KR101672018B1

KR101672018B1 - Drilling rig

Info

Publication number: KR101672018B1
Application number: KR1020160015797A
Authority: KR
Inventors: 오환엽; 김성준; 강부원; 강지윤; 고상기; 이동훈; 조승호
Original assignee: 삼성중공업 주식회사
Priority date: 2016-02-11
Filing date: 2016-02-11
Publication date: 2016-11-02

Abstract

A drilling apparatus is disclosed. A drilling apparatus according to an aspect of the present invention includes a drill derrick part provided on a drill floor, a hollow part formed so as to penetrate upward and downward to position a pipe therein, And a lift portion for lifting the top drive portion between the upper portion of the drilling derrick and the drill floor to move the drive portion and the pipe in the vertical direction.

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 dredging that are installed on the sea may be equipped with derrick to support various drilling rigs or move them 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 comprising: a drill derrick part provided on a drill floor; a top drive part including a hollow formed to penetrate in a vertical direction so as to position the pipe therein; And a lift portion for lifting the top drive portion between the upper portion of the drilling derrick portion and the drill floor to move the pipe in the vertical direction.

Here, the drill derrick part includes guide rails extending along the longitudinal direction, and the top drive part can move up and down along the guide rails.

The elevating portion may include a lifting body installed on the drilling derrick to move the top driving portion along the longitudinal direction of the drilling derrick.

The elevating portion includes a driving body for providing power for raising and lowering the top driving portion, a connecting line for connecting the top driving portion and the driving body to transmit the power provided by the driving body to the top driving portion, And may include a support.

The top drive unit includes a first body and a second body that are divided along the vertical direction and are hinged to each other at a side edge, and the hollow is open or closed from the side to the outside by the engagement or disconnection of the first body and the second body, Lt; / RTI >

The top drive portion may include a plurality of roller bodies that are selectively in contact with the outer circumferential surface of the pipe to rotate the pipe inserted in the hollow and rotate radially along the outer periphery of the pipe.

The top drive unit may be installed in plural along the longitudinal direction of the drill derrick.

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 view showing a state in which the tower drive unit is opened in the excavation apparatus shown in Fig. 1. Fig.
3 is a view showing a top drive unit of the drilling apparatus shown in Fig.
Fig. 4 is a view showing a state in which the top drive unit shown in Fig. 3 is opened. Fig.
Figure 5 is a cross-sectional view taken along line I-I 'of Figure 3;
6 is a view showing a state in which the roller body shown in Fig. 5 is in contact with the outer peripheral surface of the pipe.
Fig. 7 is a view showing a side surface of the drilling apparatus shown in Fig. 1; Fig.
8 is a view showing a state in which the tower drive unit is lowered in the excavation apparatus shown in Fig.
9 is a view showing a state in which a plurality of top drive units are installed in the excavation apparatus 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, and FIG. 2 is a view showing a state where a top drive unit is opened in the drilling apparatus shown in FIG.

Referring to FIGS. 1 and 2, a drilling apparatus 1000 according to an embodiment of the present invention includes a drilling derrick 100, a top drive unit 200, and a lift unit 300.

The drilling derrick part 100 is installed on the drill floor 10. The drill derrick part 100 is a metal structure that is installed to extend upward in the drill floor 10, and various equipment used for drilling can be supported by the drill derrick part 100 or moved up and down. The drill derrick portion 100 may be configured to include various shapes of beam, shape steel, steel plate, and the like.

Movable vessels, such as marine structures (fixed or floating structures) or drill rigs, installed in crude oil producing areas may include a drill floor 10 that is installed higher than the deck, and below the drill floor 10, A door leaf 20 can be formed. The drilling derrick part 100 may be installed on the top of the drum 20 to send various equipment to the seabed through the drum 20 formed below the drill floor 10 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 10 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 100, that is, the longitudinal direction or the longitudinal direction of the drilling derrick 100, in the direction toward the top of the drilling derrick 100 from the drill floor 10 . The transverse direction is a direction intersecting the longitudinal direction of the drill derrick part 100.

1 and 2 illustrate schematic shapes of the drill derrick part 100. As shown in FIG. That is, as mentioned above, the drilling derrick portion 100 can be installed in a tower shape composed of a plurality of longitudinal frames, a plurality of transverse frames, and a plurality of brace frames, Only the main portion of the drill derrick 100 is shown, and the overall shape of the drill derrick 100 may be different from that shown. However, the drilling derrick part 100 may include a part of the open area to secure the accessibility of the pipe 50 to the top drive part 200.

The top drive unit 200 includes a hollow 210 formed to vertically penetrate the pipe 50 to position the pipe 50 therein. The top drive unit 200 is openable and closable to insert the pipe 50 laterally into the hollow 210.

Since the hollow 210 of the top drive unit 200 is formed to penetrate in the vertical direction, openings are formed in the top and bottom surfaces of the top drive unit 200, respectively. The pipe 50 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 is configured to be openable and closable, the pipe 50 can be laterally inserted into the hollow 210 of the top drive unit 200. When the pipe 50 is laterally inserted into the hollow 210 of the top drive unit 200 as the top drive unit 200 is opened, the pipe 50 is inserted through the opening formed in the upper surface or the lower surface of the top drive unit 200, It is possible to insert the pipe 50 into the hollow 210 more easily than to place the pipe 50 in the inside of the top drive unit 200.

FIG. 1 shows a state in which the top drive unit 200 is closed, and FIG. 2 shows a state in which the top drive unit 200 is opened. 2, the pipe 50 can be more easily inserted laterally into the hollow 210 of the top drive unit 200 with the top drive unit 200 opened, The pipe 50 can be positioned inside the top drive unit 200 by closing the opening 200.

Since the top drive unit 200 according to the present embodiment includes the hollow 210 penetratingly formed therein, the conventional top drive unit can be manufactured in a different manner from the conventional method of gripping the pipe (gripping the upper end along the pipe length direction) The pipe can be gripped. That is, since the top drive unit 200 according to the present embodiment grasps the pipe 50 in a state where the pipe 50 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 50.

Accordingly, the height of the drill derrick 100 according to the present embodiment can be greatly reduced compared with the conventional drill bit. Since the top drive grasps the top along the longitudinal direction of the pipe in the conventional case, the top drive must be able to be separated 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 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 50, so that the drill derrick 100 can be mounted on a pipe (not shown) (50). 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.

Meanwhile, the pipe 50 disposed in the hollow 210 of the top drive unit 200 may include all the tubular members used in the drilling operation. For example, the pipe 50 may be a drill pipe, A riser pipe, or a casing pipe combined with a drill pipe of the present invention.

The elevating part 300 moves the tower driving part 200 between the upper part of the drilling derrick 100 and the drill floor 10 so as to move the pipe 50 in the vertical direction. That is, the elevating part 300 can elevate or lower the top driving part 200 with respect to the drilling derrick 100, and can be inserted into the hollow 210 of the top driving part 200, 50 can be moved up and down according to the upward / downward movement of the top drive unit 200.

The elevating part 300 moves the pipe 50 in a downward direction so as to perform a process of tripping in the pipe 50 to the well or the sea floor through the door 20. That is, The gripped top drive unit 200 is lowered from the upper part of the drilling derrick part 100 toward the drill floor 10. In contrast, in order to perform a process of tripping out (tripping out) the pipe 50 from the oil well or the seabed, that is, in order to move the pipe 50 upward, the elevation part 300 moves the pipe 50, The drive unit 200 is moved upward from the drill floor 10 toward the upper portion of the drilling unit 100.

The pipe 50 inserted into the hollow 210 of the top drive unit 200 and disposed inside the top drive unit 200 is moved upward or downward by the lifting unit 300 Tripped or tripped.

The drill derrick part 100 may include a guide rail 110 extending along the longitudinal direction and the top drive part 200 may be installed along the guide rail 110 formed on the drill derrick part 100 You can move up and down. At this time, the elevating part 300 is installed on the guide rail 110 of the drilling derrick part 100 so as to move up and down the top drive part 200, and moves up and down along the guide rail 110 of the drilling derrick part 100 (310). &Lt; / RTI >

The guide rail 110 of the drilling derrick part 100 may be recessed inwardly and formed in a groove shape extending along the longitudinal direction and the top drive part 200 may be formed as a guide of the drilling derrick part 100 And may include projections 225 (see FIGS. 3 and 4) that are inserted into the rails 110. The top drive unit 200 can move up and down more stably by moving up and down along the guide rails 110 of the drilling unit 100 during the up and down movement.

The elevating member 310 is installed on the guide rail 110 of the drilling unit 100 so as to protrude toward the top driving unit 200 to support the bottom of the top driving unit 200. The ascending / descending body 310 supporting the lower surface of the top drive unit 200 can move up and down the top drive unit 200 by moving along the guide rail 110.

As shown in FIGS. 1 and 2, the lifting unit 300 may include an actuator 320, a connecting line 330, and a support 340.

The driving body 320 provides power for moving the top driving unit 200 up and down. The drive body 320 may include a winch, and may be a hydraulic or electric winch. In addition, a plurality of drive bodies 320 may be provided on the drill floor 10 as required.

The connecting line 330 connects the lifting body 310 supporting the top driving unit 200 and the driving body 320 to transmit the power provided by the driving body 320 to the top driving unit 200. The connection line 330 may include a wire rope or the like. The connecting line 330 is wound or unwound by the driving body 320 so that the ascending / descending body 310 is lifted or lowered and the top driving unit 200 is moved up or down by the ascending / descending body 310, 100) and the drill floor (10).

The support 340 may be installed on the drill derrick 100 to support the connection line 330 and the support 340 may comprise a plurality of pulleys.

FIG. 3 is a view showing a top drive unit of the drilling apparatus shown in FIG. 1, and FIG. 4 is a diagram showing a state where the top drive unit shown in FIG. 3 is opened.

FIG. 5 is a sectional view taken along line I-I 'of FIG. 3, and FIG. 6 is a view showing a state where the roller body shown in FIG. 5 is in contact with the outer peripheral surface of the pipe.

3 and 4, the top drive unit 200 may include a first body 220 and a second body 230 that are divided along the vertical direction and hinged to each other at side edges thereof, The hollow 210 of the drive unit 200 may be opened from the side to the outside or closed from the outside by the engagement or disconnection of the first body 220 and the second body 230.

3 shows a state where the first body 220 and the second body 230 of the top drive unit 200 are coupled such that the hollow 210 of the top drive unit 200 is closed from the outside in the lateral direction 4 shows a state in which the first body 220 and the second body 230 of the top drive unit 200 are separated so that the hollow 210 of the top drive unit 200 is opened from the side to the outside have.

Since the first body 220 and the second body 230 are hinged to each other at the side edges, they can be coupled or separated by rotating about the vertical hinge shaft 240 in the up-and-down direction. The first body 220 and the second body 230 include semicylindrical grooves 221 and 231 formed to be recessed inward from the coupling surfaces respectively and the first body 220 and the second body 230 The grooves 221 of the first body and the grooves 231 of the second body may form the hollow 210.

5 and 6, the top drive unit 200 selectively rotates in contact with the outer circumferential surface of the pipe 50 to rotate the pipe 50 inserted in the hollow 210, And a plurality of roller bodies 250 radially disposed along the outer periphery.

The plurality of roller bodies 250 are inserted into the hollows 210 of the top drive unit 200 to rotate the pipes 50 disposed inside the top drive unit 200. The pipe 50 may be rotated about a longitudinal axis by a plurality of roller bodies 250. The pipe 50 can be tripped or tripped due to the upward / downward movement of the top drive unit 200, and rotated by the plurality of roller bodies 250 at the same time.

A driving motor for rotating the plurality of roller bodies 250 can be installed in the top drive unit 200 and a plurality of roller bodies 250 can be maintained in contact with the outer circumferential surface of the pipe 50, 50 may be provided with an elastic body for providing a pressing force or a restoring force.

The plurality of roller bodies 250 may function to grip the pipe 50 so as to restrict the lateral movement of the pipe 50 in the hollow 210 of the top drive unit 200. The plurality of roller bodies 250 contact the outer circumferential surface of the pipe 50 to press the outer circumferential surface of the pipe 50 in the lateral direction so that the gripping force of the top drive unit 200 to grip the pipe 50 can be increased.

FIG. 7 is a side view of the drilling apparatus shown in FIG. 1, and FIG. 8 is a view showing a state in which the top drive unit is lowered in the drilling apparatus shown in FIG.

7 and 8, the operation of the drilling apparatus 1000 according to the present embodiment will be described in detail. When the top drive unit 200 is disposed on the upper part of the drilling unit 100, May be inserted into the hollow 210 of the top drive unit 200. At this time, the top drive unit 200 may be opened so that the pipe 50 is laterally inserted into the hollow 210 of the top drive unit 200. When the pipe 50 is completely inserted, the top drive unit 200 is closed to firmly grip the pipe 50. Thus, the top drive unit 200 grips the intermediate point along the longitudinal direction of the pipe 50, can do.

The top drive unit 200 moves downward toward the drill floor 10 while grasping the pipe 50 disposed therein, so that the pipe 50 can be moved downward. The top drive unit 200 can advance the pipe 50 disposed inside and rotate the pipe 50 through the plurality of roller bodies 250 so that the pipe 50 rotates and moves downward . At this time, the pipe 50 may be engaged with the pipe 55 inserted in the door 20 first.

Since the top drive unit 200 grasps the intermediate point along the longitudinal direction of the pipe 50, the entire pipe 50 is tripped to the door 20 by only one downward movement of the top drive unit 200 I can not. That is, when the top drive unit 200 is lowered once, a part of the pipe 50 located at the lower part of the top drive unit 200 is tripped, but the part of the pipe 50 located at the upper part of the top drive unit 200 Some of the rest are not tripped. At this time, the top drive unit 200 can hold the pipe 50 without tripping (so that only the top drive unit is movable relative to the pipe) to trip the remaining part of the pipe 50 located at the top, The upper part of the derrick part 100 is gripped to grip the upper end of the pipe 50, and the downward movement can proceed again. The whole of the pipe 50 can be tripped by the repeated upward and downward movement of the top drive unit 200.

9 is a view showing a state in which a plurality of top drive units are installed in the excavation apparatus shown in FIG.

Referring to FIG. 9, a plurality of top drive units 200 may be installed along the longitudinal direction of the drilling unit 100. When a plurality of top drive units 200 are provided, continuity of the drilling operation can be improved. That is, while one top drive unit 205 grips and holds the pipe 50, the other top drive unit 200 moves upward while holding the pipe 50, So that the continuity of the drilling operation can be improved.

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

10: drill floor 20: moonpool
50: pipe 100: drill derrick part
110: Guide rail 200, 205: Top drive part
210, 215: hollow 220: first body
221, 231: groove 225: projection
230: second body 240: hinge shaft
250: roller body 300:
310, 315: ascending / descending member 1000: drilling device

Claims

A drilling derrick mounted on the drill floor;
A top drive unit including a hollow formed so as to penetrate in a vertical direction so as to position the pipe therein, the top drive unit being openable and closable to insert the pipe laterally into the hollow; And
And an elevating portion for elevating and lowering the tower drive portion between an upper portion of the drilling derrick portion and the drill floor to move the pipe vertically.

The method according to claim 1,
Wherein the drill derrick part includes a guide rail extending along the longitudinal direction,
Wherein the top drive unit moves up and down along the guide rails.

The method according to claim 1,
Wherein the elevating part includes an elevating body installed on the drilling derrick to move the tower driving part up and down and to move along the longitudinal direction of the drilling derrick.

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

5. The method according to any one of claims 1 to 4,
Wherein the top drive unit includes a first body and a second body that are divided along the vertical direction and are hinged to each other at side edges thereof,
Wherein the hollow is open laterally outwardly or externally closed by engagement or disengagement of the first body and the second body.

5. The method according to any one of claims 1 to 4,
The top drive unit
And a plurality of roller bodies rotating selectively in contact with the outer circumferential surface of the pipe to rotate the pipe inserted in the hollow and arranged radially along the outer periphery of the pipe.

5. The method according to any one of claims 1 to 4,
Wherein the plurality of top drive portions are provided along the longitudinal direction of the drilling derrick.