KR101672016B1

KR101672016B1 - Drilling rig

Info

Publication number: KR101672016B1
Application number: KR1020160012502A
Authority: KR
Inventors: 강부원; 고상기; 김성준; 강지윤; 오환엽; 이동훈
Original assignee: 삼성중공업 주식회사
Priority date: 2016-02-01
Filing date: 2016-02-01
Publication date: 2016-11-02

Abstract

A drilling apparatus is disclosed. A drilling apparatus according to one aspect of the present invention includes a drill derrick part provided on a drill floor, a hollow penetrating vertically so as to position a pipe therein, and an upper part of a drill derrick to move the pipe vertically A top drive unit moving up and down between the drill floors, and a transfer unit installed in the top drive unit to be able to contact the outer circumferential surface of the pipe, the transfer unit contacting the outer circumferential surface of the pipe and transferring the pipe vertically to the top drive unit.

Description

[0001] DRILLING RIG [0002]

The present invention relates to a drilling apparatus.

In order to explore underground resources such as crude oil and gas, ship-type drilling rigs such as fixed or floating marine structures and dredges installed on the sea are equipped with derrick to support various drilling equipments or to move up and down.

Derek is a tower-type large structure made of metal materials such as steel. The height of derrick is different according to the design, but it is getting bigger to about 100m.

Recently, many oil fields have been developed in the Black Sea. In order to enter the Black Sea, ships must pass through the Bosphorus. When crossing the Bosphorus, you must cross the Bosphorus Bridge and the maximum height of the vessel may be limited.

Korean Patent Laid-Open Publication No. 10-2015-0081130 (2015. 07. 13, top drive system and drilling offshore structure having the same)

Embodiments of the present invention are intended to provide a drilling apparatus capable of reducing the installation height.

According to an aspect of the present invention, there is provided a drill floor including a drill derrick portion provided on a drill floor, a hollow portion vertically penetrating the pipe to locate the pipe therein, and an upper portion of the drillder portion, And a transfer unit which is installed on the top drive unit so as to be able to contact the outer circumferential surface of the pipe and which is in contact with the outer circumferential surface of the pipe to transfer the pipe in the vertical direction with respect to the tower drive unit do.

Here, a driving unit for providing power for raising and lowering the top drive unit, a connection line unit for connecting the top drive unit and the driving unit to transmit the power provided by the driving unit to the top drive unit, and a support unit for supporting the connection line unit .

The top drive portion may include a rotating body for rotating the pipe, a first driving body for driving the rotating body, and a grip body for gripping the pipe to limit lateral movement of the pipe in the hollow.

The grip body may include a contact plate contacting the outer circumferential surface of the pipe and an elastic member providing a pressing force to the contact plate.

The conveying unit may include a roller body that rotates in contact with the outer peripheral surface of the pipe, and a second drive body that drives the roller body.

The conveying unit may include a belt conveyor that is driven to contact the outer peripheral surface of the pipe, and a third driving body that drives the belt conveyor.

According to the embodiments of the present invention, it is possible to grasp the intermediate point along the longitudinal direction of the pipe by the top drive portion including the hollow penetrating in the up-and-down direction so as to position the pipe therein, Since the derrick part can be installed lower than the entire length of the pipe, a drilling device capable of reducing the installation height can be realized.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a view of a drilling rig according to an embodiment of the invention.
Fig. 2 is a front view of the drilling apparatus shown in Fig. 1; Fig.
Fig. 3 is a view showing a state in which the tower drive unit is lowered by the drill floor in the drilling apparatus shown in Fig. 1; Fig.
4 is a view showing a top drive unit of the drilling apparatus shown in Fig.
5 is a cross-sectional view taken along line I-I 'of FIG. 4;
6 is a view showing a modified example of the feeding part and the grip body shown in Fig. 5;
Figure 7 is a cross-sectional view taken along line II-II 'of Figure 4;
8 is a view showing a modification of the conveyance unit shown in Fig.

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 a drilling apparatus 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 a drilling apparatus according to an embodiment of the present invention, Fig. 2 is a front view of the drilling apparatus shown in Fig. 1, Fig. 3 is a cross- Fig. 8 is a view showing a state in which the robot is descended to the floor.

1 to 3, a drilling apparatus 1000 according to an embodiment of the present invention includes a drilling unit 100, a top drive unit 200, and a transfer unit 300, and includes a drive unit 400, And may further include a connection line unit 500 and a support unit 600.

The drilling derrick part 100 is installed on the drill floor DF. The drill derrick part 100 is a metal structure that is installed to extend upward in the drill floor DF, and various equipment used for drilling can be supported by the drill derrick part 100 or moved up and down. The drill derrick part 100 may be composed of various shapes of beam, shape steel, steel plate and the like.

Movable vessels, such as marine structures (fixed or floating structures) or drilling rigs installed at the crude oil producing site, may include a drill floor (DF) installed higher than the deck and below the drill floor (DF) (MP) passing through the door frame (not shown). The drill derrick part 100 can be installed on the upper part of the mop MP to send various equipment to the seabed through the mop MP formed under the drill floor DF or to recover from the seabed.

The drilling derrick portion 100 may be comprised of a plurality of longitudinal frames extending upwardly on the drill floor DF and a plurality of transverse frames connecting the plurality of longitudinal frames, A brace frame installed between adjacent longitudinally arranged frames, between adjacent longitudinally arranged transverse frames and between adjacent disposed transverse frames, respectively, .

Here, the upward direction corresponds to the extending direction of the drilling derrick portion 100, that is, the longitudinal direction or the longitudinal direction of the drilling derrick portion 100, in the direction toward the upper portion of the drilling derrick portion 100 from the drill floor DF . The transverse direction is a direction intersecting the longitudinal direction of the drill derrick part 100.

The top drive unit 200 includes a hollow 210 penetrating vertically so as to position the pipe P therein. The hollows 210 of the top drive unit 200 can be opened to the outside through openings formed on the top and bottom surfaces of the top drive unit 200, respectively. The pipe P may be inserted into the hollow 210 of the top drive unit 200 and may be located inside the top drive unit 200.

Since the top drive unit 200 according to the present embodiment includes the hollow 210 formed therein so that the conventional top drive can hold the pipe in a manner different from the method of gripping the pipe The pipe can be gripped. That is, since the top drive unit 200 according to the present embodiment grasps the pipe P in a state where the pipe P is inserted into the hollow 210 formed inside the top drive unit 200, The top drive unit 200 according to the embodiment can hold an intermediate point along the longitudinal direction of the pipe P.

Accordingly, the height of the drill derrick 100 according to the present embodiment can be greatly reduced compared with the conventional drill bit. The top drive must be able to be spaced from the drill floor by the entire length of the minimum pipe and the derrick structure supporting the top drive must be separated from the drill floor of the top drive, Should be installed higher than the maximum separation distance from.

According to the present embodiment, the top drive unit 200 can hold an intermediate point along the longitudinal direction of the pipe P, so that the drill derrick 100 may be formed lower than the entire length of the pipe P . That is, the height of the drill derrick 100 according to the present embodiment can be greatly reduced compared with the height of the conventional derrick structure.

Due to the reduced height of the rigidly installed drilling derrick 100, it is possible to pass through a route that is subject to a maximum height restriction, such as the Centennial Bridge across the Panama Canal, the Murabakh Peace Bridge across the Suez Canal, or the Bosphorus Strait Bridge can do. Further, since the center of gravity of the marine structure or the ship where the drill derrick part 100 is installed can be lowered, a more stable offshore structure or ship can be realized.

On the other hand, the pipe P disposed in the hollow of the top drive unit 200 may include all of the tubular members used for the drilling operation. For example, the pipe P may be a drill pipe, A riser pipe or a casing pipe.

The top drive unit 200 moves up and down between the upper part of the drilling unit 100 and the drill floor DF so as to move the pipe P arranged in the hollow 210 in the vertical direction. That is to say, a downward movement is performed from the upper part of the drilling derrick part 100 toward the drill floor DF in order to move the pipe P downward through the door MP, P from the drill floor DF to the top of the drilling derrick 100 in order to tripping out.

The pipe P inserted into the hollow 210 of the top drive unit 200 and disposed inside the top drive unit 200 can be tripped or tripped as the top drive unit 200 moves up or down. have.

The transfer unit 300 is installed in the top drive unit 200 so as to be inserted into the hollow 210 of the top drive unit 200 and to be in contact with the outer circumferential surface of the pipe P disposed in the top drive unit 200, And contacts the outer circumferential surface of the pipe P to transfer the pipe P to the top drive unit 200 in the vertical direction.

1 to 3 illustrate that the transfer unit 300 is installed inside the top drive unit 200. The transfer unit 300 may be disposed outside the top drive unit 200, Or may be disposed on the upper portion or the lower portion so as to be exposed to the outside.

Since the top drive unit 200 grasps the intermediate point along the longitudinal direction of the pipe P, it is not possible to trip the entire pipe P to the door MP by only one downward movement of the top drive unit 200 Do. The transfer unit 300 may additionally trip the pipe P located at the upper portion of the top drive unit 200.

3, when the top drive unit 200 completes the downward movement and is disposed on the drill floor DF, only a part of the pipe P is tripped to the door MP. The transfer unit 300 can transfer the remaining part of the remaining pipe P to the MP without being tripped.

Meanwhile, the transfer unit 300 can selectively make contact with the outer peripheral surface of the pipe P. That is, when the pipe P is tripped or tripped out due to the upward / downward movement of the top drive unit 200, the transfer unit 300 can be kept apart from the outer peripheral surface of the pipe P. The transfer unit 300 may contact the outer circumferential surface of the pipe P so as to further trip or trip out a part of the pipe P when the elevation movement of the top drive unit 200 is completed.

The driving unit 400 provides power for moving the top driving unit 200 up and down. The driving unit 400 may include a winch, and may be a hydraulic or electric winch. The driving unit 400 may be installed on the drill floor DF in plural.

The connection line unit 500 connects the top drive unit 200 and the drive unit 400 to transmit the power provided by the drive unit 400 to the top drive unit 200. The connection line unit 500 may include a wire rope or the like and the wire rope may be wound or unwound by the driving unit 400 so that the top drive unit 200 may be coupled to the upper portion of the drilling unit 100 and the drill floor DF, It is possible to move up and down between the two wheels.

The support part 600 is installed in the drill derrick part 100 to support the connection line part 500 and the support part 600 can be composed of a plurality of pulleys.

The pipe P can be inserted into the hollow 210 in a state in which the top drive unit 200 is disposed on the drill floor DF . 1, the drill derrick 100 is provided with a pipe inlet (not shown) so that the pipe P can move without interfering with the drill derrick 100 while the pipe P is inserted into the hollow 210 of the top drive unit 200 E) may be formed.

When the insertion of the pipe P into the hollow 210 of the top drive unit 200 is completed, the top drive unit 200 performs the upward movement without gripping the pipe P. Only the top drive unit 200 moves upward along the longitudinal direction of the pipe P without moving the pipe P and when the top drive unit 200 rises to the top of the drilled derail unit 100, 200 hold an intermediate point along the longitudinal direction of the pipe P. [

The top drive unit 200 moves downward by the drill floor DF while moving the pipe P disposed inside thereof downward to the door MP. When the top drive unit 200 descends to the drill floor DF, the transfer unit 300 further transfers a part of the pipe P remaining on the top drive unit 200 to the top drive unit 200 The entire pipe P can be moved to the door MP.

When the pipe P is tripped out, the transfer unit 300 is operated in a state where the top drive unit 200 is disposed on the drill floor DF, or when the top drive unit 200 completes the upward movement, The entire pipe P can be tripped in such a manner that the transfer unit 300 is operated in a state in which the transfer unit 300 is disposed at the upper portion of the derrick unit 100. [

5 is a cross-sectional view taken along the line I-I 'of FIG. 4, and FIG. 6 is a view showing a modification of the conveyance unit and the grip body shown in FIG. 5 Fig.

FIG. 7 is a sectional view taken along line II-II 'of FIG. 4, and FIG. 8 is a view showing a modified example of the conveying portion shown in FIG.

4 and 5, a top drive unit 200 of a drilling apparatus 1000 according to an embodiment of the present invention includes a rotating body 220, a first driving body 230, and a grip body 240 Wherein the grip body 240 may include an urging plate 242 and an elastic member 244.

The top drive unit 200 may include a housing 205 having a receiving space formed therein to receive the rotating body 220, the first driving body 230, and the grip body 240. The rotating body 220, the first driving body 230, and the grip body 240 are accommodated in the inner space of the housing 205.

The rotating body 220 is inserted into the hollow 210 of the top drive unit 200 to rotate the pipe P disposed in the top drive unit 200. The pipe P may be rotated about the longitudinal axis by the rotating body 220. That is, the pipe P can be tripped or tripped out due to the upward / downward motion of the top drive unit 200, and at the same time, can be tripped or tripped out while being rotated by the rotating body 220 of the top drive unit 200 .

The first driving body 230 drives the rotating body 220. As shown in FIG. 4, the first driving body 230 may be disposed adjacent to the rotating body 220. The first driving body 230 may include a driving motor, a driving rod for transmitting the rotational motion of the driving motor to the rotating body 220, and a gear coupled to one end of the driving rod. At this time, a gear shape may be formed on one surface of the rotating body 220 so as to engage with a gear coupled to one end of the driving rod.

The grip body 240 grips the pipe P so as to restrict the lateral movement of the pipe P in the hollow 210 of the top drive unit 200. The grip body 240 may include an urging plate 242 contacting the outer circumferential surface of the pipe P and an elastic member 244 urging the urging plate 242.

The gripping body 240 grips the pipe P inserted in the hollow 210 of the top drive unit 200 so that the pipe P disposed inside the top drive unit 200 is gripped by the grip body 240 The lateral movement can be limited. The grip body 240 grips the pipe P so that the pipe P moves together with the top drive unit 200 in accordance with the ascending and descending movement of the top drive unit 200, The rotation can be transmitted to the pipe P.

While the transfer unit 300 is in operation, that is, the transfer unit 300 transfers the pipe P in the vertical direction with respect to the top drive unit 200, the grip member 240 is disengaged from the pipe P . That is, the grip body 240 can selectively contact the pipe P to grip the pipe P.

The urging plate 242 can be formed so as to correspond to the shape of the outer circumferential surface of the pipe P so as to be more firmly in contact with the outer peripheral surface of the pipe P and the elastic member 244 can be formed so that the urging plate 242 is more rigid And may provide restoring force to the contact plate 242 when the contact between the grip body 240 and the pipe P is released.

6, the top drive unit 200 according to the present embodiment does not include a separate grip body but includes a plurality of transfer parts 300 radially disposed along the periphery of the pipe P It can be installed to replace the grip body. That is, the transfer unit 300 may contact the outer circumferential surface of the pipe P to restrict the lateral movement of the pipe P.

6 and 7, the transfer unit 300 may include a roller body 310 rotating in contact with the outer peripheral surface of the pipe P and a second drive body 320 driving the roller body 310 have. The pipe P may be vertically conveyed by the roller body 310 rotating in contact with the outer peripheral surface of the pipe P and the second driving body 320 may include a motor.

As shown in FIG. 7, a plurality of feeders 300 may be installed along the longitudinal direction of the pipe P. The conveying unit 300 further includes a roller support body 330 for supporting the roller body 310 and an elastic body 340 for providing a pressing force to the roller body 310 when the pipe body P contacts the roller body 310 .

8, the transfer unit 300 may include a belt conveyor 350 that is driven to contact the outer circumferential surface of the pipe P, and a third drive unit 360 that drives the belt conveyor 350.

8, when the conveying unit 300 includes the belt conveyor 350 and the third driving unit 360, the belt conveyor 350 may include a conveying unit 300 for conveying the pipe P up and down Function as a grip body for restricting lateral movement of the pipe P in the hollow 210 can be realized at the same time.

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.

100: drilling derrick part 200: top drive part
205: housing 210: hollow
220: rotating body 230: first driving body
240: grip body 242:
244: elastic member 300:
310: roller body 320: second driving body
330: roller support body 340: elastic body
350: belt conveyor 360: third drive body
400: driving part 500: connection line part
600: Support part 1000: Excavation device
DF: Drill Floor MP:
P: pipe

Claims

A drilling derrick mounted on the drill floor;
A top drive part including a hollow penetrating upward and downward to place the pipe therein, and moving up and down between the upper part of the drilling derrick and the drill floor to move the pipe in the vertical direction; And
And a transfer unit installed on the top drive unit to be able to contact the outer circumferential surface of the pipe and contacting the outer circumferential surface of the pipe to transfer the pipe in the vertical direction with respect to the tower drive unit.

The method according to claim 1,
A driving unit for providing power for moving the top drive unit up and down;
A connection line unit connecting the top drive unit and the driving unit to transmit the power provided by the driving unit to the top drive unit; And
And a support portion provided on the drill derrick to support the connection line portion.

The method according to claim 1,
The top drive unit
A rotating body for rotating the pipe;
A first driving body for driving the rotating body; And
And a grip body for gripping the pipe to limit lateral movement of the pipe in the hollow.

The method of claim 3,
The grip body
A contact plate contacting the outer circumferential surface of the pipe; And
And an elastic member for applying a pressing force to the contact plate.

The method according to claim 1,
The conveying portion
A roller body rotating in contact with an outer peripheral surface of the pipe; And
And a second driving body for driving the roller body.

The method according to claim 1,
The conveying portion
A belt conveyor driven in contact with an outer peripheral surface of the pipe; And
And a third drive body for driving the belt conveyor.