US Patent 7,347,459
Running Standard Large OD Downhole Casing Applications
Rotating To aid string advancementDriving
Specialty semi-premium connection machined from heavy-wall coupling stock and forged blanks. The GB 3P Connection performances exceed that of standard API connections. Connection designed with 3-Pitch threadform for easy-stabbing, fast makeup without cross-threading. Pin noses engage shoulders in the coupling center for positive indication of proper field makeup. Pin noses, designed for maximum bearing face area, provide high torque resistance.