KR101607837B1 - Offshore storage facility and oil transper method using the same - Google Patents

Abstract

A marine storage facility and an oil transfer method using the same are disclosed. According to an aspect of the present invention, there is provided a hull comprising: at least one of equipment for collecting, producing, refining or processing oil or gas; At least one detachable tank having a storage space for oil or gas therein, suspended in seawater and formed separately from the hull so as to be mountable and detachable to the hull; A mounting portion for detachably mounting the detachable tank to the hull; And a transfer line for providing a transfer path for oil or gas between the hull and the separable tank.

Description

Technical Field [0001] The present invention relates to an offshore storage facility and an oil transfer method using the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marine storage facility and an oil transfer method using the same, and more particularly, to a marine storage facility for storing oil and the like, and an oil transfer method for transferring stored oil to a destination .

Generally, oil and gas produced at sea are temporarily stored in offshore production facilities and then transported to destination or destination through shuttle tanker. For example, taking FPSO (Floating Production Storage and Offloading) as one of the representative offshore production facilities, the oil collected from the sea is processed and refined through various equipments installed on the hull and stored in a storage tank provided in the ship do. In addition, the oil stored in the storage tank is transported back to the shuttle tanker from the sea, and is transported to the destination or the customer in a state stored in the shuttle tanker.

In particular, when the FPSO and the shuttle tanker are moored in the sea, there is a problem in that the shuttle tanker can not be moved from the FPSO to the shuttle tanker, It is necessary to carry out a difficult and hazardous operation for transferring oil and the like. That is, as described above in connection with the transfer using the shuttle tanker, the shuttle tanker is brought close to the FPSO or the like, and then the transfer pipe for transferring the oil or the like is installed as described in the Japanese Patent Application Laid-Open No. 10-2012-0073487, Oil and the like are transferred to the shuttle tanker, which is a very dangerous operation involving collision of the shuttle tanker depending on the sea condition. In addition, since the shuttle tanker and the FPSO must be continuously maintained while the oil or the like is being transferred to the shuttle tanker, an expensive location maintenance facility is required, and the transfer may not be performed frequently due to marine climatic conditions, etc. .

On the other hand, the marine facilities such as FPSO have a problem that space utilization is limited due to the storage tank installed in the ship. For example, in order to secure a sufficient storage space, it is preferable to install a storage tank having a larger capacity in the ship, but there is a problem that installation space of various facilities for processing oil and the like can be restricted. On the other hand, in order to maximize the processing capability of the oil and the like by increasing the capacity of various facilities, it is desirable to minimize the capacity of the storage tank provided in the ship, but it is inevitably required to stop the operation of the facility due to lack of storage space And the like.

Published Patent Publication No. 10-2012-0073487 (Jul. 05, 2012)

Embodiments of the present invention are to provide a marine storage facility capable of increasing the utilization of space on-board and capable of transporting oil and the like safely and easily, and an oil transfer method using the same.

According to an aspect of the present invention, there is provided a hull comprising: at least one of equipment for collecting, producing, refining or processing oil or gas; At least one detachable tank having a storage space for oil or gas therein, suspended in seawater, and configured to be mounted on and detachable from the hull independently of the hull; A mounting portion for detachably mounting the detachable tank to the hull; And a transfer line for providing an oil or gas transfer path between the hull and the detachable tank.

According to another aspect of the present invention, there is provided a method of manufacturing a hull comprising: performing at least one of picking, producing, refining, or processing oil or gas in a ship-mounted facility; Transferring and storing the oil or gas into a detachable tank installed in the hull; Connecting a tug to the detachable tank; Separating the separable tank from the hull; Moving the detachable tank to a destination via the tug line; And unloading the oil or gas stored in the detachable tank at the destination.

The sea storage facility and the oil transfer method using the same according to the embodiments of the present invention can transfer oil and the like to a plurality of detachable tanks independent of the hull to increase space utilization inside the hull.

In addition, the water storage facility and the oil transfer method using the same according to the embodiments of the present invention separate the detachable tanks storing oil and the like from the hull and transfer the separated tanks through the tugboat, Can be transported.

1 is a schematic view showing a marine storage facility according to an embodiment of the present invention.
2 is a schematic view showing an example of a mounting portion and a transfer line shown in Fig.
3 is a flowchart showing an oil transfer method using the marine storage facility shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It is to be understood, however, that the following examples are provided to facilitate understanding of the present invention, and the scope of the present invention is not limited to the following examples. In addition, the following embodiments are provided to explain the present invention more fully to those skilled in the art. Those skilled in the art will appreciate that those skilled in the art, Will be omitted.

1 is a schematic view showing a marine storage facility according to an embodiment of the present invention.

1 (a) is a schematic plan view of a marine storage facility 100 according to the present embodiment, and FIG. 1 (b) schematically shows a front view of a marine storage facility 100 according to the present embodiment. Please note that it is shown.

Referring to FIG. 1, the marine storage facility 100 according to the present embodiment may include a hull 110.

The hull 110 may be installed at a predetermined position on the sea and may be equipped with various facilities 111 according to its purpose and use. For example, the hull 110 may have at least one of the facilities 111 for collecting, producing, refining or processing oil or gas (hereinafter collectively referred to as "oil, etc."). The hull 110 may be moored at a predetermined position for a predetermined period of time, and oil or the like may be stored for a predetermined period of time during operation.

However, the hull 110 is not limited to a specific type of marine structure, as long as it can store oil or the like for a predetermined period of time in an installation area by mounting the facility 111 as described above. For example, the hull 110 may include floating or fixed structures installed on the sea, and the facility 111 according to the purpose and the purpose may be mounted, and FPSO, FLNG (LNG-FPSO), FSO, FSRU, It can function as an easy terminal, an offshore terminal, and so on.

Meanwhile, the marine storage facility 100 according to the present embodiment may include one or more detachable tanks 120.

The separable tank 120 may have a storage space for storing oil or the like therein. At this time, the detachable tank 120 is independent of the hull 110, and the storage space inside the detachable tank 120 provides a separate independent storage space separate from the onboard storage space of the hull 110 and the like.

In addition, the separable tank 120 may be removably mounted outside the hull 110. For example, the detachable tank 120 may be mounted on the side of the hull 110 through the mounting portion 130, and may be detachable from the side of the hull 110 as needed. The mounting portion 130 is configured to attach and support the separable tank 120 to the side surface of the hull 110 or the like and to separate the separable tank 120 as necessary and will be described in detail with reference to FIG. .

As described above, the separable tank 120 detachable from the hull 110 allows the oil or the like stored in the separable tank 120 to be easily and quickly transported through the movement of the separable tank 120 itself. This will be further described with reference to FIG. 3 to be described later.

In addition, the separable tank 120 can be floated in seawater. Specifically, the detachable tank 120 can be floated in seawater by the buoyancy of the internal storage space, and oil or the like can be floated in seawater even when the storage space is stored. Since the oil or the like generally has a lower specific gravity than the sea water, no special means is required to suspend the separable tank 120 in the seawater in the state where the oil or the like is stored. However, if necessary, And a ballast tank 121 (see FIG. 2).

In addition, though not shown, the separable tank 120 may be provided with a lug for fastening the tow rope R (see FIG. 3). This lug can be used to fasten the towing rope R to the separating tank 120 so that the separating tank 120 can be towed or transported by the towing rope R. [ However, such a lug is not particularly limited to its shape, structure, and position, but may be any other type as long as it can fasten the towing rope R and apply the pre-loading force to the detachable tank 120.

Meanwhile, a plurality of detachable tanks 120 may be provided. For example, a plurality of detachable tanks 120 may be installed along both sides of the hull 110. In this embodiment, four separable tanks 120 are mounted on both sides of the hull 110, Is installed. However, it goes without saying that the number and arrangement of the separable tanks 120 can be variously changed depending on the capacity of the separable tank 120, the size of the hull 110, and the like.

The marine storage facility 100 according to the present embodiment may include a loading unit 130 and a transfer line 140 installed between the hull 110 and the detachable tank 120.

The mounting portion 130 may mount or unmount the detachable tank 120 to the hull 110. That is, the mounting portion 130 allows the detachable tank 120 to be attached to or detached from the hull 110, if necessary, so that the detachable tank 120 can be detached from the hull 110.

The transfer line 140 may provide a transfer path for the oil or the like between the hull 110 and the separable tank 120. That is, the transfer line 140 is provided with a transfer pipe or the like and can transfer oil or the like from the hull 110 to the separable tank 120 or transfer the oil or the like from the separable tank 120 to the hull 110 do.

When the plurality of detachable tanks 120 are provided, the mounting portion 130 and the transfer line 140 may be provided between the detachable tanks 120 and the hull 110. However, if a part of the plurality of separable tanks 120 is provided as one set and the mounting portion 130 and the transfer line 140 are provided between each set of the separable tanks 120 and the hull 110, The plurality of mounting portions 130 and the transfer line 140 can be integrated or integrated.

2 is a schematic view showing an example of a mounting portion and a transfer line shown in Fig.

2 (a) schematically shows a front view in which a mounting portion 130 and a transfer line 140 are installed, and FIG. 2 (b) schematically shows a plan view in which a mounting portion 130 and a transfer line 140 are installed. Please note that it is shown.

Referring to FIG. 2, the mounting part 130 according to the present embodiment may include a guide bar 131, a moving frame 132, and an electromagnet unit 133.

The guide bar 131 may extend in the longitudinal direction and may be disposed on the side of the hull 110 in the vertical direction. The upper and lower ends of the guide bar 131 may be fixedly supported by a fixing bracket 112 provided on the side of the hull 110.

The movable frame 132 is coupled to the guide bar 131 and can be moved up and down along the guide bar 131. For example, the moving frame 132 may have a through hole through which the guide bar 131 is inserted, and the guide bar 131 may be fastened to the guide bar 131 so that the guide bar 131 passes through the guide bar 131, And can be slid upward and downward.

The electromagnet unit 133 may be provided on one side of the moving frame 132 facing the outboard side. Alternatively, the electromagnet unit 133 may be provided on one side of the moving frame 132 facing the separable tank 120. The electromagnet unit 133 is magnetically coupled with one surface of the separable tank 120 to mount the separable tank 120 to the moving frame 132. In other words, the moving frame 132 can be fastened to one side of the detachable tank 120 through the electromagnet unit 133.

The electromagnet unit 133 may be formed in the same manner as a known electromagnet holder or the like, or may be realized through a known electromagnet mechanism or the like, and a detailed description of the internal structure and the like will be omitted.

2 (b), a plurality of guide bars 131, a moving frame 132, and an electromagnet unit 133 may be provided for one detachable tank 120, as shown in FIG. 2 (b) have. In other words, a plurality of mounting portions 130 composed of the guide bar 131, the moving frame 132, and the electromagnet unit 133 may be provided for one detachable tank 120, 130 may be spaced apart from each other between the hull 110 and the separable tank 120 in the fore-and-aft direction (i.e., bow direction). In this embodiment, two mounting portions 130 are provided between the hull 110 and the separable tank 120 so as to be spaced apart in the front-rear direction. The plurality of mounting portions 130 spaced in the forward and backward directions prevent the detachable tank 120 fixedly supported on the side of the hull 110 from rolling (rolling, yawing, etc.) by seawater or the like do.

Meanwhile, the transfer line 140 according to the present embodiment may include a transfer tube 141 and a pump 142.

The transfer pipe 141 may provide a transfer path for oil or the like between the hull 110 and the separable tank 120. One side of the transfer pipe 141 may be connected to the ship 111 or the facility 111 mounted on the hull 110 and the other side of the transfer pipe 141 may be connected to the inlet 122 of the detachable tank 120, .

Further, the conveying pipe 141 may include at least a part of the pipe 141a which can be stretched or shrinked, or a flexible material pipe. This is because the end portion of the transfer pipe 141 connected to the injection port 122 of the separable tank 120 is connected to a part of the expandable pipe 141a ) Is exemplified.

The pump 142 may be provided on one side of the hull 110 to provide a driving force required for transferring oil or the like. For example, the pump 142 may pump oil or the like from the hull 110 or the facility 111 to the separable tank 120, or may pump the oil or the like from the separable tank 120, 110 or the facility 111. In this case,

Meanwhile, as shown in FIG. 2, a ballast tank 113 may be provided on the side of the hull 110 as needed. The ballast tank 113 adjusts the height between the separable tank 120 and the hull 110 through adjustment of the draft of the hull 110 while the separable tank 120 collides against the side of the hull 110 unexpectedly It is possible to combine the function of protecting the inside of the hull 110.

In addition, as shown in FIG. 2, a ballast tank 121 may be provided in the detachable tank 120, if necessary. The ballast tank 121 provided in the separable tank 120 provides buoyancy so that the separable tank 120 can be floated in seawater even when oil or the like is loaded and the ballast tank 121 provided on the lower side of the separable tank 120 .

Although not shown, a plurality of bulkheads may be provided inside the detachable tank 120 as needed. The plurality of partitions may be provided in the longitudinal or transverse direction inside the separable tank 120 to reduce sloshing due to stored oil or the like.

The above-described marine storage facility 100 includes a detachable tank 120 independent of the hull 110 and transfers oil or the like from the hull 110 or the facility 111 inside the vessel to the separable tank 120 Can be stored. The plurality of detachable tanks 120 independent of the hull 110 can provide sufficient storage space for storing oil and the like.

In addition, since only a minimum storage space such as a temporary storage space for transferring oil or the like is secured inside the hull 110, there is an advantage of maximizing space utilization in the ship. That is, a storage tank or the like provided in the conventional hull 110 may be omitted, and it can be utilized variously for other purposes or purposes. For example, the space of the omitted storage tank can be utilized for increasing the capacity of the equipment 111 mounted onboard the ship.

In addition, the oil or the like stored in the detachable tank 120 can be easily and quickly transported through the separation of the detachable tank 120. Such a system would have many advantages in terms of cost and stability in that it does not require the operation of a shuttle tanker for transportation of oil and the like, and does not involve a mooring process between a water storage facility and a shuttle tanker have.

Particularly, the above technical advantages can be more remarkable when the marine storage facility 100 according to the present embodiment is utilized as FPSO or the like.

Hereinafter, referring to the drawings, the oil transfer method using the above-described water storage facility 100 will be described in more detail.

3 is a flowchart showing an oil transfer method using the marine storage facility shown in FIG.

3 (a), oil, etc. is collected, produced, refined or processed in the facility installed in the hull 110, and then oil or the like is transferred from the hull 110 to the separable tank 120 . The hull 110 may be provided with only a minimum storage space for transferring the oil or the like to the separable tank 120 and the storage of the oil or the like may be performed through the separable tank 120. [

When a plurality of separable tanks 120 are provided, the storage of oil and the like may be performed simultaneously in the plurality of separable tanks 120 or may be performed sequentially for each separable tanks 120.

The oil or the like may be continuously transferred to and stored in each of the separable tanks 120 through the facilities mounted on the hull 110. This process is similar to that shown in Figures 3 (b) to 3 (f) Can also be performed during the process.

3 (a) shows an example in which oil or the like is stored in only four detachable tanks 120 among a plurality of detachable tanks 120, and FIG. 3 (a) It is noted that the food tank 120 is color-coded to a gray area.

2, the separable tank 120 in which the oil or the like is stored can be held by the electromagnet unit 133 mounted on the side of the hull 110 or the like, and the guide bar 131 and / And can be moved up and down according to the flow of the seawater through the moving frame 132. Since the separable tank 120 has a structure separated from the hull 110, the separable tank 120 can be freely moved up and down according to the storage capacity of seawater and oil. The hull 110 will not be affected.

3 (b), when the oil or the like is completely stored in some or all of the plurality of separable tanks 120 and the oil or the like needs to be transported, the tug boat T can be separated from the separable tank 120, . In this case, the tug T can be distinguished from the conventional shuttle tanker in that it is not required that the storage ability of the oil or the like is required and that the separable tank 120 can be towed with self-discharge capability.

Referring to FIG. 3 (c), the tug T approaching the separable tank 120 connects the tow rope R to the separable tank 120. The towing rope R may be fastened to one side of the detachable tank 120 through a lug or the like provided in the detachable tank 120. Particularly, the connecting process of the rope R as described above can be easily performed even if the separating tank 120 and the tug boat T are not adjacent to each other. Also, the separating tank 120 or the hull 110 and the tug boat T, It is technically advantageous in comparison with the prior art in that there is no need for interphase or position maintenance. That is, in the conventional system using the shuttle tanker, the shuttle tanker must be brought close to a point at which the transfer pipe and the like can be installed, and the position between the shuttle tanker and the water storage system must be maintained constantly during the transfer of oil and the like. There is a disadvantage in terms of difficulty and stability of the transfer operation as compared with the oil transfer method according to the example.

Referring to FIG. 3 (d), when the detachable tank 120 is connected to the tug T via the towed rope R as described above, the detachable tank 120 is separated from the ship 110. That is, the supply of power to the electromagnet unit 133 is stopped and the separable tank 120 is detachable from the mounting portion 130, and the transfer pipe 141 is also disconnected from the inlet 122 of the detachable tank 120 (See FIG. 2).

When the separable tank 120 is completely separated from the hull 110, the tug T tows the separable tank 120 through the tow rope R and the separable tank 120 is floated in the sea water (T). That is, in the oil transfer method according to the present embodiment, the oil or the like is transferred by transporting the separable tank 120 itself storing the oil or the like through the tug T.

When the separable tank 120 is transported to a destination such as a land or the like by the tug boat T, the oil stored in the separable tank 120 is unloaded to a storage facility disposed at a destination, The transfer of the oil or the like from the facility 100 to the destination is completed.

3 (e), the unloaded detachable tank 120 can be carried to the hull 110 by the tug T again.

3 (f), the transported detachable tank 120 can be reinstalled in the ship 110 and transported and stored again from the ship 110.

Further, the tug T may be connected to another separable tank 120 to repeat the transfer process of the oil or the like described above.

In the case of the present embodiment, a single tug T is used for convenience of explanation. However, it is needless to say that a plurality of tug trains T may be used, A plurality of separable tanks 120 can be transported simultaneously or sequentially.

As described above, in the oil transfer method according to the present embodiment, oil or the like is transferred in units of each of the separable tanks 120 mounted on the hull 110, and the use of the shuttle tanker is not required. Therefore, it is possible to reduce the burden of having to install a large number of expensive shuttle tankers for transporting oil and the like, and it is also possible to omit expensive facilities for maintaining the position between the shuttle tanker and the marine storage facility. In the case of a shuttle tanker, oil can be safely transported even in marine conditions where transport is not possible, and the influence of marine conditions on the transfer of oil and the like can be minimized.

Furthermore, since the mooring and maintenance of the position between the shuttle tanker and the marine storage facility is omitted, the collision accident due to marine conditions can be prevented in the process of transferring the oil, and the oil can be safely transported even in the marine environment . In addition, since it is not necessary to install a transfer pipe between the shuttle tanker and the marine storage facility, marine environmental pollution due to leakage of the transfer pipe can be prevented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, many modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

100: Marine storage facility 110: Hull
120: separable tank 130: mounting part
140: transfer line

Claims (7)

A hull equipped with at least one of equipment for collecting, producing, refining or processing oil or gas;
A detachable tank having a storage space for oil or gas therein, suspended in seawater, formed separately from the hull so as to be mounted on and detachable from the hull, and having a plurality of hulls along both sides of the hull;
A mounting portion for detachably mounting the detachable tank to the hull; And
And a transfer line for providing an oil or gas transfer path between the hull and the separable tank. delete The method according to claim 1,
Wherein the separable tank comprises:
A lug for fastening the towing rope is provided on the outside, and a plurality of bulkheads for preventing ballast tanks and sloshing are provided on the inner side. The method according to claim 1,
Wherein,
And a plurality of electromagnet units provided on the movable frame and magnetically coupled to one surface of the detachable tank, wherein the electromagnet unit comprises: a guide bar disposed on a side surface of the hull; a movable frame coupled to the guide bar and moved up and down along the guide bar; Marine storage facilities. Performing at least one of picking, producing, refining or processing the oil or gas in a facility installed on the hull;
Transporting and storing the oil or gas to any one of a plurality of detachable tanks installed along both sides of the hull;
Connecting a tug to the detachable tank;
Separating the separable tank from the hull;
Moving the detachable tank to a destination via the tug line; And
And unloading the oil or gas stored in the detachable tank at the destination. The method of claim 5,
Wherein the separable tank comprises:
And is installed outside the hull independently of the hull, and is suspended in seawater. The method of claim 5,
Moving the unloaded detachable tank to the hull through the tug line and back on the hull following the unloading step.

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