DRILCO Premium Connections

Overview Product Sheets

Increase drilling safety & performance

Contact DRILCO to discuss connections that will provide superior torque capacity and extend drillpipe service life for your drilling operation.

XPC extreme-profile single shoulder connection

Developed to eliminate twist offs and reduce NPT and maintenance costs associated with downhole failures, the XPC extreme-profile single shoulder connection significantly increases fatigue life overstandard API NC connections. It is a proprietary connection that is compatible with Schlumberger BHA components.

The advanced connection design offers superior resistance to galling with improved makeup capacity. Using an innovative thread form, with advanced manufacturing processes applied to the thread, XPC connections have more than 10 times improved fatigue resistance and 15% higher torque than the equivalent API NC connection. The connection is designed specifically for BHA components with similar collar inside and outside diameters as standard API NC connections, which prevents the customer from having to compromise the tool hydraulics by modifying its internal components.

Using these connectors, challenging well profiles can be drilled with confidence at high ROP in severe downhole conditions, including high rpm, high shock and vibration, and at high DLS, with a greatly reduced risk of catastrophic connection failure. The single-shoulder rotary connector also enables faster makeup speed at the rig.

XPC Connections Overcome Fatigue While Performance Drilling, Delaware Basin

During slimhole performance drilling in the Delaware Basin, an operator used XPC connections to reduce twistoff events by 89% and increase fatigue life 10 times over conventional connections, in turn boosting ROP by 34%. Read tech report


SSDS high-torque connection

The SSDS high-torque connection provides torque capacity that is 40% to 50% greater than that of standard connections for comparable-size drillpipe.

ATDS advanced-torque connection

The advanced-torque doubled-shouldered (ATDS) connection provides a torque capacity that is 50% to 55% greater than that of standard connections for comparable-size drillpipe. The advanced-torque series of connections is designed for use on small-diameter drillpipe, such as 2 3/8- and 2 7/8-in sizes, where the torsional strength of the standard-size connections is extremely limited. Drillpipe fitted with the ATDS connection cannot be used with conventional drillpipe.

DRILCO premium connections ideal for aggressive drilling programs

The higher torque capacity of these connections substantially increases drilling safety and performance. The superior torsional strength makes them ideal for use in aggressive drilling programs. The double-shoulder design allows the primary external shoulder to serve as the sealing surface, while the secondary shoulder serves as the mechanical stop for the connection. The pin and box connections are engineered to distribute the makeup forces between the two shoulders, providing additional torsional strength for high-torque applications.

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DRILCO Connections Improve Drilling Performance with Greater Torque Capacity

ATDS Connection
See all DRILCO products, including the advanced-torque doubled-shouldered (ATDS) connection (shown above). Download Tubulars and Tubular Services catalog (1.35 MB PDF)