Applications
- Running High Demand downhole casing applications
- Rotating To aid difficult string advancement
- Drilling with Casing / Drilling with Liners
- Driving
Description
Specialty semi-premium connection machined from API Coupling Stock providing a low-cost Drilling with Casing/Drilling with Liner Connection. The GB CD EHTQ Connection performances exceed that of standard API connections. Connection designed with refined API BTC Threads. Due to geometric modifications will not make-up with standard API connections. Innovative, multiple taper buttress thread design (box only) reduces localized bearing stresses in critical areas for improved fatigue resistance. Pin noses meet in the center for positive indication of proper field makeup. Pin noses, designed for additional bearing face area, provide extra high torque resistance.
Features
- Tighter diametric tolerances for enhanced performance.
- Meets API Coupling OD and Drift Diameter Specifications.
- Field proven in a variety of static and dynamic applications.
- Excellent make/break repeatability under field conditions.
- Enhanced fatigue life.
- Full Scale laboratory cyclic tests demonstrate enhanced fatigue life.
- Can be inspected with standard API Thread Gauges by any properly trained/experienced Third Party.
- Positive makeup indication with pin nose engagement in center of connection.
- Also has API Triangle Stamp on Pin for secondary makeup verification.
- Innovative Multiple Taper Design reduces localized bearing stresses for enhanced fatigue resistance and reduced galling potential.
- Extra High Torque resistance.
- Drive-able.
Available
- Casing sizes 4 1/2″ OD to 6″ OD