Method for transmission of pressure signals through a conduit

Details Method for transmission of pressure signals through a conduit Method for transmission of pressure signals through a conduit

F - Mech Eng,Light,Heat,Weapons

16

K

166/46.2, 166/46

F16K 31/12 (2006.01) E21B 33/035 (2006.01)

Patent

CA 1167762

ABSTRACT An improved method for transmitting fluid pressure signals through a conduit is disclosed wherein time delay is minimized. In the practice of this inventin, a pressure pulse is applied to a conduit for a predetermined time interval and thereafter reduced to a maintenance level. The invention is particularly useful in sequentially controlling subsea oil well valves from a remote surface station.

381303

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