US 12,241,564 B2
Force balanced reciprocating valve
Volker Peters, Wienhausen (DE)
Assigned to BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on Jan. 31, 2024, as Appl. No. 18/428,763.
Application 18/428,763 is a division of application No. 16/919,754, filed on Jul. 2, 2020, granted, now 11,892,093.
Claims priority of provisional application 62/870,261, filed on Jul. 3, 2019.
Prior Publication US 2024/0175517 A1, May 30, 2024
Int. Cl. E21B 47/24 (2012.01); F16K 31/122 (2006.01); F16K 31/52 (2006.01)
CPC F16K 31/1223 (2013.01) [F16K 31/52 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of generating pressure pulses, the method comprising:
receiving a communication at a processing device, the processing device configured to control a communication module including a valve member and a restriction disposed in a fluid passageway;
controlling, by an actuator, movement of the valve member relative to the restriction in a valve member stroke direction to generate pressure pulses in a fluid in the fluid passageway based on varying a relative position between the valve member and the restriction and creating a differential pressure across the fluid passageway, the differential pressure applying a first force on the valve member; and
transmitting the pressure pulses through the fluid to a receiver, wherein:
the communication module includes a piston member in hydraulic communication with the differential pressure, the differential pressure applying a second force on the piston member and moving the piston member in a piston member stroke direction, the piston member stroke direction being opposite the valve member stroke direction, the piston member having a locomotive connection to the valve member.