Safety coupling for rotary down hole pump

Safety coupling for rotary pump

Safety disc brake assembly

Sampling pump with packer

Secondary recovery system utilizing free plunger air lift system

Sub-sea well re-entry guidance apparatus

Submersible chemical injection pump

Submersible pump

Subsea control valve apparatus

Subsea hydraulic choke

Subsea oil and gas production manifold system

Subsurface well apparatus having flexing means and method of usi

Subsurface wellhead shield

Sucker rod coupling with protective coating

System and method for controlling solids in a down-hole...

System for decreasing resistance to flow of crude oil up from a

System for the production of crude oil by the injection of treat

System of suppressing the discharge casing string in deep-well v

System to proportion assisting fluids in a well

System, method and apparatus for scale resistant radial...