Emergency release system for output hose and use method thereof

Abstract

The invention discloses an emergency release system for an output hose and a use method thereof, which comprises an emergency release speed reduction device, the emergency release speed reduction device comprises a hydraulic winch, a mooring rope, a rigging and a hydraulic power unit, the hydraulic winch is arranged on an offshore production platform, the inner end of the mooring rope is fixed in the hydraulic winch, the rigging is arranged at the outer end of the mooring rope, The rigging is connected with the output hose, and the hydraulic power unit is connected with the hydraulic winch and drives the hydraulic winch to release and recover a cable; when the output hose is released emergently, the mooring rope and the rigging limit the free falling direction of the output hose, and the hydraulic winch limits the flow of hydraulic oil and limits the lowering speed of the mooring rope on the hydraulic winch, so that the effect of limiting the falling speed of the output hose is achieved, and the impact between the output hose and seawater is reduced; the problem that the speed is too high in the emergency releasing and falling process of the output hose is solved, the output hose and offshore facilities are prevented from being damaged, the risk of oil and gas output operation is reduced, and therefore the economic cost is reduced.

Description

technical field [0001] The invention relates to the field of offshore oil engineering, in particular to an emergency release system for an external delivery hose and a method for using it. Background technique [0002] It is a common way of offshore oil and gas export to transport the oil and gas extracted from offshore facilities to the export tanker through the export hose, and then the export tanker transports the oil and gas to the destination. The export hose is connected between the offshore facility (usually an offshore production platform) and the export tanker, and the length of the export hose is relatively large, about 200m. When carrying out offshore oil and gas export operations, the hoses connected between the offshore production platform and the export tanker need to be disconnected in case of emergency. [0003] The external transportation hose falls from a high position and slaps the water surface, which may easily damage the hose and cause oil and gas leak...

AI Technical Summary

Problems solved by technology

However, for the column-type semi-submersible platform or other offshore production platforms where the connection interface between the outgoing hose and the outgoing hose drum is set at a higher position, when the outgoing hose is released in an emergency and falls freely, the hose is prone to breakage and offshore failure. Accidents in which the device was struck

However, there are currently no countermeasures in the industry to prevent such accidents from happening.

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