Cal Dive and FMC announce intervention riser agreement News
// March 9, 2001
Cal Dive International and the Energy Systems business of FMC Corporation have entered into an agreement to develop and jointly fund a new intervention riser system that will be rated to operate in water depths of up to 10,000 feet. It will also be the first in the industry rated for working pressures up to 15,000 psi, claim the companies.
The riser system, to be deployed from Cal Dive's newbuild Q4000, will be able to intervene in the horizontal and vertical subsea trees of all manufacturers. It utilises a modular design concept, which includes MUX controls and dual bore features for access to annulus and production bores in subsea wells.
Using a composite reelable 2in flexipipe, the riser system allows for the circulation of fluids, flow testing and hydrate remediation of subsea wells. The riser's slim bore also allows it to be handled more easily and run much faster than a conventionalmarine riser system. The new system can, for example, be latched onto a subsea tree within six hours of arriving on station.
The new system will be ready for deployment when the Q4000 is commissioned in the third quarter this year.
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