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Buoy device mechanism for novel underwater suspension manifold and using method of buoy device mechanism

A suspension pipe and installation method technology, which is applied in the direction of earthwork drilling, mining fluid, wellbore/well components, etc., can solve the problems of difficult installation, inconvenient maintenance, and failure to recycle, etc., and achieve the effect of improving adaptability

Inactive Publication Date: 2020-12-15
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a buoy device mechanism for a new type of underwater suspension manifold and its use method to solve the problems of difficulty in lowering and installation, inconvenient maintenance and failure to recycle existing underwater manifolds

Method used

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  • Buoy device mechanism for novel underwater suspension manifold and using method of buoy device mechanism
  • Buoy device mechanism for novel underwater suspension manifold and using method of buoy device mechanism
  • Buoy device mechanism for novel underwater suspension manifold and using method of buoy device mechanism

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Effect test

Embodiment 1

[0034] Embodiment 1 provides a buoy device mechanism for a new type of underwater suspension manifold, using the buoy device mechanism can greatly optimize the installation and recovery of the new type of underwater suspension manifold, and realize the installation, release and recovery of the underwater suspension manifold , and its structure is described in detail below.

[0035] The buoy device mechanism includes four buoys 1, and the four buoys 1 are respectively arranged on the four corners of the main body of the underwater suspension manifold. Specifically, the four buoys 1 are installed on the four corners of the main body of the underwater suspension manifold through a mechanical structure to form an integral structure.

[0036] refer to figure 1 and 2 , each buoy 1 is provided with a plurality of buoy layers 10, and the plurality of buoy layers 10 are sequentially distributed in layers from top to bottom. In order to prevent a layer of the buoy from breaking under...

Embodiment 2

[0049] Embodiment 2 provides a new type of installation method for underwater suspension manifolds, using the buoy device mechanism provided in Embodiment 1. The installation method includes the following steps:

[0050] Floating on the sea surface: four buoys 1 are respectively installed on the four corners of the main body of the underwater suspension manifold. on the sea;

[0051] Exhaust and water filling: open the air valve 2, the compressed gas in the buoy layer 10 is discharged into the seawater through the air valve 2, and at the same time open the water valve 3, the seawater enters the buoy layer 10 through the water valve 3, and the inside of the buoy layer 10 gradually removes the gas When seawater is filled, the gravity of the buoy 1 increases until the gravity of the main body of the underwater suspension manifold and the four buoys 1 is slightly greater than the buoyancy;

[0052] Lowering to the vicinity of the working position: close the air valve 2 and water ...

Embodiment 3

[0058] Embodiment 3 provides a recovery method for a new type of underwater suspension manifold. By using the buoy device mechanism provided in Embodiment 1, when the main equipment of the suspended underwater suspension manifold needs to be recovered and maintained, it can be recovered. The recycling method includes the following steps:

[0059] Step A: The main body of the underwater suspension manifold stops production;

[0060] Step B: The external pipeline of the main body of the underwater suspension manifold is released;

[0061] Step C: open the air valve 2, the air intake main pipe fills the air valve 2 with gas through the air intake pipe 4, the gas enters the buoy layer 10, and at the same time opens the water valve 3, the seawater in the buoy layer 10 is discharged from the buoy layer 10 through the water valve 3 , the main body of the underwater suspension manifold and the four buoys 1 rise gradually;

[0062] Step D: Repeat step C to continuously inflate and dr...

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Abstract

The invention discloses a buoy device mechanism for a novel underwater suspension manifold and a using method of the buoy device mechanism. The device mechanism comprises four buoys, a plurality of buoy layers are arranged in each buoy, an independent air valve and an independent water valve are arranged on the outer wall of each buoy layer, an air inlet pipe is configured outside each buoy, eachbuoy layer communicates with the corresponding air inlet pipe through the corresponding air valve, and the air inlet ends of the air inlet pipes of the four buoys are converged upwards to form an airinlet main pipe. According to the buoy device mechanism for the underwater suspension manifold and the using method of the buoy device mechanism, the difficulty of operation such as lowering mounting,maintaining and recycling of the underwater suspension manifold is greatly lowered, and the adaptability of a suspension system of the underwater suspension manifold to changes of a working area in the marine environment is improved.

Description

technical field [0001] The invention relates to the technical field of offshore oil development, in particular to a buoy device mechanism for a novel underwater suspension manifold and a method for installing and recovering the novel underwater suspension manifold. Background technique [0002] With the development of offshore oil and gas development, the application of underwater production systems is becoming more and more extensive. As a key component of the underwater system, the subsea manifold has the advantages of optimized pipeline layout, flexible use, and staged development, and is widely used in the field of underwater oil and gas development. [0003] The existing underwater manifolds are located on the seabed, which not only requires drafting of the seabed topography, but also increases the difficulty of lowering and installing the underwater manifolds, and also requires the underwater manifolds to be directly fixed on the underwater pile foundation, resulting i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/01E21B43/013
CPCE21B43/0107E21B43/013
Inventor 王莹莹赵宏林李楠段梦兰朱霄霄杨超郭鑫林方坚徐宁安晨李昱奇陈志煌单荐王宝富罗文涛杨钟山闫晴陈幸汪聪祝鸿山乔婷婷
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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