Bottoming analysis method of dynamic positioning barge under ultra-shallow water floatover installation operation

A technology of dynamic positioning and analysis methods, which is applied in ship construction, ship design, ship parts, etc., and can solve problems such as threats to personnel safety and economic losses

Active Publication Date: 2021-05-18
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In ultra-shallow water conditions, the distance between the bottom of a dynamically positioned barge for floatover installation and the seabed is very small, once bottoming occurs, it will cause major economic losses and threaten the safety of personnel

Method used

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  • Bottoming analysis method of dynamic positioning barge under ultra-shallow water floatover installation operation
  • Bottoming analysis method of dynamic positioning barge under ultra-shallow water floatover installation operation
  • Bottoming analysis method of dynamic positioning barge under ultra-shallow water floatover installation operation

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] According to one or more embodiments, a bottoming analysis method of a dynamically positioned barge under ultra-shallow water float-over installation operations is disclosed, such as figure 1 As shown, the following steps are included:

[0021] Select the dynamic positioning barge for the floatover installation operation, and establish and obtain the corresponding basic motion model according to the parameter data of the dynamic positioning barge;

[0022] Apply the environmental force generated by the superstructure to be installed and the environmental loads in the working sea area on the basic motion model so that the basic motion model generates six degrees of freedom motion on the water surface;

[0023] Apply the control force generated by the dynamic positioning system to maintain the position of the barge on the basic motion model, and calcula...

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Abstract

The invention discloses a bottoming analysis method of a dynamic positioning barge under ultra-shallow water float-over installation operations, relates to the field of marine engineering, and solves the problem of bottom-out risks of float-over installation barges in shallow water areas. The basic motion model of the positioning barge is obtained, and the selection of the dynamic positioning barge and the parameter adjustment and setting of the fast loading module are carried out by applying the upper component and the environmental load, and through the simulation calculation of the dynamic positioning system and the fast loading module. The bottoming analysis method of dynamic positioning barge under ultra-shallow water float-over installation operation, through the simulation calculation of dynamic positioning barge, provides the basis and effective guidance for the actual ship operation, and avoids the bottoming situation.

Description

technical field [0001] The invention relates to the field of offshore engineering, in particular to a method for analyzing bottoming of a dynamically positioned barge under ultra-shallow water float-over installation operations. Background technique [0002] The jacket platform is a fixed platform widely used in the development of shallow sea oil and gas resources. The offshore installation of the upper module of the jacket platform can be completed by the float-over method, which is a method that uses a barge to transport the upper module to the installation location, and uses positioning devices (mooring, dynamic positioning, etc.) to make the upper module The horizontal relative movement between the block and the barge and the installed jacket is kept within the allowable range, and finally the barge adjusts the ballast water tank to increase the draft to lower the upper block to the platform. In ultra-shallow water conditions, the distance between the bottom of a dynami...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B71/10
CPCB63B71/10
Inventor 王磊叶昱图秦立成
Owner SHANGHAI JIAOTONG UNIV
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