KR101750823B1

KR101750823B1 - a pipe delivery device and a drill ship including the same

Info

Publication number: KR101750823B1
Application number: KR1020150125697A
Authority: KR
Inventors: 조승호; 고두열; 석진욱; 유영준; 윤인근; 조기수; 하영열; 한창훈
Original assignee: 삼성중공업 주식회사
Priority date: 2015-09-04
Filing date: 2015-09-04
Publication date: 2017-06-26
Also published as: KR20170028717A

Abstract

A pipe transfer device is provided. The pipe conveying device includes a catwalk main body extending in one direction and having a guide surface for guiding the drill pipe; A trolley for moving the drill pipe along the guide surface; A roller that is exposed through a first incision portion of the guide surface of the catheter body and rotates about a rotation axis parallel to the one direction; And a torque wrench for gripping a plurality of drill pipes on the guide surface and for rotating and coupling at least one of the plurality of drill pipes.

Description

[0001] DESCRIPTION [0002] PIPE TRANSFER DEVICE AND DRILLING VESSEL CONTAINING THE SAME [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe transfer apparatus and a drilling vessel including the same, and more particularly, to a horizontal transfer apparatus for transferring a drill pipe or a casing to a drilling facility and a drilling vessel including the same.

With the development of oil drilling technology, development of submarine oil field is actively being carried out. In addition, the development of drilling facilities and a drill ship equipped with the drilling equipment suitable for deep-sea oil field development of the small area is accelerated.

Korean Patent No. KR 10-1399994

Drilling pipes with longer extension length as a whole should be used compared to land drilling, as drilling vessels must drill down to drill pipes from the sea to the seabed during drilling of deep water wells. In order to shorten the handling time and drilling time of the drill pipe, three to four drill pipes or casings are preassembled and stored in the set-back area, and then an assembly of stored drill pipes or casings, I am using it for work.

It may take a considerable amount of time to assemble the drill pipes for the stand building and to store the assembled stands in the setback area, which may hinder the speed of the entire drilling operation. Furthermore, complicated stand building work may require additional work equipment, which can result in increased equipment installation and maintenance costs.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a pipe transfer device capable of shortening drilling time and a drilling vessel including the same.

Another problem to be solved by the present invention is to provide a drilling vessel including a more economical drilling facility.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a pipe conveying apparatus comprising: a catwalk main body extending in one direction and having a guide surface for guiding a drill pipe; A trolley for moving the drill pipe along the guide surface; A roller that is exposed through a first incision portion of the guide surface and rotates about a rotation axis parallel to the one direction; And a torque wrench for grasping a plurality of drill pipes on the guide surface and rotating and coupling at least one of the plurality of drill pipes.

On the other hand, the at least one roller includes a first roller and a second roller, and a portion of the first roller and the second roller may pass over the first incision and rise above the guide surface or down the first incision .

On the other hand, it further includes a rolling support extending from one side of the catwalk body to the top of the one or more rollers.

Meanwhile, the rolling support includes a supporting base body fixedly disposed on one side of the catwalk body and extending vertically; An extension arm having one end rotatably coupled at a vertical end of the support body and the other end extending to an upper portion of the at least one roller; A third roller rotatably coupled to the other end of the extension arm; And an actuating cylinder for rotating the extension arm with respect to the support body.

Meanwhile, the torque wrench is exposed through a second cutout portion of which a part of the guide surface is cut, and can be raised or lowered above the guide surface through the second cutout portion.

Meanwhile, the torque wrench includes a wrench body including a U-shaped gripping surface opened toward an upper portion, and the wrench body may move up to the guide surface through the second cutout portion or descend below the second cutout portion.

Meanwhile, the torque wrench includes a wrench body; A support plate; A first extensible cylinder and a second extensible cylinder fastened to the support plate; And a first extending arm and a second extending arm extending horizontally outward from both sides in the horizontal direction of the wrench body, respectively, and rotatably connected to the first extensible cylinder and the second extensible cylinder, respectively; And a first gripper and a second gripper respectively coupled to the wrench body at upper ends of the U-shaped gripping surface of the wrench body.

On the other hand, the first gripper includes a first gripping cylinder and a first gripping member coupled to an end of the first gripping cylinder, and the second gripper includes a second gripping cylinder and a second gripping cylinder Wherein the first gripping member and the second gripping member are disposed on the guide surface by extension of the first gripping cylinder and the second gripping cylinder And one or more drill pipes are held in close contact with each other.

On the other hand, a first drill pipe and a second drill pipe are disposed on the guide surface, and when the one or more rollers are rotated, the second drill pipe is moved in the one direction toward the first drill pipe by the trolley And the torque wrench grasps the opposite end of the first drill pipe and the second drill pipe after rotation of the second drill pipe by the one or more rollers, The two drill pipe is rotated with respect to the first drill pipe.

1 is a schematic view illustrating a drilling operation of a drilling vessel including a drilling facility according to an embodiment of the present invention.
2 is an exemplary partial perspective view of a drilling vessel including a pipe transport apparatus and other drilling rig according to an embodiment of the present invention.
3 is a perspective view showing a pipe transporting apparatus according to an embodiment of the present invention.
4 is a cross-sectional view taken along line IV-IV 'of FIG. 3, according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view of the pipe transporting device according to the embodiment of FIG. 3 taken along the line VV '.
FIG. 6 is a perspective view illustrating a state where one drill pipe is supplied to the pipe conveying apparatus according to an embodiment of the present invention. FIG.
7 is a perspective view illustrating a state in which one drill pipe supplied to the pipe conveying apparatus according to the embodiment of the present invention is horizontally conveyed.
8 is a perspective view illustrating a state in which one drill pipe is further supplied to the pipe conveying apparatus according to the embodiment of the present invention.
FIG. 9 is a perspective view illustrating a state where two drill pipes are coupled to a pipe conveying apparatus according to an embodiment of the present invention.
Figure 10 is a perspective view illustrating the transfer of a combined drill pipe assembly (PA).
11 is a flowchart illustrating a process of forming a drill pipe assembly using a pipe transfer apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

Also, terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It should be understood that the terms comprising and / or comprising the terms used in the specification do not exclude the presence or addition of one or more other elements, steps and / or operations in addition to the stated elements, steps and / use. And "and / or" include each and any combination of one or more of the mentioned items.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a schematic view illustrating a drilling operation of a drilling vessel including a drilling facility according to an embodiment of the present invention.

1, a drill string 4 is moved downward through a doorpipe 3 formed at the center of a drilling vessel 1, thereby forming a sea bed 6, It is connected to the well below. A derrick 2 is disposed on the upper part of the door frame 3 to assist in lowering or raising the drill string 4 to the seabed on the drilling vessel. These drilling pipes can be connected in turn to three or four drill pipes in assembled stand units and can be moved down to the seabed.

As shown, drill string is extended from deep sea drilling vessel to deep sea borehole when drilling deep sea drilling, and operation (tripping in) and lifting operation (tripping out) It takes a lot of time.

Particularly, for drilling of deep water wells, cementing can be carried out at certain drilling depths in order to put the casing in the borehole of the sea bed and to strengthen the adhesion with the ground layer. To this end, each time the casing is further inserted into the borehole, the drill pipe may be pulled up by the drilling vessel and then repeatedly moved back into the borehole.

Furthermore, the drill bit for exploring the seabed ground also has a replacement cycle, and when the drill bit is replaced, the drill pipe may be tripped out and re-tripped.

The drill floor inside the derrick 2 may be provided with a setback region for preliminarily assembling three or four drill pipes or casings and storing them upright. The tripping-in or tripping-out operation is performed in stand-by units like this, so that the operation speed can be increased.

However, it may take a considerable amount of time to build the stand by assembling the drill pipes. In the case of a drilling vessel, since the area of the available space, that is, the setback area in the drill floor, can be limited, The maximum number of stands may be limited. Therefore, at the time of deep sea drilling, the stand building work can be performed simultaneously or alternately with the drilling work, and in this case, shortening the time of the stand building work can result in shortening the drilling work time.

In order to shorten the drilling time, the present invention has been derived from an attempt to assemble more than two drill pipes in advance and supply the drill pipe assembly (PA) to the drill floor in advance. Hereinafter, embodiments that embody such aspects of the present invention will be described in more detail.

2 is an exemplary partial perspective view of a drilling vessel including a pipe transport apparatus and other drilling rig according to an embodiment of the present invention.

Referring to FIG. 2, in one embodiment of the present invention, the pipe transfer apparatus 10 is illustrated as an apparatus for transferring a drill pipe horizontally, that is, horizontally to a hull or a deck. Such a pipe conveying apparatus 10 can be generally referred to as a catwalk, and in this specification, a pipe conveying apparatus can be used in the term catwalk.

In one embodiment of the present invention, the pipe transfer apparatus 10 can transfer a drill pipe assembly PA coupled with a first drill pipe DP1 and a second drill pipe DP2 toward the drill floor.

Thereafter, the drill pipe assembly PA can be vertically erected at one end thereof by the pipe upright device 13. The other end of the drill pipe assembly is then inserted into the mouth hole 14 or the drill hole 12 and then coupled to the drill pipe assembly PA further supplied by the pipe transfer device by the Hydra tube 15. [ . That is, in one embodiment of the present invention, it is illustrated that two drill pipe assemblies PA (four drill pipes) form one drill pipe stand PS. However, the present invention is not so limited, and in some embodiments, after a drill pipe assembly PA is initially supplied by a pipe transfer device, a single drill pipe may be supplied and coupled to the pipe transfer device Three drill pipes) or three or more drill pipe assemblies (PA) (up to four drill pipes) may be connected as a stand.

Once a single drill pipe stand PS is formed, it is gripped by a drill pipe stand (PS) gripping means such as, for example, a hydra racker (not shown) and transferred to a set- .

3 is a perspective view showing a pipe transporting apparatus according to an embodiment of the present invention.

Referring to FIG. 3, a pipe transport apparatus 10 according to an embodiment of the present invention includes a catwalk main body 100, a trolley 500, one or more rollers 200, and a torque wrench 400.

The catwalk body 100 may extend in a first direction (x direction) and may guide one or more drill pipes. On the upper surface of the catwalk main body 100, a guide surface 105 for guiding the drill pipe may be formed. The guide surface 105 includes a first inclined surface 106 and a second inclined surface 108 which are downwardly deposited in an inward direction (y direction) perpendicular to the first direction (x direction) on the upper surface of the catwalk main body 100 can do. The drill pipe may be supplied from a horizontal pipe feeder (not shown) disposed on the side of an external crane (not shown) or the catwalk main body 100 onto the guide surface 105, (X direction) by the inclination of the first inclined surface 106 and the second inclined surface 108 of the guide surface 105. [

The catheter body 100 also includes a first rail 102 extending along one side wall along the first direction (x direction) and a second rail 104 extending along the other side wall along the first direction can do.

The trolley 500 is movable along the first direction (x direction) on the guide surface 105. [ In one embodiment of the invention shown in Figure 2, the trolley 500 can be guided by a first rail 102 and a second rail 104. The trolley 500 can advance along the first rail 102 and the second rail 104 from one end of the catwalk main body 100 to the other end or backward in the opposite direction. The trolley 500 may include a plate-like pedestal extending vertically (y-direction) upwardly on the guide surface 105 and the pedestal may contact and press one end of the drill pipe to move the drill pipe with the trolley have. Although not shown, the trolley 500 may be connected to a drive (not shown) that causes its forward and backward movement. Illustratively, the drive associated with the trolley 500 may provide rolling torques directly on the first rail 102 and the second rail 104, or by pushing the trolley 500 using wires or rigid members And pulling means.

The one or more rollers 200 are partially exposed through the guide surface 105 of the catwalk main body 100 and can rotate around a rotational axis parallel to the first direction (x direction). In one embodiment of the present invention, the at least one roller 200 may be configured in two and may include, for example, a first roller 210 and a second roller 220. However, the present invention is not limited to this, and the number of one or more rollers 200 may vary according to the specifications of the catheter required, and may be, for example, one or more than three.

The guide surface 105 of the catwalk main body 100 has a first cutout 120 in which a first slanted face 106 and a part of the second slanted face 108 are respectively cut, The roller 220 may be partially exposed through the first cutout 120.

The first roller 210 and the second roller 220 can move up and down (y direction), and a part of the first roller 210 and the second roller 220 can move the first cutout 120 (Lowered) to the lower side of the first incision 120. [0064] As shown in FIG. When the first roller 210 and the second roller 220 are lifted, the first roller 210 and the second roller 220 can contact at least a part of the supplied drill pipe, .

A rolling support 300 may be disposed on top of the first roller 210 and the second roller 220. When the first roller 210 and the second roller 220 are raised to rotatably support the drill pipe supplied from the bottom of the supplied drill pipe, the rolling support 300 can rotate the drill pipe at the top of the drill pipe . That is, the drill pipe may be rotatably supported and rotated between the first roller 210 and the second roller 220 and the rolling support 300. At this time, the driving device that provides the rotational force may be connected to at least one of the first roller 210, the second roller 220, and the rolling support 300.

In this specification, the first roller 210, the second roller 220 and the rolling support 300 can function as a sort of spinner, and can be used to rapidly rotate the supplied drill pipe and to screw the two or more drill pipes Can be performed. A more detailed configuration of the one or more rollers 200 and the rolling support 300 and their operation will be described in more detail below with reference to FIG.

The torque wrench 400 may be disposed within the catheter body 100 and at least a portion thereof may be exposed through the guide surface 105 of the catheter body 100. The guide surface 105 of the catwalk body 100 may include a second cutout 130 in which a first beveled surface 106 and a portion of the second beveled surface 108 are cut respectively And a part of the torque wrench 400 may be exposed through the second cutout 130.

The torque wrench 400 can move up and down (y direction), and the torque wrench 400 protrudes (ascends) or slides over the guide surface 105 through the second cutout 130, And can be stored (lowered) downward. When the torque wrench 400 is lifted, the torque wrench 400 can grip each end of the supplied two opposing drill pipes, respectively, and rotate at least one of the two drill pipes. For example, two grasped drill pipes can be rotated in opposite directions, or one drill pipe can be rotated while another is being fixed.

A more detailed configuration of the torque wrench 400 and its operation will be described in more detail with reference to FIG.

4 is a cross-sectional view taken along line IV-IV 'of FIG. 3, according to an embodiment of the present invention.

Referring to FIG. 4, one or more rollers 200 of a pipe transport apparatus according to an embodiment of the present invention may include a first roller 210 and a second roller 220. A portion of the first roller 210 and the second roller 220 may be exposed to the outside through the first cutout 120 in which at least a part of the guide surface 105 of the catwalk main body 100 is cut. The first roller 210 and the second roller 220 can move up and down (z direction), and a part of the first roller 210 and the second roller 220 can move the first cutout 120 Or protruded or lowered above the guide surface 105 and can be accommodated below the guide surface 105.

The first roller 210 and the second roller 220 can rotate around an axis parallel to the first direction (x direction) in which the catwalk main body 100 extends, and in the elevated state, So that the drill pipe can be rotatably supported in contact therewith.

In some cases, the first roller 210 and the second roller 220 can slightly raise the drill pipe in the vertical direction (z direction) when the first roller 210 and the second roller 220 ascend, From the position CP 'to the second central axis position CP. Thus, for example, when there is a step between the central axes of the two drill pipes to be assembled on the guide surface 105 of the catwalk main body 100, and the eccentric state, By raising to the position CP, the step or eccentricity between the drill pipes can be eliminated.

A roll support 300 extending to the upper portion of the first roller 210 and the second roller 220 may be disposed on one side of the catwalk main body 100.

The rolling support 300 may include a support body 310, an extension arm 320, a third roller 340, and an actuation cylinder 330.

The support base body 310 can be fixedly disposed on one side of the catwalk main body 100 and can extend vertically. At the vertical end of the support body 310, the support body 310 and the extension arm 320 may be rotatably coupled. The extension arm 320 may extend from one side of the catwalk body 100 to the top of the first roller 210 and the second roller 220. The third roller 340 may be rotatably connected to the end portion 324 of the extension arm 320 about the rotation axis 326. The rotation axis 326 may extend parallel to the first direction in which the catwalk main body 100 extends, and the third roller 340 may be rotated about an axis parallel to the first direction.

A first hinge 312 may be formed on one side of the support base body 310 and a second hinge 322 may be formed on one side of the extension arm 320. The first hinge 312 and the second hinge 322 may be rotatably connected to both ends of the actuating cylinder 330 and the extension arm 320 and the third roller 340 of the end 324 thereof , And can be rotationally moved toward or away from the drill pipe on the guide surface 105 by the expansion and contraction action of the operating cylinder 330. [ The actuating cylinder 330 may be a hydraulic cylinder or a pneumatic cylinder. However, in the present invention, the actuating cylinder 330 is an example for relatively rotating the support arm body 310 and the extension arm 320, and the support arm body 310 and the extension And may be replaced with any driving device that relatively rotates the arm 320.

4, the first roller 210 and the second roller 220 are raised to rotatably support the drill pipe DP, and the extension arm 320 of the rolling support 300 is fixed to the drill pipe DP, The third roller 340 rotatably supports the drill pipe DP at the top of the drill pipe DP by rotating toward the pipe.

At least one of the first roller 210, the second roller 220 and the third roller 340 may be connected to a driving device (not shown) such as a motor, and may be provided with a high rotational force therefrom.

For example, the first roller 210, the second roller 220 and the third roller 340 may rotate in the first rotational direction M1 (counterclockwise) Can be rotated in the second rotation direction M2 (clockwise direction) correspondingly.

The drill pipe DP is supported at three points by the first roller 210, the second roller 220, and the third roller 340 and is rapidly rotated using a high-speed rotating means such as a motor, As shown in Fig.

In one embodiment of the present invention, the outer diameter of the drill pipe at both ends thereof may be larger than the outer diameter of the inside thereof. In other words, the drill pipe may have a shape having a second outer diameter (D2 in Fig. 5) that extends entirely to the first outer diameter D1 and has both ends thereof relatively larger than the first outer diameter D1. The first roller 210, the second roller 220 and the third roller 340 may respectively contact portions of the outer circumferential surface of the region having the first outer diameter D1 of the drill pipe to rotate the drill pipe.

FIG. 5 is a cross-sectional view of the pipe transporting apparatus according to the embodiment of FIG. 3 taken along line V-V '.

5, the torque wrench 400 of the pipe transport apparatus 10 according to an embodiment of the present invention can be disposed inside the catwalk main body 100, and at least a part of the torque wrench 400 can be disposed inside the catwalk main body 100, Through the second incision 130 of the guide surfaces 106,

The torque wrench 400 can rotate the two drill pipes by rotating the at least one drill pipe by gripping the opposite ends of the two drill pipes at the upper portion of the second cutout 130. [

In one embodiment of the present invention, the torque wrench 400 includes a support plate 410, a first extensible cylinder 420, a second extensible cylinder 422, one or more wrench bodies 436, a first gripper, A gripper may be included.

The support plate 410 is fixedly mounted to the pocket work body or deck, and can securely fix other members of the torque wrench 400. The first extensible cylinder 420 and the second extensible cylinder 422 can be fastened to the support plate 410 and can be arranged upright in the vertical direction (z direction).

The at least one wrench body 436 may be a rigid member including a U-shaped retracted surface opened upwardly therein and includes a first rotating arm 440 extending horizontally outward from both sides in the horizontal direction (y direction) And a second rotating arm 442. The end of the first rotating arm 440 can be rotatably engaged with the end of the first retracting cylinder 420 and the end of the second rotating arm 442 can be rotated together with the end of the second retracting cylinder 422 Lt; / RTI >

The first gripper and the second gripper may be disposed on the two ends of the upper portion of the wrench body 436, respectively.

The first gripper may include a first gripping cylinder 440 and a first gripping member 444. The second gripper may include a second gripping cylinder 442 and a second gripping member 446 can do.

The first gripping cylinder 440 and the second gripping cylinder 442 are respectively engaged with the two ends of the torque wrench 400 and the piston body is extended and retracted toward the inside of the U- . A first gripping member 444 and a second gripping member 446 may be coupled to the ends of the pistons of the first gripping cylinder 440 and the second gripping cylinder 442, respectively. The first gripping member 444 and the second gripping member 446 can enter into the U-shaped gripping surface of the wrench body 436 by the extension of the piston and the U- The outer circumferential surface of the drill pipe seated on the ground can be pressed. The pressing force of the first gripping member 444 and the second gripping member 446 is applied to the outer peripheral surface of the drill pipe and the U-shaped gripping surface and the peripheral surface of the drill pipe and the first gripping member 444 and the second gripping member 446, As shown in Fig. Therefore, it is possible to grip the drill pipe with a strong frictional force by providing a friction surface having a large contact area on the outer circumferential surface of the drill pipe and a high vertical drag force therefor.

In FIG. 5, the first gripper is illustrated in which the second gripper provides gripping force to the drill pipe seated on the U-shaped gripping surface of the torque wrench 400. The drill pipe held by the first gripper and the second gripper can be rotated by the expansion and contraction action of the first extension cylinder 420 and the second extension cylinder 422.

For example, when the first stretching cylinder 420 is raised but the second stretching cylinder 422 is lowered, the end of the first rotating arm 440 rotates in the direction D1 and the end of the second rotating arm 420 Is rotated in the direction D2 'so that the drill pipe can be rotated clockwise in Fig. When the first stretching cylinder 420 descends but the second stretching cylinder 422 ascends, the end of the first rotating arm 440 rotates in the direction of D1 'and the end of the second rotating arm 442 rotates The drill pipe can be rotated in the counterclockwise direction in Fig. 5 by being rotated in the direction D2.

The torque wrench 400 is configured such that the first elongating cylinder 420 and the first rotating arm 440 and the second elongating and contracting cylinder and the second rotating arm 442 apply a large torque to the wrench body 436 Which is capable of tightly screwing the two drill pipes in association with a strong gripping force by the first gripper and the second gripper. The coupling action of the torque wrench 400 is performed by a high speed rotation coupling by the first roller 210, the second roller 220 and the third roller 340 shown in FIG. 4, that is, And it is possible to rotate the drill pipe at a relatively low angular speed or to rotate the drill pipe with a stronger torque.

Furthermore, when the first extensible cylinder 420 and the second extensible cylinder 422 are simultaneously lifted or lowered, the torque body can be raised or lowered correspondingly. When the torque body is raised, the torque body can be moved over the second exposed portion to the upper side of the guide surface 105, and the drill pipe disposed on the guide surface 105 can be moved into the U-shaped retracted surface of the wrench body 436 Can be inserted. Further, in some embodiments, the first extensible cylinder 420 and the second extensible cylinder 422 may be further elevated after the drill pipe is inserted and seated within the U-shaped gripping surface of the wrench body 436, Thus, the position in the vertical direction (z direction) of the end portion of the drill pipe can be adjusted. This is because the ends of the two drill pipes disposed on the second cutout 130 and the torque wrench 400 can play a role of adjusting the vertical step difference.

5, one wrench body 436 and its peripheral structures are shown, but when viewed in a first direction in which the catwalk body 100 extends, the same back surface of the single wrench body 436 shown Another similar wrench body 436 and its peripheral configurations may be disposed, and both may perform substantially the same or similar functions. Thus, one wrench body 436 and its peripheral configurations can grasp and rotate the end of one drill pipe disposed on the second cutout 130, and another wrench body 436 And its peripheral configurations may grasp and rotate the other drill pipe disposed on the second cutout 130. [

In one embodiment of the present invention, the outer diameter of the drill pipe at both ends thereof may be larger than the outer diameter of the inside thereof. That is, the drill pipe may be shaped as a whole having a first outer diameter (D1 in FIG. 4) and having a second outer diameter (D2) at both ends that is relatively larger than the first outer diameter (D1 in FIG. 4). The torque wrench 400 according to an embodiment of the present invention may grasp the ends of two drill pipes having the second outer diameter D2 to respectively rotate one or more drill pipes to cause relative rotation with respect to each other.

6 to 11, a process of assembling a drill pipe in a pipe transfer apparatus according to an embodiment of the present invention will be described.

FIG. 6 is a perspective view illustrating a state where one drill pipe is supplied to the pipe conveying apparatus according to an embodiment of the present invention. FIG.

7 is a perspective view illustrating a state in which one drill pipe supplied to the pipe conveying apparatus according to the embodiment of the present invention is horizontally conveyed.

8 is a perspective view illustrating a state in which one drill pipe is further supplied to the pipe conveying apparatus according to the embodiment of the present invention.

FIG. 9 is a perspective view illustrating a state where two drill pipes are coupled to a pipe conveying apparatus according to an embodiment of the present invention.

Figure 10 is a perspective view illustrating the transfer of a combined drill pipe assembly (PA).

11 is a flowchart illustrating a process of forming a drill pipe assembly using a pipe transfer apparatus according to an embodiment of the present invention.

Referring to FIGS. 6 and 11, a first drill pipe DP1 may be supplied onto a pipe conveying apparatus according to an embodiment of the present invention (S10).

The first drill pipe DP1 may be supplied from one side of the catwalk main body 100 onto the guide surface 105 of the catwalk main body 100. [ For example, the drill pipe may be supplied to the guide surface 105 one by one by an external crane (not shown), or may be supplied to the temporary storage slot (not shown) of the catwalk main body 100 in two to three units Thereafter, the drill pipes supplied to the temporary storage slots (not shown) can be supplied one by one onto the guide surface 105. Further, the drill pipe may be supplied one by one from the horizontal pipe supply device (not shown) disposed on the side surface of the catwalk main body 100 onto the guide surface 105.

The supplied first drill pipe DP1 can be guided along the first direction (x direction) by being moved to the center of the guide surface 105 by the inclined surfaces of the guide surface 105. [

7 and 11, the first drill pipe DP1 supplied to the pipe transfer apparatus according to the embodiment of the present invention may be transferred along a first direction (x direction) (S20).

The trolley 500 can be moved in a first direction (x direction) from one side of the guide surface 105 and contact the end of the first drill pipe DP1 to move the first drill pipe DP1 in the first direction x The first drill pipe DP1 can be moved in the first direction (x direction) by the first movement distance L1.

After the transfer, the end of the first drill pipe DP1 may be disposed on the second cutout 130, and the end of the first drill pipe DP1 may then be gripped by the torque wrench 400. [

Next, referring to FIGS. 8 and 11, a second drill pipe DP2 may be supplied to the pipe conveying device according to an embodiment of the present invention (S30).

The second drill pipe DP2 can be supplied to one side of the guide surface 105 in the same manner as the first drill pipe DP1.

The trolley 500 can then move in the first direction TM1 and move the second drill pipe DP2 toward the end of the first drill pipe DP1 on the second cutout 130 .

9 and 11, a portion of the first roller 210 and the second roller 220 is raised through the first incision 120, and the torque wrench 400 is moved upward by the second incision 120. [ A portion thereof can be lifted through the first drill pipe 130 and the rolling support 300 can also be rotated toward the second drill pipe DP2 (S50).

The third roller 340 of the first roller 210 and the second roller 220 supports the second drill pipe DP2 in a state in which the third roller 340 of the rolling support 300 supports the outer peripheral surface of the second drill pipe DP2. The trolley 500 can move the second drill pipe DP2 along the first direction (x direction) (TM2). That is, while the trolley 500 presses the second drill pipe DP2 in the longitudinal direction, the third roller 340 of the first roller 210, the second roller 220, and the rolling support 300, The spinner rotates the second drill pipe DP2 so that the second drill pipe DP2 can rotate relative to the first drill pipe DP1 and the second drill pipe DP2 and the first drill pipe DP2 can rotate relative to each other, The end portion of the piston DP1 can be screwed.

The torque wrench 400 rigidly grasps the ends on the second cutout 130 of the first drill pipe DP1 and the second drill pipe DP2, By rotating, the first drill pipe DP1 and the second drill pipe DP2 can be tightly screwed together (S60).

10 and 11, the trolley 500 may move the assembly of the combined drill pipe in a first direction (x direction) to transport the drill pipe assembly toward the drill floor (not shown).

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10: Pipe transfer device (or catwalk)
DP1: First drill pipe
DP2: Second drill pipe
PA: Drill pipe assembly
100: Catwalk body
200: Rollers
400: Torque wrench
500: Trolley

Claims

A catwalk main body extending in one direction and having a guide surface for guiding the drill pipe;
A trolley for moving the drill pipe along the guide surface;
A roller that is exposed through a first incision portion of the guide surface and rotates about a rotation axis parallel to the one direction; And
And a torque wrench for holding a plurality of drill pipes on the guide surface and rotating and coupling at least one of the plurality of drill pipes held,
Wherein the torque wrench is exposed through a second incision in which a portion of the guide surface is incised and can be raised or lowered above the guide surface through the second incision.

The method according to claim 1,
Wherein the roller can be raised or lowered above the guide surface through the cutout.

The method according to claim 1,
Further comprising a rolling support extending from one side of the catheter body to the top of the roller.

The method of claim 3,
The rolling support includes a supporting base body fixedly disposed on one side of the catwalk body and extending vertically; An extension arm having one end rotatably coupled at the vertical end of the support body and the other end extending to the top of the roller; A third roller rotatably coupled to the other end of the extension arm; And an actuating cylinder for rotating said extension arm relative to said support body.

delete

The method according to claim 1,
The torque wrench includes a wrench body; A support plate; A first extensible cylinder and a second extensible cylinder fastened to the support plate; And a first extending arm and a second extending arm extending horizontally outward from both sides in the horizontal direction of the wrench body, respectively, and rotatably connected to the first extensible cylinder and the second extensible cylinder, respectively; And a first gripper and a second gripper, respectively, coupled to the wrench body at the upper two ends of the U-shaped gripping surface of the wrench body.

The method according to claim 6,
Wherein the first gripper includes a first gripping cylinder and a first gripping member coupled to an end of the first gripping cylinder and the second gripper comprises a second gripping cylinder and an end of the second gripping cylinder Wherein the first gripping cylinder and the second gripping cylinder cause the first gripping member and the second gripping member to closely contact the drill pipe on the guide surface by extension of the first gripping cylinder and the second gripping cylinder, The pipe conveying device.