Pressure sensor insert for a downhole tool
Pressure signalling for fluidic media
Pressure test and bypass valve with rupture disc
Pressure testing plug with layered glass discs
Pressure wave expansion tool
Pressure waves decoupling with two transducers
Pressure-actuated perforation with automatic fluid...
Pressure-actuated perforation with continuous removal of debris
Pressure-actuated running tool
Pressure-actuated valve and method
Pressure-balanced choke system
Pressure-balanced rod piston control system for a subsurface...
Pressure-balanced well service valve
Pressure-boost device for downhole tools
Pressure-compensation system
Pressure-controlled accumulator charging valve system for...
Pressure-medium driven percussion device
Pressure-medium operated percussion or impact apparatus
Pressure-operated oil and gas well swabbing device
Pressure-up/blowdown combustion - a channelled reservoir...