KR20150044563A - Cantilever rotation type derrick system and offshore plant with the same - Google Patents

Cantilever rotation type derrick system and offshore plant with the same Download PDF

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Publication number
KR20150044563A
KR20150044563A KR20130123764A KR20130123764A KR20150044563A KR 20150044563 A KR20150044563 A KR 20150044563A KR 20130123764 A KR20130123764 A KR 20130123764A KR 20130123764 A KR20130123764 A KR 20130123764A KR 20150044563 A KR20150044563 A KR 20150044563A
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KR
South Korea
Prior art keywords
boom
hull
derrick
offshore plant
cantilever
Prior art date
Application number
KR20130123764A
Other languages
Korean (ko)
Inventor
김현수
Original Assignee
대우조선해양 주식회사
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Publication date
Application filed by 대우조선해양 주식회사 filed Critical 대우조선해양 주식회사
Priority to KR20130123764A priority Critical patent/KR20150044563A/en
Publication of KR20150044563A publication Critical patent/KR20150044563A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/04—Arrangement of ship-based loading or unloading equipment for cargo or passengers of derricks, i.e. employing ships' masts
    • B63B27/06—Arrangement of ship-based loading or unloading equipment for cargo or passengers of derricks, i.e. employing ships' masts with slewing force exerted at pivoted end
    • 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
    • B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/60—Derricks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Jib Cranes (AREA)

Abstract

The present invention relates to a cantilever rotary derrick system and an offshore plant having the cantilever rotary derrick system. More specifically, the boom having a derrick is rotated from the hull, thereby simplifying the structure of the main deck and increasing the space utilization of the main deck. And the rotation area of the boom is mostly located outside the hull so that the possibility of collision between the worker and the equipment due to the rotation of the boom can be eliminated to provide a safe working environment and the area corresponding to the turning radius of the boom To a cantilever rotary derrick system capable of drastically expanding a drilling area and an offshore plant having the same.
According to the present invention, there is provided a derrick system of an offshore plant, comprising: a boom rotatably installed to extend outwardly to the hull; A derrick mounted on the boom movably along the longitudinal direction of the boom; A movement driving unit for moving the derrick from the boom; And a rotation driving unit for rotating the boom from the hull.

Description

[0001] The present invention relates to a cantilever rotary derrick system and an offshore plant having the same,

The present invention relates to a cantilever rotary derrick system and an offshore plant having the cantilever rotary derrick system. More particularly, the present invention not only simplifies the structure of the main deck, but also increases the space utilization and enlarges the drill area. To a cantilever rotary derrick system and an offshore plant having the same.

In general, offshore plants are used to develop resources such as oil and gas in the ocean. Drilling facilities such as drillship, semi-submersible drilling rig, jack- up rig. Derrick is installed in these offshore plants.

In a jack-up league in an offshore plant, it is difficult to change the position of the drilling equipment installed in the derrick because it is fixed to the seabed ground, and it is difficult to utilize the space on the main deck by forming the drapery necessary for the drilling by the derrick. Therefore, a cantilever movable type derrick system is used to solve these problems.

1 is a plan view showing a cantilever movable type derrick system of a jack up league according to the prior art.

1, a conventional cantilever movable derrick system 10 of a jack-up rig includes a boom 11 having a cantilever structure movably installed in a hull 20 of a jack-up rig, A boom drive section 12 for moving the boom 11 in the horizontal direction from the hull 20 and a derrick 13 provided on the boom 12. [

According to this conventional technique, the cantilever movable type derrick system 10 is constructed such that the boom 11 is located in the upper region of the hull 20 together with the derrick 13 when the boom 11 is moved. On the drilling site, The drilling equipment installed on the derrick 13 moves to the outside of the hull 11 so that the drilling operation can be performed.

However, this conventional cantilever movable derrick system 10 has a structure in which the boom 11 is slid on a skid provided on the main deck of the hull 20, And the sliding space of the boom 11 must be ensured, so that it is difficult to utilize the space of the main deck.

In addition, the conventional cantilever movable derrick system 10 has a high possibility of collision between the operator and the equipment due to the horizontal movement of the boom 11, and acts as a risk factor. The drilling area There is a problem in that it is limited.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to simplify the structure on the main deck of the hull and to increase the space utilization of the main deck, And to enlarge the drill area.

According to an aspect of the present invention, there is provided a derrick system of an offshore plant, comprising: a boom rotatably installed outside the hull; A derrick mounted on the boom movably along the longitudinal direction of the boom; A movement driving unit for moving the derrick from the boom; And a rotary drive unit for rotating the boom from the hull.

The end of the boom may be rotatably coupled to a corner portion of the hull.

And a boomrest provided so that the boom is positioned along the side of the hull.

According to another aspect of the present invention, there is provided a derrick system of an offshore plant, comprising: a boom rotatably installed to extend outwardly to a hull; And a derrick mounted on the boom, wherein the boom is rotated by the rotary drive from the hull.

According to another aspect of the present invention, there is provided an offshore plant comprising: a hull; And a derrick system provided on the hull, wherein the Derrick system is a cantilever rotary derrick system according to one or more of the above aspects of the invention.

A hook-up rig which is fixed to the sea floor by a plurality of legs provided so that the hull is elevated and lowered by a lifting and lowering driving part, a drill ship which is capable of controlling the position of the hull by a dynamic position control system, And a submersible drill rig.

According to the present invention, a boom provided with a derrick can be rotated from the hull to simplify the structure on the main deck, increase the space utilization of the main deck, The possibility of collision between the worker and the equipment due to the turning operation of the boom can be eliminated and a safe working environment can be provided and a drill area drill can be provided in a region corresponding to the turning radius of the boom area can be greatly enlarged.

1 is a plan view showing a cantilever movable derrick system of a jack-up rig according to the prior art;
2 is a plan view showing a cantilever rotary derrick system according to one embodiment of the present invention and a main part of an offshore plant having the same.
3 is a side view of a cantilever rotary derrick system according to one embodiment of the present invention and a major portion of an offshore plant having the same.

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.

2 and 3 are a plan view and a side view showing the essential parts of a cantilever rotary derrick system and an offshore plant having the cantilever rotary derrick system according to an embodiment of the present invention.

2 and 3, a cantilever rotary derrick system 100 according to one embodiment of the present invention includes a boom 110 that is rotatably installed to extend outwardly to a hull 210, A derrick 120 installed on the boom 110 and a rotation driving part 140 for rotating the boom 110 from the ship 210. The boom 110 includes a boom 110, And a movement driving unit 130 for moving the derrick 120 installed on the boom 110 from the boom 110.

The boom 110 may be horizontally formed to have a cantilever structure in the hull 210 and may have a strength to support the derrick 120 and the drilling rig installed therein, And may include a truss structure made up of various materials and structures including steel, and may have a truss structure made of steel, (113) may be formed.

The boom 110 is constructed such that the rotary shaft 111 that is vertical can be rotatably supported by the rotary support unit 160 provided on the hull 210 and the rotary radius of the boom 110 is maximized to the outside of the hull 210, The end portion may be rotatably coupled to the edge portion of the hull 210, thereby minimizing the interference between the operator and peripheral equipment during rotation. Conventionally, the length of the boom is limited due to the limited deck area. However, since the end of the boom is rotatably coupled to the corner of the hull by the rotary shaft as in the embodiment of the present invention, the boom can have a longer boom than the conventional boom.

The rotary support 160 supports the rotary shaft 111 of the boom 110 in a rotatable manner and supports the boom 110 to maintain the horizontal position at a predetermined position, A bearing member or the like may be provided between the rotating shaft 111 of the boom 110 and the rotating shaft 111 of the boom 110. [

The boom rest 150 may be provided on the hull 210 so that the boom rest 150 can be installed on the hull 210 to increase the space utilization of the main deck of the hull 210. [ The boom 110 may be positioned along the side of the boom 110. [

The derrick 120 is vertically installed on the boom 110 and is provided with drilling equipment for drilling oil and gas existing in the basement of the seabed and is used for offshore drilling, offshore casing, Riser lowering, etc., and can be used for all drilling operations, for example, a truss structure.

The derrick 120 can be slidably or movably installed on the rail 112 provided along the longitudinal direction of the boom 110 so as to be horizontally displaceable from the boom 110, So that it can smoothly move horizontally from the rail 112 and change its position.

The movement driving unit 130 transmits the driving force of a motor or an engine installed in the derrick 120 to a wheel or a roller provided in the derrick 120 through a reducer or a gear box, The derrick 120 may be connected to a winch installed on one side or both sides of the boom 110 by a cable so that the cable is wound or unwound by driving the winch so that the derrick 120 moves horizontally along the longitudinal direction of the boom 110, The present invention is not limited thereto and various driving force generating devices for moving the derrick 120 along the boom 110 and driving force generated therefrom can be horizontally moved to the derrick 120 And the like.

The rotary drive unit 140 rotates the boom 110 by providing a rotational force to the rotary shaft 111 of the boom 110. For this purpose, for example, the drive force of the motor provided on the ship 210 is transmitted through gears, The hydraulic cylinder is eccentrically connected to the rotary shaft 111 of the boom 110 so as to rotate the boom 110 in both directions by transmitting it to the rotary shaft 111 of the boom 110, The boom 110 may be rotated by applying an eccentric force to the rotary shaft 111 of the boom 110 or may be provided with various driving force generators and a transmission device for transmitting the driving force generated therefrom to the boom 110 for rotation .

The offshore plant 200 according to the present invention includes a hull 210 and a derrick system, wherein the derrick system can be a cantilever rotary derrick system 100 according to the present invention described above.

The marine plant 200 according to the present invention may be constructed as a jack-up structure in which the hull 210 is fixed to the sea floor by a plurality of legs 230 installed to be lifted and lowered by the lifting and lowering drive unit 220, ≪ / RTI >

The jack-up rig 200 is an offshore plant having three to six legs 230 vertically installed on a hull 210 so that the hull 210 can be raised and lowered by the elevation drive unit 220, It can be installed on the sea surface of Sanya. The hull 210 may have a planar structure close to a triangle when three legs 230 are formed. The hull 210 may have various planar structures depending on the number of the legs 230, the use thereof, the structural design, A main deck may be provided for providing a space for installing a pipe or equipment, and facilities for residential or working may be installed on the main deck. The lifting drive unit 220 transmits the driving force of the motor to the leg 210 by means of a rack and a pinion or transmits the driving force of the hydraulic cylinder to the leg 210 or by using various actuators and power transmission members, 210 to provide a driving force for ascending and descending. The leg 230 may have a truss structure formed by connecting a vertical member and an inclined member. The leg 230 may have various structures for supporting the hull 210. For the structural stability, a stiffener may be additionally installed .

In another embodiment of the offshore plant according to the present invention, the hull may be a drillship that can be positionally controlled by a dynamic positioning system (also referred to as a "DP system"), , A semi-submersible drilling rig in which the hull is supported by single or multiple pontoon floats.

According to the cantilever rotary derrick system having the above-described structure and the marine plant having the same, the boom 110 is rotated from the ship 210 by driving the rotation driving unit 140, The structure of the main deck can be simplified by requiring only the rotation driving unit 160 and the rotation driving unit 140.

The rotation support space of the derrick 120 on the main deck is relatively small and the space utilization of the main deck can be increased and the rotation area of the boom 110 is mostly located outside the hull 210, It is possible to provide a safe work environment by eliminating the possibility of collision between the worker and the equipment due to the rotation motion.

The drill area can be enlarged to an area corresponding to the turning radius of the boom 110 capable of horizontally moving the derrick 120 so that the area where the drilling equipment can be changed have.

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 or scope of the invention. It is self-evident.

110: boom 111: rotary shaft
112: rail 113: opening
120: derrick 130:
140: rotation driving part 150: boomrest
160: rotation supporting part 210:
220: lifting opening portion 230: leg

Claims (7)

In derrick systems of offshore plants,
A boom rotatably installed to extend outwardly to the hull;
A derrick mounted on the boom movably along the longitudinal direction of the boom;
A movement driving unit for moving the derrick from the boom; And
And a rotary drive for rotating the boom from the hull. The method according to claim 1,
The boom,
And an end is rotatably coupled to an edge portion of the hull. The method according to claim 1,
Further comprising a boomrest positioned such that the boom is positioned along a side of the hull. In derrick systems of offshore plants,
A boom rotatably installed to extend outwardly to the hull; And
And a derrick mounted on the boom,
Wherein the boom is rotated from the hull by a rotary drive. The method of claim 4,
The boom,
And an end is rotatably coupled to an edge portion of the hull. For offshore plants,
hull; And
And a derrick system provided on the hull,
The derrick system includes:
A marine plant, which is the cantilever rotary derrick system according to any one of claims 1 to 5. The method of claim 6,
A hook-up rig which is fixed to the sea floor by a plurality of legs provided so that the hull is elevated and lowered by a lifting and lowering driving part, a drill ship which is capable of controlling the position of the hull by a dynamic position control system, An offshore plant consisting of any of the submersible drilling rigs.
KR20130123764A 2013-10-17 2013-10-17 Cantilever rotation type derrick system and offshore plant with the same KR20150044563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130123764A KR20150044563A (en) 2013-10-17 2013-10-17 Cantilever rotation type derrick system and offshore plant with the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130123764A KR20150044563A (en) 2013-10-17 2013-10-17 Cantilever rotation type derrick system and offshore plant with the same

Publications (1)

Publication Number Publication Date
KR20150044563A true KR20150044563A (en) 2015-04-27

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