Production manifold auxiliary device

FIELD: oil and gas industry.

SUBSTANCE: production platform (1) is suggested with potential connection of branch connection coupled to a production manifold (10) in order to ensure connectivity to the production manifold (10) of at least two production connection strips from the respective subsea wellhead equipment. The production platform is made as a retrofitted module capable to be connected to a single inner tube (11) placed in the production manifold (10). The production platform comprises a frame (2), a pipeline (3), at least one connector (4) and rails (9). The frame (2) is made so that it may be placed on a support device (12). The support device (12) passes from the production manifold (10). The pipeline (3) forms a branching ended by a connector (4) and by at least two external tubes (6).

EFFECT: connection of two production strips to the manifold and reduction of boring rig time in the well.

9 cl, 4 dwg

 

The present invention relates to operational bases, executed with the possibility of subsequent extensive connections with the operating manifold to provide connectivity to the operating manifold at least two operating of jumpers from the corresponding underwater wellhead equipment.

Thus, the present invention relates to the preparation for a possible increase in the number of subsea wells to be connected through the fluid to the existing subsea operational manifold, mounted in the base manifold, located on the seabed.

To allow subsequent connections more extensive connections to underwater performance manifold can be used operating base (Production Flow Base, PFB) in accordance with the present invention. Operational base provides the connection of two sets of wellhead equipment (HMT, Xmas Tree) to one of the internal nozzle performance manifold designed for gas and crude oil (GHO, Gas And Heavy Oil). Thus, the operational basis can be considered as an auxiliary device for operating manifold. Operating manifold takoh the type described in the simultaneously filed international patent application entitled "Performance manifold, combined with multiphase pump", owned by the same applicant as the present application.

The main advantage of using the operational base of the present invention in comparison with the "chain" connection of existing wellhead equipment is that operational base can be left on the wellhead fixture unchanged. "Daisy chained" the connection is dependent on the lifting of the existing operational reasons, including operational estuarine valve, and therefore leads to an increase in time spent drilling rig on the well.

The equipment required to connect the new well, the extra mouth armature and the corresponding connecting the jumper. The equipment also includes an electrical connector jumpers and multiphase flow.

Tubing and connectors proposed operational bases provide connection to the manifold of two operational of jumpers. The pipeline has an essentially Y-shaped, and shut-off valves are missing.

In accordance with the present invention proposed the above-mentioned operational base, characterized in that it is made in the form of modernized what about the module, made with the ability to connect to a single inner tube, already placed in service manifold, and includes a frame, a pipeline, at least one connector and guiding means, and the specified frame is made with the possibility of placing on the supporting device, passing from the production manifold, and the pipeline generates branching, terminating in a connector and at least two external connections.

Preferably the support device of the manifold is made in the form of the leveling frame, which together with the mentioned guide means provides the option of connecting the connector with the inner nozzle manifold during installation.

Preferably operational base contains separate leveling means. Such equalizing means may include screw jacks, located on an operational basis and made interoperable with the alignment frame manifold, and a leveling means can provide tilt adjustment.

In a preferred variant of realization of the branching pipe made in the form of Y-shaped pipe.

Preferably the connector is converted to a single inner pipe, and the two outer pipe facing outwards from the former is loitering grounds and provide the opportunity to connect the respective connection jumpers.

Directing means may be in the form of a pipe, ending in a funnel-shaped extension downward to mate with mating ledge.

Directing means may include guide members placed on the body of the connector and configured to mate with the guide posts made on the mounting plate of the inner pipe.

Directing means may also contain guides, providing the possibility of accommodation of connectors of jumpers when connecting with external connections.

As you can see, operational base contains two main nodes:

1) the load-bearing structure and

2) tubing with connectors.

In this decision the necessary multiphase flow meter is left on the connecting crosspiece wells. The electric power jumper and transmits signals jumper directly connect operational borehole connecting a jumper from the manifold, bypassing the operating base. The equipment for the connection of pipes used for operational reasons, just like a standard equipment for pipe joints used for connecting wells to the manifold.

Other objects, features and advantages contain the I in the following description of preferred embodiments of the invention, shown for descriptive purposes in conjunction with the attached drawings, on which:

in Fig.1 shows an isometric front view of the operational basis in accordance with the present invention;

in Fig.2 shows an isometric rear view of the operating basis in accordance with the present invention;

in Fig.3 shows a portion of the manifold, including the supporting device operational base and leveling frame;

in Fig.4 shows an isometric view of an operational base with Fig.1, placed on the leveling frame with Fig.3.

You should first refer to Fig.1 and 2, which generally shows the operational base 1. As indicated previously, the operational base 1 includes a supporting node 2, is installed on the pipe 3 and the connector (connectors) 4. Bearing node 2 operational reasons, in addition, provides protection of the pipeline 3 and the connector 4 from a possible collapse of items.

For a better understanding of the use of performance the base 1 before the detailed description of Fig.1 and 2 provides a brief description of Fig.3 and 4. In Fig.3 shows a partial view of a corner part of the underwater performance of the manifold 10. Essentially, the manifold 10 may have different sizes and design and in this case is considered as a famous specialist is in this field of technology. As shown, the operating manifold 10 includes several internal nozzles 11, pre-installed on it. In this case, the operating manifold 10 further comprises a support device 12, passing from operating manifold 10 and is welded thereto to form a unified frame. This frame forms a support device 12 and acts as a leveling frame when operating the base 1 is placed on it, as shown in Fig.4.

Returning to Fig.1 and 2, the bearing node 2 operational base is a frame made of steel beams 5 with profiles of different sections, mainly I-beams, to provide a rigid and stable structure. Bearing node 2 operational base contains the main frame 2A, based on the alignment frame 12 of the manifold 10.

As indicated earlier, on the host node 2 operational base mounted manifold 3, passing between two respective outer pipe 6 and a single connector 4. It should be noted that the pipe 3 is a Y-shaped pipe, although in the drawings in an explicit form that is not shown. Two tubes passing from the respective outer pipes 6 are combined and lead to the same connector 4. The path of these pipes by support node 2 operational reasons less important is N. However, it should be understood that the connector 4 is addressed to a single internal branch pipe 11 operating manifold 10, and the two outer pipe 6 facing outwards from the operational base 1 and provide the possibility of connecting the respective connecting bars (not shown).

As shown in Fig.2, the connector 4 is located in the housing 4A of the connector that protects the connector 4. Shows the connector 4 is a conventional clip and is well-proven for connecting the protruding ends of the tubes. The clamp 4 is driven by a screw mechanism 4b, controlled from above using a remotely controlled manipulator (ROV, Remotely Operated Vehicle). In addition, it should be noted that near the corners of the body 4A of the connector are positioning holes 4 C. Positioning holes 4C facilitate the operation of combining, if necessary, mating connector 4 with the inner pipe 11 operating manifold 10.

On the host node 2 operational Foundation also installed a leveling means. The alignment means include two Jack-screw 7, separated by some distance. Screw jacks 7 may be controlled independently from each other from the top using a remotely controlled manipulator. Screws screw home the preparations 7 interact with the alignment frame 12 of the manifold 10. The use of screw jacks 7 provides a control tilt only operational base 1.

As indicated previously, the operational base 1 contains guides tools. One type of guide means is a tube 8' with funnel 8, facing down. This funnel 8 is designed to mate with a mating protrusion (not shown) on the manifold 10 to ensure proper position.

Another form of guide means is a rails 9. Operational base 1 contains such guides 9, which provide the possibility of subsequent placement of connectors (not shown) of jumpers during a subsequent connection of the connecting bridge (not shown) with the respective outer pipe 6. The main frame 2A also includes a protruding stoppers 2b, representing the rest of the connectors of jumpers.

Another form of guide means is a guide pin 13 and the guide holes or cylinders 4C. As described above, the operational base 1 includes guide holes 4, which are accommodated in the housing 4A of the connector. The guides 13 are made on the mounting plate 14 of the inner pipe 11. In turn, the mounting plate 14 is attached to operational is in the manifold 10. The guides 13 are designed to mate with the direction with the guide cylinders 4C of the housing 4A of the connector.

Before pairing the operational base 1 should be aligned with respect to the operating manifold 10, more specifically, with respect to the supporting device made in the form of a leveling of the frame 12. This alignment and the use of the guide means provide the combination of the connector 4 and the inner pipe 11 of the manifold during installation of the connector.

Thus, it is obvious that the proposed operational base allows subsequent extensive connection with the operating manifold. It provides connectivity to the operating manifold at least two operating of jumpers, passing from the corresponding wellhead equipment for subsea wells. To make this possible, the operational base is made in the form of modernized module, configured to connect to a single inner tube, already placed in service manifold. In addition, operating the base includes a frame, a pipeline, at least one connector and guide means. The frame is made with the possibility of placing on the supporting device, passing from the bore is overall design performance manifold. The pipeline also generates branching, terminating in a connector and at least two external connections.

The support device 12 operating manifold provides efficient transfer of load from the additional connection of the jumpers on the operational Foundation of the manifold 10. To allow host operating base 1 on any pipe, depending on the need, the supporting device is provided at the branches on all four corners of the operating manifold 10.

The operational Foundation of the manifold is designed to resist vertical loads and other forces not more than two operational bases. Bearing capacity of Foundation provides, if necessary, the installation of production basis at a later stage of the project, when all four branches are in operation. In this case, connecting a jumper in any area can be replaced by an operational basis for connecting two connecting bridges.

The scope of work of this operation includes the following steps in relation to operating manifold and leveling system:

- prepare the base for leveling the frame operating manifold all four branches for installation usage of the frame base;

- made the layout operational base for factory acceptance tests;

- if necessary, conduct additional factory acceptance tests at various stages of manufacture to ensure proper system operation.

Operational basis and equipment for pipe connections are supplied separately, if necessary.

In the described solution, it is assumed that in the case of operational reasons both connections used for connecting jumpers. If connected to a connecting crosspiece, the second connecting pipe required plug high pressure.

1. Operating base (1) made with the possibility of connecting the branched connection to the operating manifold (10) to provide connectivity to the operating manifold (10) at least two operating of jumpers, passing from the corresponding underwater wellhead equipment,
characterized in that it is
made in the form of modernized module, configured to connect to a single internal pipe (11), previously placed in service manifold (10), and
contains a frame (2), pipe (3), at least one will connect the l (4) and guide means (9), and
frame (2) made with the possibility of placement on the supporting device (12), passing from the production manifold (10) and the pipe (3) forms a branching, terminating in a connector (4) and at least two outer nozzles (6).

2. Operational basis under item 1, characterized in that the supporting device (12) manifold made in the form of the leveling frame, which together with the mentioned guide means provides the possibility of combining the connector (4) with the internal pipe (11) of the manifold during installation.

3. Operational basis under item 1, characterized in that it comprises a leveling tool.

4. Operational basis under item 3, characterized in that the alignment means include screw jacks (7), located on the operating basis (1) and is made with impact on the alignment frame (12) of the manifold (10), with the alignment tools provide the ability adjustments tilt.

5. Operational basis under item 1, characterized in that the branching pipe made in the form of Y-shaped pipe.

6. Operational basis under item 1, characterized in that the connector (4) is converted to the specified single internal pipe (11), and two external pipe (6) facing outwards from the operational base 1) and provide the ability to connect the respective connection jumpers.

7. Operational basis under item 1, characterized in that the directing means is made in the form of a pipe (8'), ending with the funnel (8), downward to mate with mating ledge.

8. Operational basis under item 1, characterized in that the directing means include guide elements (4c), placed on the housing (4) of the connector, and the guide pins (13) on the mounting plate (14) for internal pipe (11).

9. Operational basis according to any one of paragraphs.1-8, characterized in that the directing means include guide rails (9), providing the possibility of accommodation of connectors of jumpers when connecting with external pipes (6).



 

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