WO2019208553A1

WO2019208553A1 - Utility line for floating production facility and installation method for utility line for floating production facility

Info

Publication number: WO2019208553A1
Application number: PCT/JP2019/017170
Authority: WO
Inventors: 直井上; 友生上田
Original assignee: 三井Ｅ＆Ｓ造船株式会社
Priority date: 2018-04-27
Filing date: 2019-04-23
Publication date: 2019-10-31
Also published as: KR20200138314A; KR102356515B1; JP7147117B2; CN111918818A; JP2019189181A; CN111918818B

Abstract

According to the present invention, main piping 24 of a utility line 20 is formed by connecting, in a ship length direction, multiple combinations of: a first main piping piece 26 that has a prescribed length and a connection part 26A at either end; and a second main piping piece 28 that has a prescribed length and a connection part 28A at either end and branches into branch piping 30 that comprises a connection part 30F at a tip end thereof. It possible to provide a plurality of the branch piping 30 connection parts 30F such that the heights and ship-width-direction positions thereof are the same, regardless of the position in the ship length direction.

Description

Utility line for floating production equipment and its laying method

The present invention relates to a utility line laid in a floating production facility such as a floating production storage and loading facility (FPSO).

For example, in offshore floating structures such as floating production storage and loading equipment (FPSO), various production facilities for modularized oil production are arranged on the upper deck. Production facilities are generally arranged on both sides of a pipe rack laid along the longitudinal direction of the hull near the center of the hull (Patent Document 1). Various utilities (fresh water, compressed air, nitrogen gas, fuel oil, seawater, etc.) are supplied to the production facilities from utility facilities provided on the hull through pipes (lines) laid under the pipe rack. The utility line is connected to the production facility at a preset connection point.

JP 2017-154702 A

In the construction of an offshore floating structure with production equipment, such as FPSO, the hull including utility equipment is often built at a shipyard, and the design of the production equipment is performed in parallel with the hull design and hull construction. . The production equipment is mounted on the hull in a separate integration yard, and is connected to a utility line on the hull side at a preset connection point. However, in many cases, the production equipment is accompanied by a design change, and it is necessary to change the design and arrangement of the utility line on the hull side accordingly.

The object of the present invention is to change the design and arrangement of the hull-side utility line in a simple, rapid and low-cost manner in accordance with the design change of the production facility in the construction of the offshore floating structure equipped with the production facility.

The utility line of an offshore floating structure equipped with the production facility of the present invention has a first piece main pipe having a predetermined length having a connecting portion at both ends, and a branch pipe having a connecting portion at the tip of the branch, and a connecting portion at both ends. A plurality of first piece main pipes and a plurality of second piece main pipes connected to each other in the ship length direction to form a utility line main pipe. Also in the position, at least one connection part with the production equipment of the branch piping whose height and the position of the ship width direction are the same is provided.

The main piping is arranged in multiple rows in the ship width direction, for example, and the length in the width direction of the branch piping is set in multiple rows so that the position in the width direction of the connecting portion with the branch piping production equipment is the same. Depending on. Moreover, the branch position in the longitudinal direction from the 2nd piece main piping of branch piping may differ according to the position of several rows.

The main piping is laid along the center of the hull, for example. The length of the first and second piece main pipes is preferably a multiple of the frame space length of the hull structure. The branch pipe has, for example, a crank shape, branches from the second piece main pipe in a height direction including an oblique direction, and then extends in the horizontal direction and is directed in the height direction at the tip thereof. Further, the branch pipe has, for example, an L shape, branches from the second piece main pipe in a height direction including an oblique direction, and then extends in the horizontal direction.

The branch piping can be divided into a plurality of pieces, for example. At this time, the branch pipe is divided at, for example, a position extending in the height direction from the second piece main pipe. Moreover, the division | segmentation position of branch piping may be provided in the position extended in a horizontal direction, for example. Any one of a flange joint, a sleeve joint, a screw joint, a clamp joint, a bite joint, a butt weld, or the like may be used for connection of the connection portion.

The offshore floating structure provided with the production facility of the present invention is characterized by including the utility line described above.

The utility line laying method of an offshore floating structure with a production facility according to the present invention includes a first piece main pipe having a predetermined length having a connecting portion at both ends, and a branch pipe having a connecting portion at the tip branching and at both ends. Combining a plurality of second piece main pipes with a predetermined length having a connecting portion and connecting them in the direction of the ship to configure the main line of the utility line, the position of the connecting part with the branch pipe production equipment is The height and the ship width direction position are also made the same at the position.

According to the present invention, in the construction of an offshore floating structure equipped with production facilities, the design and arrangement of the hull-side utility line can be changed easily, quickly, and at low cost in accordance with the design changes of the production facilities.

It is a top view which shows arrangement | positioning of the production equipment module mounted in FPSO of this embodiment of this invention. It is a partial cross-sectional view which shows arrangement | positioning of the production equipment and utility line mounted on the hull deck centering on the centerline CL. It is a perspective view which shows the structure of the utility line of this embodiment laid under the pipe rack. It is a perspective view of the 2nd piece main piping from which branch piping length differs. It is a typical cross section of the 2nd piece main piping from which branch piping length differs. It is a top view which shows the relationship between the length of 2nd piece main piping, a branch piping connection part, and a frame position. It is a typical cross section of the 2nd piece main piping of the 1st modification. It is a typical cross section of the 2nd piece main piping of the 2nd modification.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a plan view showing an arrangement of production facility modules mounted on a floating production storage and loading facility (FPSO) according to an embodiment of the present invention, and FIG. 2 shows a hull centering on a center line CL. It is a partial cross-sectional view which shows arrangement | positioning of the production equipment and utility line mounted on a deck.

The floating-type production storage / loading facility (FPSO) 10 of this embodiment includes an oil storage tank (not shown) in the hull 12, and a production facility for producing oil or the like on the upper deck 14 above the oil storage tank. A large number of production equipment modules 16 that are modularized are mounted. The production equipment modules 16 are arranged on the upper deck 14 on both sides of the hull 12 with the center line CL sandwiched between them, and between the production equipment modules 16 with the center line CL sandwiched, pipe racks are provided along the center line CL. 18 is arranged.

Utility equipment (not shown) is provided in the hull 12, and various utilities (fresh water, compressed air, nitrogen gas, fuel oil, seawater, etc.) are supplied to the respective production equipment modules 16 through each pipeline (utility line). Each supplied. The utility line 20 on the hull 12 side is laid on a pipe support 18A provided on the hull 12 side. Note that the lower side of the broken line A shown in FIG. 2 corresponds to the hull 12 side, and is constructed at the shipyard together with utility equipment stored in the hull 12. Further, the upper side of the broken line A corresponds to the production facility, and after the hull 12 is constructed, it is mounted on the upper deck 14 of the hull 12 in, for example, an integration yard.

As shown in FIG. 2, on the hull 12 side, a stool 16A for mounting the production equipment module 16, a utility line 20 on the hull 12 side and a piping support 18A for mounting the utility line 20 are installed at the shipyard. . Thereafter, in the construction of the production facility in the integration yard, each production facility module 16 is mounted on the stool 16A, and the utility line 22 of the production facility that connects each production facility module 16 and the utility line 20 on the hull side is provided on the hull side. Connected to the utility line 20.

FIG. 3 is a perspective view showing the structure of the utility line 20 of the present embodiment laid on the pipe support 18A.

The main piping 24 of each utility line 20 is laid on the piping support 18A along the length of the ship as shown in FIG. The main pipe 24 is connected to each production equipment module 16 through a branch pipe 30 branched from the main pipe 24 and a utility line 22 of the production equipment connected thereto, and various utilities are supplied.

In the present embodiment, the main pipe 24 of the utility line 20 is constituted by connecting two kinds of piece main pipes having a predetermined length as a unit, that is, the first and second piece

main pipes

26 and 28. The first and second piece

main pipes

26 and 28 are each constituted by a pipe having a predetermined length provided with connecting

portions

26A and 28A such as flanges at both ends, and the second piece main pipe 28 is further formed from the middle of the pipe. A branch pipe 30 is provided. Further, a connecting portion 30F such as a flange is provided at the tip of the branch pipe 30. The main pipe 24 is provided by appropriately combining the first piece main pipe 26 and the second piece main pipe 28 in accordance with the design of the production facility and connecting them in the direction of the captain.

In the present embodiment, the branch pipe 30 has a substantially crank shape, and is branched perpendicularly from the side surface of the second piece main pipe 28 main body (branch pipe base 30A), and then perpendicular to the axial direction of the second piece main pipe 28 main body. It is bent in the direction (branch pipe horizontal part 30B), and further bent in the same direction as the direction branched from the main body side surface of the second piece main pipe 28 (branch pipe tip part 30C).

The second piece main pipe 28 is attached to the center frame 180 of the pipe support 18A along the center line CL so that the branch pipe base 30A faces upward. At this time, the branch pipe horizontal portion 30B is disposed horizontally along the width direction of the hull 12, and the branch pipe distal end portion 30C is disposed with the connection portion 30F facing upward. The branch pipe tip 30C side of the branch pipe horizontal part 30B is attached to the side frame 182 of the pipe support 18A so that the level is maintained.

In the present embodiment, the height at which the connecting portion 30F of the branch pipe 30 is disposed and the position in the ship width direction are determined in advance regardless of the ship length direction, and the lengths of the branch pipe base 30A and the branch pipe tip 30C are determined. The length of the branch pipe horizontal portion 30B is determined in advance according to the height and position thereof. That is, as indicated by a broken line in FIG. 3, the position of the connecting portion 30F of the branch pipe 30 in the ship length direction can be changed by moving the position where the second piece main pipe 28 is connected in the ship length direction. It should be noted that the degree of freedom of the position of the coupling point in the length direction can be controlled by the length of the piece main pipe.

That is, according to this embodiment, in the design and construction of the production equipment, the connection position of the utility line 22 of the production equipment may be designed and constructed according to the preset height and the position in the ship width direction. On the other hand, on the hull 12 side, if there is a design change in the production facility, the arrangement of a part of the first and second piece

main pipes

26 and 28 is simply changed in accordance with the production facility that has changed. Can respond.

4 and 5 are diagrams illustrating the configuration of the second piece main pipe 28 when a plurality of main pipes 24 are arranged in the ship width direction. FIG. 4 is a perspective view of each second piece main pipe 28, and FIG. 5 is a schematic cross-sectional view.

Usually, since various types of utilities are supplied to each production equipment module 16, a plurality of main pipes 24 corresponding to a plurality of utilities are arranged in the ship width direction on the pipe support 18A. Laid along. Therefore, the distance to the position in the ship width direction of the connecting portion 30F set in advance differs depending on the position of the main pipe 24 in the ship width direction. Therefore, in the present embodiment, a plurality of second piece main pipes 28 having different lengths of the branch pipe horizontal part 30B are prepared in advance according to the distance from the connection part 30F where the main pipe 24 is disposed.

Further, when the branch pipe 30 branches at the same position in the plurality of second piece main pipes 28 arranged in parallel, the branch pipe horizontal part 30B and the branch pipe tip part 30C (connecting part 30F) cannot be engaged. Therefore, in this embodiment, in the 2nd piece main piping 28 from which the length of the branch piping horizontal part 30B differs, the branching position of the branch piping 30 in the longitudinal direction is varied, and the problem of the connection between the pipes in parallel Is prevented.

FIG. 4 shows an example in which three second piece main pipes 28 are juxtaposed, and the second piece main pipe 280 from the second piece main pipe 28 on the side close to the position of the preset connection portion 30F, The branch pipe horizontal parts 30B are shown as branch pipe

horizontal parts

300, 301, 302. 5A is a schematic cross-sectional view at the position of the branch pipe horizontal portion 300 in FIG. 4, FIG. 5B is a schematic cross-sectional view at the position of the branch pipe horizontal portion 301, and FIG. c) corresponds to a schematic cross-sectional view at the position of the branch pipe horizontal portion 302.

In the present embodiment, as shown in the plan view of FIG. 6, the length L of the first and second piece

main pipes

26 and 28 is a multiple of the frame space length T of the hull structure, and the connecting portion 26A. , 28A can be provided in accordance with the frame FR. As a result, even if the joining point is not on the frame, according to the same configuration, the joining point can be changed at the same pitch as the frame space. it can. In addition, it is easy to communicate between the production equipment side and the hull side.

As described above, according to the present embodiment, even if a design change of the production facility occurs in the FPSO construction process, the design and arrangement of the hull side utility line can be changed easily, quickly, and at low cost. Can be done.

Next, first and second modifications of the present embodiment will be described with reference to FIGS. In the present embodiment, the branch pipe 30 is provided integrally with the second piece main pipe 28. However, in the first and second modifications, the branch pipe can be divided into a plurality of pieces. The branch pipe 32 of the first modified example in FIG. 7 can be separated into two pieces at the branch pipe base 32A. Both pieces can be connected via a connecting portion 32F using a flange or the like. According to this configuration, in addition to the effects of the embodiment, it is possible to leave the branch pipe piece ahead of the connection portion 32F until the final stage of the construction, and it can be easily handled by changing the coupling point.

Further, the branch pipe 34 of the second modified example of FIG. 8 can be divided into three pieces in the branch pipe horizontal portion 34B. That is, the branch pipe horizontal part 34B has a connecting part 34F, a part integrated only with the branch pipe base 34A, a part integrated with the branch pipe tip 34C, and a horizontal part 34D located between them. Separated by 34G. According to the configuration, in addition to the effect of the first modification, even when the main pipes are arranged in a plurality of rows, the adjustment in the ship width direction can be performed only by adjusting the length of the horizontal portion 34D of the branch pipe 34. Yes, other parts can be shared.

In addition, in this embodiment and the modification, the flange joint was mentioned as an example of a connection part, However, The connection method of a connection part is not limited to this, For example, a sleeve joint, a screwed joint, a clamp joint, a bite joint It may be butt welding or the like. In the present embodiment, the branch pipe has a crank shape. However, the branch pipe may have a shape other than the crank shape, for example, an L shape. In this case, the branch pipe branches from the second piece main pipe in the height direction and then extends in the horizontal direction. Further, in the present embodiment, the utility line is laid in the center of the hull in the width direction of the ship, but it may be laid along the longitudinal direction at a position shifted from the center line, and laid in a plurality of lines. It may be. In the present embodiment, the case where the heights and the positions in the width direction of the branch pipes are all the same in any position in the ship length direction has been described as an example. A part of the connecting portion having the position in the ship width direction may exist. In this modification, the two

connection portions

34F and 34G are provided in the horizontal portion 34D, but one or both may be provided in the branch pipe base portion 34A and the branch pipe tip portion 34C, respectively.

The branch pipe of the present embodiment branched from the second piece main pipe upward in the hull and then extended in the width of the hull. However, the branch pipe does not branch right above but in the range of 0 ° to 45 ° in the width direction. You may branch diagonally. In addition, the shape of the branch pipe connecting the branch position from the second piece main pipe and the connection portion is not limited to this embodiment or the modification, and the connection portion with the production equipment of the branch pipe is in the ship's direction. It is sufficient that the height and the position in the ship width direction can be made the same at any of these positions.

10 Floating production storage and shipping equipment (FPSO)
12 Hull 14 Upper deck 16 Production equipment module 16A Stool 18 Pipe rack 18A Piping support 20 Utility line 22 Production equipment utility line 24 Main piping 26 First piece main piping 26A Connection portion 28 Second piece main piping 28A Connection portion 30 Branch piping 30F connection

Claims

A first piece main pipe having a predetermined length having connecting portions at both ends;
A branch pipe having a connecting portion at its tip branches and a second piece main pipe having a predetermined length having a connecting portion at both ends,
A utility line main pipe is constructed by connecting a plurality of the first piece main pipe and the second piece main pipe in the captain direction,
An offshore floating structure having a production facility, wherein at least one connection portion with the production facility for the branch pipe having the same height and a position in the width direction of the ship is provided at any position in the ship length direction. Utility line of things.
The main pipes are arranged in a plurality of rows in the ship width direction, and the plurality of rows are arranged so that the ship width direction length of the branch pipes is the same in the ship width direction position of the connection portion with the production equipment of the branch pipes. The utility line according to claim 1, wherein the utility line varies depending on the position of the utility line.
The main piping is arranged in a plurality of rows in the ship width direction, and a branch position of the branch piping in the longitudinal direction from the second piece main piping is different depending on the position of the plurality of rows. Or the utility line of Claim 2.
The utility line according to any one of claims 1 to 3, wherein the main pipe is laid along the center of the hull.
The utility line according to any one of claims 1 to 4, wherein the length of the first and second piece main pipes is a multiple of the frame space length of the hull structure.
2. The branch pipe has a crank shape, branches from the second piece main pipe in a height direction, and then extends in a horizontal direction and is directed in a height direction at a tip thereof. The utility line according to any one of 1 to 5.
6. The branch pipe according to claim 1, wherein the branch pipe has an L shape, branches in a height direction from the second piece main pipe, and then extends in a horizontal direction. Utility line.
The utility line according to claim 6 or 7, wherein the branch pipe can be divided into a plurality of pieces.
The utility line according to claim 8, wherein a division position of the branch pipe is provided at a position extending in a height direction from the second piece main pipe.
The utility line according to claim 8 or 9, wherein a division position of the branch pipe is provided at a position extending in the horizontal direction.
The flange joint, sleeve joint, screw joint, clamp joint, bite joint, or butt weld is used for connection of the connection portion. Utility line.
An offshore floating structure equipped with a production facility comprising the utility line according to any one of claims 1 to 11.
Combining a plurality of first piece main pipes having a predetermined length having connecting portions at both ends and a second piece main pipe having a predetermined length having a connecting portion at both ends while branching pipes having connecting portions at the ends thereof are branched. Connect in the direction of the captain to configure the main piping of the utility line,
A utility line laying method for an offshore floating structure equipped with production equipment, characterized in that the position of the connecting portion of the branch pipe is the same in height and ship width direction position at any position in the ship length direction.