KR20170052200A - Apparatus for loading topside and method therefor - Google Patents

Apparatus for loading topside and method therefor Download PDF

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Publication number
KR20170052200A
KR20170052200A KR1020150154372A KR20150154372A KR20170052200A KR 20170052200 A KR20170052200 A KR 20170052200A KR 1020150154372 A KR1020150154372 A KR 1020150154372A KR 20150154372 A KR20150154372 A KR 20150154372A KR 20170052200 A KR20170052200 A KR 20170052200A
Authority
KR
South Korea
Prior art keywords
semi
carrier
top side
topside
submerged float
Prior art date
Application number
KR1020150154372A
Other languages
Korean (ko)
Inventor
이기윤
Original Assignee
대우조선해양 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 대우조선해양 주식회사 filed Critical 대우조선해양 주식회사
Priority to KR1020150154372A priority Critical patent/KR20170052200A/en
Publication of KR20170052200A publication Critical patent/KR20170052200A/en

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Classifications

    • B63B9/00—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/003—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting very large loads, e.g. offshore structure modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • B63B43/06—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
    • B63B9/065—
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/448—Floating hydrocarbon production vessels, e.g. Floating Production Storage and Offloading vessels [FPSO]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Foundations (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top-side installation apparatus and method, and more particularly, to a float-over construction method, instead of lifting a large top side by a crane, The present invention relates to an apparatus and a method for installing a topside, which is low in installation cost and high in stability, by fixing a semi-submerged float by a foundation supporting member capable of being moved to the top of the tower.
A top side installation apparatus according to the present invention comprises: a plurality of fixing members fixed to a seabed; A plurality of legs formed to be serrated in the longitudinal direction and connected to each other perpendicularly to the plurality of fixing members and arranged side by side; And a foundation supporting member connected to the plurality of legs and moving up and down; Wherein the semi-submerged floating body is seated on the foundation supporting member when the top side is mounted on the semi-submerged floating body.

Description

[0001] APPARATUS FOR LOADING TOPSIDE AND METHOD THEREFOR [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top-side installation apparatus and method, and more particularly, to a float-over construction method, instead of lifting a large top side by a crane, The present invention relates to an apparatus and a method for installing a topside, which is low in installation cost and high in stability, by fixing a semi-submerged float by a foundation supporting member capable of being moved to the top of the tower.

In general, Liquefied Natural Gas (LNG) is a colorless transparent cryogenic liquid which is cooled to a temperature of -162 ° C at atmospheric pressure to reduce the volume of methane-based natural gas to one- , It is known that it is more economical for long-distance transportation because of better transportation efficiency than the gas state.

Floating production facilities installed in the deep sea have either column-type or semi-submerged column-stabilized types such as pontoon-columns.

Semi-submerged float type is classified into Hull with pontoon-column at the bottom and Topside with production facility at the upper part. Deck weight and facility of deep-sea production equipment required in market are getting bigger As the length of the crane boom is limited and the modules for loading are divided into dozens of units, it is becoming more and more uneconomical to mount the topside using the crane on the quay,

Korean Patent Publication No. KR2014-0141326 (Dec. 10, 2014)

In order to solve the above problems, the applicant of the present invention has proposed a float-over method, not a lifting method using a crane, for a large top side, The present invention aims to reduce the installation cost and increase the stability by mounting the semi-submerged float on the upper part and mounting the top side thereon.

According to an aspect of the present invention, A plurality of legs formed to be serrated in the longitudinal direction and connected to each other perpendicularly to the plurality of fixing members and arranged side by side; And a foundation supporting member connected to the plurality of legs and moving up and down; Wherein the semi-submerged floating body is seated on the foundation supporting member when the top side is mounted on the semi-submerged floating body.

The semi-submerged float may include a pontoon forming a buoyancy and a column vertically installed on the pontoon, wherein the pontoon and the column include a ballast tank.

And a carrier for moving the topside dried over the land to an installation site.

According to another aspect of the present invention, there is provided a method of installing a top side, comprising: a foundation step connected to a plurality of column members fixed to a seabed and equipped with a foundation supporting member movable up and down; A semi-submerged float seating step in which the semi-submerged float is seated on the foundation support member by ballasting; And a top-side mounting step of mounting the top-side to the semi-submerged float.

The top side mounting step preferably includes a top side moving step of drying the top side on the land and moving to the installation place by a carrier.

Preferably, the topside mounting step further includes a first carrier removing step of filling the ballast tank of the carrier on which the top side has been moved with seawater to sink the carrier to remove the carrier from the top side.

Preferably, the topside mounting step further includes a second carrier removing step of raising the foundation supporting member to remove the carrier from the top side, in which the carrier having moved the top side is removed.

Preferably, the semi-submerged float seating is seated on the foundation support member by filling seawater in a balancing tank inside the semi-submerged float.

According to the present invention, by applying a float-over method instead of a lifting method using a crane to a large top side, a semi-submerged float And the top side is mounted on the upper part, the installation cost is reduced and the stability is improved.

1 is a side view showing a top side installation apparatus according to the present invention.
2 is a plan view showing a top side installation apparatus according to the present invention.
3 is a flowchart showing a top side installation method according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following embodiments can be modified into various other forms, and the scope of the present invention is not limited to the following embodiments.

FIG. 1 is a side view showing a top side installing apparatus according to the present invention, and FIG. 2 is a top view showing a top side installing apparatus according to the present invention.

1 and 2, the top-side installing apparatus 100 includes a plurality of fixing members 110 fixed to the seabed, a toothed portion formed in the longitudinal direction, and a plurality of fixing members 110 vertically connected A plurality of legs (120) arranged side by side; And a foundation supporting member 130 connected to the plurality of legs 120 and moving in the vertical direction. The foundation supporting member 130 is installed on the semi-submergible float 200, 130 may have a semi-submerged float 200 seated thereon.

The top side attachment apparatus 100 may be provided with legs 120 that can be moved up and down to match the leveling of the foundation supporting member 130 to various depths of the installation place, A jacking leg can be installed.

A plurality of fixing members 110 fixed to the seabed can be installed not only in a rocky area but also in a soft ground, for example, a spand can type fixing member, so that structural stability can be achieved.

The semi-submerged float 200 includes a pontoon 210 forming a buoyancy and a column 220 installed vertically above the pontoons 210 and a ballast tank within the pontoons 210 and the column 220 .

The pontoon-column-based semi-submerged float 200 may be a ballasting / void tank associated with the stability performance of the pontoon-collar's hull side space, It may be a tank that stores the fluid produced at the topside.

Semi-submerged float (200) is drifted onshore and can be moved to the installation area by wet towing method while floated at sea via barge or carrier. The semi-submerged float 200, which has moved to the installation area, is filled with seawater in an inner ballast tank (not shown) in order to settle and settle into the already installed topside installation apparatus 100, (Not shown).

The top side 300 is dried on the land and is carried on the top of a barge or heavy transport vessel 310 to move to the installation site and the support side 320 of the carrier 310 supports the top side 300 Can be supported.

The carrier 310 carrying the topside 300 is moved to the center of the semi-submerged float 200 and then moved to the topside connection member 301, such as the stabbing cone Stabbing Cone and the column connecting member 221, for example, a leg mating unit (LMU), can be coupled to each other to absorb impact in the coupling between the two devices.

When the semi-submergible float 200 is mounted on the topside 300, the carrier 310 fills the ballasting tank 311 with seawater so that the carrier 310 sinks to a certain height, The foundation support member 130 may be lifted up along the legs 120 so that the carrier 310 is separated from the topside 300.

3 is a flowchart showing a top side installation method according to the present invention.

3, in the top side installation method, a plurality of column members fixed to the sea floor, that is, a member including the fixing member 110 and the leg 120, (S100) for mounting the filter (130); A semi-submerged float seating step (S200) for seating the semi-submerged float (200) on the foundation support member (130) by ballasting; And a top side mounting step (S300) of mounting the top side to the semi-submerged float.

The semi-submerged float seating step S200 can be seated on the foundation support member 130 by filling the ballasting tank of the semi-submerged float 200 with seawater.

The top side mounting step S300 may include a top side moving step in which the top side 300 is dried onshore and moved to the installation site by the carrier 310. [

In the top side mounting step S300, the ballast tank 311 of the carrier 310 moving the top side 300 is filled with seawater so that the carrier 310 is lowered to a predetermined height, 310 from the first carrier removing step.

Alternatively, the topside mounting step S300 may include lifting the foundation support member 130 to remove the carrier 310 moving the topside 300 from the topside 300 to remove the carrier 310 And a second carrier removing step of removing the second carrier.

In order to apply the float-over method instead of lifting the large top side by the crane, according to the apparatus and method for installing the top side according to the present invention, The semi-submerged float is fixed by a foundation supporting member as much as possible, and the top side is mounted on the semi-submerged float, whereby the installation cost is reduced and the stability is improved.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. It is.

100: Top side mounting device 110: Fixing member
120: Leg 130: Foundation supporting member
200: semi-submerged float 210: pontoon
220: Column 300: Topside
310: Carrier 320: Support means

Claims (8)

A plurality of fixing members fixed to the seabed;
A plurality of legs formed to be serrated in the longitudinal direction and connected to each other perpendicularly to the plurality of fixing members and arranged side by side; And
A foundation supporting member connected to the plurality of legs and moving up and down; / RTI >
Wherein the semi-submerged float is seated on top of the foundation support member when the topside is mounted on top of the semi-submerged float. The method according to claim 1,
The semi-
The pontoons that form buoyancy and
And a column vertically installed on the pontoon,
Wherein the pontoon and the column include a ballast tank. The method according to claim 1,
And a carrier for moving the topside dried over the land to the installation site. In the top side installation method,
A foundation step connected to a plurality of column members fixed to the seabed and equipped with a foundation supporting member movable up and down;
A semi-submerged float seating step in which the semi-submerged float is seated on the foundation support member by ballasting; And
And a top side mounting step of mounting the top side to the semi-submerged float. The method of claim 4,
Wherein the topside mounting comprises:
And a top side moving step of drying the top side on land and moving to a setting location by a carrier. The method of claim 4,
Wherein the topside mounting comprises:
Further comprising a first carrier removing step of filling seawater in the ballast tanks of the carrier in which the top side has been moved to sink the carrier to remove the carrier from the top side. The method of claim 4,
Wherein the topside mounting comprises:
Further comprising a second carrier removal step for lifting the foundation support member to remove the carrier from the topside to remove the carrier from which the topside has been moved. The method of claim 4,
Wherein the semi-submerged float seating comprises:
Wherein the bottom support tank is seated in the foundation support member by filling seawater in a balancing tank inside the semi-submerged float.
KR1020150154372A 2015-11-04 2015-11-04 Apparatus for loading topside and method therefor KR20170052200A (en)

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Application Number Priority Date Filing Date Title
KR1020150154372A KR20170052200A (en) 2015-11-04 2015-11-04 Apparatus for loading topside and method therefor

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019059534A1 (en) * 2017-09-21 2019-03-28 한국해양과학기술원 Topside deck-installation guide device, and operation method and installation method therefor
WO2019059533A1 (en) * 2017-09-21 2019-03-28 한국해양과학기술원 Topside deck coupling guiding apparatus having increased reliability, method for operating same, and method for installing same
CN113353202A (en) * 2020-03-04 2021-09-07 中国电建集团华东勘测设计研究院有限公司 Floating-supporting type installation structure and method for offshore converter station

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019059534A1 (en) * 2017-09-21 2019-03-28 한국해양과학기술원 Topside deck-installation guide device, and operation method and installation method therefor
WO2019059533A1 (en) * 2017-09-21 2019-03-28 한국해양과학기술원 Topside deck coupling guiding apparatus having increased reliability, method for operating same, and method for installing same
CN113353202A (en) * 2020-03-04 2021-09-07 中国电建集团华东勘测设计研究院有限公司 Floating-supporting type installation structure and method for offshore converter station

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