With the deepest installations in nearly every subsea oilfield in the world, FMC’s TLP and Spar systems meet the most advanced technical requirements. As certain platforms are designed to move with water action, every element connected to the sea floor becomes an integral part of the system, requiring specialized solutions. Whether you decide to complete surface or subsea, FMC can design a solution that caters to your needs. These direct vertical access (DVA) wellheads use a combination of surface and subsea technology that consists of the following:

• Floating platform is a deepwater alternative to a fixed platform
• Tension Leg Platform (TLP), Spar, DDCV, Dry Tree Semisubmersible, others
• Subsea wellhead at mudline
• Wells either predrilled with MODU or drilled from floating platform
• Top tensioned riser (TTR) system that extends from the subsea wellhead up to a tensioning system at the surface
• Dry surface x-mas tree system

Short flexible flowlines and umbilicals connect tree to platform
Durability is a key factor when purchasing DVA equipment, which is why FMC designs this product line using our most stringently tested and API 6A qualified products. Straight-bore metal seals and Speedloc clamps, for example, provide full metal-to-metal sealing in the harshest environments. The specialized plug and lubricator adapter with this wellhead provide simple vertical access to the gas-lift string, in addition to providing a 20-year design life.

DVA Well Systems:
http://www.fmctechnologies.com/Subsea/Products/SubseaSystems/DVA.aspx