Zero Leakage for Offshore Productions With Rotary Gate Valves

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Weir Valves & Controls

Operational Tests

• factory acceptance tests

• hyperbaric testing

• static tests (2 hour duration)

• cycle tests (200 cycles)

• endurance testing (1200 cycles)

• flow capacity test

• performance verification

What to Expect From Future Development

Over 20 of these valves have been successfully supplied to the Ormen Lange Project, and 15 have been installed subsea and have been operating since 2007. Twenty valves are being supplied for the Gorgon and Jansz-lo fields in the Barrow sub-basin offshore north western Australia, with gas predicted to flow beginning in 2014. Different future projects of similar nature around the world are being planned, and ultimately it is anticipated that the unique design of this valve will mean it will be capable of being installed on isolation, control and choke applications.

* The author is the Principle Engineer at Weir Valves & Controls UK.

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