KR20150068071A - Drillship - Google Patents

Abstract

Disclosed is a drillship. The drillship of the present invention comprises: a stem space unit prepared in the stem direction around a moon pool; and an X-mas tree skid unit prepared in the stem space unit, and transferring an X-mass tree to the moon poll. The stem space unit prepares a ROV (remotely operated vehicle) arranged in a well test area of the hull over a riser rack and prepares a stern space unit on the well test area, and is prepared by transferring the longitudinal center of gravity of the hull toward the stern space unit direction.

Description

DRILLSHIP {DRILLSHIP}

The present invention relates to a drill ship, and more particularly, to a drill ship that moves a longitudinal center of a hull in the direction of a stern to secure an additional space in the direction of a bow of a ship, It is about the drill ship that can be utilized.

With the rapid development of international industrialization and industry, the use of earth resources such as oil is gradually increasing, and thus the stable production and supply of crude oil is becoming an increasingly important issue globally.

For this reason, recently marginal field or deep-sea oil development has been economically feasible, which has been neglected due to economic difficulties so far. Therefore, with the development of submarine mining technology, drilling facilities suitable for the development of such oilfields A drilling rig equipped with a hull has been developed.

Conventional submarine drilling has been mainly used for a rig ship or a fixed platform for underwater drilling which can be sailed only by other tugboats and which is used for drilling underwater at anchor point on the sea using a mooring device.

In recent years, however, drill ships and FPSO (Floating, Production, Storage and Offloading), which are manufactured in the same form as ordinary ships, have been developed to mount advanced drilling equipment and to navigate with their own power. Has been used for subsea drilling and production.

In order to develop small-scale oilfields, drilling rigs are designed to be able to navigate powerlessly without a tugboat, depending on the working conditions that need to be moved frequently.

FIG. 1 is a schematic view showing a starboard side view of a conventional drill ship, and FIG. 2 is a plan view schematically showing the drill ship shown in FIG.

As shown in FIG. 1, a mud module 60, in which a mud supply-related equipment such as a high-pressure mud pump and an active mud tank are installed in the main part deck MD, and a drill pipe is mounted on the top part, is provided .

The above-mentioned high-load mud pump, active mud tank, cement unit and the like are provided in the inside of the mud module 60, and a drill pipe used for drilling is mounted on the upper side of the mud module 60, The center of gravity of the drill ship also increases.

As a result, when the ship is tilted sideways by the external force, the stability of the ship, which is the property of returning to the original state, is also degraded, which may adversely affect the stability of the drill ship. The stability is good and the drill ship can not be overturned even in severe winds and waves.

The main deck MD is provided with a drill floor 10 provided at a place where drilling is performed and a drill floor 10 is provided with a high load derrick 20, a traveling block, And a compensator (heave compensator) are installed.

The drill floor 10 is installed at a predetermined height from the main deck MD in consideration of the height of the trolley (T, trolley) loaded with BOP (Blowout Preventer) and BOP.

That is, the BOP or the X-mas tree 140 placed on the main deck MD in the area around the moonpool 70 is loaded on the trolley T which is movable in the longitudinal direction of the door frame 70 Is moved to the center portion of the door frame 70 and is lowered to the seabed. As shown in FIG. 1, the conventional trolley T is installed so as to protrude from the main deck MD and has a predetermined height from the main deck MD.

Therefore, considering the height of the trolley T and the height of the BOP, it is necessary to install the drill floor 10 at a certain height, and there is also a limit to lowering the height of the drill floor 10 where many equipment with high load is installed There was also a limit to lowering the center of gravity of the drill ship.

1, the center of gravity of the derrick 20, which is the main load of the drill ship, is located at the forward end of the bow, not the center of the hull, .

Therefore, since the longitudinal center of gravity of the drill ship is offset in the forward direction, the transit condition causes the wave resistance (when the ship is running, a regular wave occurs at the ship's tail, The required energy loss of the ship is a kind of resistance, which is referred to as a wave resistance), which results in a deterioration of the moving performance and a disadvantage in stability and dynamic position at the time of drilling.

In order to solve the problem caused by the wave resistance, it is necessary to adjust the ballasting of the aft part to adjust the trim so that a separate hold ballast tank should be provided at the stern part, which leads to an increase in the capacity of the ballast tank.

In the past, in the operation of the X-mas tree which is provided at the upper part of the well after the drilling operation of the drill is finished and serves as a valve, the X- (XC, see Fig. 13) is provided in the area around the drill floor 10 (see Fig. 13).

Since the X-Maistri crane is provided at a high position in the peripheral area of the drill floor, it may cause the center of gravity in the vertical direction of the ship to increase, and when the ship is rocked, There is a concern about safety accidents.

Korean Patent Publication No. 2010-0135429 (Samsung Heavy Ind. Co., Ltd.) 2010.12.27.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an X-Maistri cranes, Which is capable of removing the drill bit.

According to an aspect of the present invention, there is provided an image forming apparatus comprising: a bow space portion provided in a direction of a bow of a peripheral region of a door frame; And an X-masstricide portion provided in the bow space portion to move the X-mas tree to the door frame, wherein the bow space portion is provided with a remotely operated vehicle (ROV) disposed in a well test area of the hull, A stern space portion is provided in the well test region and a longitudinal center of gravity of the hull is moved in the direction of the stern space.

The longitudinal center of the hull can be moved by moving the center of the door frame and the center of the derrick in the direction of the stern space.

The travel distance of the center of the frame and the center of the derrick may be 8 to 12 m.

The X-mas triched part includes: a rail provided at a bottom of the bow space; And a skid provided movably on the rail and having an X-Ma tree on the upper side thereof.

The rail may be provided in at least one of a width direction and a length direction of the bottom portion.

The skid includes a skid plate movably provided on the rail; A turntable rotatably mounted on the skid plate; And a driving unit provided at one of the skid plate and the bottom to drive the skid plate.

Further comprising a deck crane provided at a fore end of the peripheral region of the door frame, wherein interference of the drill floor is eliminated by the fore end space portion, and the deck crane is used to seat the X-mas tree to the X- .

According to another aspect of the present invention, in a drill ship, a longitudinal center of gravity of the hull is moved in the direction of the stern portion to provide a bow space portion in the peripheral region of the drum, And the X-mas triched part on which the mastri is mounted is provided.

The bow space may be provided by moving the drapery and the derrick in the direction of the stern space provided by arranging a remotely operated vehicle (ROV) disposed in a well test area of the hull.

Embodiments of the present invention provide an X-mas tree skid portion that moves the longitudinal center of the hull in the direction of the stern portion and moves the X-mas tree in the bow space around the secured space, And can operate efficiently.

In addition, a bow space, which is an additional space, is secured in the area around the door frame, so that the X-Maastri can be transferred to the trolley by using a deck crane that has not been conventionally used for interference with the drill floor.

Furthermore, since the movement performance is controlled by the capacity of the ballast tank less than the conventional one, the size of the ballast tank can be reduced to eliminate the deck step, thereby making it possible to integrate the hull structure and improve the longitudinal strength of the hull.

1 is a side view schematically illustrating a drill ship according to an embodiment of the prior art.
2 is a plan view of the drill ship shown in Fig.
FIG. 3 is a plan view schematically showing a state in which the ballast tank and the hold ballast tank are arranged in the drill ship of FIG. 1;
4 is a schematic view of a drill ship according to an embodiment of the present invention.
Fig. 5 is an enlarged perspective view of the doorway area shown in Fig. 4. Fig.
Fig. 6 is an enlarged perspective view of the main part of Fig. 5. Fig.
Fig. 7 is an enlarged view of the "A" area in Fig.
FIG. 8 is a view schematically showing that the height of the mud module is lower than that of the prior art by providing the mud weight of the present embodiment inside the hull.
9 is a view schematically showing that the longitudinal center of the hull is moved in the aft direction in the present embodiment.
10 is a plan view showing an arrangement of an ROV, a well test area, and a riser rack in a conventional drill ship.
11 is a plan view showing the arrangement of the ROV, the well test area, and the riser rack in the drill ship according to the present embodiment.
FIG. 12 is a plan view schematically showing a state in which an X-mas tree is arranged in a region around a postal matter in a conventional drill ship.
13 is a view schematically showing a state in which the X-mas tree shown in the side view of FIG. 12 is provided in the X-masculine hull for moving the trolley by the trolley.
FIG. 14 is a plan view schematically showing a state in which an X-mas tree is arranged in the area around the door frame in the drill ship according to the present embodiment.
15 is a side view of Fig.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

4 is a schematic view of a drill ship according to an embodiment of the present invention.

The drill ship 1 of the present embodiment has a structure in which the height of the drill floor 10 is lowered so that the center of gravity of the hull, specifically the vertical center of gravity, It can be lowered toward the bottom side.

The height of the drill floor 10 is lowered so that the center of gravity of the derrick 20, the traveling block and the heave compensator, which are heavy load objects installed on the drill floor 10, The entire center of gravity can be lowered toward the bottom side.

Since the height of the drill floor 10 is lowered, the height of the drill pipe conveying device 30 and the riser conveying device 40 for horizontally supplying the drill pipe P or the riser R to the drill floor 10 And the height of the deck crane DC that transports the drill pipe P or the riser R to the drill pipe conveying device 30 or the riser conveying device 40 can also be lowered.

As shown in FIG. 4, since the drill pipe conveying device 30 and the riser conveying device 40 are large in size and heavy in weight and the deck crane DC is an object of high load, It is possible to lower the center of gravity in the vertical direction.

Furthermore, the present embodiment provides a shale shaker (not shown) that separates the mud from the drilling cut, including the mud that is disposed below the drill floor 10 and returns through the riser R, ) Can be installed in the drilling deck house 50, as shown in FIG. 4, in three stages.

In this embodiment, the mud pump 160 for pumping the mud to the sea bed and the active mud tank 170 for storing the mud before being pumped by the mud pump 160 are disposed inside the mud module 60 It is also possible to reduce the vertical center of gravity of the hull by providing it inside the hull.

4, the longitudinal center of gravity of the hull can be moved toward the stern portion by moving the center of the door frame 70 toward the stern portion.

As will be described in detail later, in this embodiment, there are two methods that can move the longitudinal center of the hull in the aft direction. First, the center of the platform 70 is moved toward the stern section by the aft section space section provided by moving the ROV (110, remotely operated vehicle) disposed in the well test area 120 of the stern section to the riser rack 130 It is a way to deploy. Secondly, recognizing that the capacity of the ballast tank (BT) required due to the downward placement of the above-mentioned heavy object is reduced, a portion of the hold ballast tank (HB) disposed in the stern section is removed, In the direction of the stern portion.

As will be described later in detail, the longitudinal center of the hull is moved in the direction of the stern part, so that an additional space can be secured in the direction of the bow, and an X-mas tricycle part 150 (see Fig. 14) It is also possible to relocate the tanks containing mud-related tanks efficiently.

This embodiment improves the stability, which is a property of returning to the original state when the hull is tilted sideways due to external forces such as heavy wind or high waves during drilling operation or during operation, ) Can not be overturned and the drilling operation or the operation can be stably performed.

Hereinafter, the fact that the vertical center of gravity of the hull can be lowered by lowering the height of the drill floor 10 will be described first, and then the longitudinal center of the hull will be moved toward the stern.

Fig. 5 is an enlarged perspective view of the doorway area shown in Fig. 4, and Fig. 6 is an enlarged perspective view of the main part of Fig.

5, the trolley rail mounting member 80 is provided in the wall portion of the door frame 70 at a position lower than the upper end of the door frame 70 to reduce the height of the trolley T, (H, see Fig. 4) to the present time. As a result, the center of gravity of the hull in the vertical direction can be lowered, thereby improving the stability.

Specifically, when the height of the drill floor 10 is reduced, the center of gravity of the drill ship 1 in the vertical direction can be lowered. This is because the upper part of the drill floor 10 is provided with a derrick 20, a traveling block ) And a heave compensator are installed. Therefore, if the height of the drill floor 10 is reduced, the center of gravity in the vertical direction can be efficiently lowered.

5 and 6, the trolley rail mounting member 80 is extended in the longitudinal direction of the door frame 70 to the side wall of the door frame 70 at a position lower than the upper end of the door frame 70 So that the center of gravity in the vertical direction can be lowered by lowering the height of the trolley T.

In the present embodiment, the trolley rail mounting member 80 may have a rectangular cross-sectional shape having a hollow interior, and a plate-shaped reinforcing member may be provided inside the trolley rail mounting member 80.

A trolley rail 90 for guiding the movement of the trolley T and a guide projection G for guiding the trolley T are provided on the upper side of the trolley rail mounting member 80 in this embodiment, And a skid beam 100 supporting the trolley T in two stages can be provided.

The trolley rail 90 is provided on the trolley rail mounting member 80 instead of the main deck MD so that an additional working space can be secured in the main deck MD, The interference by the rail 90 is eliminated, so that the additional rail AR can be extended to the edge of the door frame 70, as shown in Fig. The additional rail AR may be provided with a drilling rig so as to be movable by the door frame 70.

A riser conveying device 40 provided on the upper side of the riser rack 130 for conveying the riser R mounted on the riser rack 130 to the drill floor 10 because the height of the drill floor 10 is lowered; A drill pipe transfer device 30 provided on the upper side of the mud module 60 for transferring the drill pipe P to the drill floor 10 and a riser R or a drill pipe P to the riser transfer device 40 ) Or the height of the deck crane (DC) to be conveyed to the drill pipe conveying device 30 can be lowered, so that the vertical center of gravity can be further lowered.

In this embodiment, a recess area is formed in the wall portion of the door frame 70 so as to be recessed in the bottom direction without the trolley rail mounting member 80 described above, and a trolley- Rails can also be provided.

The present embodiment is characterized in that the height of the drill floor 10 is reduced as described above or the weight including the mud pump 160 and the active mud tank 170 is provided inside the hull, The deck level of the ballast tank can not be matched with the deck level of the machinery room, thereby preventing the deck step from being generated.

Specifically, in order to lower the center of gravity in the vertical direction, the capacity of the ballast tank (BT) was required to be higher than a certain level in consideration of stability. To this end, as shown in Fig. 1, the level of the deck has been generated without matching the step level of the machine room with the top of the ballast tank.

As a result, there has been an inconvenience to use a step at the time of passing from a bow to a stern of the hull, and an important longitudinal member is disconnected, which is also disadvantageous in terms of structural strength.

However, in the present embodiment, since the vertical center of gravity of the hull is lowered due to the downward placement of the drill floor 10 or the arrangement of the mud heavy weight in the hull, the role of controlling the ballast water capacity in terms of stability is relatively reduced, (BT) capacity can be reduced. As a result, the deck level can be integrated in the fore and aft direction as shown in the area "B" in Fig.

As a result, deck steps were eliminated and the athletic and aft directions were much more convenient than before.

Also, in the case of a drill ship, a plurality of pipes and cables pass in a forward and aft direction, but there is no moving means other than the trunk, but cables and pipes can be additionally disposed through the longitudinal extension of the zone.

Fig. 7 is an enlarged view of the area "A" in Fig. 4, and Fig. 8 is a view schematically showing that the height of the mud module is lower than that of the prior art when the mud weight of this embodiment is provided inside the hull.

This embodiment includes a mud pump 160 for pumping the mud to the sea bed and an active mud tank 170 for storing the mud supplied to the mud pump 160, It is possible to lower the center of gravity of the hull in the vertical direction by providing the hull inside the mud module 60 instead of the mud module 60.

That is, in the present embodiment, the center of gravity of the hull in the vertical direction may be lowered by selectively applying the lowering of the height of the drill floor 10 and the provision of the mud heavy material inside the hull.

In addition, the present embodiment improves the stability and the mobility by arranging the above-mentioned mud heavy material, so that it is possible to optimally arrange the tank by removing the whole or part of the unnecessary hold ballast tank (HB, see Figs. 8 and 9).

Furthermore, since the mud weight in the mud module 60 is moved to the inside of the ship, the structure of the mud module 60 can be simplified and reduced in weight.

Specifically, as shown in FIG. 8 (a), since the mud weight including the mud pump and the active mud pump is disposed in the inside of the mud module 60, that is, at a high position, And a hold ballast tank (HB) provided at the stern section was required for control.

However, in the present embodiment, as shown in FIG. 8 (b), the mud weight including the mud pump 160 and the active mud pump 160 is moved to the inside of the hull in the base direction, The center of gravity can be lowered.

Accordingly, the stability and the mobility are improved, thereby eliminating the unnecessary hold ballast tanks (HB), thereby securing an additional space. By rearranging various tanks in the additional space, the structure of the mud module 60 can be simplified and reduced in weight. Especially, since the equipment related to the mud system is located within a close range within the hull, it is possible to simplify the piping line.

9 is a view schematically showing that the longitudinal center of the hull is moved in the aft direction in the present embodiment.

In this embodiment, an additional space is secured in the direction of the stern portion, and the center of the drum 70 can be moved in correspondence with the secured space to move the longitudinal center of the hull in the direction of the stern portion.

1, the center of gravity of the derrick 20, which is the main load of the drill ship, is located at the bow, as the position of the center of the drum 70 is located at the bow than the center of the drill ship.

Therefore, since the longitudinal center of the drill ship is displaced in the forward direction, the wave resistance is increased due to the increased wave resistance in the transit condition, and the stability and the dynamic position are deteriorated during the drilling operation. 9 (a), the above-described problem is solved by providing a hold ballast tank HB at the stern part to adjust the trim.

The present embodiment solves the above-mentioned problem by securing an additional space in the stern portion rather than the hold ballast tank HB and moving the center of the door frame 70 toward the stern portion as shown in Fig. 9 (b) It was solved.

In the present embodiment, a method of ensuring additional space in the stern section is to provide a mud weight including the above-described mud pump 160 and active mud pump 160 inside the hull to eliminate the hold ballast tank HB, There is a method of securing a space in the riser rack 130. There is a method of providing the ROV 110 in the riser rack 130 and moving the longitudinal center of the ship by the space secured in the stern portion.

Reference numeral FB in FIG. 9 is a fuel storage tank region in which fuel containing marine gasoline oil (MGO) is stored. This embodiment can use a part of the area where the hold ballast tank HB is removed as an extension area of the fuel storage tank.

Hereinafter, the ROV 110 is provided in the riser rack 130 to move the longitudinal center of the hull by the space secured in the stern section.

10 is a plan view showing an arrangement of an ROV, a well test area, and a riser rack in a conventional drill ship, and FIG. 11 is a plan view showing an arrangement of an ROV, a well test area, and a riser rack in the drill ship according to the present embodiment .

In the conventional drill ship, the ROV 110 was placed at the port of the well test area, as shown in Fig. A well test device is placed in the well test area, and a riser rack 130 in which the riser R is loaded is disposed in the direction of the forefront of the well test area.

The riser rack 130 is divided into two zones with respect to the riser feeding device 40, as shown in Fig. 10, and a riser R is loaded in each zone. In the fore and aft direction of the loaded riser R, a riser access zone 131 is provided as shown in Fig. 10, and the riser approach zone 131 area has a vacant space.

11, the ROV 110 disposed on the port side of the conventional well test area 120 is moved in the direction of the forefront of the riser rack 130 to form a stern area 120 in the well test area 120, A space portion can be secured.

In addition, the conventional well test area 120 and the riser rack 130 can be combined into one module to eliminate unnecessary space.

In the present embodiment, the stern space area secured in the well test area 120 may be 8 to 12 m, which allows the center of the door frame 70 and the center of the derrick 20 to be moved 8 to 12 m in the stern section direction It can mean. This may also mean that in the conventional drill-in, the center of the door frame 70 is advanced 8 to 12 m forward in the bow direction.

As a result, in this embodiment, the longitudinal center of the hull is moved in the direction of the stern, so that the amount of ballast water required for the trim is reduced by the longitudinal center of gravity of the hull moving in the stern section direction have.

Reducing the amount of ballast water required at the stern means reducing the size of the ballast tank (BT), so that the various tanks can be relocated as described above.

In this embodiment, since the center of the door frame 70 and the center of the derrick 20 are moved toward the stern, the drill floor 10 provided with the derrick 20 is also moved toward the stern. Therefore, a space of 8 to 12 meters can be ensured in the peripheral area of the X-mas tree 140 disposed in the forward direction of the door frame 70.

This embodiment can efficiently utilize the additional space secured in the peripheral area of the X-mas tree 140, which will be described below.

12 is a plan view schematically showing a state in which an X-maistri is disposed in a region around a doorpath in a conventional drill ship, and Fig. 13 is a cross-sectional view of the X- Fig. 14 is a plan view schematically showing a state in which an X-maistri is arranged in a region around the door frame in the drill ship according to the present embodiment, Fig. 15 is a plan view schematically showing the X- Fig.

12, the X-mas tree 140 is disposed on the port side and the starboard side, respectively, in the fore-aft direction of the door frame 70, and the drill floor 10, as shown in Fig. 13, Maestri 140 provided between the mud module 60 and the trolley T. The trolley T is mounted on the X-

In this case, since the X-mas tree 140 is lifted by the X-mas tree crane XC and moved to the trolley T, it is dangerous to move the X-Ma tree 140 during the movement of the hull, And the X-Maastric cranes XC are arranged close to the drill floor 10, so that the vertical center of gravity of the hull becomes high.

The present embodiment recognizes this problem and provides an X-mas triched part 150 as shown in Fig. 14 in a bow space secured in the bow direction of the area of the door frame 70, The tree crane XC can be removed (see Fig. 15).

14, the X-mas triched part 150 includes a rail 151 provided at the bottom of the bow space secured in the bow direction of the door frame 70, a rail 151 And a skid 153 mounted on the upper side on which the X-mas tree 140 is mounted.

14, the rail 151 may be provided in a rectangular shape so that the skid 153 can be moved in all directions such as a forward portion, a stern portion, a port direction, and a starboard direction of the hull.

Further, the pair of rails 151 may be spaced apart from each other in a direction so that the skids 153 can be stably moved.

The skid 153 is provided to move the rail 151. The skid plate 155 is provided so as to be movable on the rail 151. The skid plate 155 is rotatably provided on the skid plate 155, And a driving unit 159 provided at one of the skid plate 155 and the bottom portion of the head space portion to drive the skid plate 155.

The turntable 157 may be formed in the shape of a circular plate, and may be coupled to be rotatable about a vertical axis of the central portion. At this time, the turntable 157 can be automatically rotated through a separate rotation drive unit such as a motor provided inside the skid plate 155 and rotating the vertical axis.

In addition, the upper surface of the turntable 157 may be formed with a different seating portion for stable seating of the X-Ma tree 140, and may be formed in various shapes such as a protrusion shape or a concave groove shape.

The drive unit 159 selectively moves the skid plate 155 in the forward direction, the stern direction, the leftward direction, and the starboard direction, and is provided at the bottom of the skid plate 155, And may be a motor provided with a pinion gear to be engaged with a gear.

In this embodiment, two driving units 159 may be provided, one for each of the port and starboard of the forefront space.

In this embodiment, the longitudinal center of the hull is moved in the aft direction to remove the X-mas tree crane (XC) in the bow space secured in the bow direction of the platform 70, The center of gravity of the hull in the vertical direction can be lowered.

As described above, according to the present embodiment, the center of gravity of the hull is lowered by arranging the drill floor at a predetermined height, and the longitudinal center of gravity of the hull is moved toward the stern, Performance can be improved.

Also, since the movement performance is controlled by the capacity of the ballast tank less than the conventional one, the size of the ballast tank can be reduced to eliminate the deck step, thereby making it possible to integrate the hull structure and improve the longitudinal strength of the hull.

Furthermore, the longitudinal center of gravity of the hull can be moved in the direction of the stern, thereby securing additional space in the direction of the forward portion of the platform, and this space can be utilized as an operating space of the X-mas tree.

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 or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

1: drill ship 10: drill floor
20: Derrick 30: Drill pipe feeder
40: riser conveying device 50: drilling deck house
60: Mud module 70:
80: trolley rail mounting member 90: trolley rail
100: Skid beam 110: ROV
120: well test area 130: riser rack
140: X-mas tree 150: X-mas tricide part
160: Mud pump 170: Active mud tank
DC: Deck crane G: Guide projection
HB: Hold ballast tank MD: Main deck
P: Drill pipe R: Riser
T: Trolley XC: X-Maastricht Crane

Claims (9)

A bow space portion provided in a bow direction of a peripheral region of the door frame; And
And an X-masstricide portion provided in the bow space portion to move the X-mas tree to the door frame,
Wherein the bow space portion is provided with a stern space portion in the well test region by providing a remotely operated vehicle (ROV) disposed in a well test region of the hull, and the longitudinal center portion of the hull test region is provided in the riser rack, of the gravity of the drill. The method according to claim 1,
Wherein the longitudinal center of the hull is moved by moving the center of the door frame and the center of the derrick in the direction of the stern space. The method of claim 2,
Wherein the movement distance of the center of the door frame and the center of the derrick is 8 to 12 m. The method according to claim 1,
The X-
A rail provided at the bottom of the bow space; And
And a skid mounted movably on the rail and having an X-Ma tree on its upper side. The method of claim 4,
Wherein the rail is provided in at least one of a width direction and a length direction of the bottom portion. The method of claim 4,
The skid comprises:
A skid plate movably provided on the rail;
A turntable rotatably mounted on the skid plate; And
And a driving portion provided at one of the skid plate and the bottom portion to drive the skid plate. The method according to claim 1,
Further comprising a deck crane provided at a bow of a peripheral region of the door frame,
The drill floor can be prevented from interference by the bow space and the deck crane can be used to seat the X-Maastri to the X-maestric skid portion. In the drill ship,
A longitudinal center of gravity of the hull is moved in the direction of the stern portion to provide a bow space portion in the peripheral region of the temple and an X-masstricide portion in which the X-mas tree is seated in the bow space portion Drill ship with. The method of claim 8,
Wherein the bow space portion is provided by moving the drapery and the derrick in the direction of a stern space provided by arranging a remotely operated vehicle (ROV) disposed in a well test region of the hull.

Images