KR20160039053A

KR20160039053A - Transport system for ship

Info

Publication number: KR20160039053A
Application number: KR1020140131844A
Authority: KR
Inventors: 장제진
Original assignee: 현대중공업 주식회사
Priority date: 2014-09-30
Filing date: 2014-09-30
Publication date: 2016-04-08

Abstract

According to an aspect of the present invention, there is provided an ejection prevention device transport system including: a rail; A skid moving on said rail to carry an ejection protection device; And a rotating turntable provided on the rail, wherein the skid moves along the rail, and moves along the rail in a rotated state by the rotation of the turntable.
BOP, LMRP and X-MAS TREE, etc., can be easily transported to the platform, and the BOP, LMRP and X-MAS It is possible to automatically rotate the viewing direction of the BOP or the like in the door frame which is different from the viewing direction for assembling the TREE and the like, thereby improving the working efficiency.

Description

Transport system for ship}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an ejection prevention device transportation system applied to a drill rig or an offshore structure.

Due to the recent rapid industrialization, the use of resources such as oil has skyrocketed, and the stable production and supply of oil is becoming a very important issue. However, the oil field in the continental or coastal waters has already been drilled. In recent years, interest has been focused on the development of a deep-sea deep-sea oil field. Drilling is generally used to drill deep-sea oilfields.

Drill ship is an offshore structure that is equipped with advanced drilling equipment and is built in a shape similar to that of a ship so that it can be sailed by its own power. It is capable of collecting raw oil or gas in deep sea area where an offshore platform can not be installed, It is advantageous that the drilling can be terminated and the drilling can be carried out by moving to another point.

Such drillings include Derrick, which has a Moonpool structure in a vertically penetrating form and is located above the drum and has drilling rigs. Hereinafter, the process of drilling the bottom of the drill ship will be described.

First, the drill ship uses its own power to move to the drilling area and drives a Dynamic Positioning System (DPS) using a plurality of thrusters to maintain the position.

Thereafter, the drill bit is connected to a drill pipe by a drill bit, and a plurality of drill pipes are connected by a sufficient length by using a Hoisting System and a Handling System provided in Derrick, And the drilling pipe is rotated through a rotating system to form a borehole.

Once drilling is completed, Derek picks up the drill pipe, installs the casing pipe on the borehole, and performs the cementing process to fill the concrete between the casing pipe and the borehole. The drilling operation used and the casing and cementing work for installing the casing pipe are repeatedly performed to maintain the shape of the borehole having a certain depth.

When the casing pipe is installed enough to prevent the borehole from falling down, BOP (Blow Out Preventer) is connected to the riser to be connected to the borehole. In this case, the inside of the riser becomes the path of movement of the drill pipe and casing pipe.

However, lubrication and cooling of the drill bit in the drilling process, and processing of the crushed material such as rock mass produced in the borehole are required. Therefore, the drill feeds the mud to the inside of the drill pipe so that the mud is discharged at the end of the drill bit, and after the mud performs lubrication and cooling of the drill bit, (Mud Circulation System) is used. The recovered mud is re-used after the pulverized material is filtered.

The drillship repeatedly performs drilling, casing and cementing operations until the drill bit reaches the well, while driving this mud circulation system. In this case, as the diameter of the casing pipe used in the casing work becomes smaller, Drilling can be implemented continuously by replacing small drill bits.

As such, the drill rig has a system for installing and using pipes and risers, a system using a mud, and the like. In order to smoothly perform drilling work using such a system, a drill hole structure, a derrick structure, and a load structure Is required to be disposed within a certain space, so that research and development are being continuously carried out as a result of a high technological power being required.

However, if the drill ship is fixed once in the sea, it will drill for a long time like more than one year, and it will be necessary to replace the equipment due to aging of BOP, LMRP and X-MAS TREE. At this time, the ejection preventing device is transported by a carrier ship such as a shuttle, and is hoisted by a separate crane provided on the drill. When the ejection preventing device is transported to the platform to lower the submergence preventing surface, And a load of 300 tons.

It is an object of the present invention to improve the prior art. It is an object of the present invention to provide an apparatus and a method for transporting equipment such as BOP, LMRP and X-MAS TREE from a ship's deck to a doorpane, And to automatically rotate the viewing direction of the equipment such as the MAS TREE.

According to an aspect of the present invention, there is provided an ejection prevention device transport system including: a rail; A skid moving on said rail to carry an ejection protection device; And a rotating turntable provided on the rail, wherein the skid moves along the rail, and moves along the rail in a rotated state by the rotation of the turntable.

Specifically, the turntable includes: an extension rail that forms a movement path corresponding to the rail so that the skid moves along the turntable; A support portion on which the extension rail is provided; And an actuating part provided on the supporting part to rotate the supporting part.

Specifically, the support portion includes a top plate member provided with the extension rail and supporting the skid; And a lower plate member connected to the upper plate member.

Specifically, the actuating part includes a rotary support which is provided in pairs in the support part and rotates the support part.

Specifically, the turntable is rotated 360 degrees at intervals of 90 degrees.

Specifically, the rail is characterized by being embedded in the hull.

BOP, LMRP and X-MAS TREE, etc., can be easily transported to the platform, and the BOP, LMRP and X-MAS It is possible to automatically rotate the viewing direction of the BOP or the like in the door frame which is different from the viewing direction for assembling the TREE and the like, thereby improving the working efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a drill ship in which an ejection prevention device transport system according to an embodiment of the present invention is installed.
2 is a view conceptually showing an ejection prevention device transport system according to an embodiment of the present invention.
Fig. 3 is an enlarged view of III in Fig. 2. Fig.
4 is a front view showing a rail and a turntable of an ejection prevention device delivery system according to an embodiment of the present invention.
5 is a plan view showing a rail and a turntable of an ejection prevention device transport system according to an embodiment of the present invention.
FIGS. 6 and 7 are views for explaining a state in which the BOP is rotated by the discharge preventing device transport system according to the embodiment of the present invention.
8 is a view of an extension rail of an ejection barrier device delivery system in accordance with an embodiment of the present invention.
9 is a view showing an operation part of a discharge preventing device transport system according to an embodiment of the present invention.
10 is a side view showing an ejection prevention device transport system according to another embodiment of the present invention.
11 is a front view showing an ejection prevention device transportation system according to another embodiment of the present invention.
12 is a plan view showing a turntable of the ejection prevention device delivery system according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements have the same numerical numbers as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

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

FIG. 1 is a view showing a drill provided with a discharge preventing apparatus carrying system according to an embodiment of the present invention, and FIGS. 2 to 9 are views for explaining a discharge preventing apparatus carrying system according to an embodiment of the present invention. to be.

First, as shown in FIG. 1, the discharge preventing device transport system 100 of the present embodiment may be provided in a drill ship or an offshore structure provided with a moon pool 12, and in the present embodiment, For the sake of convenience, the drill 10 having the drum 12 is described as an example, but the present invention is not limited thereto.

The hull 11 of the drill string 10 is provided with a door 12 between a forward bow and a stern and the door 12 is formed as an opening formed through the hull 11 vertically. Here, the drum 12 is provided with a drill rig for performing a drilling operation. Here, the drilling equipment may be provided in a derrick 13 located above the door 12.

The hull 11 of the ship is provided with a separate propeller (not shown) such as a thruster (not shown) to adjust the position of the hull 11 and is fixed to the sea to perform a drilling operation. At this time, the pipe can be connected to a sufficient length by a handling system (not shown) through the door cloth 12, which is provided perpendicularly to the hull 11, and can be lowered to the sea floor through the door cloth 12.

That is, each of pipes such as a drill pipe and a casing pipe is loaded on a pipe rack (not shown) of the pipe, and moved from the rack, erected and assembled to the seabed, A BOP gantry crane (not shown) carries the pipe loaded in the enemy cage on a conveyor (not shown) on top of a catwalk (not shown). Here, the crane 16 is provided on the hull 11 separately from the BOP gantry crane so that the equipment on the hull 11 can be carried or loaded and unloaded.

Such a hull 11 pulls up a mud mass such as clay, crushed rock, and the like, which is obtained by a pipe drilling operation, through a pipe and a riser. Here, the mud is continuously supplied by a mud pump (not shown) during the drilling operation in order to prevent the drill bit (not shown) from being overheated and to prevent the abnormal high pressure from rising on the pipe, These muds are fed into the pipe and back through the riser through the holes in the drill bit.

In the recovery process of the mud, the liquid mud properly mixed to enable the drilling operation is generated as a high-pressure mud by the mud pump and is introduced into the pipe, and the mud introduced into the pipe is supplied to the various cuts cuttings, such as rock fragments, gravel, sand, silt, gas, and various impurities.

In order to process the mud pulled back up, the mud can be introduced into the mud treatment tank 17 through a mud gutter (not shown). The mud gutter is a passage through which the mud is moved, and is provided in the hull 11 in the form of a pipe, and the mud flowing from the seabed is moved. The mud can be pulled up through the mud gutters, and the puddle treatment can be performed through sedimentation in the mud treatment tank 17.

Here, the mud treatment tank 17 may be provided on the deck of the hull 11 adjacent to the door 12 to process the pulled up mud, and the mud including various cuts may be provided by a shale shaker ), Sand traps, and various cuts are removed. The regenerated mud enters the mud pit through the mud return line and is stored, then pressurized by the mud pump and fed back into the pipe.

On the other hand, when the drilling operation is completed, the BOP 18 is lowered from the drill 10 and installed on the bottom surface of the drill to prevent the risk of eruption. That is, the BOP 18 is installed on a well to be drilled and exposed to seal the borehole.

On the other hand, the ejection preventing devices such as the BOP 18, LMRP (not shown), X-mas tree (not shown), etc., The ejection preventing device is carried to the drill 10 through a separate shuttle (not shown) for the replacement of the ejection preventing device and the new ejection preventing device on the shuttle is moved to the crane 16 of the drill string 10 (10).

Here, a new replacement release preventing device must be shipped on the deck of the hull 11 to be transported to the platform 12, so that it can be moved to the sea floor through the platform 12. At this time, the ejection prevention device delivery system 100 of the present embodiment is provided on the hull 11 so that the ejection prevention device can be carried to the platform 12.

The hull 11 may be divided into a plurality of layers by a deck, a space where the spray preventing device is seated on the crane 16 and a space where the door 12 is provided may be stepped, Direction of the crane 16, the direction of the lift of the crane 16, and the like.

For example, the BOP 18, the LMRP, and the X-mas tree of the blow-out prevention device are integrally stacked on the BOP 18 as a base, and are lowered to the sea floor through the door 12, The LMRP is lowered from the upper end of the step to the lower end and then moved up and down along the rail 110, which will be described later, in the boat 11, , And is lifted up to the upper side by the up-and-down moving device. Then, when the BOP 18 is lowered to the lower end of the step and then moved along the rail 110 to the lower end of the LMRP, the LMRP is seated on the BOP 18 and assembled.

At this time, the up-and-down moving device is provided by removing the turntable 130 at the corner (corner) forming the step of the hull 11 so as not to interfere with the moving path of the skid 120, The viewing direction of the BOP 18 may be different from the viewing direction of the BOP 18 that is taken down from the door 12 so that the direction of the BOP 18 needs to be changed. Here, the BOP 18 is provided with a pair of bars and is gripped by the up-and-down moving device or the door frame 12 and is generally provided on one surface (for example, the rear surface) of the BOP 18 and is moved upward and downward .

2, the ejection barrier device transport system 100 of the present embodiment includes a rail 110, a skid 120, and a turntable 130 to move the ejection barrier device and to switch the viewing direction do. Here, the ejection preventing device may be a BOP 18, an LMRP, or the like as described above, and an LMRP may be assembled on the BOP 18 and installed on the seabed. Generally, the LMRP is installed on the upper part of the BOP 18 in the ship 11 so that the BOP 18 and the LMRP are unified and descended from the platform 12 to the sea floor.

In the present embodiment, it is assumed that the BOP 18 in which the LMRP is integrated moves and is descended. For convenience of explanation and understanding, LMRP is omitted and is referred to as BOP 18. Here, a pair of bars provided on one surface (for example, the rear surface) of the BOP 18 are lowered below the hull 11 in a state gripped by the door 12.

The rail 110 is provided on the hull 11 to form a movement path of the skid 120 and guides the movement of the skid 120. The rail 110 is provided on the deck of the hull 11 adjacent to the crane 16 and extends to the door 12 so that the BOP 18 descended from the crane 16 is seated on the skid 120 The skid 120 may automatically (or manually) travel along the rail 110 and move to the door 12. For example, the rails 110 may be formed in a checkered shape so as to be provided in the lateral direction and the longitudinal direction so that the skid 120 can move left and right and back and forth on the hull 11.

For example, the rail 110 may extend in the longitudinal direction along the movement path of the skid 120 and may extend in the longitudinal direction of the skid 120, So that both sides of the skid 120 can be guided horizontally and stably. Here, the rail 110 may be formed with a groove into which the skid 120 is inserted, and may be made of stainless steel or the like having rigidity such that the shape of the rail 110 is not deformed by the load of the equipment such as the BOP 18. [

2 and 3, the skid 120 is configured to carry the BOP 18 with the BOP 18 seated thereon, and is moved to move on the rail 110 to carry the BOP 18. As shown in Figures 2 and 3, And may include a support 121. The moving support part 121 may include an insertion member 1211 inserted into the groove of the rail 110 and a roller member 1212 provided inside the insertion member 1211. [ Alternatively, the movable support portion may be provided with the roller member omitted and made of an insertion member so as to be slidable along the rail 110, as described in another embodiment.

For example, the insertion member 1211 of the present embodiment protrudes downward from the lower surface of the skid 120 so as to be inserted into the groove of the rail 110. The rail 110 has an upper end wider than the lower end so that the rail 110 and the insertion member 1211 are engaged with each other. The insertion member 1211, which is inserted into the groove of the rail 110, So that the lower end portion is bent toward the rail 110 side.

The roller member 1212 can be provided on the inner side of the insertion member 1211 as a structure in which the skid 120 is provided to be automatically moved by a driving force (not shown) such as a motor or a motor.

3, the roller member 1212 may be provided in a plurality and abuts on the rail 110 on the insertion member 1211, and is rotated by the rotation of the roller member 1212, The skid 120 can be driven. Although four roller members 1212 are illustrated on the insertion member 1211, the roller member 1212 may be formed of one roller member or may abut the upper portion of the rail 110, and the like.

In addition, although not shown in the drawing, an insertion groove is formed in one of the skid 120 and the ejection preventing device, and a fitting protrusion is formed in the other, so that the fitting protrusion is inserted into the insertion groove, And can be stably supported. Alternatively, the skid 120 may be provided with a fixing member to which the ejection preventing device is fixed. The fixing member may protrude upward to abut on both sides of the ejection preventing device to support the ejection preventing device, It is possible to prevent the prevention device from being shaken.

The skid 120 moves along the rail 110 and moves to the door 12 along the rail 110 while being rotated by the turn table 130 to be described later, The operator can change the viewing direction of the BOP 18 so as to grip the BOP 18 at the position of the BOP 18 so that the worker can be automatically rotated without lowering the BOP 18 and down along the wall surface of the frame 18. [

As shown in Figs. 4 to 9, the turntable 130 is provided on the rail 110 as a configuration for switching the viewing direction of the BOP 18. Fig.

4 and 5, the turntable 130 has the same horizontal line as that of the rail 110. The skid 120 can be moved without being caught by the turntable 130 when the skid 120 moves, The extension rail 131 is provided with a horizontal and vertical movement path so that the turntable 130 forms the same movement path as the rail 110, apart from the rotation of the skid 120. The extension rail 131 will be described later.

As shown in FIGS. 6 and 7, the turntable 130 of this embodiment can be rotated in one direction (or both directions) at intervals of 90 degrees, rotated four times at intervals of 90 degrees, rotated 360 degrees, can do.

The turntable 130 rotates 90 degrees (or 180 degrees, 270 degrees) to change the viewing direction of the BOP 18 so that the front of the BOP 18 faces in a different direction . That is, when the BOP 18 moves in a straight line, the BOP 18 toward the front moves along the rail 110, and then rotates 90 degrees on the turntable 130 to change the viewing direction so that the front surface faces the left side The player can move the turntable 130 through the turntable 130 in a state of facing the front surface of the turntable 130 toward the right side.

Here, the turntable 130 may include an extension rail 131, a support portion 132, and an operation portion 133.

As shown in FIG. 8, the extension rail 131 can provide a movement path corresponding to the rail 110 so that the skid 120 moves along the turntable 130. The extension rails 131 can be extended not only in the longitudinal direction but also in the transverse direction so that the extension rails 131 can be connected to the longitudinal rails 110 on a plane view when the turntable 130 rotates at 90- have. That is, even if the turntable 130 rotates 90 degrees and the extension rail 131 in the longitudinal direction is transverse, the extension rail 131 in the transverse direction forms the longitudinal direction, so that the rotation of the turntable 130 The extension rail 131 is connected to the rail 110. Thus, even if the skid 120 is rotated by the turntable 130 after passing through the rail 110 and disposed on the extension rail 131, the skid 120 comes out of the extension rail 131 of the turntable 130, And then move to the location 12.

Here, the unidentified identification code 1311 and the identification code 1312 refer to the extension rail 131, and the extension rail 131 conceptually shown in Figs. 6 and 7 is specifically shown in Fig. 8, It is classified to help. That is, each of the pair of extension rails 131 is provided in a pair so that each of the pair of insertion members 1211 inserted into the groove of the extension rail 131 is accommodated.

4, the support portion 132 may include a top plate member 1321 and a bottom plate member 1322 so as to form a pair of plate members. The upper plate member 1321 is provided with an extension rail 131 and has the same horizontal line as that of the rail 110 to support the skid 120 and to form the upper portion of the support portion 132. The lower plate member 1322 supports the upper plate member 1321 to form a lower portion and an operation portion 133 can be installed.

The actuating part 133 may be provided on the support part 132 to rotate the support part 132. For example, as shown in FIG. 9, the actuating part 133 may include a rotatable support provided on a lower surface of the support part 132 in a pair, and the support part 132 may be rotated have. At this time, the rotary support is driven by a separate motor to generate a rotating force, and the pair of rotary supports are spaced apart from each other on the left and right sides (or both upper and lower sides) about the center of the support portion 132. For example, one of the pair of rotating supports supports the upward movement in the plan view and the other rotatable support supports the downward movement, so that the center of the supporting portion 132 becomes the axis and the supporting portion 132 rotates clockwise Direction to rotate.

For example, the rotary support abuts the bottom surface and rubs and rotates from the bottom surface, thereby rotating the upper plate member 1321 and the lower plate member 1322 integrally. Alternatively, the upper plate member 1321 may be pushed and rotated by the rotary support on the lower plate member 1322, and various other modifications are possible.

As described above, in the present embodiment, equipment such as a BOP and an LMRP can be easily transported to an automobile through a skid 120, and it is possible to easily carry the equipment such as a BOP and an LMRP The viewing direction of the BOP can be automatically rotated through the turntable 130 integrated with the rail 110 to change the viewing direction and to move the viewing direction, thereby improving the working efficiency.

10 to 12 are views for explaining an ejection prevention device transport system according to another embodiment of the present invention. The same or corresponding elements as those of the above-described embodiment will be denoted by the same reference numerals and duplicate descriptions thereof will be omitted.

Referring to Figs. 10 to 12, the ejection prevention device delivery system 200 will be described. The present embodiment is different from the embodiment in that the turntable 230 is fixed or assembled.

That is, in the turntable 130 of the embodiment described above, the rails 110 are integrated so that the turntable 130 and the rail 110 have the same horizontal line, so that a part of the movement route of the rail 110 is transmitted to the turntable 130, As shown in FIG.

However, in the present embodiment, the movement route can be made only by the rail 110, and the turntable 230 can be integrated with the skid 220. Here, the integration may mean that the turntable 230 is simply seated on the skid 220, or is assembled by fitting or bolt and screw connection. In this embodiment, the turntable 230 and the skid 220 can be assembled and separated, and the turntable 230 and the skid 220 can be replaced with each other.

The skid 220 of the present embodiment may include a moving support 221 to move on the rail 110 in the same or similar manner as one embodiment. The skid 220 may be slidably mounted on the rail 110 so that the skid 220 may be slidably mounted on the rail 110. In this case, As shown in FIG.

The skid 220 may include a driving wheel 222 for automatic driving and the driving wheel 222 may include a hull 11 on which a plurality of rollers are disposed by rails 110, And can be rotated.

The turntable 230 is provided on the skid 220 and is rotatable so that the front direction of the ejection preventing device is changed. The turntable 230 of this embodiment is moved together with the skid 220 so that the BOP 18 on the turntable 230 can be rotated without being limited to the space. Alternatively, the turntable 130 of the embodiment may be embedded in the rail 110 so that the BOP 18 may be rotated only at a position where the turntable 130 is fixed. It is different from the example.

Here, the turntable 230 may include a support portion 231 and an operation portion 232.

The support portion 231 supports the ejection preventing device, and the operation portion 232 is provided, and the operation portion 232 rotates the support portion 231. The turntable 230 of the present embodiment is provided on the skid 220 in a manner different from that of the embodiment, and can be replaced with a rotation mechanism of the turntable 130 of the embodiment, and a duplicate description will be omitted .

As described above, in the present embodiment, the BOP, the LMRP, and the X-MAS TREE are rotated by the turntable 230 provided on the skid 220 without restriction of time and space, The apparatus is rotated in correspondence with the direction of rotation, and the apparatus is automatically rotated in correspondence with the viewing direction of the BOP and the like, which is taken down from the door, thereby improving the working efficiency.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.

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 ship 11: Hull
12: Temple of Prayer 13: Derrick
16: crane 17: mud treatment tank
18: BOP 100: Spill prevention device transport system
110: rails 120, 220: skid
121: moving support portion 1211: insertion member
1212: Roller member 130: Turntable
131: extension rails 132, 231:
1321: upper plate member 1322: lower plate member
133, 232: operating part 222: driving wheel

Claims

rail;
A skid moving on said rail to carry an ejection protection device; And
And a rotating turntable provided on the rail,
Wherein the skid moves along the rail and moves along the rail in a rotated state by the turntable.

The turntable according to claim 1,
An extension rail forming a movement path corresponding to the rail so that the skid moves along the turntable;
A support portion on which the extension rail is provided; And
And an operating portion provided on the support portion for rotating the support portion.

3. The apparatus according to claim 2,
An upper plate member provided with the extension rail and supporting the skid; And
And a lower plate member connected to the upper plate member.

3. The apparatus according to claim 2,
And a rotatable supporter provided on the supporter for rotating the supporter.

The turntable according to claim 1,
And rotated 360 degrees at intervals of 90 degrees.

The method according to claim 1,
Wherein the rail is recessed in the hull.