Method and apparatus for remote control of an underwater valve

Patent · Tue Feb 21 00:00:00 EST 1989

OSTI ID:6227285

Carman, R J; Fitzgibbons, M R; Sweety, J A

This patent describes an apparatus for remotely controlling operation of a subsea valve in a fluid transmission pipeline with an acoustic signal transmitted from the surface to the subsea valve, the valve including a valve stem rotatable for controlling the flow of fluid through the valve body and thus the transmission line. The apparatus consists of a control housing fixedly connected to the valve body; a valve actuator housing fixedly connected to the control housing; an actuator shaft rotatably mounted within the valve actuator housing; means for applying a preselected torque to the actuator shaft; a control means rotatably mounted within the control housing; and disconnecting means adjacent the subsea valve for automatically deactivating the mechanical connector means in response to the acoustic signal, such that deactivation of the mechanical connector means automatically operates the valve in response to the preselected torque of the biasing means.

• Assignee: Ferranti Subsea Systems, Inc., Sugar Land, TX
• Patent Number(s): US 4805657
• OSTI ID: 6227285
• Resource Relation: Patent File Date: Filed date 29 Feb 1988
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
PIPELINES
DESIGN
VALVES
COMPUTERIZED CONTROL SYSTEMS
ACOUSTICS
ACTUATORS
AUTOMATION
JOINTS
NATURAL GAS
PETROLEUM
REMOTE CONTROL
SHAFTS
TORQUE
TRANSPORT
UNDERWATER OPERATIONS
CONTROL
CONTROL EQUIPMENT
CONTROL SYSTEMS
ENERGY SOURCES
EQUIPMENT
FLOW REGULATORS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MACHINE PARTS
023000* - Petroleum- Properties & Composition
032000 - Natural Gas- Transport
Handling
& Storage
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)