Improved electron transfer system for well acidizing...

Improved enhanced oil recovery

Improved expander tool for downhole use

Improved flexible cup for downhole devices

Improved fluid circulation apparatus

Improved formation evaluation through azimuthal tool-path...

Improved free fall survey instrument

Improved full bore nipple and associated lock mandrel therefor

Improved gage configurations for drill bits

Improved guided mole

Improved hanging apparatus and method

Improved heat transfer through electrical submersible pump...

Improved heat transfer through the electrical submersible pump

Improved hollow sucker rod connection with second torque...

Improved hydrocarbon gelling compositions useful in...

Improved in-situ combustion recovery process using single...

Improved inflatable packers

Improved inflatable packers

Improved logging device and method within wellbores

Improved mast and trolley arrangement for mobile...