instalação de coluna ascendente construída com um conduto flexível de tipo não ligado e processo de colocação no lugar de uma instalação de coluna ascendente

The system has a rough-bore type flexible unbonded conduit (10) with a polymeric internal sealed sheath e.g. extruded polymer tube. A flexible base connection conduit (30) and a flexible top connection conduit (12) e.g. jumper, connect a riser (1) with exploitation systems (3) and submarine production systems (2). A base of the riser has 1000 meter depth and undergoes a calculatable maximum reverse end cap effect. A submerged buoy (8) is dimensioned for driving the reaction voltage (T) in the riser base, where the voltage is higher than 50 percentage of the effect developed in the riser base. An independent claim is also included for a method for setting a flexible riser system realized with a rough-bore type flexible unbonded conduit.