Harvey Bisso Subsea has completed its first subsea project performing saturation diving work in 105 metres of water at ATP Oil & Gas Corporation’s deepwater platform in Grand Isle block 115.
Harvey Bisso Subsea used the ‘Harvey Discovery’, a DP2 certified multi-purpose support vessel outfitted with a 300-metre, portable twelve-man saturation diving system, to perform the operation.
“This was the first of what will be many successful diving projects as we continue to expand the level of our subsea services,” said Tommy Gibilterra, Vice President operations for Bisso Marine.
Harvey Bisso Subsea is a joint venture between Harvey Gulf International Marine and Bisso Marine.
HARVEY BISSO SUBSEA has launched operations to provide subsea services to the energy and maritime industries. The new subsea venture combines the expertise, resources and experience of BISSO MARINE and HARVEY GULF INTERNATIONAL MARINE. The centerpiece of the venture is a new, fully-classed 12-man Saturation Diving System with a working depth of 1,000 feet (300 meters). The portable SAT system will be deployed from the HARVEY DISCOVERY, a 265 x 58-foot, DP2 certified multi-purpose support vessel outfitted with a 65-ton crane and moon pool. The vessel provides accommodations for up to 53.
The new SAT System features a gas reclaim system, which allows expelled gases to be circulated and recycled. It has a dual-lock, six-man deck decompression chamber, a 12-man launch-able flyaway hyperbaric rescue chamber, a dual-lock, six-man come-out chamber and a three-man diving bell.
The portable diving system has a bell launch and recovery system, a saturation dive control van and two machinery vans. It has a 12-ton main bell winch and a six-ton guide wire winch. The bell umbilical is 1,150 feet long and the bell handling system is a hydraulically actuated A-frame. The system is fully classed by ABS and IMCA compliant.
Source: harveybissosubsea,April 23, 2010;