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...

Improved measurement port coupler and probe interface

Improved method and apparatus for injection of tubing into...

Improved method and product for cementing hydrocarbon wells

Improved method for flow control and autonomous valve or...

Improved method for reinforcing geological strata

Improved method for the drilling of oil wells