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US 6,644,410 B1Granted
Modular subsea control system
AssigneesChristopher John Lindsey-Curran, Earl V. Schultz, Jr., John C. MacNeil
InventorsChristopher John Lindsey-Curran, Earl V. Schultz, Jr., John C. MacNeill
Life of this patent
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Abstract
A modular control system having independently and separately retrievable parts for use on subsea equipment, including subsea Christmas trees, and subsea manifolds.
Claims20
A modular control system comprising:
- i) an outer housing capable of receiving an inner module;
- ii) an inner module, with each inner module consisting of:
- a) a rear side;
- b) a first side;
- c) a second side;
- d) a top;
- e) a bottom;
- and
- f) a front side;
- iii) at least one connector secured to said rear side of said inner module for engaging said outer housing;
- iv) a coupling for engaging said connectors of said inner module and said outer housing;
- v) control means secured in said inner module for opening, closing, monitoring, and measuring the status of valves and similar devices on said modular control system;
- vi) a restraining device to restrain said inner module in said outer housing;
- and
- vii) handling means extending from said first side to said second side for use in installation or removal.
12 more elements
A modular subsea control system for controlling a subsea installation on the sea floor comprising:
- a) a subsea master control station for providing control signals to the subsea installation for control;
- b) an umbilical from said subsea master control station to a surface location which acts as a source;
- c) a modular subsea control system connected to said subsea master control station:
- i) a housing for containing an inner module;
- and
- ii) an inner module for removably connecting to said housing, and wherein said inner module and said housing comprise connectors for interengaging with each other and with said umbilical, couplings for said connectors, control means for receiving and transferring hydraulic and electrical signals from sensors located on said subsea installation to and from the surface location;
- iii) a valve driver for controlling between valves on the subsea installation;
- and
- iv) a handling means for receiving a connection from a remotely operated underwater vehicle, whereby the remotely operated underwater vehicle can engage said inner module and independently recover and replace individual inner modules.
6 more elements
Dependencies are inferred from the claim text.