semisubmersible rig

semisubmersible rig

n
(Mining & Quarrying) (in the oil industry) a type of drilling platform that floats supported by underwater pontoons, with much of its structure below the water line for stability in high winds: usually used only for exploratory drilling for oil or gas. Sometimes shortened to: semisubmersible
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
In conjunction , the company said it has signed an agreement with Petrobras for contracts on the semisubmersible rig Ocean Alliance and the drillship Ocean Clipper to be ended as of 30 October 2015, ahead of their original end dates, in return for an additional 875 days of contract term on the semisubmersible rig Ocean Courage.
"By opting for a complete solution from a single supplier taking full responsibility for integrating all the systems into an efficient, optimized solution, the yards completion risks of this complex semisubmersible rig are minimized and the owners can expect maximum efficiency with optimal lifecycle costs," says Magnus Miemois, Vice President Wartsila Ship Power Solutions.
20 October 2011 - Oslo-listed drilling rig contractor Awilco Drilling Plc (OSL:AWDR) said today it had signed a letter of intent (LOI), with an estimated value of USD15.7m, for the semisubmersible rig WilHunter.
Keppel Offshore & Marine has won two contracts, one to convert an FPSO and the other to repair a semisubmersible rig for projects offshore Brazil.
For instance, he cites a lease CAMAC signed in December for a semisubmersible rig that can drill as deep as 12,000 feet to the seabed.
The father-of-two was carrying out maintenance work on the semisubmersible rig MSV Regalia.
Drilling of a second well began in April 1998 to a depth of 4,000 metres in 176 metres of water and was to take 85 days to complete using the Dada Gorgud semisubmersible rig. A third
According to the company, the Noble Paul Wolff is a dynamically positioned semisubmersible rig, which operating off the coast of Brazil.
Diamond Offshore Drilling Inc (NYSE:DO), provider of contract drilling services, on Tuesday revealed that its subsidiary signed a contract with Jurong Shipyard of Singapore to build a moored semisubmersible rig with total project value of USD370m.