Opening device for an extension rod drilling equipment
Opening device for drill rods for an extension rod drilling...
Operably aligned and clamped earth boring machine
Operating assembly for a downhole tool
Operating assembly for a downhole tool
Operating wells in groups in solvent-dominated recovery...
Operation of an in situ oil shale retort
Opposed button thrust surfaces for earth boring bit
Optical fiber conveyance, telemetry, and/or actuation
Optical fiber conveyance, telemetry, and/or actuation
Optical fiber equipped tubing and methods of making and using
Optical fiber system and method for wellhole sensing of...
Optical position sensing for well control tools
Optical sensor for measuring downhole ingress of debris
Optical tool placement device
Optical wet connect
Optimised installation of the dispersion of waste gases
Optimization of cyclic steam in a reservoir with inactive...
Optimization of eccentric impact superimposed...
Optimization of reservoir, well and surface network systems