The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 2010
Filed:
Dec. 06, 2006
Jeremiah Daniel, Houston, TX (US);
Jin-sug Chung, Katy, TX (US);
Ramanathan Ramaswamy, Katy, TX (US);
Joseph M. Gebara, Houston, TX (US);
John L. Upchurch, Sugar Land, TX (US);
Jeremiah Daniel, Houston, TX (US);
Jin-Sug Chung, Katy, TX (US);
Ramanathan Ramaswamy, Katy, TX (US);
Joseph M. Gebara, Houston, TX (US);
John L. Upchurch, Sugar Land, TX (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
The present invention relates to overpressure protection systems and methods for use on a production system for transferring hydrocarbons from a well on the seafloor to a vessel floating on the surface of the sea. The production system includes a subsea well in fluid communication with a turret buoy through a production flowline and riser system. The turret buoy is capable of connecting to a swivel located on a floating vessel. The overpressure protection device is positioned upstream of the swivel, to prevent overpressure of the production swivel and downstream components located on the floating vessel. The device may include one or more shut down valves, one or more sensors, an actuator assembly, and a control processor. Each shut down valve and sensor is coupled to a production flowline. Each of the sensors is capable of generating a signal based upon a pressure sensed within the production flowline. The actuator assembly is connected to each of the shut down valves for operating the shut down valves. The control processor, which may be a programmable logic controller, receives a signal from the sensors and sends a valve control signal to the actuator assembly for operating the shut down valves in response to the received signals.