Installation for the extraction of fluid from an expanse of water, and associated method

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 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 means for holding 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 or each 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,