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Beginning in 1970 the vessel served as an amine absorber tower, used to strip hydrogen sulfide from a process stream of propane and butane. In 1974, plant inspection identified hydrogen blisters and laminations in the shell of the vessel, and the refinery replaced several meters of the lower shell section using manual metal arc welding.
Well intervention vessel Skandi Constructor. A well intervention, or well work, is any operation carried out on an oil or gas well during, or at the end of, its productive life that alters the state of the well or well geometry, provides well diagnostics, or manages the production of the well.
In 2012, the Well Enhancer completed the first well intervention work ever done in West Africa from a mono-hull vessel instead of a rig or semi-submersible. [3] The vessel is owned by Helix Energy Solutions Group and operated by the company's well intervention business unit, Helix Well Ops. The mono-hull vessel was designed to provide a stable ...
In 1996 the Seawell performed what is thought to be the first ever installation of a replacement subsea tree from a Dynamically Positioned mono-hull vessel anywhere in the world. [2] In 1998 the Seawell completed the world's first ever wireline intervention on a horizontal subsea tree on Amoco Exploration's Arkwright Field in the North Sea. [ 3 ]
Q4000 is a multi-purpose oil field construction and intervention vessel ordered in 1999 by Cal Dive International, and was built at the Keppel AmFELS shipyard in Brownsville, Texas for $180 million. She was delivered in 2002 and operates under the flag of the United States. [ 3 ]
In 2002, The world's first deepsea well intervention semi-submersible, the Q4000, is launched into service in the Gulf of Mexico. [ 7 ] In July of that same year, the company changed its corporate name to Helix Energy Solutions Group [ 8 ] and moved its stock listing from NASDAQ to the New York Stock Exchange under the new ticker symbol, HLX.
An Inspection, Maintenance and Repair (IMR) vessel is a highly technical vessel, deployed in the offshore industry. Their primary task comprises the inspection and repair of subsea facilities and installations. These vessels are often equipped for other tasks including diving support, scale treatment and light construction work.
Parties to the convention are required to instruct its maritime inspection vessels or aircraft and other appropriate services or officials to report without delay any observed event at sea or at a sea port or oil handling facility involving a discharge of oil or the presence of oil to the competent national authority or to the nearest coastal ...