Q4000

Drilling vessel Helix Q4000 at sea in the Gulf of Mexico.

Career

<tr valign="top"><td>Name:</td><td> Q4000</td></tr><tr valign="top"><td>Owner:</td><td> Cal Dive International</td></tr><tr valign="top"><td>Operator:</td><td> Helix Energy Solutions</td></tr><tr valign="top"><td>Port of registry:</td><td> United States, Houston, Texas</td></tr><tr valign="top"><td>Ordered:</td><td> 1999</td></tr><tr valign="top"><td>Builder:</td><td> Keppel AmFELS Brownsville, Texas</td></tr><tr valign="top"><td>Cost:</td><td> US$156 million</td></tr><tr valign="top"><td>Laid down:</td><td> 18 December 1999</td></tr><tr valign="top"><td>Completed:</td><td> 07 March 2002</td></tr><tr valign="top"><td>Identification:</td><td> [[American Bureau of Shipping|ABS class no.:]] 0239326 [[Call sign]]: WDA6676 [[Det Norske Veritas|DNV ID: 24342]] [[Category:IMO Number|8767123]] [[IMO number]]: 8767123 [[Maritime Mobile Service Identity|MMSI no: 369550000]]</td></tr><tr valign="top"><td>Status:</td><td> Operational</td></tr><tr valign="top"><td>Notes:</td><td> </td></tr> |- ! colspan="2" height="30" style="background-color: #B0C4DE; text-align: center; vertical-align: middle; font-size: 110%;" | General characteristics <tr valign="top"><td>Class & type:</td><td> [[American Bureau of Shipping]] A1, Column Stabilized MODU</td></tr><tr valign="top"><td>Tonnage:</td><td> 14,802 [[Gross tonnage|GT]]</td></tr><tr valign="top"><td>Length:</td><td> 95.1754 m ([[Category:Pages with bad rounding precision]]Bad rounding here{{#invoke:Math|precision_format| 312.255249344 | 1-2 }} ft)</td></tr><tr valign="top"><td>Beam:</td><td> 62.7856 m ([[Category:Pages with bad rounding precision]]Bad rounding here{{#invoke:Math|precision_format| 205.989501312 | 1-2 }} ft)</td></tr><tr valign="top"><td>Depth:</td><td> 29.6243 m ([[Category:Pages with bad rounding precision]]Bad rounding here{{#invoke:Math|precision_format| 97.1925853018 | 1-1 }} ft)</td></tr><tr valign="top"><td>Deck clearance:</td><td> 9,436.1 mm ([[Category:Pages with bad rounding precision]]Bad rounding here{{#invoke:Math|precision_format| 371.5 | 1-2 }} in)</td></tr><tr valign="top"><td>Speed:</td><td> 12 kts</td></tr><tr valign="top"><td>Crew:</td><td> 133</td></tr><tr valign="top"><td>Notes:</td><td> </td></tr> |} '''''Q4000''''' is a unique multi-purpose oil field construction and intervention vessel commissioned in 1999 by [[Cal Dive International]], and was built at the [[Keppel Corporation|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. She is operated by Helix Energy Solutions Group. The original Q4000 concept was conceived and is owned by SPD/McClure. The design was later modified by Bennett & Associates LLC who was selected to develop both the Basic and Detailed design. 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. Specifications The design of the Q4000 includes the following features: Dynamic positioning with 6 azimuthing thrusters A multi-purpose Huisman designed three-sided tower capable of fulfilling all traditional derrick roles Two Huisman cranes with lifting capacities of 160 and 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 Tonnes Deepwater Horizon spill response Q4000 and Discoverer Enterprise flare off gas at the site of drilling operations at the Deepwater Horizon response site in the Gulf of Mexico at night 8 July 2010. 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. After removal of the failed riser and drill pipe on the Horizon BOP, a capping stack sealed the top of the well on July 15, 2010, stopping the flow of oil into the Gulf of Mexico. The Q4000 was used in a successful static kill procedure, where mud, followed by cement, was pumped into the well, sealing the leak at the source. The Horizon BOP was secured on the deck of the Q4000 around 10:20pm on September 4, 2010. The failed Horizon BOP was collected as key evidence into the investigation of the causes of the Deepwater Horizon Oil Spill. References External links Q4000 current position at VesselTracker ru:Q4000