KR20160036303A - Jacket type marine structure - Google Patents

Jacket type marine structure Download PDF

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Publication number
KR20160036303A
KR20160036303A KR1020140128353A KR20140128353A KR20160036303A KR 20160036303 A KR20160036303 A KR 20160036303A KR 1020140128353 A KR1020140128353 A KR 1020140128353A KR 20140128353 A KR20140128353 A KR 20140128353A KR 20160036303 A KR20160036303 A KR 20160036303A
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KR
South Korea
Prior art keywords
door
jacket
tower
work platform
intermediate structure
Prior art date
Application number
KR1020140128353A
Other languages
Korean (ko)
Inventor
김인규
Original Assignee
삼성중공업 주식회사
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Publication date
Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR1020140128353A priority Critical patent/KR20160036303A/en
Publication of KR20160036303A publication Critical patent/KR20160036303A/en

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    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wind Motors (AREA)

Abstract

Provided is a jacket-type marine structure. A jacket-type marine structure according to an embodiment of the present invention includes: a lower jacket; a middle structure positioned on the top of the lower jacket; and a upper tower positioned on the top of the middle structure. A door capable to be opened is formed on the underside of the middle structure. The purpose of the present invention is to provide a jacket-type marine structure wherein the door is installed on the underside of the middle structure positioned between the lower jacket and the upper tower.

Description

Jacket type marine structure {JACKET TYPE MARINE STRUCTURE}

The present invention relates to a jacket type offshore structure, and more particularly, to a jacket type offshore structure having a door on a lower surface of an intermediate structure positioned between a lower jacket and an upper tower.

In general, marine structures are used for drilling and production of offshore oil and gas. Offshore structure is a structure to be installed on the sea or under the sea. It is classified into fixed type, semi-submerged type, floating type according to depth, and is mainly used for marine work such as exploration and extraction of energy source such as oil or natural gas . These offshore structures are equipped with drilling rigs and are used to develop underwater oil fields.

The offshore structure consists of an upper structure installed to be exposed to the sea, a substructure mostly under the sea surface, and a foundation structure fixed on the ground of the seabed, and it should be able to stably support the heavy load components. The offshore structure for stable support is installed in the ocean in various formats such as jacket type, mono pile type, and tri pod type. Especially, recently, the loads of the structures to be supported by the offshore structure are gradually increasing, and the depth of the offshore structure where the offshore structures are installed is deepening, and a lot of jacket type offshore structures are installed.

1 is a view showing a conventional jacket type offshore structure.

Referring to FIG. 1, a conventional jacket type offshore structure 1 is provided with a jacket 2 at a lower portion thereof, a support structure 3 above the jacket 2, and a tower above the support structure 3. At this time, the door (5) is installed in the support structure (3) for inspection and replacement of parts.

However, since the door 5 to be installed is located on the side surface of the structure 3, the load concentration is generated, and the steel plate of the structure 3 is thickened and the steel plate is reinforced around the door 5 do. Reducing the size of the door (5) can reduce the thickness and cost of the structure (3), but the size of the door (5) is determined in consideration of the size of the transformer . This makes the production of the structure 3 difficult and raises the production cost. In addition, additional equipment and effort are required to remove the electrical components to the work platform when replacing the electrical components.

Korea Open Patent No. 2012-0133689 (Dec. 11, 2012) U.S. Pat. No. 6,761,124 (published on July 13, 2004)

SUMMARY OF THE INVENTION The present invention provides a jacket type offshore structure in which a door is provided on a bottom surface of an intermediate structure positioned between a lower jacket and an upper tower.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a jacket type offshore structure comprising: a lower jacket; An intermediate structure positioned above the lower jacket; And an upper tower positioned above the intermediate structure, wherein a door capable of being opened and closed is provided on the lower surface of the intermediate structure.

The lower jacket may include a plurality of legs; And a brace connecting between the plurality of legs.

The intermediate structure may include a work platform connected to the lower jacket; An intermediate body mounted on the work platform; And an auxiliary support connecting an outer circumferential surface of the intermediate body and an upper surface of the work platform.

Further, the work platform may be provided with the door on a lower surface thereof.

In addition, the work platform may include a region protruding outward from a lower end peripheral surface of the intermediate body.

The apparatus may further include a base plate formed between the intermediate structure and the tower.

In addition, the base plate may include an inner door that can be opened and closed.

In addition, the tower may include at least one floor plate that divides the interior space of the tower vertically.

The floor plate may include an inner door that can be opened and closed.

Other specific details of the invention are included in the detailed description and drawings.

According to the present invention, by providing a door on the lower surface of the intermediate structure positioned between the lower jacket and the upper tower, the adverse effect of lowering the strength of the structure compared with the door made on the side surface of the structure can be reduced.

In addition, it is possible to improve the material cost and the workability by reducing the thickness of the intermediate structure, and it is possible to reduce the replacement time because no special equipment is required when the electrical parts are replaced.

In addition, the transformer can be vertically moved to the lower door through a chain block without special equipment, which saves time and money, and has the same advantage in reinstallation.

1 is a view showing a conventional jacket type offshore structure.
2 is a view illustrating a jacket type offshore structure according to an embodiment of the present invention.
3 is a view illustrating a lower jacket of a jacket type offshore structure according to an embodiment of the present invention.
4 is a view illustrating an intermediate structure and an upper tower of a jacket type offshore structure according to an embodiment of the present invention.
5 is a view illustrating an inner door installed on a base plate of a jacket type offshore structure according to an embodiment of the present invention.
6 is a view showing an embodiment of an inner door installed on a floor plate of a tower of a jacket type offshore structure according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Although the first, second, etc. are used to describe various elements, components and / or sections, it is needless to say that these elements, components and / or sections are not limited by these terms. These terms are only used to distinguish one element, element or section from another element, element or section. Therefore, it goes without saying that the first element, the first element or the first section mentioned below may be the second element, the second element or the second section within the technical spirit of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that the terms "comprises" and / or "comprising" used in the specification are intended to be inclusive in a manner similar to the components, steps, operations, and / Or additions.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a view illustrating a jacket type offshore structure according to an embodiment of the present invention.

Referring to FIG. 2, a jacket-type offshore structure 100 according to an embodiment of the present invention includes a lower jacket 110, an intermediate structure 120, and an upper tower 130. Specifically, a lower jacket 110 for supporting the intermediate structure 120 and the upper tower 130 is installed at the bottom, an intermediate structure 120 is installed at an upper portion of the lower jacket 110, An upper tower 130 is installed on the upper part of the intermediate structure 120.

Here, a door 101 that can be opened and closed is provided on the lower surface of the intermediate structure 120. Since the door 101 is provided on the lower surface of the intermediate structure 120 to reduce the thickness of the intermediate structure 120 and the components can be moved directly to the sea surface or the sea surface through the door 101, Time can be reduced. The door 101 may have various shapes such as a square door shape, a circular shape, and the like on the lower surface of the intermediate structure 120, for example. Although not shown in the drawing, a ladder or a stairway may be provided in the lower jacket 110 to the door 101 so that an operator can approach the door 101 through a ladder or a step.

3 is a view illustrating a lower jacket of a jacket type offshore structure according to an embodiment of the present invention. 4 is a view showing an intermediate structure and an upper tower of a jacket type offshore structure according to an embodiment of the present invention.

Referring to FIG. 3, the lower jacket 110 may include a plurality of legs 112 and a brace 114 connecting between the plurality of legs 112. The legs 112 and the braces 114 may be made of steel in consideration of durability, load, and the like.

The legs 112 are erected on the base structure of the seabed ground surface B and are mostly under the sea surface S and partly exposed on the sea surface S although depending on the weather condition. Although a plurality of such legs 112 are provided, generally three to four are provided.

The braces 114 connect between the legs 112 to reinforce the structure. The braces 114 may connect each leg 112 to each other or may be connected to each other in a cross shape for structural stability.

Although not shown in the drawing, a platform may be installed on the side of the leg 112, and a ladder connecting the auxiliary platform and the work platform 122 of the intermediate structure 120 may be installed, It is possible to move the auxiliary platform and the operation platform 122 of the intermediate structure 120 through the ladder.

Referring to FIG. 4, the intermediate structure 120 includes a work platform 122 connected to the lower jacket 110, an intermediate body 124 mounted on the work platform 122, And an auxiliary support 126 connecting the upper surface of the work platform 122. In addition, the work platform 122 may be provided with a handrail 128 for operator safety.

The work platform 122 may be positioned at the upper end of the lower jacket 110 and may include a region 128 formed outwardly protruding from the lower end peripheral surface of the middle body 124. In the protruded area 128 of such a work platform 122, the operator can perform various maintenance operations. Further, the work platform 122 may be provided with a door 101 on a lower surface thereof. The door 101 is installed on the lower surface of the intermediate structure 120 and more precisely the door 101 is installed on the lower surface of the work platform 122 forming the bottom of the intermediate structure 120. It is possible to minimize stress concentration by minimizing the discontinuity of the structure by providing the door 101 at the center of the lower surface of the work platform 122 instead of installing the door 101 on one side of the intermediate body 124, It is possible to move equipment or parts such as electric equipment directly from sea level or sea level, thereby improving workability.

The intermediate body 124 is a main component of the intermediate structure 120. The middle body 124 is not provided with the door 101 but is a single structure so that load concentration does not occur and the thickness of the intermediate body 124 Cost savings can be achieved.

The auxiliary support 126 serves to reinforce the structure by connecting between the work platform 122 and the intermediate body 124 and also acts as a reinforcement for supporting the upper end of the transmission member Can play a role.

5 is a view illustrating an inner door installed on a base plate of a jacket type offshore structure according to an embodiment of the present invention.

4 and 5, a base plate 140 may be formed between the intermediate structure 120 and the tower 130 for structural stability. Specifically, the base plate 140 can be connected between the upper end of the intermediate body 124 of the intermediate structure 120 and the lower end of the tower 130. The base plate 140 may have a portion protruding outward from the outer circumferential surface, and an operator may move to the protruded portion to perform an operation.

Also, the base plate 140 may include an inner door 102 that can be opened and closed. The inner door 102 is installed in the base plate 140 so that an apparatus or part that can be moved from the sea level through the door 101 is continuously connected to the upper end of the tower 130 through the inner door 102 You can move it. It is also possible to move an apparatus, a part, and the like located at the upper end of the tower 130 to the ship on the sea surface at one time through the inner door 102 and the door 101. Accordingly, the replacement time can be reduced, the special equipment is not required, and the cost and the like can be reduced, so that the work productivity can be improved.

6 is a view showing an embodiment of an inner door installed on a floor plate of a tower of a jacket type offshore structure according to an embodiment of the present invention.

Referring to FIGS. 4 and 6, the tower 130 may include at least one floor plate 132 that vertically divides the interior space of the tower 130. The tower 130 may be several tens of meters in length, so that multiple layers including the floor plate 132 may be formed therein for structural stability, installation of equipment, and the like.

Further, the floor plate 132 may include an inner door 102 that can be opened and closed therein. The inner door 102 is also installed in the floor plate 132 so that the apparatus or parts that can be moved from the sea surface through the door 101 are continuously connected to the tower 102 through the inner door 102 of the floor plate 132 130). It is also possible to move an apparatus, a part, and the like located at the upper end of the tower 130 to the ship on the sea surface at one time through the inner door 102 and the door 101.

The floor plate 132 of the tower 130 and / or the inner door 102 of the base plate 140 may have various shapes such as a square door shape, a circular shape, and the like.

The jacket type offshore structure according to the embodiment of the present invention can reduce the adverse effect of lowering the strength of the structure compared to the door made on the side surface of the structure by providing a door that can be opened and closed on the bottom surface of various structures, It is possible to improve the material cost and the workability by reducing the thickness of the electric parts, and it is possible to reduce the replacement time because the special equipments and the like are not needed when the electric parts are replaced.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: jacket type offshore structure
101: door 102: inner door
110: lower jacket 112: leg
114: Brace 120: intermediate structure
122: work platform 124: intermediate body
126: auxiliary support 128: rail
130: upper tower 132: floor plate
140: base plate

Claims (9)

A lower jacket;
An intermediate structure positioned above the lower jacket; And
And an upper tower positioned above the intermediate structure,
Wherein a door capable of opening and closing is provided on a lower surface of the intermediate structure. The method according to claim 1,
The lower jacket includes:
A plurality of legs; And
And a brace connecting between the plurality of legs. The method according to claim 1,
Wherein the intermediate structure comprises:
A work platform connected to the lower jacket;
An intermediate body mounted on the work platform; And
And an auxiliary support connecting an outer circumferential surface of the intermediate body and an upper surface of the work platform. The method of claim 3,
Wherein the work platform is provided with the door on a lower surface thereof. The method of claim 3,
Wherein the work platform includes an area protruded outward from a lower end peripheral surface of the intermediate body. The method according to claim 1,
Further comprising a base plate formed between the intermediate structure and the tower. The method according to claim 6,
Wherein the base plate includes an inner door openable and closable within the jacket type marine structure. The method according to claim 1,
Wherein the tower includes at least one floor plate that defines an interior space of the tower up and down. The method according to claim 6,
Wherein the floor plate includes an inner door openable and closable therein.
KR1020140128353A 2014-09-25 2014-09-25 Jacket type marine structure KR20160036303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140128353A KR20160036303A (en) 2014-09-25 2014-09-25 Jacket type marine structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140128353A KR20160036303A (en) 2014-09-25 2014-09-25 Jacket type marine structure

Publications (1)

Publication Number Publication Date
KR20160036303A true KR20160036303A (en) 2016-04-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140128353A KR20160036303A (en) 2014-09-25 2014-09-25 Jacket type marine structure

Country Status (1)

Country Link
KR (1) KR20160036303A (en)

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