KR101801947B1 - Offshore structure - Google Patents

Abstract

An offshore structure is disclosed. An offshore structure according to one aspect of the present invention includes a deck on which various facilities are mounted, a pontoon which is disposed on the lower portion of the deck to float on the deck to form buoyancy, a deck to connect the deck to the pontoon, A plurality of first columns disposed between the decks and spaced apart from each other along the perimeter of the deck, and a plurality of first columns disposed between the decks and the pontoons for connecting decks and pontoons, And a plurality of second columns spaced apart from each other along an inner circumference of the first column.

Description

Offshore Structures {OFFSHORE STRUCTURE}

The present invention relates to an offshore structure.

The offshore structure is a structure in which various facilities are installed for the production or storage of marine resources or offshore energy. The offshore structure is located on the sea so that various operations according to the use of the offshore structure can be smoothly performed.

Offshore floating structures are to be limited or fixed in position by the dynamic positioning system or mooring line in deep water. However, there may be a case where it is difficult to maintain a constant position due to sea breeze, current or wave.

In particular, waves entering an offshore structure can collide with the offshore structure, thereby moving the offshore structure or damaging the offshore structure. In particular, the offshore structure can be largely displaced from a certain position due to a jumping force due to a colliding wave, and a part of the offshore structure may be damaged due to slamming due to a direct impact of waves or waves.

Published Patent Publication No. 2014-0006605 (published on April 16, 2014)

Embodiments of the present invention are directed to providing an offshore structure that is capable of reducing the impact on the offshore structure due to incoming waves.

According to an aspect of the present invention, there is provided a deck comprising a deck on which various facilities are mounted, a pontoon disposed on the lower portion of the deck to float on the deck to form buoyancy, A plurality of first columns arranged to be spaced apart from each other along an outer periphery of the deck and a second column arranged between the decks and the pontoons for connecting decks and pontoons, There is provided an offshore structure including a plurality of second columns spaced apart from one another along the inner edge of the column.

A first beam disposed between angles of the first columns spaced apart from each other to intersect the first column and a second beam disposed between angles of the second column spaced apart from each other to intersect the second column, ). ≪ / RTI >

The first beams are arranged in a plurality of directions and spaced apart from each other along the longitudinal direction of the first column. A plurality of second beams are provided. The longitudinal direction of the second column is set to be between the angles of the first beams spaced apart from each other They can be spaced apart from one another.

And the second column may be formed such that the area of the cross section intersecting the longitudinal direction of the second column is smaller than the area of the cross section of the first column crossing the longitudinal direction of the first column.

The shape of each cross section of the first and second columns crossing the longitudinal direction is formed in a quadrangle, and the first and second columns can be arranged such that the respective corners face the inflow direction of the wave.

The shapes of the cross sections of the first beam and the second beam that intersect with each other in the longitudinal direction are formed in a quadrangle, and the first beam and the second beam may be arranged such that the respective corners thereof face the inflow direction of the wave.

According to the embodiments of the present invention, waves introduced by the first column disposed along the outer edge of the deck and the second column disposed along the inner edge of the first column can be canceled or broken, It is possible to implement an offshore structure that can reduce the impact on offshore structures.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a view of an offshore structure according to one embodiment of the present invention.
FIG. 2 is a front view of the marine structure shown in FIG. 1; FIG.
Fig. 3 is a view showing a modification of the marine structure shown in Fig. 1; Fig.
Figure 4 is a cross-sectional view taken along line I-I in Figure 1;
Figure 5 is a cross-sectional view taken along line II-II in Figure 1;

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, when a component is referred to as "comprising ", it means that it can include other components as well, without excluding other components unless specifically stated otherwise. Also, throughout the specification, the term "on" means to be located above or below the object portion, and does not necessarily mean that the object is located on the upper side with respect to the gravitational direction.

In addition, the term " coupled " is used not only in the case of direct physical contact between the respective constituent elements in the contact relation between the constituent elements, but also means that other constituent elements are interposed between the constituent elements, Use them as a concept to cover each contact.

It is also to be understood that the terms first, second, etc. used hereinafter are merely reference numerals for distinguishing between identical or corresponding components, and the same or corresponding components are defined by terms such as first, second, no.

The sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an embodiment of an offshore structure according to the present invention will be described in detail with reference to the accompanying drawings. Referring to the accompanying drawings, the same or corresponding components are denoted by the same reference numerals, Is omitted.

FIG. 1 is a view showing an offshore structure according to an embodiment of the present invention, and FIG. 2 is a front view of the offshore structure shown in FIG. 1. Referring to FIG.

1 and 2, an offshore structure 100 according to an embodiment of the present invention includes a deck 110, a pontoon 120, a first column 130 and a second column 140, And may further include a first beam 150 and a second beam 160.

The deck 110 is a part where various facilities 10 are mounted, and is located on the sea. The deck 110 may include a flat bottom formed on part or all of the top surface to mount the various utilities 10. [ The deck 110 may be formed in various structures depending on the use of the offshore structure 100, that is, the type of operation performed on the deck 110. For example, when the drilling operation is performed on the deck 110, A moonpool may be formed to pass through the upper and lower portions.

The deck 110 may be equipped with various facilities 10 depending on the use of the offshore structure 100. For example, the deck 110 may be equipped with facilities for exploration, sampling, storage, processing, transportation, etc. of crude oil, gas, and seabed mineral. In addition, drilling equipment for exploration of crude oil and the like, refining facilities for processing crude oil and the like, regasification facilities such as gas, and terminal facilities for storing and transporting marine resources can be mounted on the deck 110.

The pontoons 120 are disposed at the bottom of the deck 110 to form buoyancy so that the deck 110 floats on the sea. The pontoons 120 may be buoyant bodies, some or all of which may be located below the sea level, thereby forming buoyancy for supporting the deck 110. That is, the deck 110 may be supported floating on the sea due to the buoyancy formed by the pontoons 120.

The pontoons 120 may be positioned such that some of the pontoons 120 are exposed above the water surface during the movement of the offshore structure 100 and the pontoons 120 are maintained in a dynamic position maintained in the deep sea or maintained moored by a mooring line or the like May be located below the water surface as a whole to minimize resistance.

The pontoons 120 may be configured to include a plurality of tanks such as ballast tanks, and a thruster or the like for maintaining the dynamic position may be provided outside the pontoons 120. [ The pontoon 120 can be adjusted such that some or all of the pontoon 120 is located below the sea level by the ballast water contained therein.

The structure, shape and arrangement of the pontoon 120 and the buoyancy formed by the pontoon 120 can be variously changed depending on the use, size, shape or required draft of the offshore structure 100, and the like.

The first column 130 is installed between the deck 110 and the pontoons 120 to connect the deck 110 and the pontoons 120. The deck 110 and the pontoons 120 may be connected to each other by a first column 130 interposed between the deck 110 and the pontoons 120. The first column 130 may be connected to the pontoons 120, The deck 110 can float on the owing to the buoyancy formed by the pontoons 120. As a result,

If the offshore structure 100 is in a docked state, such as in a dynamic positioning or mooring line, a portion of the first column 130 may be located below sea level. At this time, the first column 130 may form a buoyancy with the pontoon 120, and the first column 130 may include a ballast tank for buoyancy formation.

A plurality of first columns 130 are disposed between the deck 110 and the pontoons 120 and a plurality of first columns 130 are disposed to be spaced apart from each other along an outer periphery of the deck 110.

A plurality of second columns 140 are provided between the deck 110 and the pontoons 120 to connect the deck 110 and the pontoons 120 and the plurality of second columns 140 are disposed between the decks 110 and the pontoons 120, Are spaced apart from each other along the inner edge of the first column 130 so as to be positioned between the angles of the first column 130.

The second column 140 may be interposed between the deck 110 and the pontoons 120 to support the deck 110 with the first column 130, similar to the first column 130. In addition, when the offshore structure 100 is in a docked state, such as in a dynamic positioning or mooring line, a portion of the second column 140 may be located below the sea level and form a corresponding buoyancy .

As shown in FIG. 1, the second column 140 is disposed inside the first column 130. Also, as shown in Figures 1 and 2, the second column 140 is positioned to be positioned between angularly spaced apart first columns 130. That is, the second column 140 may be disposed in the spacing space formed between the adjacent two first columns 130, and may be disposed inside the first column 130.

On the other hand, offshore structures floating on the sea are very influenced by sea breezes, ocean currents or waves. For example, an offshore structure is required to maintain a certain position in order to perform operations at sea, and it may deviate significantly from the position determined by the sea current or waves, or may be severely fluctuated.

Particularly, waves entering the offshore structures are applied to the offshore structure by applying a force to the offshore structure, causing the offshore structure to deviate significantly from the predetermined position, or the bottom of the deck may be damaged due to waves hitting the column or slamming by the waves .

Since the offshore structure 100 according to the present embodiment includes the first column 130 and the second column 140, it is possible to reduce the influence of the waves applied to the offshore structure 100 as described above. Specifically, the waves flowing toward the offshore structure 100 may be first crushed or offset by a sofa while striking the first column 130 disposed on the outside. The primarily broken waves can be broken or offset to a smaller wave while re-colliding with the inwardly disposed second column 140.

The sofa having been broken by the first column 130 and the second column 140 can apply only a relatively small force to the ocean structure 100 before being broken so that the position of the offshore structure 100 is prevented from being largely deviated And damage to the lower portion of the deck 110 can be prevented.

The offshore structure 100 according to the present embodiment may further include a first beam 150 and a second beam 160. The first beam 150 is disposed between the angles of the first column 130 spaced apart from each other to intersect the first column 130 and the second beam 160 is spaced apart from the second column 140 The first column 140 and the second column 140, respectively.

At this time, the first beams 150 may be arranged in plural and spaced apart from each other along the longitudinal direction of the first column 130, the second beams 160 may be provided in plural, May be spaced apart from each other along the longitudinal direction of the second column 140 so as to be positioned between the angles of the first column 150 and the second column 140.

The first beam 150 may be installed transversely to intersect the first column 130 installed in the longitudinal direction and may be installed in each of the spaced spaces formed between two adjacent first columns 130. Similarly, the second beam 160 may be installed transversely to intersect the second column 140 installed in the longitudinal direction, and may be installed in each of the spaced apart spaces formed between the adjacent two second columns 140 .

The first beam 150 and the second beam 160 may be provided in plural along the longitudinal direction of the first column 130 and the second column 140, respectively. That is, the first beams 150 may be spaced apart from each other along the longitudinal direction of the first column 130 in the spaced spaces formed between the adjacent two first columns 130. The plurality of second columns 140 may be disposed in a spaced-apart space formed between two adjacent second columns 140. The plurality of second columns 140 may be formed in a length of the first column 130 And may be spaced apart from each other along the longitudinal direction of the second column 140 so as to be positioned between the angles of the plurality of first beams 150 spaced from each other along the direction of the first column.

2, the second column 140 may be disposed between the first columns 130 and staggered with the first column 130, and the second beam 160 may be disposed between the first column 130 and the first column 130, And may be staggered with the first beam 150. [ The first column 130 and the second column 140 and the first beam 150 and the second beam 160 are arranged in a staggered arrangement so that a wave or a beam passing through the space between the first columns 130, The waves passing through the space between the first and second beams 150 may be broken or canceled by the second column 140 or by the second beam 160, respectively.

The first beam 150 and the second beam 160 are similar to the first column 130 and the second column 140 in order to break the waves flowing toward the offshore structure 100 into small waves, Can be canceled due to collision between waves. The first column 130 and the second column 140 may be longitudinally mounted to divide the waves flowing into the offshore structure 100 from side to side and the first beam 150 and the second beam 160 may be split, Can be installed horizontally to divide and break the waves flowing into the offshore structure 100 up and down.

Fig. 3 is a view showing a modification of the marine structure shown in Fig. 1. Fig.

3 includes a deck 110, a pontoon 120, a first column 130, and a second column 140, similar to the offshore structure described above with reference to Figs. And may further include a first beam 150 and a second beam 160. 1 and 2, the shape of the pontoon 120 and the arrangement of the first column 130 and the second column 140 according to the embodiment of the present invention are different from those of the above- The difference will be mainly described.

3, the offshore structure 100 according to the present example may include two pontoons 120 disposed side by side so that the first column 130 and the second column 140 And may be formed on two opposite side portions of the rectangular deck 110.

1, the first column 130 and the second column 140 may be formed along the entire rim of the deck 110, and the deck 110, as shown in FIG. 3, As shown in FIG. The first column 130 and the second column 140 can be installed at appropriate positions in consideration of respective influences due to the rolling and pitching of the offshore structure 100. [

Fig. 4 is a cross-sectional view taken along line I-I in Fig. 1, and Fig. 5 is a cross-sectional view taken along line II-II in Fig.

4 and 5, the second column 140 includes a first column 130 in which the cross-sectional area of the second column 140 is perpendicular to the longitudinal direction of the first column 130, Sectional area of the end surface of the semiconductor device. The second beam 160 is formed such that the area of the cross section of the second beam 160 in the longitudinal direction is smaller than the area of the cross section of the first beam 150 in the longitudinal direction of the first beam 150 .

The first column 130 disposed on the outer side receives a larger force by the waves than the second column 140 disposed on the inner side. Accordingly, the area of the first column 130 may be larger than the area of the second column 140 in the longitudinal direction. Likewise, the first beam 150 may have a larger cross-sectional area in the longitudinal direction than the second beam 160.

4 and 5, the cross-sectional shapes of the first and second columns 130 and 140 may be rectangular. In this case, the first column 130 and the second column 140 may have a rectangular cross- 130 and the second column 140 may be arranged so that their respective corners face the inflow direction of the wave.

When the corners of the first column 130 and the second column 140 are arranged to face the inflow direction of the wave, the repair area of the ocean structure 100 in which waves collide is reduced, Not only can the receiving force be reduced, but also the breaking function of each column 130, 140 can be improved.

Similarly, the shape of each cross section of the first beam 150 and the second beam 160 in the longitudinal direction is formed to be a square shape, and the first beam 150 and the second beam 160 are formed at respective corners May be arranged to face the inflow direction of the wave.

4, the waves W1 flowing into the offshore structure 100 can be divided into small waves W2 by colliding with the first columns 130, and the divided waves W2 collide with each other Or advance inward of the first column 130. The wave W2 traveling inward of the first column 130 is divided into a smaller wave W3 by colliding with the second column 140. At this time, the wave W3 is canceled to disappear or remain . Since the residual wave has a smaller force than the wave initially introduced into the offshore structure 100, the influence on the offshore structure 100 can be greatly reduced.

5, the waves W4 flowing into the offshore structure 100 can be divided into small waves W5 by colliding with the first beams 150, and the divided waves W5 collide with each other Or advance into the interior of the first beam 150. The wave W5 traveling inward of the first beam 150 is split into a smaller wave W6 by colliding with the second beam 160 so that the wave W6 is canceled to disappear or remain . Since the residual wave has a smaller force than the wave initially introduced into the offshore structure 100, the influence on the offshore structure 100 can be greatly reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Facility 100: Offshore structure
110: Deck 120: pontoon
130: first column 140: second column
150: first beam 160: second beam

Claims (6)

A deck on which various facilities are installed;
A pontoon disposed at a lower portion of the deck to form buoyancy so that the deck floats on the sea;
A plurality of first columns disposed between the deck and the pontoons to connect the deck and the pontoons and spaced apart from each other along an outer periphery of the deck; And
A plurality of second columns disposed between the deck and the pontoons to connect the decks and the pontoons and spaced apart from each other along the inner perimeter of the first columns to be positioned between the angles of the first columns spaced apart from each other; / RTI >
Wherein the shape of each cross section intersecting with the longitudinal direction of the first column and the second column is a square,
Wherein the first column and the second column are arranged so that their respective corners face the inflow direction of the waves. The method according to claim 1,
A first beam disposed between angles of the first column spaced apart from each other to intersect the first column; And
And a second beam disposed between angles of the second column spaced apart from each other to intersect the second column. 3. The method of claim 2,
Wherein the plurality of first beams are disposed to be spaced from each other along the longitudinal direction of the first column,
Wherein the second beam is disposed in a plurality and is spaced apart from each other along a longitudinal direction of the second column so as to be positioned between the angles of the first beam spaced apart from each other. 4. The method according to any one of claims 1 to 3,
And the second column is formed such that an area of a cross section crossing the longitudinal direction of the second column is smaller than an area of a cross section of the first column crossing the longitudinal direction of the first column. delete 3. The method of claim 2,
Wherein the shape of each cross section of the first beam and the second beam intersecting with the longitudinal direction is a rectangle,
Wherein the first beam and the second beam are disposed so that their respective corners face the inflow direction of the wave.

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