Modular near-surface completion system.

摘要

A modular near-surface completion system that positions the production wellheads (28) in a quiescent zone beneath significant wave activity yet within reach of divers for maintenance and inspection. Each subsea well (14) is provided with a) its own riser (12), b) a riser tensioning buoy (16) and c) a production well tree (70) mounted atop the riser buoy. Produced fluids are transmitted from the well tree to the floating production platform (22) by means of flexible risers (26) suspended in a catenary loop of sufficient length to permit the platform to be maneuvered to position it for drilling or workover of any of the plurality of templates (24) it services.