Patent ID: 8881826

Claim:
Installation for the extraction of fluid from an expanse of water, comprising: an upper structure extending at least in part above the surface of the expanse of water; at least one flexible hose extending through the expanse of water, the flexible hose comprising a connection head for connection to a collector placed on the upper structure, the flexible hose being capable of moving through the expanse of water between an upper configuration in which it is connected to the collector and a lower disconnected configuration; wherein the installation comprises: a lower structure which is completely immersed in the expanse of water and has a base extending at a distance from the bottom of the expanse of water and an arrangement to hold the base in position relative to the bottom of the expanse of water, the upper structure being capable of moving relative to the lower structure between an extraction position located substantially opposite and above the lower structure and an evacuation position located at a distance from the lower structure, the base defining for the at least one flexible hose: at least a passage for the travel of the flexible hose as it moves between the upper connected configuration and the lower disconnected configuration at least a stop for retaining the connection head, the stop being disposed in the travel passage, to hold the connection head at a distance from the bottom of the expanse of water in the lower disconnected configuration, wherein the base defines an upper surface for securing the upper structure, the upper surface being placed at a depth greater than 150 m at least in the extraction position and in the evacuation position, wherein in the extraction position, the upper structure has a lower surface, which is supported on the upper surface of the lower structure at a depth greater than 150m.