KR200424508Y1 - Main passageway structure in Drilling vessel - Google Patents

Abstract

The present invention utilizes a part of the ballast tank of the hull of a special purpose ship for offshore drilling as the main passageway to realize the linear movement of the worker and to prevent the risk of injury from falling objects when the worker moves. The present invention relates to a main passage structure inside a drilling ship which can actively respond to bad weather conditions on the sea.

The main passage structure inside the drilling vessel of the present invention utilizes ballast tanks 30 and 31 pre-installed in the hull, and is located below the upper deck of the hull, and the web or diaphragm of the ballast tanks 30 and 31 is disposed. A duct structure (110) that removes and forms a space for passing a facility around a passageway including cables and pipes; Located in the lower portion of the duct structure 110, and includes a passage structure 100 having a straight internal passage shape to remove the web or diaphragm of the ballast tank (30, 31) to pass the operator.

Drilling rig, passage, ballast tank, hull, companion passage

Description

Main passageway structure in Drilling vessel

1A is a schematic side view illustrating the characteristics of a drilling vessel according to the prior art.

FIG. 1B is a plan view of the drilling line shown in FIG. 1A.

2 is a side view of a drilling vessel according to one embodiment of the present invention.

3 is an enlarged cross-sectional view taken along line A-A shown in FIG. 2.

           Description of the main parts of the drawing

10: drilling line 11: port web frame

12: starboard web frame 110: duct structure

100: passage structure 101: passage connecting portion

130: accompanying stairs 140: accompanying exit structure

The present invention relates to a main passage structure inside a drilling vessel, and more particularly, to an escape route or an operator movement passage inside a drillship, a floating crude oil production storage facility (FPSO), a crude oil drilling vessel, and a gas drilling vessel. It relates to the main passage structure inside the drilling ship used.

In general, oil companies use large drilling vessels to drill crude oil at sea, with drilling facilities on thousands of tens of thousands of tonnes to meet their business objectives.

The drilling vessel has a hull or double hull structure of a general large ship, a downhole measurement room for the study of seismic survey in the area to be drilled, a computer room, an electric room, a machine room. It has a deck structure with various shapes and functions, including an engine room, a drilling depository laboratory, and a moon pool, which is a space where various drilling equipments enter a sea from a drilling ship.

In general, the deck structure can be divided into the main deck and the module deck, the module deck can be used as a space for the drilling rig placed on top of the main deck.

As shown in FIGS. 1A and 1B, the main passage 5 on the main deck 3 or the module deck 4 in the drilling line 1 according to the prior art has a handrail in the shape of a terrace on the top of the deck. It is formed in a state exposed to the outside.

In particular, since the main deck (3) or the module deck (4) is provided with a variety of plant structures, cranes, drill fixtures, door pools, etc., which are necessary for drilling and have an installation priority so as to be correctly installed in a specific position, It is very difficult to arrange an arrangement of piping duct structures to avoid a structure or a facility having such installation priority.

For example, the door pool 2 is formed to penetrate downward from the center of the drilling line 1 with respect to the lower end of the drill facility, and various structures and facilities to be installed on the main deck 3 or the module deck 4 around it. As a result, the main passage 5 of the prior art is disposed or installed to avoid various structures, and thus, the main passage 5 is meandered in the horizontal direction or the vertical direction, and thus the worker's moving distance is relatively long. .

In addition, since the main passage 5 of the prior art is formed to be exposed to the outside from the upper deck, when the worker moves through the main passage 5 for the upper deck work, falling objects that can occur from various plant structures or facilities, etc. There is a risk of injury.

In addition, as mentioned above, the main passage of the open type of the prior art is exposed to the outside, so that the worker may slip or blow in the wind in bad weather such as rain or cold, and may be injured in work. Together, there is always a risk of safety accidents.

For this reason, some demanding shipowners require additional structures, such as tunnels, on decks 3 and 4 to ensure the safety of the main passageway 5, thus maintaining the Many difficulties and economic losses are occurring in the arrangement of the passage 5, securing space, and installing a separate structure.

Therefore, the present invention has been devised to solve the problems of the prior art as described above, by utilizing a portion of the ballast tank of the hull as a main passageway to realize a linear movement of the worker, if the worker moves falling objects To prevent the risk of injury in advance, and to provide a main passage structure inside the drilling ship that can actively respond to the bad weather environment on the sea.

An object of the present invention as described above, in the main passage structure inside the drilling vessel utilizing a ballast tank pre-installed in the hull, located below the upper deck of the hull, by removing the web or diaphragm of the ballast tank And a duct structure defining a space for passing a facility around a passageway including a pipe; Located in the lower part of the duct structure, it is achieved by the main passage structure inside the drilling vessel, characterized in that it comprises a passage structure having a straight passageway internal shape to pass the worker by removing the web or diaphragm of the ballast tank. .

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

2 is a side view of a drilling line according to an embodiment of the present invention, Figure 3 is an enlarged cross-sectional view taken along the line A-A shown in FIG.

First, as shown in FIG. 2, the main passage structure inside the drilling vessel of the present invention corresponds to a special purpose vessel such as a drillship, floating production storage offloading (FPSO), crude oil drilling vessel, gas drilling vessel, etc. It is applied to the inside of the drilling line 10.

Here, the passage structure 100 corresponding to the main passage structure inside the drilling vessel of the present invention has a linear shape in accordance with the arrangement direction of the ballast tanks already installed by utilizing the ballast tank of the hull already installed in the drilling vessel 10. Will have

As the passage structure 100 using the ballast tank is installed inside the hull, more preferably inside the main deck, drops that may occur from drilling plant structures or other facilities installed on the deck, or bad weather weather wind, snow, It can safely protect the worker from rain, wind, storm, etc., and can be used as a safe evacuation passage or moving passage.

As shown in Figure 2 and 3, the main passage structure inside the drilling vessel of the present invention is basically, the ballast tank 30, which is pre-installed in the hull of the drilling vessel 10, that is, the main deck in a plurality of rows and multiple stages 31) Use some.

Here, the ballast tank (30, 31), the port web frame (11, port web frame) and starboard web frame (12, arranged on the port and starboard relative to the moon pool 20 on the drilling vessel 10, 12, starboard web frame Port ballast tank 30 and starboard ballast tank 31 formed in each of the).

The ballast tanks 30 and 31 are partitioned by a web or bulkhead in a segment form by a predetermined space size.

The ballast tanks 30 and 31 thus partitioned form at least one row in the vertical direction in the port web frame 11 and the starboard web frame 12, and each tank segment is formed in plural in the vertical direction. Are stacked to form a plurality of stages.

In addition, the ballast tanks 30 and 31 have perforated water passages 33, 34, 35, 36 or piping for movement of the inter-tank storage water. The through holes 33, 34, 35, 36 or piping are formed in the up / down, front / back, left / right directions corresponding to the corresponding design positions of the port web frame 11 and the starboard web frame 12, or Is installed.

In addition, the main passage structure inside the drilling vessel of the present invention has a duct structure (110).

The duct structure 110 is located under the upper deck, which means the ship deck of the hull, of the ballast tank (30, 31) described above, the web or diaphragm in the inner space of the ballast tank located close to the upper surface of the main deck As a result, the space is formed to pass the facilities around the passages collectively referred to as electric wires, pipes, electrical equipment lines, piping lines, cables, and duct pipes.

In addition, the main passage structure inside the drilling vessel of the present invention has a passage structure 100 formed to pass a worker by removing the web or diaphragm in the inner space of the ballast tank located under the duct structure 110.

For example, in order to secure a straight passage internal shape in the passage structure 100, a web or diaphragm for the tank divided into segments along the arrangement direction of the existing ballast tanks 30 and 31 is removed corresponding to the passage cross-sectional area. .

In addition, the conventional water passage hole 35 for the ballast tank formed in the bottom surface of the passage structure 100 is sealed with a closing plate of a size corresponding to the hole diameter or relatively large, using a conventional member joint method such as a welding method. do.

In addition, the existing pipe for the ballast tank formed on the bottom surface of the passage structure 100 is separated or dismantled or removed by using a conventional dismantling method is not hindered passage.

In addition, the bottom surface of the passage structure 100 further has a bottom construction material in conformity with the drilling vessel technical specifications, such as a urethane coating material on the top thereof.

In addition, the passage hole 36 formed in the ceiling surface of the passage structure 100 or the bottom surface of the duct structure 110 is also closed and sealed in the same manner as described above, or the light or fire fighting facilities of the passage structure 100. It is utilized as a mounting hole for the back.

In addition, it is preferable that an air conditioner, an electric light, a ventilation hole, an emergency light, an emergency light, an induction light, a gas / smoke detector, a firefighting device, etc. are further installed on the ceiling surface of the passage structure 100 to correspond to the corresponding passage technical specifications of the drilling vessel. .

In addition, the passage structure 100 is further provided with a passage connecting portion 101 which is penetrated to move the operator to the upper surface of the main deck located vertically above or to the internal space of the module deck, or can be opened and closed.

Here, the passage connecting portion 101 is a companion stair 130 associated with the passage structure 100, a companion exit structure 140, a companion door structure, and other companion passages connected through the passage structure 100. It is formed between the passage structure 100 and other space, such as (companion passageway, not shown).

In more detail, the passage connecting portion 101 formed on the inner side of the passage structure 100 connects the interior space of the passage structure 100 to the space structure in which the accompanying stairs 130 are formed.

Here, the accompanying stair 130 is connected to the accompanying exit structure 140, the outlet that can be opened and closed on the outside of the accompanying exit structure 140 is formed.

In addition, a predetermined staircase structure (not shown) may be further formed inside the passage structure 100. In addition, such as exiting to the outside of the main deck through the ceiling of the notification structure 100, any way of exit or connector structure may be further installed in, outside of the passage structure (100).

On the other hand, the duct structure 110 is formed in the upper portion of the passage structure 100, pipes, ducts for various electrical, air conditioning, plumbing installations required for drilling lines and corresponding to the facilities around the passage installed inside and outside the passage structure 100. It is desirable that the pipes, cables and their connecting means (eg connectors, connectors, hubs, switches, etc.) have dimensions and cross-sectional sizes corresponding to the technical installation specifications of the drilling vessel.

Therefore, the present design utilizes a linear ballast tank installed in the drilling vessel, which can be used as a safe passage space separated from the outside of the deck, and has a short moving distance as a straight shape unlike the existing winding, Regardless of the weather outside (about -20 ℃ or rainy weather in bad weather) can be secured as a comfortable passage, there is an advantage that can be secured as a safe passage during the operation of the drilling vessel equipment.

In addition, the main passage structure inside the drilling vessel of the present invention, by using a part of the ballast tank corresponding to the existing structure, without the need to install a separate structure such as a tunnel (tunnel) on the deck, the passage piping and layout problems There is an advantage that can be designed easily.

In addition, the main passage structure inside the drilling vessel of the present invention also utilizes a part of the ballast tank, thereby securing a duct structure for installing facilities such as various cables, pipes, duct pipes on the upper portion of the passage structure, cables, pipes, Layout problems associated with ducts also have the advantage that can be solved at once.

Claims (3)

In the main passage structure inside the drilling ship utilizing the ballast tanks already installed in the hull, A duct structure located below the upper deck of the hull and having a space for removing a web or diaphragm of a ballast tank to pass a facility around a passage including a cable and a pipe; Located in the lower portion of the duct structure, the main passage structure inside the drilling vessel, characterized in that it comprises a passage structure having a straight passageway inner shape to pass the operator by removing the web or diaphragm of the ballast tank. The method of claim 1, A passage connecting portion formed on an inner side of the passage structure and openable; An accompanying staircase disposed between the passage connecting portion and the upper deck; Located at the top of the accompanying stairs, the main passage structure in the drilling vessel further comprises a companion exit structure protruding from the upper deck to allow the operator to pass. The method according to claim 1 or 2, A closing plate for sealing a water passage for a ballast tank formed in a bottom surface of the passage structure; The main passage structure inside the drilling vessel, characterized in that it further comprises a floor construction material installed on top of the bottom surface of the passage structure.

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