Laying and mounting method for deepwater submarine cable broadside launching

A technology of submarine cables and installation methods, which is applied in the directions of cable laying ships, cable laying equipment, transportation and packaging, etc., to achieve the effect of precise placement and laying

Active Publication Date: 2021-07-23
SHENZHEN OFFSHORE OIL ENG UNDERWATER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The complex configuration of submarine cables and the integration of multiple structures require the use of more professional techniques and more appropriate methods for installation work, which is also an urgent problem to be solved at present

Method used

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  • Laying and mounting method for deepwater submarine cable broadside launching
  • Laying and mounting method for deepwater submarine cable broadside launching
  • Laying and mounting method for deepwater submarine cable broadside launching

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Embodiment Construction

[0046] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0047] The method for laying and installing the side launch of deep-water submarine cables of the present invention may include the following steps:

[0048] S1. The submarine cable installation vessel 1 transports the cable reel 2 with the submarine cable 10 to the installation site.

[0049] refer to figure 1 , the submarine cable installation operation ship 1 is provided with a horizontal laying system, a main crane 3 and an auxiliary crane 4, etc.; the horizontal laying system includes a vertical guide unit 5, a horizontal guide unit 6, a tensioner 7. Water entry bridge 8 and outboard working platform 9. The submarine cable (submarine cable) 10 is stored on the cable reel 2 in a coiled manner; if Figure 9 As sho...

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PUM

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Abstract

The invention discloses a laying and mounting method for deepwater submarine cable broadside launching. The laying and mounting method comprises the steps: S1, enabling a submarine cable mounting workboat to transport submarine cables stored by a cable reel to a mounting site; S2, hoisting the underwater power distribution unit at the head end of the submarine cable and then placing the underwater power distribution unit above the outboard working platform; S3, putting the underwater power distribution unit into water, and putting the underwater power distribution unit into an underwater power distribution system base plate on a seabed; S4, horizontally laying submarine cables at the rear end of the underwater power distribution unit on the seabed; S5, hoisting and hanging the tail end of the submarine cable on an outboard working platform; S6, enabling the floating production storage and offloading oil tanker to lower a steel wire rope; S7, enabling the steel wire rope to be connected with the hoisting rigging of the main crane, and connecting the steel wire rope with the tail end of the submarine cable after the hoisting rigging is recycled to the outboard working platform; S8, hoisting and putting the tail end of the submarine cable and the steel wire rope into water, lifting the winch to recycle the steel wire rope, and lifting the tail end of the submarine cable to the floating type production storage and offloading oil tanker. According to the invention, the submarine cable can be accurately positioned and laid underwater.

Description

technical field [0001] The invention relates to the technical field of offshore oil engineering, in particular to a method for laying and installing deep-water submarine cable side launching. Background technique [0002] Subsea production systems in the oil and gas industry consume large amounts of electrical energy to pump crude oil out. Electricity is used for a range of activities, including driving oil pumps to extract crude oil, secondary water injection to enhance oil recovery, heating output fluids to separate oil, gas, and water, powering compressors and pumps for delivery to refineries or onshore, and powering various This platform provides electrical energy for the working and living areas of the platform. Based on the above reasons, more and more submarine cables need to be installed to solve power supply problems in different fields. However, due to the different fields of use, the structure and complexity of the cables have brought special challenges to the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B35/04B63B27/10H02G1/10
CPCB63B35/04B63B27/10H02G1/10
Inventor 刘耀江齐金龙石锦坤高超何昱亮李国毅刘书胜陈晓东黄鑫王伟马庆林张云鹏
Owner SHENZHEN OFFSHORE OIL ENG UNDERWATER TECH
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