KR101837098B1 - Spudcan used for floating vessel - Google Patents

Spudcan used for floating vessel Download PDF

Info

Publication number
KR101837098B1
KR101837098B1 KR1020150129604A KR20150129604A KR101837098B1 KR 101837098 B1 KR101837098 B1 KR 101837098B1 KR 1020150129604 A KR1020150129604 A KR 1020150129604A KR 20150129604 A KR20150129604 A KR 20150129604A KR 101837098 B1 KR101837098 B1 KR 101837098B1
Authority
KR
South Korea
Prior art keywords
hole
spud
support portion
penetration
jack
Prior art date
Application number
KR1020150129604A
Other languages
Korean (ko)
Other versions
KR20170032514A (en
Inventor
원종화
박종식
이준모
류민철
주영석
샤짜드 호세인 무하마드
제이슨 캐시디 마크
후 위시아
김영호
Original Assignee
대우조선해양 주식회사
더 유니버시티 오브 웨스턴 오스트레일리아
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, 더 유니버시티 오브 웨스턴 오스트레일리아 filed Critical 대우조선해양 주식회사
Priority to KR1020150129604A priority Critical patent/KR101837098B1/en
Priority to PCT/KR2016/010231 priority patent/WO2017048004A1/en
Priority to AU2016324439A priority patent/AU2016324439A1/en
Priority to GB1806106.9A priority patent/GB2559286A/en
Publication of KR20170032514A publication Critical patent/KR20170032514A/en
Application granted granted Critical
Publication of KR101837098B1 publication Critical patent/KR101837098B1/en

Links

Images

Classifications

    • 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
    • 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
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
    • 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
    • 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
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0078—Suction piles, suction cans
    • 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
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0082—Spudcans, skirts or extended feet

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)

Abstract

Disclosed is a sprung can for a floating suspension.
According to the present invention, in the case of a marine suspended body having a jack-up rig, it is possible to reduce the punch through phenomenon that may occur during penetration of the seabed ground by using the spud can for fixing the jack- It can be eliminated.

Description

Spudcan used for floating vessel}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sprue can for a marine suspended body, and more particularly, to a sprue can used for an ocean drilling structure and capable of reducing a punch through phenomenon of a jack up league.

There is a case where a leg provided on an upper part of a sprung can and a spud can that are structures for supporting a marine structure such as a jack-up rig by being fixed to the ground of a seabed for a certain purpose have. In particular, the jack-up league is often equipped with a fixed marine drilling structure to stably perform certain operations at sea.

In order for the jack-up rig to be stably fixed to the seabed, it is necessary to penetrate the seabed to a certain depth or more. To this end, a spudcan for penetrating the seabed ground may be provided at the lower end of the leg portion of the jack up league. That is, the spud can can penetrate and support the bottom of the seabed so that the jack-up rig can be stably fixed to the bottom of the seabed. After ensuring sufficient bearing capacity through a certain level of penetration of the seabed ground, the spud cans stop penetration of the seabed ground and support the jack-up leagues equipped with drilling and production equipment.

On the other hand, the process of penetrating the submarine ground using the spuddane can be greatly affected by the seabed ground. In particular, when the stiffness of the seabed ground changes drastically during the penetration of the seabed ground, a safety accident called punch through may occur.

FIG. 1 is a graph showing a punch-through phenomenon that may occur during the operation of a jack-up league in the submarine ground penetration.

Referring to FIG. 1, the vertical axis indicates a depth of penetration through which the jack-up lee and the spur can penetrate, and the horizontal axis indicates the degree of penetration of the jack-up league and spur can against the seabed ground. Means penetration resistance. A large intrusion resistance means that more intrusion is needed. This penetration resistance is influenced by the strength of the penetrated seabed ground and the horizontal cross-sectional area of the penetrating sped can. That is, the greater the strength of the seabed ground and the larger the horizontal cross-sectional area of the penetrating sped can, the greater the penetration resistance.

1, it is common that the intrusion depth increases in the penetration process, so that the strength of the seabed ground is increased. Therefore, the penetration resistance also increases (see the first region of FIG. 1). However, (See the second area of FIG. 1). Thus, at a certain depth of the seabed ground in the process of penetration, the depth of the seabed is increased, (The first point in Fig. 1) where the intrusion resistance is relatively large. The spur can is smoothly penetrated until it passes through the first point. At the moment when the spur can passes through the first point, the point where the penetration resistance becomes lower than the penetration resistance of the first point is encountered. This is called a punch through phenomenon. The spud can which has undergone the punchthrough phenomenon loses its stability to the point having the same penetration resistance as the first point (the second point in Fig. 1), and steadily descends continuously. The spud can that has undergone the punch-through phenomenon up to the ash 2 again descends steadily again, reaching the point (the third point in FIG. 1) that originally wanted to descend, and ends the intrusion process.

Among the accidents occurring during the penetration of the seabed ground, accidents caused by the punch-through phenomenon are serious risk factors that constitute 1/3 of the jack-up league related accidents and cause great losses such as oil and gas leakage and human casualties .

In order to eliminate the punchthrough phenomenon, it was necessary to improve the seabed ground before the penetration of the seabed ground, or to remove the seabed ground layer where punch through phenomenon could occur. However, since it requires a separate construction process, Inefficiency was high in terms of cost.

Accordingly, it is an object of the present invention to provide a sped can that can reduce or eliminate a punch-through phenomenon that occurs when a jack-up rig is introduced into a seabed ground.

According to an aspect of the present invention, there is provided a spudcan of a jack-up rig for a floating suspension, comprising: a support portion constituting a body of a spud can provided at a lower end of the jack-up rig; And a penetrating hole penetrating the supporting portion in a vertical direction so that a penetration resistance generated when the spud can is penetrated through the bottom of the seam is reduced; And a spandan can for a floating suspension.

The horizontal section of the support may be circular.

The through hole may include an upper through hole and a lower through hole; Wherein a boundary of the upper through-hole is formed by an upper inner circumferential surface, and a boundary of the lower through-hole is formed by a horizontal cross section of the support portion, the shape and area of the lower through- And the lower inner circumferential surface is formed to be enlarged as the height of the support portion becomes lower.

A conical tip portion formed at a lower end of the support portion and pointed downward; As shown in FIG.

The through-hole formed by the horizontal cross-section of the support portion may have a circular shape.

The through hole formed by the horizontal cross section of the support portion,

And can have a shape in which two arcs having the same central angle and different radii are connected.

The through holes may be plural.

The support portion has a truncated cone shape, and the slope of the cone of the tip portion may be larger than the slope of the truncated cone of the support portion.

The through hole may penetrate the support portion in the vertical direction.

According to another aspect of the present invention, there is provided a method of supporting a jack-up rig in an underwater ground using a spud can provided in a jack-up rig for a floating dive, the method comprising: Wherein the gravel of the penetrating ground is discharged to the upper portion of the sped can through a through hole formed in a support forming a body of the spud can provided at the lower end of the jack up league; The gravel in the through-hole is not discharged to the upper part of the sped can due to the pressure of the gravel discharged to the upper part of the sprue can through the through-hole; The method of the present invention is a method for intruding a seabed ground using a spud can for a floating suspended body.

Terminating intrusion of the spurred can; As shown in FIG.

According to the present invention, the punch-through phenomenon occurring when the jack-up league is introduced into the seabed ground can be remarkably reduced, so that the stability in the process of intrusion of the jack-up league into the seabed ground is greatly improved.

FIG. 1 is a graph showing a punch-through phenomenon that may occur during the operation of a jack-up league in the submarine ground penetration.
FIG. 2 is a plan view showing a top view of a floating suspension can according to the first embodiment of the present invention.
3 is a side view showing a side view of a sprue can for a marine suspension according to a first embodiment of the present invention.
4 is a vertical cross-sectional view showing a vertically cut-off state of the spud can for a suspended body according to the first embodiment of the present invention.
FIG. 5 is a plan view showing a top view of a sprue can for a marine suspension according to a second embodiment of the present invention.
6 is a side view showing a side view of a sprue can for a marine suspension according to a second embodiment of the present invention.
FIG. 7 is a vertical cross-sectional view showing a vertically cut view of a spandan can for a suspended body according to a second embodiment of the present invention.
FIG. 8 is a graph showing penetration resistance according to penetration depth in a case where a spud can for a suspended body according to the present invention is applied and a conventional spud can for a floating body according to the present invention are applied.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention will be described with reference to the embodiments shown in the drawings, but it is to be understood that various modifications and equivalent embodiments may be made by those skilled in the art without departing from the scope of the present invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

FIG. 2 is a plan view showing a top view of a floating suspension can according to the first embodiment of the present invention, and FIG. 3 is a side view of the floating suspension can according to the first embodiment of the present invention. 4 is a vertical cross-sectional view showing a vertically cut-off state of the spud can for a suspended body according to the first embodiment of the present invention.

2 to 4, a spudcan 1 for a floating suspension according to a first embodiment of the present invention includes a supporting part 10 constituting the body of the spud can 1 and a supporting part 10 constituting the body of the spud can 1, And a pointed portion 20 which is formed to be pointed downward. The tip portion 20 may have a conical shape. 2 to 4, the tip end portion 20 may be formed at the center of the lower end of the support portion. As described above, the spud can 1 is provided at the lower end of the jack up league and serves to penetrate the seabed ground.

Further, the lower portion of the support portion 10 may have a truncated cone shape. At this time, the slope of the cut cone in the lower portion of the support portion and the slope of the tip portion 20 in the conical shape may be different from each other. At this time, the cone slope of the tip portion 20 may be larger than the slope of the cut cone of the lower portion of the support portion.

The support portion 10 constituting the body of the sprue can 1 receives the driving force from a marine structure such as a jack-up league during the penetration of the seabed ground and performs the penetration of the seabed ground. After the penetration of the seabed ground is completed, And serves to support a marine structure such as a jack-up rig. As shown in FIG. 2, the support portion 10 may have a plate shape. In addition, the shape of the support portion 10 viewed from above and the horizontal cross-section of the support portion 10 may be circular.

The tip portion 20 provided at the lower end of the support portion 10 can make the process of penetrating the bottom of the spandan can 1 more efficiently. That is, when the supporting portion 10 has a plate shape, the penetration resistance increases and the penetration of the bottom of the seabed may not occur smoothly. Thus, the inclined bottom portion 20 is formed to have a downward point, Lt; / RTI > In addition, when the penetration of the seabed ground is completed, the leading end portion 20 may serve as a wedge so that the spud can 1 can be firmly fixed to the seabed ground.

In the meantime, a through hole 100 is formed in a support portion 10 of a spud can for a floating surface suspension according to the first embodiment of the present invention. 2 to 4, the through hole 100 is formed to penetrate the support portion 10 in the vertical direction. For example, the through hole 100 may be formed to penetrate the support portion 10 in the vertical direction. Further, when the supporting portion 10 is cut in the horizontal direction, the through hole 100 may be circular. In addition, the through hole 100 may have a plurality of holes. As shown in FIG. 2, the through holes 100 may be formed symmetrically up, down, left, and right.

As described above, the penetration resistance generated in the process of penetrating the bottom of the spud can is proportional to the stiffness of the seabed ground and the horizontal cross-sectional area of the spud can. Accordingly, when the through hole is present as in the first embodiment of the present invention, the horizontal cross-sectional area of the sprung can decreases and the penetration resistance decreases.

Referring to FIG. 1 and explaining the effect of the present invention, the graph shown in FIG. 1 moves to the left as a whole due to a decrease in penetration resistance. In particular, the effect of reducing the penetration resistance due to the present invention can be large at the initial penetration stage of the seabed ground where punchthrough occurs. Thus, the first point of Fig. 1 moves to the left. Therefore, the second point in Fig. 1 also moves to the upper left. Therefore, the second region where the punchthrough phenomenon occurs can be reduced or eliminated.

Also, according to the present invention, in the course of penetration of the submarine ground by the sped can, the gravel of the seabed ground through which the spud can is penetrated is discharged to the upper portion of the sped can through the through hole.

When there is no through hole in the sprung can, the gravel of the seabed ground through which the spud can is penetrated is pushed out to the outside of the sprue can, and then discharged to the upper part of the sprue can. However, when the strength of the seabed ground is large, the soil of the seabed ground can not be properly pushed out to the outer periphery of the spandan can, so that the penetration resistance is increased, so that the penetration of the seabed ground is not smoothly performed. However, according to the first embodiment of the present invention, even when the strength of the seabed ground is large, the gravel of the seabed ground can be discharged to the upper part of the spud can through the through hole, so that the penetration of the seabed ground can be smoothly performed.

When the penetration process of the seabed ground is completed, the spud cans are fixed to the bottom of the seabed to support the suspended sediment. Unlike the penetration process of the seabed ground, sufficient penetration resistance should be ensured. In other words, the penetration resistance should be small in order to penetrate the submarine ground without causing or reducing the punchthrough phenomenon, but the penetration resistance must be sufficiently large to stably support the floating suspended matter. On the other hand, when the spud can is penetrated over a certain depth of the seabed ground, the strength of the seabed ground increases, and at the same time, the pressure of the gravel existing in the upper part increases as the spud can is penetrated. Therefore, when the water penetrates more than a certain depth of the seabed ground, the soil is filled in the through hole formed in the sprue can of the present invention, and the gravel charged in the through hole by the pressure above and below the spur can is not discharged from the sprue can. Since the penetration resistance is the same as that of the decanter, the floating suspended matter can be stably supported after the bottom penetration is completed.

2 to 4, the through hole 100 may include an upper through hole 102 forming an upper portion of the through hole and a lower through hole 104 forming a lower portion of the through hole. have.

2 to 4, the surface forming the upper through-hole 102 is an upper inner circumferential surface 112, and the lower through-hole 104 is formed in the lower surface of the upper through- Is a lower inner circumferential surface 114. The upper inner circumferential surface 112 can be formed such that the shape and area of the upper through hole 102 formed by the horizontal cross section of the support portion is constant regardless of the height of the support portion where the horizontal section of the support portion 10 is formed, The shape and area of the lower through hole 104 formed by the horizontal cross section of the support portion 114 may be enlarged as the height of the support portion 10 where the horizontal cross section of the support portion 10 is formed is reduced.

As described above, when a through hole is formed in the sprue can, penetration of the seabed ground can be relatively easily performed because the penetration resistance is reduced during the penetration of the seabed ground.

However, even if a through-hole exists, a part of the soil from the seabed ground through which the spudded can penetrate can move to the outer periphery of the sped can without passing through the through-hole. In this case, the penetration resistance is large as compared with the case where all the earth and sand in the seabed ground through which the spudded can penetrate passes through the through hole. Therefore, it is possible to further reduce the penetration resistance by enlarging the horizontal area of the lower through-hole so that all or most of the gravel in the seabed ground through which the spudded can penetrate penetrates the through hole, thereby minimizing the penetration resistance can do.

FIG. 5 is a plan view showing a top view of a sprue can for a marine suspension according to a second embodiment of the present invention, FIG. 6 is a side view of a sprue can for a marine suspension according to a second embodiment of the present invention And FIG. 7 is a vertical sectional view showing a state in which the spud can for a suspended body according to the second embodiment of the present invention is vertically cut.

5 to 7 and the reference numerals shown in FIGS. 2 to 4 are identical to each other, and the same reference numerals are used for the same reference numerals. Therefore, in the second embodiment of the present invention, differences from the first embodiment of the present invention will be mainly described.

5 to 7, a plurality of through holes 200 are formed in a supporting portion 10 in the same manner as the spud can for a floating surface suspension according to the first embodiment of the present invention, And a conical tip portion 20 may be formed at the center of the lower end of the support portion 10. The through hole 200 may be formed so as to penetrate through the support portion 10 in the vertical direction similar to the first embodiment of the present invention. For example, the through hole 200 may penetrate the support portion 10 in the vertical direction .

As shown in FIG. 5, the through hole 200 when viewed from above, or the through hole 200 of the cross section cut in the horizontal direction of the support portion of the sprue can for a floating suspension according to the second embodiment of the present invention, And may be formed by connecting two arcs having the same center angle and different radii. In this case, the centers of the two arcs having the same center angle and different radii may be the same as the centers of the supports when the supports 10 have a circular plate shape.

A spandan can for a floating suspension according to a second embodiment of the present invention comprises a supporting part 10 constituting the body of the spud can, a tip part 20 formed at the lower end of the supporting part 10, (220).

5 to 7, the lower portion of the support portion 10 may have a truncated conical shape, and the truncated portion 20 may have a conical shape. At this time, the slope of the cut cone in the lower portion of the support portion and the slope of the tip portion 20 in the conical shape may be different from each other. At this time, the cone slope of the tip portion 20 may be larger than the slope of the cut cone of the lower portion of the support portion. When the spud can has such a shape, the lower part of the spud can 1 has an empty structure. Therefore, when the spud can is introduced into the bottom of the can, the soil can not move to the outside of the spud can, To the upper portion of the spad can.

According to the second embodiment of the present invention, the soil of the seabed ground can be moved to the upper part of the spad can through the through-hole of the spad can in the process of penetrating the bottom of the spad can similar to the first embodiment of the present invention. In addition, according to the second embodiment of the present invention, the bottom hollow structure of the spud cans for suspended solids allows the whole or the majority of the soil to penetrate through the penetrating holes, It is possible to reduce the penetration resistance by allowing the gravel of the seabed ground to move to the upper part of the sprue can through the through hole.

FIG. 8 is a graph showing penetration resistance according to penetration depths in a case where a spud can for a suspended body according to the present invention is applied and a conventional spud can for a floating body according to the present invention are applied.

As described above, the spur can applied to the conventional sponge for suspended solids has no through-hole. Therefore, the contents described in Fig. 1 can be applied. That is, referring to FIG. 8, a conventional sparad can applied graph (hereinafter referred to as G1) will be described. As the penetration depth is increased in the process of penetrating the seabed ground using the spud can, the penetration resistance is increased. However, since the strength of the seabed ground does not increase constantly, this tendency is not constant, and a section in which the penetration resistance decreases sharply occurs. In FIG. 8, the intrusion depth at which the intrusion resistance is sharply reduced at G1 is shown to be about 15 meters. As described above, in the section where the penetration resistance is rapidly decreased, the strength of the seabed ground supporting the spud can is weak, so that a punch-through phenomenon occurs in which the spud can can sink rapidly. This punch-through phenomenon occurs until the penetration depth reaches the penetration resistance just before the punch-through phenomenon occurs. In G1, such penetration depth is shown to be about 25 meters. Therefore, in G1, a punchthrough phenomenon is shown to occur in a section having a penetration depth of 15 to 25 meters. However, these specific numerical values are merely illustrative and can vary widely depending on the specific structure of the seabed ground where intrusion occurs.

On the other hand, the operation of the floating suspension spandan can according to the present invention will be described with reference to the present invention spurdane can application graph (G2).

As shown in G2, the intrusion resistance is relatively decreased in comparison with G1 due to the existence of through holes at the initial stage of penetration. Particularly, according to the present invention, since the graph of G2 before the punch through phenomenon occurs is shifted to the left relative to G1, the point where the punch through occurred in the case of applying the conventional spandex for marine suspension The interval in which the intrusion resistance is not abruptly changed or the intrusion resistance is abruptly changed is remarkably reduced. Therefore, the punch-through phenomenon can be reduced or eliminated.

As described above, as the penetration depth increases, the strength of the seabed ground increases, and due to the pressure of the gravel existing in the upper part of the seabed ground penetrated by the spudded can, The through hole of the can is clogged with the soil. Therefore, at the time when the penetration of the seabed ground is completed, sufficient penetration resistance is secured so that the spud can can support the floating float. In FIG. 8, the penetration resistance is further increased in the case where the spud can for a floating suspension according to the present invention is applied in a section having a penetration depth of about 15 meters or more.

Hereinafter, a method for intruding a submarine ground using a spud can for a floating surface suspension according to the present invention will be described.

First, the spud can that reaches the top of the seabed ground begins to penetrate into the bottom of the seabed. As described above, since the supporting part constituting the body of the sprue can according to the present invention forms a through hole, the soil that forms the bottom of the seam is penetrated through the through hole into the bottom of the sprue can And is discharged to the upper part of the sprung can.

Thereafter, the penetration resistance increases according to the above-described principle after the penetration of the seabed ground sufficiently, and the gravels in the through holes are not discharged to the upper part of the sprue can due to the pressure of the gravel discharged to the upper part of the sprue can.

On the other hand, if the soil is not discharged to the upper part of the spur can, the spur can can no longer penetrate the bottom of the spur can, so the operation of penetrating the bottom of the spur can is also terminated. In terms of time, a moment when the soil inside the through hole can not be discharged to the upper part of the spud can and a moment when the bottom ground penetration work is finished can be made at the same time. However, from the viewpoint of causality, it can be seen that the soil inside the through hole is not discharged to the upper part of the spud can, so that the submarine ground penetration work is terminated.

1 - Spreadcan
10 - Support
20 -
100, 200 - through hole
112 - upper inner peripheral surface
114 - Lower inner peripheral surface
220 - Ring
G1 - Graph when applying conventional spandan cans
G2 - Graph of application of spandcane of the present invention
R1 - punch through area

Claims (11)

In a spudcan provided in a jack up league for floating suspended matter,
A support portion constituting a body of the sprung can provided at a lower end of the jack up league; And
A penetrating hole penetrating the supporting portion in a vertical direction so that penetration resistance generated when the spud can is penetrated through the seabed ground is reduced; / RTI >
When the spud can is penetrated through the seabed ground, the gravel of the seabed ground is discharged to the upper part of the spud can through the through-hole,
Wherein the through hole includes an upper through hole and a lower through hole,
The boundary of the upper through hole is formed by an upper inner peripheral surface,
The boundary of the lower through-hole is formed by a lower inner circumferential surface formed so as to be enlarged as the height of the support portion in which the horizontal cross-section of the support portion is formed is reduced by the shape and area of the lower through- ≪ / RTI >
Spandan cans for suspended solids. The method according to claim 1,
The horizontal section of the support is circular,
Spandan cans for suspended solids. delete The method according to claim 1,
A conical tip portion formed at a lower end of the support portion and pointed downward; ≪ / RTI >
Spandan cans for suspended solids. The method according to claim 1,
Wherein the through hole formed by the horizontal cross section of the support portion has a circular shape,
Spandan cans for suspended solids. The method according to claim 1,
The through hole formed by the horizontal cross section of the support portion,
And having a shape in which two arcs having the same central angle and different radii are connected to each other,
Spandan cans for suspended solids. The method according to claim 1,
The through-hole includes a plurality of through-
Spandan cans for suspended solids. The method of claim 4,
Wherein the support has a truncated cone shape,
Wherein the inclination of the cone of the tip portion is larger than the inclination of the cut cone of the support portion,
Spandan cans for suspended solids. The method according to claim 1,
Wherein the through hole penetrates the support portion in the vertical direction,
Spandan cans for suspended solids. A method for supporting a jack-up rig in a water underground using a spud can provided in a jack-up rig for a floating suspended body,
(a) As the jack-up lee is lowered, the gravel of the ground through which the spud can is penetrated is discharged to the upper part of the sprue can through a through-hole formed in a support forming a body of the sprue can provided at the lower end of the jack- step;
(b) the gravel in the through-hole is not discharged to the upper part of the spud can by the pressure of the gravel discharged to the upper part of the sprue can through the through-hole; Lt; / RTI >
The penetrating hole is formed to penetrate the supporting portion in the up and down direction so that the penetration resistance generated when the spud can is penetrated into the bottom of the seam is reduced,
Wherein the through hole includes an upper through hole and a lower through hole,
The boundary of the upper through hole is formed by an upper inner peripheral surface,
The boundary of the lower through-hole is formed by a lower inner circumferential surface formed so as to be enlarged as the height of the support portion in which the horizontal cross-section of the support portion is formed is reduced by the shape and area of the lower through- ≪ / RTI >
Submarine ground penetration method using spuddane for suspended solids. The method of claim 10,
(c) ending the submarine penetration of the sped can; Further comprising:
In the step (a), the intrusion resistance is reduced by discharging the gravel of the seabed ground through the through holes,
Wherein in the step (c), the penetration hole is clogged by the pressure of the gravel discharged to the upper part of the spud can, so that the suspended suspension can be stably supported with the same penetration resistance as the spud can without the through hole.
Submarine ground penetration method using spuddane for suspended solids.
KR1020150129604A 2015-09-14 2015-09-14 Spudcan used for floating vessel KR101837098B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020150129604A KR101837098B1 (en) 2015-09-14 2015-09-14 Spudcan used for floating vessel
PCT/KR2016/010231 WO2017048004A1 (en) 2015-09-14 2016-09-12 Spudcan of offshore structure and ocean floor penetrating method using said spudcan
AU2016324439A AU2016324439A1 (en) 2015-09-14 2016-09-12 Spudcan of offshore structure and ocean floor penetrating method using said spudcan
GB1806106.9A GB2559286A (en) 2015-09-14 2016-09-12 Spudcan of offshore structure and ocean floor penetrating method using said spudcan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150129604A KR101837098B1 (en) 2015-09-14 2015-09-14 Spudcan used for floating vessel

Publications (2)

Publication Number Publication Date
KR20170032514A KR20170032514A (en) 2017-03-23
KR101837098B1 true KR101837098B1 (en) 2018-03-12

Family

ID=58289154

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150129604A KR101837098B1 (en) 2015-09-14 2015-09-14 Spudcan used for floating vessel

Country Status (4)

Country Link
KR (1) KR101837098B1 (en)
AU (1) AU2016324439A1 (en)
GB (1) GB2559286A (en)
WO (1) WO2017048004A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102006696B1 (en) 2017-11-28 2019-08-02 삼성중공업 주식회사 Spudcan with replaceable structure
KR102016315B1 (en) 2017-12-08 2019-08-30 삼성중공업 주식회사 Spudcan structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101434580B1 (en) * 2013-07-11 2014-08-27 삼성중공업 주식회사 Hybrid jack-up drilling and production system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8011857B2 (en) * 2005-09-13 2011-09-06 Offshore Technology Development Pte Ltd Extraction system for removable marine footing
SG130952A1 (en) * 2005-09-13 2007-04-26 Offshore Technology Dev Pte Lt Extraction of foundation in offshore platforms
US8668408B2 (en) * 2011-03-09 2014-03-11 Keppel Offshore & Marine Technology Centre Pte Ltd Skirted foundation for penetrating soft material
KR101359653B1 (en) * 2012-07-04 2014-02-06 삼성중공업 주식회사 Supporting leg apparatus of floating structure
KR101488290B1 (en) * 2013-11-15 2015-02-02 대우조선해양 주식회사 Spud apparatus for jack-up rig

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101434580B1 (en) * 2013-07-11 2014-08-27 삼성중공업 주식회사 Hybrid jack-up drilling and production system

Also Published As

Publication number Publication date
AU2016324439A1 (en) 2018-04-26
WO2017048004A1 (en) 2017-03-23
GB201806106D0 (en) 2018-05-30
KR20170032514A (en) 2017-03-23
GB2559286A (en) 2018-08-01

Similar Documents

Publication Publication Date Title
US8668408B2 (en) Skirted foundation for penetrating soft material
US20090297276A1 (en) Offshore foundation system with integral elements for preloading and extracting
KR101837098B1 (en) Spudcan used for floating vessel
US9574316B2 (en) Suction foundation having enhanced self-weight penetration and construction method thereof
US20160032550A1 (en) Passive Grout Seal
KR102066144B1 (en) Suction foundation using inner wall and offshare structure using thereof
KR20170032917A (en) Installation method of jacket structure for supporting offshore structure
KR20150050618A (en) Sustion Pile
KR101732599B1 (en) Spudcan of floating structure
US3429133A (en) Offshore tower
KR20130117486A (en) Support structure for top side deck jacking
CN102660946A (en) Grouting pile head of tubular pile and application method thereof
US2661600A (en) Underwater drilling derrick
CN103485341A (en) Double-truncated-cone type pile shoe
CN106544995A (en) Sleeve drilling spud-can
CN108425638A (en) The enhanced guide-tube structure of axial stability and its application method
CN104234039B (en) The displacement apparatus of a kind of cast-in-situ bored pile emptying aperture part implant and method
KR100743348B1 (en) Joint cab of concrete pile
KR102048564B1 (en) Suction foundation using rubber plate and offshare structure using thereof
KR101557441B1 (en) Vessel or ocean having jack up leg
CN202577290U (en) Pipe pile grouting pile head
KR100420074B1 (en) A Construction Method of Underwater Concreting
KR20200126824A (en) Spudcan for jack-up rig leg
JP2015197014A (en) pumping well structure
KR102177844B1 (en) guide anchor for constructing file and construction method

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant