Improved pipe handling apparatus
Improved plug
Improved plunger lift separation and cycling
Improved plunger lift with multipart piston
Improved polished rod for oil well pumping
Improved polymer expansion for oil and gas recovery
Improved probe for pressure meter
Improved process for enhanced oil recovery
Improved process for particle circulation in a porous medium
Improved process for predicting behavior of a subterranean...
Improved process for stabilizing geological deposits
Improved pulser
Improved pump drive head with integrated stuffing box and clamp
Improved ram bore profile for variable bore packer ram in a...
Improved rebar insertion device
Improved resin groutable expansion anchor and method of...
Improved riser weak link
Improved rock bolt with ploughing anchors
Improved rock drill bit with neck protection
Improved rod guide