KR20150042595A - Moving system of riser tensioner - Google Patents

Moving system of riser tensioner Download PDF

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Publication number
KR20150042595A
KR20150042595A KR20130121451A KR20130121451A KR20150042595A KR 20150042595 A KR20150042595 A KR 20150042595A KR 20130121451 A KR20130121451 A KR 20130121451A KR 20130121451 A KR20130121451 A KR 20130121451A KR 20150042595 A KR20150042595 A KR 20150042595A
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KR
South Korea
Prior art keywords
riser
drill floor
moving
riser tensioner
activity
Prior art date
Application number
KR20130121451A
Other languages
Korean (ko)
Inventor
장민욱
백태수
Original Assignee
삼성중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR20130121451A priority Critical patent/KR20150042595A/en
Publication of KR20150042595A publication Critical patent/KR20150042595A/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
    • 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
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
    • E21B19/004—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions
    • E21B19/06—Elevators, i.e. rod- or tube-gripping devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B2003/147—Moon-pools, e.g. for offshore drilling vessels

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

Abstract

A moving system for a riser tensioner is disclosed. According to an embodiment of the present invention, the moving system for a riser tensioner comprises: a drill floor placed on an upper side of a moon pool; a moving carriage installed to be moved along the drill floor; and a riser tensioner coupled to a moving carriage to be moved, supporting a riser for the riser to be placed on the moon pool.

Description

[0001] MOVING SYSTEM OF RISER TENSIONER [0002]

The present invention relates to a riser tensioner moving system.

The use of various types of underground resources is rapidly increasing in accordance with industrialization, and consumption of resources such as crude oil and natural gas is increasing exponentially. Therefore, the development of underground resources is becoming a very important issue.

Recently, special vessels equipped with equipment for exploration and drilling to drill crude oil or natural gas deep under the sea, for example drillships, semi-submersible drilling rigs and floating production storage & offloading units , or FPSO) have been developed and are exploring and drilling for the production of crude oil and natural gas from the deep sea.

Deep sea oil and natural gas are transported from the production facilities of the seabed to a ship pending at sea through a riser connected to the piping system of the ship.

At this time, there is a swaying motion on the ship depending on the working environment of the sea such as a storm or a bird. In order to prevent the damage of the riser due to the excessive movement of the ship due to the movement of the ship, A riser tensioner is provided on the ship.

However, the conventional riser tensioner has a limitation in utilizing auxiliary activities in a fixed relation to the main activity.

Korean Patent Publication No. 2011-0057308 (published on June 14, 2011)

Embodiments of the present invention provide a riser tensioner moving system that can implement a drilling operation by efficiently utilizing the main and auxiliary activities by implementing a movable riser tensioner.

According to an aspect of the present invention, there is provided a drill floor positioned above a moon pool; A moving truck installed to be movable along the longitudinal direction of the drill floor; And a riser tensioner movement system including a riser tensioner that moves in association with the moving carriage and supports the riser so that the riser is located in the door frame.

The drill floor may include a plurality of riser through holes.

The riser tensioner moving system may further include a linear guide rail formed along the longitudinal direction of the drill floor to provide a path of movement of the moving truck.

The guide rail may include a rail.

Wherein the moving bogie comprises: a pinion gear meshing with the raceway gear; And a driving unit for rotating the pinion gear.

The guide rails may be formed on the upper and lower sides of the drill floor, respectively.

The moving bogie may include a cross-section of a truncated cone to enclose the edge of the drill floor.

According to an embodiment of the present invention, a riser tensioner can be movably implemented to increase utilization of a plurality of activities in a double-activity type derrick system having two or more activities. Thus, In addition to activities, drilling operations can be performed by increasing the utilization of assistive activities

Therefore, the drilling operation can be performed efficiently by using the main activity and the assistant activity.

1 shows a vessel with a riser tensioner moving system in accordance with an embodiment of the present invention.
2 is a perspective view schematically illustrating a riser tensioner moving system in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings, wherein like reference numerals refer to the same or corresponding components throughout the several views, Is omitted.

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.

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.

FIG. 1 is a view showing a ship having a riser tensioner moving system according to an embodiment of the present invention, and FIG. 2 is a perspective view schematically showing a riser tensioner moving system according to an embodiment of the present invention.

1 and 2, a riser tensioner moving system 1000 according to an embodiment of the present invention includes a drill floor 100, a moving carriage 200, and a riser tensioner 300.

The drill floor 100 is a member positioned on the upper side of the moon pool 10 as shown in Fig.

The moving carriage 200 is a device installed so as to be movable along the longitudinal direction of the drill floor 100.

The riser tensioner 300 is a device for supporting the riser 20 so that the riser 20 is positioned in the inner area of the door 10 located below the drill floor 100. According to the present embodiment, the riser tensioner 300 is coupled to the moving bogie 200 and is movable along the longitudinal direction of the drill floor 100.

As described above, according to the present embodiment, by implementing the movable riser tensioner, the drilling operation can be performed more efficiently by using the assistant activity 70 in addition to the main activity 60 performing the drilling operation provided in the derrick 40 .

The main activity 60 is installed in the derrick 40 to perform various operations for forming a borehole and includes a crown block 61 installed in the derrick 40 and a crown block 61 connected to the crown block 61 A top drive 63 supported by the traveling block 62 and coupled with the drill pipe to rotate the drill pipe, a top drive 63 And a rotary table 64 installed on the drill floor 100 so as to be positioned at a vertical lower portion of the drill floor 100.

The auxiliary activity 70 is an apparatus for performing the assembling work of the casing pipe constituting the riser 30 while the main activity 60 performs the work for forming the borehole, A traveling block 72 which is vertically moved by the crown block 71, an elevator block 73 which is installed below the traveling block 72 and supports the casing pipe, And a rotary table (74) installed on the drill floor (100) so as to be located at a vertically lower portion of the drill floor (72).

The auxiliary activities 70 may be installed in the derrick 40 adjacent to the main activity 60. The auxiliary activities 70 may be transmitted to the drill ship 40 through a pipe handling device, The casing pipe assembly, that is, the riser 30, can be formed by assembling the casing pipes.

Depending on the vessel, there may be a single activity type with one activity in derrick and a double activity type with more than one activity in derrick.

However, in the case of the double activity derrick having a plurality of activities, there is a problem in that the auxiliary activity 70 can not be utilized for the borehole forming operation because the auxiliary activity 70 does not have a separate riser tensioner.

According to the present embodiment, however, by moving the riser tensioner 300 along the side of the drill floor 100 using the moving bogie 200 movably coupled to the side of the drill floor 100, The drilling operation can be performed more efficiently by using the auxiliary activity 70 in addition to the main activity 60 performing the drilling operation.

Hereinafter, a specific configuration of the riser tensioner moving system 1000 according to the present embodiment will be described in detail with reference to FIGS. 1 and 2. FIG.

The drill floor 100 may be supported by a substructure 50. In this case, the drill floor 100 may be supported by the lower structure 50 and may support a derrick (oil well column) 40 located above the drill floor 100.

The door frame 10 is a cavity formed in a central portion of a hull 10 of a marine structure such as a drill ship or drilling rig and provides a passage for raising or lowering drilling equipment such as the riser 30.

As shown in FIG. 2, the drill floor 100 may include a plurality of riser through holes 110. Although not shown in detail, the rotary tables 64 and 74 described above may be provided in the plurality of riser through holes 110. In this case, the rotary tables 64 and 74 can be installed in the riser through holes 110 of the drill floor 100 so as to be positioned vertically below the top drives 63 and 73.

The moving carriage 200 can move the riser tensioner 300 toward the main activity 60 side or the auxiliary activity side 70 as needed.

In this way, the riser tensioner 300 can be moved as needed by using the moving bogie 200, so that, in addition to the main activity 60 that is provided in the derrick 40 and performs the drilling operation, An auxiliary activity 70 mainly performing an auxiliary operation such as a work can be used for a drilling operation such as the main activity 60. [

Therefore, it is possible to solve the problem that the assistant activity 70 can not be utilized for the borehole forming operation due to the fact that the auxiliary activity 70 is not provided with a separate riser tensioner as in the case of the conventional double activity derrick, The drilling operation can be performed by maximizing the efficiency of the drilling equipment.

For this purpose, a linear guide rail 400 may be formed along the longitudinal direction of the drill floor 100 to provide a movement path of the moving bogie 200.

The moving carriage 200 can reciprocate linearly along the guide rail 400.

Specifically, the guide rail 400 according to the present embodiment may be formed of a rack gear.

In this case, the moving carriage 200 may include a pinion gear (not shown) engaged with the guide rail 400 configured with a lattice size, and a driving unit (not shown) for rotating the pinion gear.

The driving unit (not shown) may be, for example, an electric motor that provides a rotational force to the pinion gear. The driving unit may be electrically connected to a control unit (not shown) and may be driven according to a control signal of the control unit.

In this embodiment, although the method of moving the moving truck 200 using the rack and the pinion gear is proposed, the moving truck 200 may be driven in various other ways as well. For example, the moving carriage 200 may be moved in a chain driving manner including a chain, a sprocket, and the like.

Although the present invention has been described with reference to the case where the guide rail 400 is formed of a lattice, the present invention is not necessarily limited thereto, and if necessary, the guide rail 400 may extend along the side of the drill floor 100 And may be formed in a guiding groove shape. Needless to say, the guide rail 400 may be implemented in various forms.

The guide rail 400 may be formed on at least one of the upper side and the lower side of the drill floor 100.

In the present embodiment, the guide rails 400 may be formed on the upper and lower sides of the drill floor 100, respectively, as shown in Fig. In this embodiment, the guide rail 400 may be formed to protrude upward and downward along the side of the drill floor 100, respectively.

In this case, as shown in FIG. 2, the moving carriage 200 corresponds to the guide rail 400 protruding from the upper and lower sides of the drill floor 100, so that the corner of the drill floor 100 can be covered. Shaped cross-section.

In this case, although not shown in detail, a pinion gear (not shown) fitted to the guide rail 400 and a driving unit (not shown) for rotating the pinion gear are mounted on a " 200 and the edge of the drill floor 100.

Since the movable carriage 200 is formed in a shape having a 'C' -shaped cross-section so as to surround the edge of the drill floor 100, the movable carriage 200 can be more firmly engaged with the guide rail 400 have. Thus, derailment of the moving carriage 200 can be prevented.

When the riser tensioner 300 adjusts the tension of the wire connected to the riser 30 according to the movement of the hull 10, even if the riser tensioner 300 swings by the stress transmitted through the wire, (200) can firmly support it.

The riser tensioner 300 may also adjust the tension of the wire connected to the riser 30 so that stress is transmitted to the riser 20 to minimize damage to the riser 20, Lt; / RTI > Since the specific configuration of the riser tensioner 300 is a well-known configuration, a detailed description thereof will be omitted here.

Thus, according to the present embodiment, the riser tensioner is movable along the side of the drill floor to increase the utilization of the plurality of activities in the double-activity type derrick system having two or more activities, The drilling operation can be performed by increasing the utilization of the auxiliary activity 70 in addition to the main activity 60 performing the drilling operation.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that those skilled in the art will appreciate that addition, alteration, deletion, or addition of components The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

1000: riser tensioner moving system 10: hull
20: a frame 30: a riser
40: Derrick 50: Substructure
60: main activity 61: crown block
62: Traveling block 63: Top drive
64: Rotary table 70: Auxiliary activities
71: Crown block 72: Traveling block
73: Elevator block 74: Rotary table
100: drill floor 110: riser through hole
200: moving carriage 300: riser tensioner
400: guide rail

Claims (7)

A drill floor located above the moon pool;
A moving truck installed to be movable along the drill floor; And
A riser tensioner coupled to the moving carriage and supporting the riser to position the riser in the door frame. The method according to claim 1,
Wherein the drill floor includes a plurality of riser through holes. The method according to claim 1,
Further comprising a guide rail formed along a longitudinal direction of the drill floor to provide a path of movement of the moving bogie. The method of claim 3,
Wherein the guide rail comprises a radial element. 5. The method of claim 4,
The moving bogie,
A pinion gear meshing with the pinion gear;
And a drive for rotating said pinion gear. The method of claim 3,
Wherein the guide rails are formed above and below the drill floor, respectively. The method according to claim 1,
Wherein the moving carriage has a trapezoidal cross-section to enclose an edge of the drill floor.
KR20130121451A 2013-10-11 2013-10-11 Moving system of riser tensioner KR20150042595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130121451A KR20150042595A (en) 2013-10-11 2013-10-11 Moving system of riser tensioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130121451A KR20150042595A (en) 2013-10-11 2013-10-11 Moving system of riser tensioner

Publications (1)

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KR20150042595A true KR20150042595A (en) 2015-04-21

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KR20130121451A KR20150042595A (en) 2013-10-11 2013-10-11 Moving system of riser tensioner

Country Status (1)

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