Deformable metal-to-metal seal

Device for clamping a fluidic component

Device for locking and sealing standard cone-socket joints for l

Differential wedge thread for threaded connector

Double cone coupling nipple of a steel tubing and method of maki

Double flex seal for tubular connection

Double shoulder oilfield tubular connection

Dovetail connection for pin and box joints

Dovetail connection for pin and box joints

Drill collar box

Drill collar connections

Drill pipe coupling

Drill pipe with improved connectors

Drill rod coupling

Drill stem connection

Driveable threaded tubular connection

Dual metal seal for wellhead housing

Dual synchronized thread fluid connector cross-reference to rela