Apparatus for introducing air and water
Apparatus for lifting liquids from subsurface reservoirs
Apparatus for pumping cement slurry
Apparatus for pumping fluent solid material
Apparatus for pumping fluid from a well through a tubing string
Apparatus for pumping well effluents
Apparatus for regulating flow of a pumped substance
Apparatus for removing fluid from the ground and method for same
Apparatus for transmitting pressure from a hydraulic fluid to a
Apparatus for transmitting pressure from a hydraulic fluid to a
Apparatus for use in liquid circulation system and method for us
Arrangement for an exhaust gas turbo charger with a carrier...
Arrangement for long-distance conveying of thick matter
Arrangement on a pump unit
Articulated turbine pump
Artificial lift system for oil wells
Automatic control system for diaphragm pumps
Automatic downhole pump assembly and method for operating the sa
Automatic oil pump, with a valved pumping piston and a...
Automatic pressure-driven compressor