摘要:
The invention relates to a floating craft such as a ship that includes at least one tank of a polluting fluid and at least one rescue connector communicating with the tank. The floating craft such as a ship is characterized in that the connector is connected to the tank by a linking mechanism, at least a portion of which is dedicated to at least one function that is operational outside rescue situations.
摘要:
A device including a tank adapted to be arranged on a sea bottom having a filling opening is provided. The tank includes an inflatable bladder with an elongated shape, made from a flexible material, provided with the filling opening at one end and equipped with connecting members. At least one cable extends over at least the largest length of the bladder and is connected thereto by the connecting members. The present invention is applicable to the treatment of uncontrolled eruptions of offshore oil wells.
摘要:
Large-volume oil containment tents and other flexible structures are provided, especially using an oil-impermeable, water-permeable material. A relatively light-weight flexible structure can be arrayed at sea surface, and dispatched downwards to deepwater such as by adding weighting pellets in hollow region(s). An off-the-shelf oil containment product for tenting-over a deepwater, high-pressure oil emergency is provided. When a deepwater oil emergency occurs, the off-the-shelf, relatively light-weight containment product can be transported immediately to the surface coordinates above the emergency, and deployed rapidly by emergency responders who have been able to previously practice using the containment product.
摘要:
A method and apparatus for securing a conduit to relatively inaccessible structures, for example, oil tanks on submerged ships. The method involves providing a conduit with a neck, temporarily securing the conduit to the surface, for example by means of magnets, etc, drilling a hole through the structure and passing the neck of the conduit through the hole in the structure, and passing an expander device through the neck of the conduit through the hole in the structure to widen a portion of the internal passage of the conduit in the region of the neck.
摘要:
A remotely controlled apparatus for transporting liquid, such as oil, toxic chemicals, or the like, in a tank of a sunken ship to a floating body, without leakage and a method performed by the apparatus are disclosed. An underwater recovery device (100) of the apparatus includes a supporting frame (10), to which a plurality of devices including a linkage (111) are fixed, chucking devices (20) for fixing the underwater recovery device (100) to the sunken ship (500), a grabber (30) for attaching the base plate (80) to the supporting frame (10), DTB systems 40 for attaching the base plate (80) to the sunken ship (500), thrusters (50) for providing a propulsive force so as to attach the supporting frame (10) to the sunken ship (500), a hole cutter (60) for drilling a hole for the recovery of the liquid, and a liquid recovery device (70) for recovering the liquid through the hole drilled in the sunken ship (500).
摘要:
The invention relates to a method of immobilising a hydrocarbon contained inside a container submerged in the sea floor or of transporting said hydrocarbon to the surface using the pressure gradient between the pressure in the sea floor and the pressure generated at the lower opening of a hydrostatic column in which the fluid used as the supercritical fluid is gasified when same moves to non-extreme pressure conditions.
摘要:
An apparatus and process for recovery of oil from submerged tanks is disclosed together with a specialized cutting tool for attaching to and cutting an entry aperture into a submerged tank. The apparatus includes a surface floating vessel having a conduit (preferably conventionally coiled tubing) for receiving oil at the submerged tank and discharging the oil into the vessel. The vessel includes a source of hydraulic power for the remote operation of hydraulic equipment at the site of the submerged tank. Two points of entry are made in each tank for the purpose of equilibrating pressure within the tank; in one point of entry fluid is pumped into the tank to replace the fluid that is removed. At the remaining point of entry, fluid is evacuated to a positive displacement pump, typically of the Moyno.RTM. variety. This pump discharges fluid received from the tank with sufficient pressure to overcome viscosity-induced friction. A specialized tool is used for gaining entry into the tank, including an electromagnetic spool for making initial attachment, and a hydraulically powered abrading cylindrical tool for cutting through the steel of the tank for attaining entry. The process of attachment includes use of a remote operated vehicle to locate the tool on the submerged tank, initial fastening utilizing the electromagnetic spool, cutting of the steel to make entry into the tank, followed by either injection or discharge of fluid to the tank from the point of entry.
摘要:
A system which can be set up in emergencies to moor an offloading vessel and transfer oil between it and a seabed pipeline, as to remove oil from a grounded tanker or to deliver fuel to the shore under hostile or emergency conditions. The system includes a barge containing a fluid swivel as well as a mooring buoy and buoy-holding chain. The barge can be towed to a desired location and pipes and hoses connected to the fluid swivel, and the barge then can be sunk to the seabed. Upon sinking, the barge is already connected to the seabed pipeline and to hoses that extend from the barge to the sea surface to connect to an offloading vessel, as well as being connected through a chain to a buoy floating at the sea surface which has a hawser for mooring the vessel. A vessel can be utilized to tow out the seabed pipeline, to facilitate installation of the pipeline as to enable connection of the pipeline to the fluid swivel on the barge prior to sinking the barge.
摘要:
A device (10) for collecting and temporarily storing fluids (16) escaping from an underwater source (12, 64) and having lower density than surrounding water includes a collector (18) placed over the underwater source for collecting the escaping fluids, a riser tube (20) for transferring the collected fluids together towards the surface; and a buoyant buffer reservoir (22) maintained submerged under the surface and having an open-bottom chamber (30) for storage of the fluids. The riser tube has flow restrictors has flow restrictors comprising choke disks (58, 58′) arranged in its interior for restricting the flow of the fluids. The flow restrictors are arranged along the length of the riser tube. The buffer reservoir has arranged in its chamber a separator vessel (32) for separating gas from the fluids. The riser tube opens into the interior of the separator for discharging the fluids.
摘要:
The present invention generally relates to containment and control of an oil spill caused by a damaged or broken riser in deepwater. More specifically, the present invention relates to a reusable unit that will contain oil spills to a specific location and will also allow oil to be harvested as it flows to the top of the unit while minimizing or even eliminating any environmental clean-up cost. The unit of the present invention is dropped over a damaged or broken riser in a closed positin, the unit is released and stabilized in sections until the surface is reached and the containment unit is completely erected.