KR20100121403A

KR20100121403A - Drill ship

Info

Publication number: KR20100121403A
Application number: KR1020100021500A
Authority: KR
Inventors: 박지순
Original assignee: 삼성중공업 주식회사
Priority date: 2009-05-08
Filing date: 2010-03-10
Publication date: 2010-11-17

Abstract

The drilling line is initiated. A hull having a space formed therein to accommodate the riser, and having an opening formed in the upper deck to carry out the riser accommodated in the space; A cat walk whose upper end is formed higher than the upper deck; And a drilling vessel provided on the hull and including a crane device for transferring the riser to the catwalk, to increase the space utilization on the upper deck, and additional facilities such as the riser can be easily installed in the space on the upper deck without space restrictions by the riser. Can be installed.

Description

DRILL SHIP}

The present invention relates to a drilling vessel.

Recently, a drilling ship equipped with drilling equipment and capable of sailing on its own power has been developed and used for subsea drilling.

1 is a schematic diagram showing a drilling operation of a general drilling ship.

As shown in FIG. 1, a drilling tower 80 and a moonpool 12 are formed in a drilling line 10, through which a drill pipe 16 and a riser are drilled through the doorpool 12. , 18) can be drilled down to the bottom of the seabed 20 to drill the seabed resources stored in the well 24 located in the rock (22).

Here, the riser 18 is a kind of underwater pipe installed between the drilling line 10 and the bottom of the seabed 20 before the drill pipe 16 is advanced to the oil well, and the drill pipe 16 for digging the seabed is in the seawater. It is prevented from being exposed and functions as a conveying passage such as a mud for electric, hydraulic and cooling lubrication. When the riser 18 is installed, the drilling pipe 16 is advanced downward through the riser 18 to the well 24 to perform drilling.

2 is a side view showing a general drilling line. As shown in FIG. 2, the riser 18 is constructed by connecting unit risers of short length to each other, and the riser 18 is loaded using a support structure (not shown) or the like on the upper deck 14 of the drilling vessel. And are transported to sea to perform drilling operations.

However, in drilling operations, in addition to drill pipes and risers, a number of additional facilities are required, which are additionally installed on the upper deck in various forms such as mounted on skids or container boxes. do. Thus, when risers are shipped to the upper deck as in the prior art, space constraints are placed in placing additional fixtures on the upper deck.

Embodiments of the present invention is to provide a drilling vessel that can increase the space utilization on the upper deck so that additional equipment, such as in addition to the riser can be installed without space restrictions.

According to an aspect of the present invention, a space is formed inside to accommodate the riser (riser), the hull formed in the upper deck (upper deck) to carry out the riser accommodated in the space to the outside, the position of the opening and A drill ship may be provided that includes a carriage correspondingly installed in the space portion, and a first crane installed in the space portion and transferring a riser accommodated in the space portion to the carriage.

The drilling line may further include a rail installed at a lower surface of the upper deck so as to be located outside the opening and guides the movement of the first crane.

The rails are a pair and may be disposed on both sides of the opening, respectively.

The drilling vessel may further include a partition wall installed in the space portion so as to separately accommodate the riser.

The carriage may be arranged on top of the partition.

The carriage may be grooved to accommodate a portion of the riser.

The width and length of the opening may be larger than the riser and respectively smaller than the riser housed in the space.

The drilling vessel may further include a second crane installed on the upper deck to carry out the riser transferred to the carrier out of the hull.

According to another aspect of the invention, the space is formed inside to accommodate the riser, the hull formed with an opening in the upper deck to carry out the riser accommodated in the space portion to the outside; A cat walk whose upper end is formed higher than the upper deck; And a drilling vessel provided on the hull and including a crane device for transferring the riser to the catwalk.

The catwalk is installed in the space portion, the crane device may be installed on the upper deck to be provided on the upper portion of the catwalk.

Embodiments of the present invention may further include a partition wall installed in the space portion so as to accommodate the riser.

Embodiment of the present invention may further include a hatch cover detachably installed on the upper deck to cover the space.

The crane device, the support provided on the upper deck; A rail supported by the support; A trolley installed to be movable along the rail; And one end may be connected to the trolley, the other end may include a wire provided with a gripping member for holding the riser.

The catwalk may have a seating groove formed to accommodate a portion of the riser.

According to embodiments of the present invention, by increasing the space utilization on the upper deck, additional equipment such as the riser can be easily installed in the space on the upper deck without the space constraints by the riser.

1 is a schematic view showing a drilling operation of a general drilling ship.
2 is a side view showing a general drilling line.
3 is a cross-sectional view showing a drilling line according to an embodiment of the present invention.
4 is a plan view showing a drilling line according to an embodiment of the present invention.
Figure 5 is an operating state diagram showing the transfer of the riser accommodated inside the drilling vessel according to an embodiment of the present invention.
FIG. 6 is an enlarged view of a portion A of FIG. 5; FIG.
7 is a plan view showing a drilling line according to another embodiment of the present invention.
8 is a cross-sectional view illustrating a state of cutting along a line II of FIG. 7.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

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

3 is a cross-sectional view showing a drilling line 100 according to an embodiment of the present invention. 4 is a plan view showing a drilling line 100 according to an embodiment of the present invention.

According to the present embodiment, as shown in FIGS. 3 and 4, a space 112 is formed therein to accommodate the riser 180, and the riser 180 accommodated in the space 112 is formed. Hull 110 having an opening 116 formed in an upper deck 114 so as to be transported to the outside, a carrier 120 installed in the space 112 to correspond to the position of the opening 116, and a space A drill ship 100 including a first crane 130 installed in the unit 112 and transferring the riser 180 accommodated in the space 112 to the carriage 120 is presented.

According to the present embodiment as described above, the space portion 112 is formed in the hull 110 to accommodate the riser 180, it is possible to increase the space utilization on the upper deck (114). That is, since the riser 180 can be accommodated in the space portion 112 inside the hull 110 rather than the space on the upper deck 114, additional facilities necessary for drilling work is limited to the spatial constraints by the riser 180. It can be easily installed on the upper deck 114 without receiving.

Hereinafter, each configuration and operation will be described with reference to FIGS. 4 to 6.

Figure 4 is a plan view showing a drilling line according to an embodiment of the present invention, Figure 5 is an operating state diagram showing the transfer of the riser accommodated inside the drilling line according to an embodiment of the present invention, Figure 6 is a part A of Figure 5 Partial enlarged view shown.

As shown in FIG. 5, the hull 110 has a space 112 formed therein, and the riser 180 may be accommodated in the space 112. Accordingly, the space in which the riser 180 has been shipped on the upper deck can be effectively used for installation of additional equipment having a form such as a skid or a container box.

The support 112 (not shown) may be installed in the space 112, and by using the support structure, the riser 180 may be fixed in the space 112 without flow.

In addition, as shown in FIGS. 4 and 5, an opening 116 is formed in the upper deck 114 above the hull 110. The riser 180 accommodated in the space 112 in the hull 110 may be carried out of the hull 110 through the opening 116 using the first crane 130 and the second crane 160. have.

In addition, a plurality of partition walls 150 may be installed in the space part 112 in the hull 110, as shown in FIG. 5. The partition wall 150 is installed perpendicular to the bottom surface of the space portion 112 to separate the plurality of risers 180 accommodated in the space portion 112 by some number.

Thus, by installing the partition wall 150 in the space portion 112 to accommodate the riser 180 is separated, the vibration transmitted to the riser 180 during the voyage of the drilling ship 100 can be buffered by the partition wall 150. have. Therefore, since the flow of the riser 180 in the space 112 may be minimized, the riser 180 may be more stably transported.

In addition, as shown in FIGS. 4 and 5, the carriage 120 may be installed in the space 112 in the hull 110 to correspond to the position of the opening 116. That is, the carrier 120 is installed in the space 112 to be exposed to the outside by the opening 116 formed in the upper deck 114. The riser 180 is transferred to the carriage 120 by the first crane 130, and the transferred riser 180 is temporarily mounted on the carriage 120, and then, by the second crane 160. It is carried out to the hull 110.

This carriage 120 has an appropriate height adjacent to the opening 116 so that the riser 180 mounted on the carriage 120 can be easily taken out of the hull 110 by the second crane 160. Can be installed on

In this case, the carriage 120 is disposed above the partition wall 150, as shown in FIG. 5. As the carrier 120 is disposed above the partition wall 150, the riser 180 is lifted upward by the first crane 130 to a height above the partition wall 150, and then the riser 180 is lifted. Since it does not need to be lowered more than necessary for temporary mounting on the pallet 120, the riser 180 can be more effectively transferred.

The carriage 120 is formed with a groove 122 to accommodate a portion of the riser 180 as shown in FIGS. 5 and 6. As the groove 122 is formed on the upper surface of the pallet 120, the riser 180 transferred by the first crane 130 may be prevented from flowing on the pallet 120. Accordingly, even when a load or vibration is applied to the hull 110 during the voyage of the drilling vessel 100, it is possible to more stably maintain the position of the riser 180 temporarily mounted on the carriage 120.

5 and 6, the groove 122 is formed on the carriage 120 to have a depth smaller than the radius of the riser 180, so that the groove 122 is formed when the riser 180 is removed. 2 does not hinder the grip of the riser 180 by the 160.

Meanwhile, as shown in FIG. 3, the opening 116 is formed such that its width d1 and length l1 are larger than the riser 180 accommodated in the space 112 and smaller than the carriage 120, respectively. do.

The width d1 and the length l1 of the opening 116 are larger than the width d2 (ie, the diameter) and the length l2 of the riser 180, so that the riser 180 can easily pass therethrough. The width d1 and the length d2 of the 116 are smaller than the width d3 and the length l3 of the pallet 120, thereby minimizing waste of space on the upper deck 114 due to the opening 116. .

That is, while the riser 180 is sufficiently taken out, the size of the opening 116 is optimized so that the area on the upper deck 114 is not wasted by the opening 116, thereby maximizing the space utilization of the upper deck 114. Can be.

On the upper portion of the space 112 in the hull 110, that is, the lower surface of the upper deck 114, as shown in Figures 3 and 4, a rail (140, 140) is installed, Guide the left and right movement of the first crane 130 for transport. In this case, the rail 140 is provided outside the opening 116 as shown in FIG. As such, the rail 140 is installed in a region where the opening 116 is not formed in the lower surface of the upper deck 114, so that the riser 180 easily opens the opening 116 without being disturbed by the rail 140. Through the hull 110 can be taken out.

In addition, as shown in FIG. 4, the rails 140 are a pair and are disposed at both sides of the opening 116, respectively. That is, the pair of rails 140 are disposed on both sides of the opening 116 so as to be symmetrical with respect to the opening 116, and both sides of the first crane 130 can slide on the pair of rails 140, respectively. To be combined. Accordingly, the first crane 130 is supported on the rail 140 more stably, and can be stably driven toward the carriage 120.

3 and 4, the first crane 130 is installed in the space part 112 and transfers the riser 180 accommodated in the space part 112 to the carriage 120. That is, the first crane 130, as shown in Figure 3, the driving body (driving body 132) that moves along the rail 140, the wires drawn out from the drive body 132 in the vertical direction (wire, 134, a gripper 136 installed at an end of the wire 134 to grip the riser 180 accommodated in the space 112.

Accordingly, the riser 180 is first gripped by the gripper 136 and moves to the upper side of the space 112 as the wire 134 enters, and then the drive body 132 follows the rail 140. As it moves, it is transferred to the carriage 120. The riser 180 positioned on the pallet 120 may be brought into contact with the pallet 120 according to the withdrawal of the wire 134, and may be detached from the gripper 136 and temporarily mounted on the pallet 120.

As shown in FIG. 3, the second crane 160 is installed on the upper deck 114 to carry out the riser 180 transferred to the carriage 120 to the outside of the hull 110. As described above, since the riser 180 accommodated in the space 112 is transferred to the carriage 120 by the first crane 130, the riser 180 transferred to the carriage 120 is thus opened. In order to carry it out through 116, a second crane 160 is installed on the upper deck 114.

That is, the second crane 160 grasps the riser 180 mounted on the carriage 120, is carried out through the opening 116, and then a cat walk 170 mounted on the upper deck 114. Transfer to. The riser 180 transferred to the catwalk 170 is transferred to a drill floor (not shown), and is vertically placed to be inserted into a door pool (not shown).

Hereinafter, referring to FIG. 5, the operation of carrying out the riser 180 shipped to the space 112 of the drilling vessel 100 according to the present embodiment to the outside will be described.

As shown in FIG. 5, the riser 180 is accommodated in the space 112 of the hull 110, so that additional equipment necessary for the drilling operation is not affected by the riser 180 and is on the upper deck 114. It can be effectively arranged in. At this time, the riser 180 is partially accommodated by the partition wall 150.

In order to carry out the riser 180 accommodated in the space 112 to the outside, first, as shown in FIG. 5, the first crane 130 grips the riser 180 with the gripper 136 and wires 134. The riser 180 is moved upwards so as to be at a position higher than the partition wall 150 by drawing a).

Subsequently, as shown in FIG. 5, with the wire 134 drawn and the riser 180 positioned upward, the drive body 132 of the first crane 130 moves along the rail 140. 120) (from left to right with reference to FIG. 5) until the riser 180 is positioned on the pallet 120.

Subsequently, as shown in FIG. 5, the wire 134 is partially pulled out so that the riser 180 is placed on the pallet 120. After the riser 180 is placed on the carriage 120, the riser 180 is removed from the gripper 136, so that the riser 180 is temporarily mounted on the carriage 120, and the riser 180 is formed by the opening ( 116) is exposed to the outside.

Subsequently, the riser 180 is carried out of the hull 110 by the second crane 160, and the lifted riser 180 is transferred to the catwalk 170 installed on the upper deck. The riser 180 is transferred to the drill floor (not shown) through the catwalk 170, and the riser 180 vertically disposed on the drill floor may be inserted vertically toward the bottom of the sea floor through the door pool.

7 is a plan view showing a drilling line according to another embodiment of the present invention, Figure 8 is a cross-sectional view showing a state cut along the line I-I of FIG.

7 and 8 to describe a drilling line according to an embodiment of the present invention.

The drilling vessel may include a hull 110, a catwalk 270 and a crane device 230. Unlike one embodiment of the present embodiment, all of the upper portion of the space 112 can be opened, the carriage (see FIG. 3: 120) is not required separately, using a single crane device 230 The riser 180 can be transferred to the catwalk 270.

The hull 110 may have a space portion 112 formed inside the upper deck 214 to accommodate the riser 180, and an upper deck so that the riser 180 accommodated in the space 112 may be carried out to the outside. An opening 216 may be formed in 214. The space 112 may be provided adjacent to the drilling tower (80).

The catwalk 270 may be installed in the space part 112. The catwalk 270 may have an upper end higher than the upper deck 214.

The crane device 230 may be installed on the upper deck 214 to be provided on the upper portion of the catwalk 270. The crane device 230 may transfer the riser 180 to the catwalk 270.

According to the drilling vessel of this configuration, the space portion 112 is formed in the hull 110 to accommodate the riser 180, thereby increasing the space utilization on the upper deck 214. That is, since the riser 180 can be accommodated in the space portion 112 inside the hull 110 rather than the space on the upper deck 214, additional facilities required for drilling work is limited by the riser 180 It can be easily installed on the upper deck 214 without receiving.

The drilling line according to an embodiment of the present invention will be described in more detail below.

The hull 110 may have a space 112 formed therein, and a riser 180 may be accommodated in the space 112. Accordingly, the space in which the riser 180 has been shipped on the upper deck can be effectively used for installation of additional equipment having a form such as a skid or a container box.

In addition, an opening 216 may be formed in the upper deck 214. The riser 180 accommodated in the space 112 in the hull 110 may be carried out of the space 112 through the opening 216 using the crane device 230.

In addition, a plurality of partition walls 150 may be installed in the space part 112 in the hull 110. The partition wall 150 may be installed perpendicularly to the bottom of the space part 112, and may separate a plurality of risers 180 accommodated in the space part 112 by some number.

As such, by installing the partition wall 150 in the space 112 to allow the riser 180 to be separated and accommodated, the vibration transmitted to the riser 180 during the voyage of the drilling ship may be buffered by the partition wall 150. Therefore, since the flow of the riser 180 in the space 112 may be minimized, the riser 180 may be more stably transported.

In addition, the catwalk 270 may be installed in the space 112 to be perpendicular to the bottom surface. The catwalk 270 may have a seating groove 271 to accommodate a portion of the riser 180. Since the mounting groove 271 is formed on the upper surface of the catwalk 270, the riser 180 transferred by the crane device 230 may be prevented from flowing on the catwalk 270. Accordingly, even when a load or vibration is applied to the hull 110 during the voyage of the drilling ship, it is possible to more stably maintain the position of the riser 180 temporarily mounted on the catwalk 270. Since the seating groove 271 is formed on the catwalk 270 to have a depth smaller than the radius of the riser 180, the seating groove 271 is riser 180 by the crane device 230 at the time of carrying out the riser 180 Does not interfere with the holding of. Here, the drilling tower 80 may be provided on the upper deck 214 adjacent to the catwalk 270.

The catwalk 270 may be formed to have the same height as the drill floor (not shown), as shown in the figure. The riser 180 transferred to the catwalk 270 is transferred to the drill floor by a crane (not shown) in the drilling tower 80, and may be standing vertically to be inserted into the door pool (not shown).

The crane device 230 is disposed on the upper portion of the catwalk 270, and may raise the riser 180 to move the riser 180 to the catwalk 270. That is, the riser 180 accommodated in the space 112 may be gripped by the crane device 230 and transferred to the catwalk 270.

The crane device 230 may be provided with a support 231, a rail 233, a trolley 235, and a wire 237.

Support 231 may be provided on the upper deck. The support 231 may be installed in the upper deck 214 as a pair in the center of the opening 216 so that the trolley 235 can be moved along the center portion of the riser 180 in the horizontal direction.

The rail 233 may be installed at the top of the support 231. The rail 233 is installed to guide the left and right movement of the trolley 235 for the transfer of the riser 180. The rail 233 may be formed over the entire length from one end to the other end of the opening 216, so that the riser 180 accommodated in the space 112 may be gripped and transported individually.

The trolley 235 may be installed to be movable along the rail 233. One end of the wire 237 may be connected to the trolley 235 to be drawn out from the trolley 235 in the vertical direction. The other end of the wire 237 may be provided with a grip member 239 of the tongs for gripping the riser 180. Accordingly, the riser 180 is first gripped by the gripping member 239, and moves to the upper side of the space 112 according to the inlet of the wire 237, and then the trolley 235 follows the rail 233. As it moves, it may be transferred to the catwalk 270. The riser 180 located on the catwalk 270 may be mounted on the catwalk 270 as the wire 237 is drawn out.

The hatch cover 290 may be detachably installed on the upper deck 214. The hatch cover 290 covers the space part 112, so that the upper portion of the hatch cover 290 may be utilized as a space as the upper deck 214.

In order to carry out the riser 180 accommodated in the space portion 112 to the outside to be placed on the catwalk 270, first, the crane device 230 grips the riser 180 with the gripping member 239 and the wire 237. The riser 180 is moved upwards so as to be in a position higher than the catwalk 270 by introducing the same.

Then, with the wire 237 pulled in and the riser 180 positioned upwards, the trolley 235 along the rail 233 toward the catwalk 270 side when the riser 180 is positioned on the catwalk 270. To go.

Thereafter, the wire 237 is partially pulled out so that the riser 180 is placed on the catwalk 270. After the riser 180 is placed on the catwalk 270, the riser 180 is detached from the gripping member 239, so that the riser 180 is mounted on the catwalk 270, and the riser 180 is mounted on the drilling tower 80. Can be transferred to the state. Thus, the riser 180 transferred to the catwalk 270 may be transferred to the drill floor through the catwalk 270, and the riser 180 vertically disposed on the drill floor is inserted vertically toward the bottom of the sea floor through the door pool. Can be.

Although the drilling vessel according to an embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art to understand the spirit of the present invention are configured within the scope of the same idea. Other embodiments may be easily proposed by adding, changing, deleting or adding elements, but this will also fall within the spirit of the present invention.

100: drill ship 110: hull
112: space 114, 214: upper deck (upper deck)
116, 216: opening 120: carrier
122: groove 130: first crane
132: driving body 134, 237: wire
136: gripper 140, 233: rail
150: bulkhead 160: second crane
170, 270: cat walk 180: riser
230: crane device 290: hatch cover

Claims

A hull having a space formed therein to accommodate a riser, and having an opening formed in an upper deck to carry out a riser accommodated in the space to the outside;
A carriage installed in the space part to correspond to the position of the opening; And
A drill ship including a first crane installed in the space part and transferring a riser accommodated in the space part to the carrier.

The method of claim 1,
And a rail installed at a lower surface of the upper deck so as to be located outside the opening and configured to guide a movement of the first crane.

The method of claim 2,
The rail is a pair and the drilling line, characterized in that disposed on each side of the opening.

The method of claim 1,
And a partition wall provided in the space part so that the riser can be separately accommodated.

The method of claim 4, wherein
And the carriage is disposed on top of the partition wall.

The method of claim 5,
Drilling vessels, characterized in that the groove is formed in the carriage to accommodate a portion of the riser.

The method according to any one of claims 1 to 6,
And a width and a length of the opening are larger than a riser accommodated in the space, respectively, and smaller than a carriage.

The method according to any one of claims 1 to 6,
Drilling vessel is installed on the upper deck, further comprising a second crane for carrying out the riser transferred to the carrier to the outside of the hull.

A hull having a space formed therein to accommodate the riser, and having an opening formed in the upper deck to carry out the riser accommodated in the space;
A cat walk whose upper end is formed higher than the upper deck; And
Drilling vessel provided on the hull, including a crane device for transporting the riser to the catwalk.

10. The method of claim 9,
The catwalk is installed in the space portion,
Drilling line, characterized in that the crane device is installed on the upper deck to be provided on the upper portion of the catwalk.

The method of claim 9 or 10,
Drilling vessels, characterized in that further comprising a partition wall is provided in the space portion so as to accommodate the riser.

The method of claim 9 or 10,
And a hatch cover detachably installed on the upper deck to cover the space.

The method of claim 9 or 10,
The crane device,
A support provided on the upper deck;
A rail supported by the support;
A trolley installed to be movable along the rail; And
One end is connected to the trolley, the other end of the drilling line, characterized in that it comprises a wire provided with a gripping member for holding the riser.

The method of claim 9 or 10,
Drilling vessels, characterized in that the seating groove is formed in the catwork to accommodate a portion of the riser.