Method to build, transport and assemble superstructure on support part of marine oil and gas production facility in shallow waters

FIELD: construction.

SUBSTANCE: superstructure is built on a building slip in a dock on a support deck installed on side walls of the dock. A transport barge that has taken the ballast is introduced into the dock under the superstructure, and the superstructure is installed by means of ballast pumping away from the barge on its deck with its subsequent transportation to a marine oil and gas field. A hydraulic engineering pocket is arranged in place of installation of a support part of a marine oil and gas production facility on the marine oil and gas field. Length, width and depth of the latter make it possible to lead the transport barge to the support part, to install the superstructure onto the support part after taking the ballast by the transport barge, and also to move the transport barge away from the marine oil and gas field after pumping of ballast from it.

EFFECT: invention makes it possible to eliminate using additional crane facilities for transportation and assembly of a superstructure of marine oil and gas production facilities onto a transport barge, and possibility to exclude construction of a marine channel for passage of a transport barge to an oil and gas field in shallow waters.

16 dwg

 

The invention relates to the field of offshore oil and gas fields located in the shallow waters.

There is a method of transportation and installation of offshore ice-climbing platform in shallow water, where ice climbing platform is transported to the marine field pontoon-Transporter, is further provided with a tug, having pontoon-Transporter in the space between handling the piles and by pumping ballast from a pontoon-Transporter raise ice climbing platform on moving parts handling piles, after which the pontoon carrier departs from the place of installation-resistant movable platform movable parts handling piles and then the additional platform floating means is delivered to the Maritime field (EN 2309221 C2, IPC EV 17/00 (2006.01), publ. 27.10.2007). The disadvantage of this method is the use for transporting ice climbing platform for more ships in addition to the main Transporter.

Closest to the claimed method is a method of construction, transportation and installation of the upper structure on the supporting parts of the offshore oil and gas structures in shallow water, in which the construction of the upper structure, Proc. of sportabout them with transport barges at sea field install the upper structure on the supporting part of the offshore oil and gas structures, and then deduce the transport barge with marine deposits (US 4784526 And IPC EV 17/00, publ. 15.11.1988). The disadvantage of this method is the inability to provide the necessary precipitation transport barges for installation of the upper structure on the supporting part.

The technical result, which directed the claimed method is the possibility of excluding the use of additional crane facilities to implement transportation and installation of the topside offshore oil and gas installations on the transport barge, and the ability to exclude the construction of expensive marine channel for the passage of the transport barge to the field in shallow water.

The technical result is achieved due to the fact that in the proposed method of construction, transportation and installation of the upper structure on the supporting part of the offshore oil and gas structures in the shallow waters in which the construction of the upper structure, transport it through a transport barge on the marine field, set the upper structure on the support of the offshore oil and gas structures, and then deduce the transport barge with the marine field, according to of the briteney the construction of the superstructure is carried out in the dock on the stocks, mounted on the side walls of the dock supporting the deck, who enter the ballast transport the barge to the dock below the upper structure, and then by pumping from the transport barge ballast on her deck, install the upper structure, remove transport the barge to the dock and transported to the upper structure in offshore oil and gas field, offshore oil and gas field on the place of installation of the base part of the offshore oil and gas facilities perform hydraulic pocket, length, width and depth which allows the supply of the transport barge to support offshore oil and gas structures with the subsequent installation on the support portion of the upper structure after receiving a transport barge ballast and to withdraw with offshore oil and gas fields of the transport barge after pumping out of her ballast.

The essence of the invention is illustrated shown in the application drawings:

Figure 1 - construction of the upper structure on the stocks in the dock, side view;

Figure 2 - construction of the upper structure on the stocks in the dock, view from above;

3 - enter the transport barge to the dock below the upper structure, side view;

4 - enter the transport barge to the dock below the upper structure, top view;

Figure 5 - installation of the topside on the transport barge after acki of her ballast, side view;

6 - installation of the topside on the transport barge after pumping out of her ballast, top view;

7 - conclusion the transport barge to the dock with the subsequent transportation of the topsides to the offshore oil and gas field, side view;

Fig / o transport barge to the dock with the subsequent transportation of the topsides to the offshore oil and gas field, view from above;

Fig.9 - supply transport barges to support offshore oil and gas structures, side view;

Figure 10 - supply transport barges to support offshore oil and gas facilities, top view;

11 - installation of the topside on the support of the offshore oil and gas facilities after receiving a transport barge ballast, side view;

Fig - installation of the topside on the support of the offshore oil and gas facilities after receiving a transport barge ballast, top view;

Fig further sediment transport barges after receiving her ballast, side view;

Fig further sediment transport barges after receiving her ballast, top view;

Fig / o offshore transport barges after pumping out of her ballast, side view;

Fig / o offshore transport barges after pumping out of her ballast, type of light is Hu.

The method includes the construction of the upper structure 1 offshore oil and gas structures 2 in the factory in the dock 3 on the slipway 4 by setting the side walls 5 of the dock 3 the support deck 6, which meets the upper structure 1, the transportation of the upper structure 1 marine field transport barge 7, in which the technological opening 8, with the subsequent installation of the upper structure 1 on the supporting part 9 of the marine oil and gas facilities 2 after receiving a transport barge 7 ballast, and for additional precipitation transport barges at the place of installation of the base part 9 of the marine oil and gas structures 2 and receive ballast transport barge 7 at its maximum draught perform hydraulic pocket 10.

The upper structure 1 offshore oil and gas facilities 2 is assembled in the factory on the support deck 6 in the dock 3 on the slipway 4, and the support deck 6 are mounted on the side walls 5 of the dock 3 (figure 1, figure 2). For transportation of the upper structure 1 in the marine field, dock 3, under the upper structure 1, after taking ballast, enter the transport barge 7 (3) performed in the process opening 8 (Figure 4). After pumping ballast from the transport barge 7 on its deck, install the upper structure 1 (Figure 5, 6) of th is blowing his transportation to the Maritime field (Fig.7). Upon arrival at the Maritime field, the transport barge 7, containing on its upper deck structure 1, is applied to the supporting part 9 so that the supporting part 9 was inside a technological openings 8 barges 7 (Figure 9, Figure 10), then by receiving barge 7 ballast is planting the upper structure 1 on the supporting part 9 offshore oil and gas structures 2 (11, Fig). To increase the depth of the sea at the supporting part 9, as well as for the possibility of receiving additional ballast transport barge 7 and install the upper structure 1 on the supporting part 9 include the implementation in the Maritime field hydraulic pocket 10 (Fig.9 - Fig), length, width and depth which allows the supply of the transport barge 7 reference to part 9 of the marine oil and gas facilities, set on the support part 9 of the upper structure 1 by receiving a transport barge 7 ballast (11, Fig), and withdraw the transport barge with offshore oil and gas fields after pumping from barges 7 ballast (Fig, Fig), after which the pusher 7 is used for a similar cycle.

The claimed method allows the use of industrial methods for the development of offshore oil and gas fields, including:

full completion of construction of the superstructure of the sea is neftegazopromyslovogo facilities in the factory;

- installation of topsides offshore oil and gas structures on the transport barge and transport of the upper structure to the installation site on the supporting part, excluding cranes using the funds;

- ability to install and use on the supporting parts of the offshore oil and gas structures at the initial stage of development of the upper structure with drilling equipment package, then replace it on the top of the structure with mining equipment;

- at the end of the field to remove the top structure and deliver it in a complete set for utilization in the factory, or for further use of the upper structure on purpose;

- the possibility of using hydraulic pocket to increase the draught of transport barges when installing the upper structure on the supporting part of the offshore oil and gas structures and, accordingly, the mass of transported topsides, as well as to eliminate the need for the construction of a sea channel for posting transport barge to the location of the offshore oil and gas fields in shallow water.

The method of construction, transportation and installation of the upper structure on the supporting part of the offshore oil and gas structures in the shallow waters shall perform the construction of the upper structure, transport him with transport barges at sea field, set the upper structure on the support of the offshore oil and gas structures, and then deduce the transport barge with marine deposits, characterized in that the construction of the superstructure is carried out in the dock on the bench, mounted on the side walls of the dock supporting the deck, who enter the ballast transport the barge to the dock below the upper structure, and then by pumping from the transport barge ballast on her deck, install the upper structure, remove transport the barge to the dock and transported to the upper structure in offshore oil and gas field, offshore oil and gas field on the setup the supporting part of the offshore oil and gas facilities perform hydraulic pocket, length, width and depth which allows the supply of the transport barge to support offshore oil and gas structures with the subsequent installation on the support portion of the upper structure after receiving a transport barge ballast and to withdraw from offshore oil and gas fields of the transport barge after pumping out of her ballast.



 

Same patents:

FIELD: construction.

SUBSTANCE: method to install a platform support block provides for support block transportation, its submersion to the sea bottom and installation onto soil. Ballast reservoirs are used during transportation. Ballast reservoirs are inner cavities of structure elements. During installation the first installation unit is ballasted down. The shaft is put into vertical position. Its eyes are brought to the level above sea surface. Spacers are ballasted to ensure hinged connection of their eyes with eyes of the vertical shaft. The ballast is pumped from the support ring pontoons and/or radial spacers and/or vertical shaft. Spacer ends are put in contact with the support ring due to slight surfacing up of the first installation unit. Spacers are rigidly fixed. Assembly pontoons are ballasted. Its lowering to the prepared bottom section is provided.

EFFECT: simplicity of structure installation, possibility of serial construction, high repairability and possibility of re-equipment in the dock.

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8 cl, 6 dwg

FIELD: transport.

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16 cl, 4 dwg

FIELD: construction industry.

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19 cl, 9 dwg

FIELD: mechanics.

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11 cl, 15 dwg

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FIELD: construction.

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6 dwg

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FIELD: oil-and-gas production.

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2 dwg

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FIELD: construction.

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5 cl, 7 dwg

FIELD: machine building.

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23 cl, 3 dwg

FIELD: construction.

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10 cl, 5 dwg

FIELD: construction.

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EFFECT: wider field of application, less damage to biosphere of seas.

2 cl, 1 dwg

FIELD: hydraulic engineering, particularly building bases and foundations, namely bridge piers, in water.

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EFFECT: reduced time of support erection, increased reliability and stability, safety and service life, reduced labor inputs, possibility to erect supports in Arctic basin.

3 cl 1 ex

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