KR20160036263A - Drill pipe handling method - Google Patents

Drill pipe handling method Download PDF

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Publication number
KR20160036263A
KR20160036263A KR1020140128237A KR20140128237A KR20160036263A KR 20160036263 A KR20160036263 A KR 20160036263A KR 1020140128237 A KR1020140128237 A KR 1020140128237A KR 20140128237 A KR20140128237 A KR 20140128237A KR 20160036263 A KR20160036263 A KR 20160036263A
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KR
South Korea
Prior art keywords
drill
stand
drill stand
drill string
pipe
Prior art date
Application number
KR1020140128237A
Other languages
Korean (ko)
Inventor
배재류
추교식
김인수
이수호
김진강
장웅권
이규석
김건호
권정한
김성수
Original Assignee
대우조선해양 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.)
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Publication date
Application filed by 대우조선해양 주식회사 filed Critical 대우조선해양 주식회사
Priority to KR1020140128237A priority Critical patent/KR20160036263A/en
Publication of KR20160036263A publication Critical patent/KR20160036263A/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 
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
    • 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
    • E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
    • E21B19/143—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole specially adapted for underwater drilling
    • 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
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • 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
    • E21B19/24—Guiding or centralising devices for drilling rods or pipes
    • 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)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

A method of handling a drilling pipe is disclosed.
The method for handling the drilling pipe includes: positioning the drill stand at an inclined position by an inclined portion at the top of the door; Gripping the drill stand located at the inclined portion with the guide portion and vertically standing and lowering the drill stand to the drill string side located at the lower portion of the drum; And connecting the drill stand to the drill string side by the rough knuckle.

Description

[0002] Drilling pipe handling method [0003]

The present invention relates to a method of handling a drilling pipe, and more particularly, to a method of handling a drilling pipe configured to simplify a system for connection of pipes and increase the efficiency of connection work of the pipe.

With the rapid development of international industrialization and industry, the use of earth resources such as petroleum is gradually increasing, and the stable production and supply of oil is becoming a very important issue on a global scale. For this reason, the development of marginal heredity or deep-sea oil field, which had been neglected due to economic difficulties, has become economical in recent years. Therefore, along with the development of submarine mining technology, floating drilling facilities equipped with drilling facilities suitable for the development of such oilfields have been developed.

Drill pipe or riser for drilling oil and gas existing under the sea floor at the center of drilling structure including drilling rig equipped with various drilling equipment to drill oil and gas existing in the underground a moonpool is formed so that the riser can move up and down.

1 is a view for explaining a drilling operation of a drill rig according to a conventional technique.

As shown in Fig. 1, the riser 4 and the drill pipe 5 are moved downward through the door 3 formed at the center of the drill ship 1 with a derrick 2 to form a sea bed (not shown). 6) drilling the seabed resources stored in a well 13 located in a reservoir 12 below. The riser 4 provides a passage through which the mud returns as a member that is advanced to the bottom of the seabed 6 before advancing the drill pipe 5 to the well 13. When the riser 4 is installed, the drill pipe 5 is advanced downward into the riser 4 through the seam bottom layer 11 to the well 13.

When the riser 4 is moved downward to the bottom 6 or the drill pipe 5 is advanced to the oil well 13, the riser 4 or the drill pipe 5 is moved downward Rather, the short-length riser 4 or the drill pipe 5 are connected to each other and moved downward. Bottom bottom 6 is provided with a blowout preventer (BOP) 7 for blocking abnormal high pressure from rising on the drill pipe 5. In the seam layer 11, after the casing 8 is fixed by the cement, the drill pipe 5 equipped with the drill bit 10 is inserted into the casing 7 to drill the seabed resources. In order to prevent the drill bit 10 from being overheated by the heat generated when the drill bit 10 is drilled and to facilitate lubrication and drilling, the mud 9 is supplied into the drill pipe 5 do. This mud exits through the drill bit 10 and comes back through the casing 8 and the riser 4.

As a technique for assembling pipes used in such drilling operations, Korean Patent Laid-Open No. 10-2011-0029965 discloses a preliminary pipe assembly method for drilling. This is a method of preassembling a pipe for a drilling operation, comprising the steps of: placing two or more pipes on a platform by a pipe carrier, and then transporting the two or more pipes together to a pipe operation device side by a conveyor; Gripping the two or more pipes together by the pipe operating device having two or more arms and uprighting them, and then inserting the two or more pipes into two or more mouse holes; Placing two or more different pipes on the catwalk by the pipe conveying device and then conveying the two or more different pipes together to the pipe operating device side by a conveyor; Gripping the other two or more pipes together by the pipe operating device and uprighting them, and then connecting the two or more pipes previously inserted into the mouth holes, respectively; And transferring and storing the two or more connected pipes to the setback area by the pipe operating device.

However, such a pipe assembling method for drilling requires a complicated system for pipe connection and has a problem in that it requires difficulty in lowering or omitting the derrick because of necessity of use of derrick.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to simplify a system for connection of pipes, increase the efficiency of connection work of pipes, lower the height of derrick, .

According to an aspect of the present invention, there is provided a method of manufacturing a drill stand, the method comprising: positioning a drill stand by an inclined portion at an upper end of a drum; Gripping the drill stand located at the inclined portion with the guide portion and vertically standing and lowering the drill stand to the drill string side located at the lower portion of the drum; And connecting a drill stand lowered to the drill string side to the drill string by a rough knuckle.

The method for handling a drilling pipe includes the steps of lifting the drill string by a gripping portion and transmitting the drill string to the guide portion; Separating a drill stand corresponding to a portion gripped by the guide portion from the drill string transmitted to the guide portion by the rough neck; Positioning the drill stand separated from the drill string by raising the guide portion to be inclined to the slope portion; And loading the drill stand located at the inclined portion on the loading portion.

Wherein the drill pipe is moved to a connecting position by the movement of the loading box in a state in which the drill pipe is loaded on the loader before the step of tilting the drill stand, And moving the drill stand to the inclined portion.

According to another aspect of the present invention, there is provided a method of handling a drill pipe, wherein the drill stand is horizontally stored and connected to a drill string through an inclined portion formed at the top of the drum.

According to the present invention, it is possible to simplify the system for connecting the drilling pipe, thereby reducing the time and cost required for manufacturing the system, increasing the efficiency of the connection operation of the drilling pipe, lowering the height of the derrick By allowing the derrick to be omitted, the height of the drilled structure can be reduced.

1 is a view for explaining a drilling operation of a drill rig according to a conventional technique.
FIG. 2 is a view illustrating a handling system for a drilling pipe used in a method of handling a drilling pipe according to a preferred embodiment of the present invention.
3 to 5 are schematic views for sequentially illustrating a method of handling a drilling pipe according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following embodiments can be modified into various other forms, and the scope of the present invention is not limited to the following embodiments.

FIG. 2 is a view illustrating a handling system for a drilling pipe used in a method of handling a drilling pipe according to a preferred embodiment of the present invention.

2, the drilling pipe handling system 100 according to the present embodiment is provided at the top of a moonpool 210 and includes an inclined portion (not shown) for guiding the drill stand 220 to be inclined Guide units 120 and 130 that vertically load or unload the drill stand 220 from the slope 110 toward the drill string 230 side and vice versa, And a roughneck 140 for receiving the drill stand 220 from the guide portions 120 and 130 and connecting the drill stand 220 to the drill string 230 or separating the drill string 230 from the drill string 230. The drilling pipe handling system 100 according to the present embodiment may further include a gripping portion 150 for smoothly transferring the drill stand 220 from the rough knot 140 to the guide portions 120 and 130 .

The drill stand 220 constitutes a part of the drill string 230 and is formed by connecting three or four drilling pipes. In order to shorten the connection time of the pipe for drilling in the drilling operation, three or four drilling pipes are previously connected and stored near the drum, and the drilling stand 220 is connected to the drill string 230, . It is called a "Drill Stand" because it is kept up when it is stored near the floor.

The drilling pipe handling system 100 according to the present embodiment is provided in the drum 210 formed in the drilling structure. The drilling structure can be a rig ship, a fixed platform, or a drillship for subsea drilling As well as all structures used in the ocean for drilling operations. The drill stand 220 (shown in FIG. 5) may be formed by connecting a plurality of drill pipes, for example, three to four drill pipes, As shown in FIG.

The inclined portion 110 may be provided at an upper end of the door 210 to be inclined as a separate member from the door 210 and may be formed as an inclined surface formed at the upper edge of the door 210 as in the present embodiment And the drill stand 220, which is horizontally conveyed by a catwalk, a conveyor or a conveying roller, is guided to be inclined.

The guide portions 120 and 130 grip the drill stand 220 (shown in FIG. 5) inclined by the inclined portion 110 to vertically raise and lower the drill stand 220, ). The guide units 120 and 130 may include first and second guide units 120 and 130 installed in the door 210 to grip the lower and upper portions of the drill stand 220, respectively. Also, the first and second guide units 120 and 130 may be installed on both sides of the interior of the door 110 on the basis of a direction in which the drill stand 220 is tilted. That is, the first and second guide units 120 and 130 may be installed so as to face each other so as to be arranged back and forth along the tilting direction of the drill stand 220 as in the present embodiment.

The first guide unit 120 includes a first guide rail 121 vertically installed in the door frame 210 and a second guide rail 121 installed to vertically move along the first guide rail 121. The first guide unit 120 includes a first arm 122, A first gripper 124 installed at an end of the first arm 122 for gripping the drill stand 220 (shown in FIG. 5), and a second gripper 124 installed at the end of the first arm 122 for gripping the drill stand 220 And a first elevation driving unit 125 for moving the horizontal movement driving unit 123 along the first guide rail 121. [ The first horizontal transport driving part 123 may be slidably coupled along the first guide rail 121 and the first arm 122 may be horizontally reciprocated using the driving force of a motor or a cylinder . The first gripper 124 can grip or un-grip the drill stand 220 by a driving force of an actuator such as a motor or a cylinder. The first elevation driving part 125 can vertically feed the first horizontal feed driving part 123 together with the first gripper 124 along the first guide rail 121 by using a driving force of a motor or a cylinder.

The second guide unit 130 includes a second guide rail 131 vertically installed in the door frame 210 and a second guide rail 131 installed to be able to move up and down along the second guide rail 131, A second gripper 134 provided at an end of the second arm 132 for gripping the drill stand 220 (shown in FIG. 5), and a second gripper 134 installed at the end of the second arm 132 for gripping the drill stand 220 And a second lifting and lowering driving unit 135 for lifting and moving the horizontal transport driving unit 133 along the second guide rail 131. [ Here, the second horizontal feed driver 133 can be slidably coupled to the second guide rail 131, for example, and the second arm 132 can be horizontally reciprocated using the driving force of a motor or a cylinder . The second gripper 134 can grip or un-grip the drill stand 220 by a driving force of an actuator such as a motor or a cylinder. The second lifting and lowering drive unit 135 can vertically transport the second horizontal transport driving unit 133 along with the second gripper 134 along the second guide rail 131 by using the driving force of a motor or a cylinder.

The rough neck 140 connects the drill stand 220 (shown in FIG. 5) to the drill string 230 that is lowered by the guide portions 120 and 130 and separates the drill stand 220 from the drill string 230, For this purpose, a lower wrench including an upper wrench and a torque wrench may be included. The upper wrench may be a wrench for rapidly rotating the drill stand 220 until the lower wrench finally tightens the drill stand 220 with a strong force when the drill stand 220 and the drill string 230 are connected, The wrench can provide a strong force of rotational force to engage the drill stand 220 in the final stage, which is difficult to tighten by the force of the upper wrench, and the upper wrench and the lower wrench rotate in opposite directions, (Not shown). The rough neck 140 may be moved by a motor or a cylinder so as to move to a point where the drill stand 220 and the drill string 230 are coupled, or only the upper wrench and the lower wrench may be moved.

The gripping portion 150 grips and lifts up the drill stand 220 (shown in FIG. 5) separated by the rough neck 140 so as to transmit the guide portions 120 and 130, for example, to the second guide unit 130 can do. The gripping portion 150 is horizontally installed so as to be able to move up and down along a guide rail installed in the door 210 and includes an elevating member 152 having a through hole 151 formed therethrough so as to penetrate the drill stand 220, A third gripper 153 installed to allow the drill stand 220 to be gripped or released by a driving force of a motor or a cylinder in the hole 151 and a third gripper 153 installed to lift the elevation member 152 using a driving force of a motor, And a third lifting and lowering driving unit 154 for lifting and lowering the guide rails along the guide rails. Here, the first and second guide rails 121 and 131 may be used as the guide rails, and may be separate from the first and second guide rails 121 and 131 as another example.

The casing 160 may be installed in the interior of the door 210. The casing 160 may be installed inside the door 210 and includes guide portions 120 and 130, a rough knot 140, and a gripping portion 150 To prevent the inflow of seawater between the drill string 230 and the through hole 161 in the through hole 161 formed to allow the drill string 230 to pass therethrough, A sealing member 162 for maintaining the watertightness of the space described above may be provided. Also, the casing 160 may be formed separately from the inclined portion 110, or the upper end may be formed as a part or all of the inclined portion 110.

3 to 5 are schematic views for sequentially illustrating a method of handling a drilling pipe according to a preferred embodiment of the present invention. The method for handling the drilling pipe according to the present embodiment is the same as the method using the handling system 100 for the drilling pipe according to the present embodiment described above, and the description of the same parts will be omitted.

3 to 5, in the method for handling the drill pipe according to the present embodiment, the drill stand 220 is first slanted by the slope portion 110 at the upper end of the platform 210. The drill stand 220 located at the slant 110 is gripped by the guide portions 120 and 130 and is vertically raised and lowered to the side of the drill string 230 located at the lower portion of the drum 210. The first and second arms 122 and 132 of each of the first and second guide units 120 and 130 are configured to grip the lower and upper portions of the drill stand 220, The drill stand 220 is vertically formed by moving the second grippers 124 and 134 in the opposite horizontal directions and descending along the first and second guide rails 121 and 131 to lower the drill stand 220 .

7, when the drill stand 220 is vertically erected by the first and second guide units 120 and 130 and descends to the drill string 230 side, the drill stand 230 is lowered toward the drill string 230 220 are connected to the drill string 230 by the rough neck 140.

Before the step of inclining the drill stand 220 shown in Fig. 5, the drill pipe constituting the drill stand 220 is moved to the connecting position on the deck by the movement of the loading box in a state of being loaded on the loader, And moving the drill pipe 210 to the drill stand 220 by connecting the drill pipe to the drill stand 220 by means of a rough knuckle (not shown).

According to the above steps, drilling operation can be performed by moving the drill string 230 downward by the connection of the drill stand 220.

According to the method of handling a pipe for drilling according to the present invention, it is possible to simplify a system for connecting a pipe for drilling, thereby reducing the time and cost required for manufacturing a system, And the height of the drilling structure can be reduced by lowering the height of the derrick or by eliminating the derrick.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. It is.

110: inclined portion 120: first guide unit
121: first guide rail 122: first arm
123: first horizontal feed drive part 124: first gripper
125: first elevation driving part 130: second guide unit
131: second guide rail 132: second arm
133: second horizontal feed drive part 134: second gripper
135: second elevating portion 140: rough-neck
150: gripping portion 151: through hole
152: lifting member 153: third gripper
154: third lifting mouth part 160: casing
161: through hole 162: sealing member
210: a frame 220: a drill stand
230: Drill string

Claims (4)

Positioning the drill stand at an angle by an inclined portion at the top of the door frame;
Gripping the drill stand located at the inclined portion with the guide portion and vertically standing and lowering the drill stand to the drill string side located at the lower portion of the drum; And
Connecting the drill stand to the drill string side by the rough knuckle;
Wherein the method comprises the steps of: The method according to claim 1,
Elevating the drill string by a gripping portion and transmitting the drill string to the guide portion;
Separating a drill stand corresponding to a portion gripped by the guide portion from the drill string transmitted to the guide portion by the rough neck;
Positioning the drill stand separated from the drill string by raising the guide portion to be inclined to the slope portion; And
Loading the drill stand located at the inclined portion on the loading portion;
Further comprising the step of: The method according to claim 1,
The drill stand is moved to a connection position by the movement of the loading box in a state of being loaded on the loading box before the step of tilting the drill stand, and then a plurality of drill pipes are connected by a rough neck provided at the connecting position to form a drill stand Further comprising the step of moving said drilling pipe to said slope portion. Wherein the horizontally stored drill stand is connected to the drill string via an inclined portion formed at the top of the portal.
KR1020140128237A 2014-09-25 2014-09-25 Drill pipe handling method KR20160036263A (en)

Priority Applications (1)

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KR1020140128237A KR20160036263A (en) 2014-09-25 2014-09-25 Drill pipe handling method

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Application Number Priority Date Filing Date Title
KR1020140128237A KR20160036263A (en) 2014-09-25 2014-09-25 Drill pipe handling method

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KR20160036263A true KR20160036263A (en) 2016-04-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102240254B1 (en) 2021-01-14 2021-04-14 (주)지오스마트 Rod flow prevention and straightness maintenance device combined with casing for offshore drilling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102240254B1 (en) 2021-01-14 2021-04-14 (주)지오스마트 Rod flow prevention and straightness maintenance device combined with casing for offshore drilling

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