Q4000

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Drilling vessel Helix Q4000 at sea in the Gulf of Mexico.
Career
Name: Q4000
Owner: Cal Dive International
Operator: Helix Energy Solutions
Port of registry: Houston, Texas
Ordered: 1999
Builder: Keppel AmFELS
Brownsville, Texas
Cost: US$156 million
Laid down: 18 December 1999
Completed: 07 March 2002
Identification: Call sign: WDA6676
DNV ID: 24342
IMO number: 8767123
ABS class no.: 0239326
MMSI no: 369550000
Status: Operational
Notes: [1][2]
General characteristics
Class and type: American Bureau of Shipping
A1, Column Stabilized MODU
Tonnage: 14,802 GT
Length: 95.1754 m (312.255 ft)
Beam: 62.7856 m (205.990 ft)
Depth: 29.6243 m (97.193 ft)
Deck clearance: 9,436.1 mm (371.50 in)
Speed: 12 kts
Crew: 133
Notes: [1]

Q4000 is a unique multi-purpose oil field construction and intervention vessel.

Vessel design

Q4000 was commissioned in 1999 by Cal Dive International, and was built at the Keppel AmFELS shipyard in Brownsville, Texas. She was delivered in 2002 within the $180 million budget, and operates under the flag of the United States.[3] She is operated by Helix Energy Solutions Group.[4]

Q4000 also has a unique column-stabilized semi-submersible design that combines dynamically positioned station-keeping with a large deck space, significant deck load capacity and a high transit speed of 12 knots. The vessel provides a stable platform for a wide variety of tasks, including subsea completion, decommissioning and coiled tubing deployment, and she is specifically designed for oil well intervention and construction in depths of up to 3048 meters of water.

Features: [5]

  • dynamic positioning with 6 azmuthing thrusters
  • a multi-purpose Huisman designed three-sided tower capable of fulfilling all traditional derrick roles
  • two cranes with lifting capacities of up to 360 Tonnes
  • seabed access to 3048 meters
  • an 11.9 meter x 6.4 meter moonpool
  • a 7 3/8 inch intervention riser system (The vessel was refitted with a slimbore drilling capability in 2008).
  • a 3048 meter heavy weather ROV system
  • an overall deck capacity of 4,000 Te.

Deepwater Horizon spill response

Q4000 is currently in the Gulf of Mexico participating in the response to the Deepwater Horizon oil spill. The vessel was used to position the large containment dome and also to attempt the "top kill" in which large quantities of drilling mud were pumped down the Q4000 drilling pipe into the failed Deepwater Horizon blowout preventer valve (BOP) in an attempt to stop the flow of oil. Both attempts failed to stop the oil leaking from the well. The Q4000 remains on the scene of the oil spill and is now assisting the drillship Discoverer Enterprise in further attempts to stop the leak.

References

  1. 1.0 1.1 "ABS Record: Q4000". American Bureau of Shipping. 2010. http://www.eagle.org/safenet/record/record_vesseldetailsprinparticular?Classno=0239326. Retrieved 4 June 2010. 
  2. "Q4000". DNV Exchange. Det Norske Veritas. 2010. https://exchange.dnv.com/exchange/main.aspx?extool=vessel&subview=owner&vesselid=24342. Retrieved 8 June 2010. 
  3. "Cal Dive takes delivery of Q4000". Offshore Shipping Online:. 12 April 2002. http://www.oilpubs.com/oso/article.asp?v1=2975. Retrieved 07 June 2010. 
  4. Noah Brenner; Anthea Pitt (28 May 2010). "BP calls in FPSO for Macondo". Upstream Online. http://www.upstreamonline.com/live/article217033.ece. Retrieved 07 June 2010. 
  5. Q4000. Helix Well Ops. 9 September 2008. http://www.helixesg.com/Portals/0/PDFs/WellOps/Q4000.pdf. Retrieved 07 June 2010. 

External links