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Guided gas cylinder balanced submarine pipeline access device and method

A technology for subsea pipelines and access devices, used in pipeline laying and maintenance, pipes/pipe joints/fittings, pipes, etc.

Active Publication Date: 2017-12-29
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to effectively solve the access problem of the submarine pipeline and overcome the defects and deficiencies existing in the existing land connection technology and operation scheme, the object of the present invention is to provide a submarine pipeline access device and its access method

Method used

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  • Guided gas cylinder balanced submarine pipeline access device and method
  • Guided gas cylinder balanced submarine pipeline access device and method
  • Guided gas cylinder balanced submarine pipeline access device and method

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Embodiment Construction

[0043] exist figure 1 and figure 2 Among them, the guided air cylinder balanced submarine pipeline access device is mainly composed of an air cylinder 1, a hoisting rope 2, a guide 3, a guide rigging 4, a hydraulic pusher 5, a sea pipe connector 6 and a hole opener 7, Its subsea pipeline access method sequentially implements pipe section prefabrication and measurement operations, guide rigging 4 positioning operations, guided gas cylinder 1 balanced hoisting and centering operations, gas cylinder 1 balanced docking and drilling operations, gas cylinder 1 balanced recovery operations and connection. The whole set of operation process for the connection operation of the pipe entry section, and thus the rapid connection technology of the subsea pipeline 8 of the underwater production system has been developed.

[0044] exist figure 1 and figure 2 Among them, before the subsea pipeline access device is assembled, the outer surfaces of the gas cylinder 1, the subsea pipeline a...

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Abstract

The invention provides a guiding type gas cylinder balanced submarine pipeline access device and method, which are applied to the access operation of the submarine pipeline. The submarine pipeline access device is based on the symmetrical arrangement of guides on both sides of the gas cylinder and the guiding effect of the guiding rigging, the balance of the horizontal gas cylinder and the propulsion power provided by the hydraulic pusher, combined with the split type of the sea pipe connector. The thick-walled cylinder structure implements the prefabrication and drilling of submarine pipelines and the operation process of balanced centering, docking and connection of guided gas cylinders; the gas cylinder adopts a horizontal multi-cylinder series structure to balance the waves and internal waves transmitted by the hoisting rope The guider combined with the guide rigging realizes the guiding function and accurately guides the access device to the opening of the submarine pipeline. In the centering, the sea pipe connector provides a fulcrum for the hole saw and acts as a tee and serves as the access point of the new submarine pipeline, and the hole saw completes the drilling of the sea pipe.

Description

technical field [0001] The invention relates to a device and a method for connecting a submarine pipeline in an underwater production system in the field of marine engineering, in particular to a device for connecting a submarine pipeline with a guided gas cylinder balance and an operation method thereof. Background technique [0002] With the development of offshore oil and gas fields, the connection of newly developed oil fields relying on the original oil fields or the rolling expansion projects in the middle and later stages of oil field development often require the connection between old and new pipelines. [0003] At present, the connection operation of submarine pipelines is mainly designed and constructed by foreign parties. The connection operation of onshore process pipelines that can be used for reference includes conventional connection operations and pressure-drilling connection technology. The first operation requires that the original process pipeline must be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/16F16L1/20F16L1/235F16L41/04
CPCF16L1/16F16L1/20F16L1/235F16L41/04
Inventor 刘新福周超刘春花许晨郭江艳裴晓梅
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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