Two-piece downhole drill chuck
Two-stage downhole oil-water separation
Two-stage downhole packer
Two-stage pressure relief valve
Two-stage submersible actuators
Two-step method for horizontal gravel packing
Two-step radial expansion
Two-step, differential diameter wedge threaded connector
Two-step, low torque wedge thread for tubular connector
Two-way flapper-type valve
Two-way plugs for wells
Two-zone production
U-shaped fiber optical cable assembly for use in a heated...
Ultra hard insert cutters for heel row rotary cone rock bit...
Ultra hard insert cutters for heel row rotary cone rock bit...
Ultra hard material cutter with shaped cutting surface
Ultra lightweight perforation ball sealers
Ultra-high molecular weight polyethylene sucker rod guide...
Ultra-low friction coatings for drill stem assemblies
Ultrasonic measurement apparatus and method