Dry towing transporting float-on process of floating production, storage and offloading device

Abstract

The invention provides a dry towing transporting float-on process of a floating production, storage and offloading device. The dry towing transporting float-on process of the floating production, storage and offloading device comprises the following steps of 1, doing preparation work before loading of a semi-submerged ship; 2, wetly towing the floating production, storage and offloading device toreach a float-on location; 3, carrying out longitudinal shipment float-on operation on the floating production, storage and offloading device; and 4, carrying out shipment fixing and dry towing transportation on the floating production, storage and offloading device. Under the cooperation of a semi-submerged ship buoyancy tank winch cable and a harbour tugboat, the floating production, storage andoffloading device is towed to be kept stable after being reaching a preset shipment position; by using laser alignment to monitor relative positions of the semi-submerged ship and the floating production, storage and offloading device, the semi-submerged ship floats to support the floating production, storage and offloading device till reaching transporting draft; by welding a shipment fixing piece, the dry towing transporting float-on operation of the floating production, storage and offloading device is finished, and the semi-submerged ship carries the floating production, storage and offloading device to realize dry towing transporting sailing; the floating production, storage and offloading device is transported by using the semi-submerged ship; the working period is shortened, the engineering cost is saved, and the safety is good.

Description

Technical field [0001] The invention relates to a dry towing transportation and floating technology for a floating production, storage and unloading device. Background technique [0002] At present, the floating process for semi-submersible vessels to load floating production, storage and offloading equipment is usually carried out by horizontal loading. The semi-submersible vessel drops a single anchor and dives to a fixed position, and the floating production, storage and offloading equipment is to be installed. Parallel to the longitudinal direction of the semi-submersible ship, the floating production storage and unloading device is towed to a suitable position by the winch cable on the semi-submersible ship, and then the semi-submersible ship floats to complete the loading. However, due to the relative position of the semi-submersible ship’s bow and pontoon structure, the length of the floating production storage and unloading device loaded in this way is limited. For "ultra...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to overcome the above-mentioned defects existing in the prior art, and to provide a floating production, storage and unloading device dry towing transportation floating process, to realize the ultra-long floating production, storage and unloading device to be transported by a semi-submersible ship, and to solve the problem of The relative position between the FPSO and the semi-submersible vessel is narrow, and the protruding part of the FPSO hull and the floating guide device are jammed, shortening the construction period, saving engineering costs, and improving engineering efficiency and safety

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