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Apparatus and method for deploying object or load on seabed

A technology of equipment and load, applied in drilling equipment, underwater operation equipment, earth-moving drilling, etc., can solve problems such as expensive

Inactive Publication Date: 2003-09-24
弗朗索瓦·贝尔纳德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It is expensive to use this method

Method used

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  • Apparatus and method for deploying object or load on seabed
  • Apparatus and method for deploying object or load on seabed
  • Apparatus and method for deploying object or load on seabed

Examples

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Embodiment Construction

[0047] Figure 1 shows an FPSO (Floating, Production, Storage and Offloading Vessel) 1 with a rotating production tower 11 from which a standpipe 2 is detached, said standpipe 2 being connected to its standpipe base 3 on the seabed. During its productive life, the FPSO remains moored to the seabed 4 by means of mooring legs 5 secured by anchors 6 , which correspond to a permissible dynamic excursion range for the FPSO.

[0048] According to FIG. 1 , oil and gas production by means of a production vessel 1 requires the positioning of several relatively heavy objects on the seabed 4 with a relatively high degree of precision.

[0049] In order to achieve a proper and safe anchoring by the mooring legs 5, it is required that the mooring legs 5 have substantially the same length. In practice, for this application, an anchor of 50 tons or more can be used, which is placed on the seabed 4 with an accuracy of within a few meters. In addition, not only is the anchor 6 very heavy, but ...

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PUM

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Abstract

The present disclosure relates to a method and an apparatus for deploying an object or load on the seabed, the object or load being coupled to lifting means, such as a heavy wire cable, thereby enabling the object or load to be lifted from a The ship is sunk onto the seabed, the apparatus comprising a body having means for releasably securing the object or load to the body, and propulsion means for moving the body in the sea, wherein the propulsion means are offset for releasable The means for releasably securing the object or load is positioned to enable rotational control of the lifting means when using the propulsion means.

Description

technical field [0001] The present invention relates to an apparatus for deploying a load on the seabed, the load being coupled to lifting means, such as a heavy steel cable, so as to be able to lower the load from a ship onto the seabed, the apparatus comprising a body , the body has means for releasably securing the load to the body, and propulsion means for moving the body in the sea, the propulsion means comprising a first set of propellers offset from the Device positioning. Background technique [0002] The present invention relates to a guidance, control and positioning system for use during deployment / retrieval of loads (seals) of not less than ±1000 tons on the seabed at great depths. Structurally, the system includes a main cabin and an auxiliary cabin interconnected by a frame. [0003] Due to its function, the frame of the system can be clamped directly to a load, or alternatively to any lifting device, thereby securing the load (sealing device) to be deployed....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B21/22B63C11/42E21B41/04B63B35/00B63G8/42G01S5/14
CPCB63B21/22B63C11/42E21B19/002E21B41/04
Inventor 弗朗索瓦·贝尔纳德
Owner 弗朗索瓦·贝尔纳德