A device (10) for detecting a signal of interest in order to locate an underwater source of the signal. The device includes a receiver (13) configured to detect the signal of interest, an actuator (14) configured to allow at least a portion of the detection device (10) to move towards a zone indicating a result of detection of the signal of interest in response to the receiver being operated, and an emitter (15) configured to indicate the result of detection of the signal of interest.

A device (10) for detecting a signal of interest in order to locate an underwater source of the signal. The device includes a receiver (13) configured to detect the signal of interest, an actuator (14) configured to allow at least a portion of the detection device (10) to move towards a zone indicating a result of detection of the signal of interest in response to the receiver being operated, and an emitter (15) configured to indicate the result of detection of the signal of interest.

A submersible buoy comprising a body defining a space; a gas compressor in fluid communication with a pressure vessel, where the gas compressor is capable of releasing gas from the pressure vessel into the space and of sucking gas out of the space into the pressure vessel; a battery that powers the gas compressor; and a controller in electronic communication with the gas compressor, where the controller controls the operations of the gas compressor.

A submersible buoy comprising a body defining a space; a gas compressor in fluid communication with a pressure vessel, where the gas compressor is capable of releasing gas from the pressure vessel into the space and of sucking gas out of the space into the pressure vessel; a battery that powers the gas compressor; and a controller in electronic communication with the gas compressor, where the controller controls the operations of the gas compressor.

A method for locating drifting gear, including at least the following steps: —anchoring a submerged beacon to one of the ends of the drifting gear, the submerged beacon being equipped to rise to the surface and including a casing enclosing a transceiver of a radio-acoustic signal associated with a control unit, and a release mechanism allowing the beacon to rise in response to reception of a code and an order by the control unit, —geolocating the start point of the drifting gear, in order to allow the fisherman to delineate the region of its location by estimating the drift of his drifting gear from the start point so as to direct the search for the drifting gear in the estimated direction, —locating the drifting gear using the submerged beacon.

A method for locating drifting gear, including at least the following steps: —anchoring a submerged beacon to one of the ends of the drifting gear, the submerged beacon being equipped to rise to the surface and including a casing enclosing a transceiver of a radio-acoustic signal associated with a control unit, and a release mechanism allowing the beacon to rise in response to reception of a code and an order by the control unit, —geolocating the start point of the drifting gear, in order to allow the fisherman to delineate the region of its location by estimating the drift of his drifting gear from the start point so as to direct the search for the drifting gear in the estimated direction, —locating the drifting gear using the submerged beacon.

A subsea fluids storage facility comprises a tank (11) for holding and separating fluids which is equipped with ballast capacity (14) and a separable base (12) to be deployed upon the seabed in shallow or deep water, and the storage facility is connectable to a surface production facility, especially a buoy (24) for processing fluids. In deep water the tank (11) is held at a depth above the base (12) for temperature controlled stabilization of produced oil in the tank (11).

A pressurization processing system that performs pressurization processing on a target by immersing the target in the sea or a lake, includes a housing body that is configured to house the target, a buoyancy body that is configured to float the housing body, a weight body that has a specific gravity greater than that of seawater or lake water, and a separation mechanism that separably connects the housing body and the weight body. In the system, the buoyancy body includes a housing bag having water permeability, and the housing bag houses a plurality of hollow glass spheres, and is immersed in the seawater or the lake water so that a space between the plurality of hollow glass spheres housed in the housing bag is filled with the seawater or the lake water.

A pressurization processing system that performs pressurization processing on a target by immersing the target in the sea or a lake, includes a housing body that is configured to house the target, a buoyancy body that is configured to float the housing body, a weight body that has a specific gravity greater than that of seawater or lake water, and a separation mechanism that separably connects the housing body and the weight body. In the system, the buoyancy body includes a housing bag having water permeability, and the housing bag houses a plurality of hollow glass spheres, and is immersed in the seawater or the lake water so that a space between the plurality of hollow glass spheres housed in the housing bag is filled with the seawater or the lake water.

The present invention relates to an automatic falling-off device for a self-sinking and floating type profiling float diversion shell and the diversion shell. An automatic falling-off device for a self-sinking and floating type profiling float diversion shell, comprises a locking device and an unhooking device; the locking device comprises a locking hook plate and a locking core plate; the locking hook plate is provided on one half diversion shell, and the locking core plate is fixed on another half diversion shell; a locking hook at a front end of the locking hook plate fits with a locking ring at a front end of the locking core plate for locking; the unhooking device comprises a base and a buoyancy airbag; and the base is provided below the locking hook plate, and the buoyancy airbag is mounted between the base and the locking hook plate.