAM), Grant Prideco (GP), Hunting, Tenaris Hydril (TSH), and NOV XL, meeting the highest standards for reliability and compatibility. In addition to threading, we provide full machining capabilities and accessory manufacturing tailored to exact project needs, supported by copper plating processes, manganese, and zinc phosphate treatments that enhance corrosion resistance and durability.

  • Full-Length Drill Pipe, Casing, and Tubing
  • Crossovers, Subs, Side Entries
  • Custom Downhole Tools
  • Junk Baskets, Mills, Drift Mandrels
  • Wash pipes, Lift Nubbins, Lift subs, special complex accessories.
  • Customer-designed and API-compliant components
  • Casing and Tubing Couplings
  • Customer-supplied and OEM Packers
  • Customer-supplied and OEM Casing and Tubing Hangers
  • Customer-supplied and OEM Float Equipment
  • An extensive range of inspection equipment is available to complement our License and customer manufacturing requirements.

Design Review Calculation Process

  • Each project is supported by a structured design review and calculation process to ensure compliance, performance, and operational safety:
  • Design Input Verification – Review of client specifications, OEM drawings, and applicable API/premium connection standards.
  • Engineering Calculations – Wall thickness checks, connection stress analysis, make-up torque calculations, using recognised engineering practices.
  • Peer & Supervisor Review – Independent validation of calculations and design assumptions by senior engineers.
  • Documentation & Approval – Compilation of design review reports, calculation sheets, and compliance statements for client records.
  • Continuous Feedback Loop – Lessons learned from field performance are incorporated into future design and calculation practices.

This integrated process ensures that every threaded or machined product delivered from our facility meets not only dimensional accuracy but also the mechanical integrity and service life expectations required in the oilfield.

Threading Services - Premium & API Connections

At Pioneer Engineering, our facility specialises in API threading for casing, tubing, and drill stem applications, ensuring precision and reliability in even the most demanding oilfield environments.

We offer premium threading services across a wide range of connections from leading, industry-recognised manufacturers, including:

  • VALLOUREC (VAM)
  • Tenaris Hydril (TSH)
  • Grant Prideco (GP)
  • Hunting
  • NOV XL Systems

Our processes comply fully with API and OEM license requirements to guarantee high performance, reliability, and connection integrity.

Machining & Accessory Services

In addition to threading, we offer accessory manufacturing services tailored to specific project requirements.

Beyond precision threading, we provide a full range of accessory manufacturing and repair services tailored to meet the specific requirements of your project.

DSC06057-m-min.jpg

Commonly Manufactured & Repaired Components

We manufacture and service a wide variety of components, including:

  • Full-Length Drill Pipe, Casing & Tubing
  • Crossovers, Subs, Side-Entry Subs
  • Custom Downhole Tools
  • Junk Baskets, Mills, Drift Mandrels
  • Wash Pipes, Guide Shoes, Lift Nubbins
  • API-Compliant & Customer-Designed Components
  • Casing & Tubing Couplings
  • Customer-Supplied or OEM:
    • Float Equipment

Surface Treatments & Coatings

All components are treated with specialized surface finishes as required by license specifications. We are fully qualified to apply the following coatings:

  • Copper Plating
  • Manganese Phosphate Coating
  • Zinc Phosphate Coating
  • Peen Blasting (Sand blasting)

These treatments enhance corrosion resistance and help prevent galling during make-up and operational service.

Inspection & Compliance

We maintain an extensive range of inspection and testing equipment to fully support both our licensed threading operations and customer-specific manufacturing requirements.

All inspection activities are performed in line with relevant API, OEM, and client specifications, ensuring compliance, traceability, and the highest quality standards across every stage of production.

For a full list of threading licenses, gauges and inspection capabilities, please contact.

Need Something Specific?

Get in touch with our team to discuss your requirements or request a tailored quote today.

We’re ready to support your project with precision-engineered solutions and dependable lead times.

 

Premium Threading Licenses

hardbranding
tps
vam
 
vam
 

thread banner

API Vallourec (VAM)  License No. 915  Tenaris Hydril (TSH) License No. 296 Hunting Energy Services License
Quality & Monogram License Qualified Connections Qualified Connections Qualified Connections
ISO 9001:2015 - Reg No. 3094 VAM TOP BLUE SEAL-LOCK BOSS
API Q1 - Reg No. Q1-3117 VAM TOP HT BLUE LW SEAL-LOCK HT
API 5CT  - Reg No. 5CT-1874  VAM TOP HC BLUE QUICKSEAL  
API 5B - Reg No. 5B-0629  VAM TOP FE BLUE NF  
API 7-1 - Reg No. 7-1-1355  VAM TOP KP BLUE NF  
API 7-2 - Reg No. 7-2-1124  VAM SLIJ II WEDGE 511  
API 6A - Reg No. 6A-1863  VAM 21 WEDGE 513  
API 16A - Reg No. 16A-0486  VAM 21 HT WEDGE 521  
  DINO VAM WEDGE 523  
  VAM FJL WEDGE 561  
  VAM HP WEDGE 563  
  VAM HP-II WEDGE 613  
  VAM BOLT WEDGE 623  
  VAM BOLT II SLX  
  VAM HW  MS  
  VAM HW ST MS XT / XC  
  VAM SFC 3SB  
  VAM HTT 3SB SL  
  VAM HTTC 3SB ST  

 

Grant Prideco License No. 17-1629 NOV XL Systems License No. 2025-003 Postle Industries License No. 011922DBTB121 Castolin Eutectic License No. CE 2025-01208
Qualified Connections Qualified Connections Qualified Hardbanding Process Qualified Hardbanding Process
XT Series Xcalibur DURABAND NC OTW 13CF
HT Series   TUFFBAND NC  
GPDS Series      
VX Series      
DELTA Series      

 

Sterling License No. SBP-24/0103-F
Qualified Copper Plating Process
Brush Method (Approved by VAM and TSH)