Guide type air cylinder balance submarine pipeline access device and method

A technology of submarine pipelines and access devices, applied in pipeline laying and maintenance, pipes/pipe joints/fittings, pipes, etc.

Active Publication Date: 2016-11-16
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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  • Guide type air cylinder balance submarine pipeline access device and method
  • Guide type air cylinder balance submarine pipeline access device and method
  • Guide type air cylinder balance 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 guide type air cylinder balance submarine pipeline access device and method. The guide type air cylinder balance submarine pipeline access device and method are applied to access work of a submarine pipeline. The submarine pipeline access device implements prefabricating and drilling of the submarine pipeline and the work flow of guide type air cylinder balance centering, butt joint and access according to the guiding effect of guiders and hoisting riggings symmetrically distributed on the two sides of an air cylinder, the balance effect of the horizontal air cylinder and the propelling power provided by hydraulic pushers and through the combination with the split type thick wall cylinder body structure of a submarine pipeline access apparatus. The horizontal multi-cylinder-body series connection structure is adopted for the air cylinder so that the oscillation loads, transmitted through hoisting ropes, of sea waves and internal waves can be balanced. By means of combination of the guiders and the guide riggings, the guide action is achieved, and the access device is accurately guided to a hole forming portion of the submarine pipeline. By means of the hydraulic pushers, fine adjusting and centering of the submarine pipeline access device and the access pipe section hoisting position are achieved. The submarine pipeline access apparatus provides a fulcrum for a hole forming device, plays a role of a tee joint and is used as the access point of a new submarine pipeline. The hole forming device completes the hole forming work of the submarine pipeline.

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 Applications(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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