CN216839351U - Four-leg medium-sized wellhead B-type platform module suitable for standardization in Bohai sea area - Google Patents

Abstract

The utility model discloses a standardized middle-sized well head B type platform chunk in four legs suitable for Bohai sea waters, include: the frame structure comprises four main pipes, a plurality of horizontal steel beams and a plurality of planks, wherein the main pipes are matched with the horizontal steel beams to sequentially construct the frame structure into a first vertical face, a second vertical face, a third vertical face, a fourth vertical face and a fifth vertical face along the extending direction of the height of the frame structure from bottom to top, the main pipes are matched with the horizontal steel beams and the planks to sequentially construct the frame structure into a first horizontal layer, a second horizontal layer, a third horizontal layer and a fourth horizontal layer, a notch is formed in the first horizontal layer, a wellhead area is arranged on the frame structure, and the wellhead area penetrates through the frame structure in the vertical direction and is arranged opposite to the notch. The utility model discloses a medium-sized well head B type platform chunk of four legs possesses standard structural style, can realize that component structure spare and node mass build, effectively reduces the human input, shortens the project cycle, reduces the engineering investment cost comprehensively.

Description

Four-leg medium-sized wellhead B-type platform module suitable for standardization in Bohai sea area

Technical Field

The utility model relates to an offshore oil engineering technical field particularly, in particular to middle-sized well head B type platform chunk in four legs suitable for standardization in Bohai sea area.

Background

At present, the Bohai sea oil field has development experience for more than 50 years, a module design technology system is complete, the technology is mature, however, each item is developed, all links such as design, collection, construction and installation need to be completed in sequence, common and regular experience is not extracted from the mature technology for solidification, the applicability of the modules in the Bohai sea area is not increased in serialization and standardization, repeated work in each link is reduced, the project period is shortened, the module engineering construction efficiency is improved, and the purposes of cost reduction and efficiency improvement are achieved.

In the design link, the conventional chunks are usually designed according to the environmental conditions, oil reservoirs, process flows, overall arrangement, heavy control and the like of a platform site, and the oil reservoirs, the environmental conditions, specific process flows, overall arrangement and heavy control in different regions of the Bohai sea are different, so that chunks of different projects are different in structure form, leg diameter, rod arrangement and rod specification, and the environmental adaptability is poor. Each newly-built block needs to be redesigned according to different conditions, so that a large amount of repeated investment in design work is caused, and the design efficiency is low. Meanwhile, links such as mining, construction and installation need to be considered again after design results are submitted, so that the links have high labor consumption and long engineering construction period, are not beneficial to the rapid promotion of projects, and cannot realize cost reduction and efficiency improvement fundamentally.

In the aspect of applicability of the chunk to the Bohai sea area, due to the complex Bohai sea environment conditions, oil reservoir differences, differences of environment conditions of design control working conditions of all areas and differences of process flows, overall arrangement and re-control, the conventional chunk is not applicable to all preconditions through technical means and arrangement of a main structural member, and the requirement of standardization of the chunk in the whole Bohai sea area cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. In view of this, the utility model discloses need provide one kind and possess standardized structural style, can realize chunk structure spare and node mass construction, effectively reduce the human input, shorten the project cycle, the middle-sized well head B type platform chunk in four legs that is applicable to that the engineering investment cost is comprehensively reduced Bohai sea area is standardized.

The utility model provides a medium-sized well head B type platform chunk in four legs suitable for standardization in Bohai sea area, include: the frame structure comprises four main pipes, a plurality of horizontal steel beams and a plurality of planks, wherein the main pipes are arranged in a matrix and vertically arranged from left to right along the extension direction of the length of the frame, the frame structure is sequentially constructed into a first vertical face, a second vertical face, a third vertical face, a fourth vertical face and a fifth vertical face by matching with the plurality of horizontal steel beams, two straight pipes are arranged on one side edge of the frame structure, one straight pipe is positioned in the second vertical face, and the other straight pipe is positioned in the fourth vertical face; follow from bottom to top the high extending direction of frame construction, the cooperation horizontal girder steel with the bed plate will frame construction constitutes into first horizon, second horizon, third horizon and fourth horizon in proper order, be equipped with the breach on the first horizon, wherein be equipped with on the frame construction and be located the third facade with wellhead area between the fourth facade, the wellhead area link up along the vertical direction frame construction and with the breach sets up relatively.

According to an embodiment of the present invention, each of the straight pipes is provided with two fifth diagonal braces, one of the fifth diagonal braces is located between the fourth horizontal layer and the third horizontal layer, and both ends of the fifth diagonal brace are respectively connected to the straight pipe and the main pipe, and the other of the fifth diagonal braces is located between the first horizontal layer and the third horizontal layer, and both ends of the fifth diagonal brace are respectively connected to the bottom end of the straight pipe and the main pipe; the straight pipe in the second vertical surface penetrates out of the fourth horizontal layer for a preset distance.

According to the utility model discloses an embodiment, first facade second facade third facade fourth facade with all be equipped with the second diagonal brace that is the type of falling V in the fifth facade, wherein first facade third facade with all be equipped with first diagonal brace on the fifth facade.

According to the utility model discloses an embodiment, first oblique reinforcement both ends are connected respectively the fourth horizontal layer with the third horizontal layer, the second oblique reinforcement both ends are connected respectively the second horizontal layer with the fourth horizontal layer.

According to the utility model discloses an embodiment, every be connected with the third diagonal lacing wire that is V type structure on being responsible for, the both ends of third diagonal lacing wire respectively with the second horizontal layer with the fourth horizontal layer is connected.

According to the utility model discloses an embodiment, fourth horizontal layer with be equipped with first secondary horizontal layer between the third horizontal layer.

According to the utility model discloses an embodiment, the one end on fourth horizontal layer surpasss first facade predetermined distance forms the linkage segment, the linkage segment with be equipped with a plurality of fourth diagonal draw bars between the third horizontal layer.

According to the utility model discloses an embodiment, be equipped with in the fourth horizontal layer in order buckle and a plurality of deep floor that connect gradually, wherein two deep floor's tip all with the straight tube is connected.

According to the utility model discloses an embodiment, the fourth horizontal layer with between the third horizontal layer the height difference between the third horizontal layer with between the second horizontal layer with between the first horizontal layer the height difference is 8000mm, 5500mm and 4500mm respectively.

The utility model discloses a well head B type platform chunk in four legs suitable for it is standardized to Bohai hai sea area, be responsible for through four, a plurality of horizontal steel roof beams and polylith bed board constitute frame construction, supplementary two straight tubes, and be provided with wellhead area on frame construction, the cooperation is all kinds of oblique draw bars of design between different facade and level difference, through configuration optimization and standardized design, construct the platform chunk that is applicable to Bohai sea area jointly, scheme design link in earlier stage has been saved, reduce basic design stage platform totality and arrange, can realize chunk structure spare and node mass construction, can effectively reduce the human input, simplify chunk engineering construction flow, shorten the project cycle, reduce investment cost.

Drawings

Fig. 1 is a perspective view of a standardized four-leg middle-sized wellhead B-type platform module suitable for the bohai sea area according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a fourth horizontal layer of a four-leg medium wellhead B-type platform module suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a first secondary horizontal layer of a four-leg medium wellhead B-type platform module suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a third horizontal layer of a four-leg medium wellhead B-type platform module suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a second horizontal layer of a four-leg medium wellhead B-type platform module suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a first horizontal layer of a four-leg medium wellhead B-type platform block suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a front side surface of a four-leg medium wellhead B-type platform block suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 8 is a schematic diagram of a rear side of a four-leg medium wellhead B-type platform block suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 9 is a schematic diagram of a second vertical surface of a four-leg medium-sized wellhead B-type platform block suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 10 is a schematic diagram of a fourth vertical surface of a four-leg medium wellhead B-type platform block suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 11 is a schematic diagram of a first vertical surface of a four-leg medium wellhead B-type platform block suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 12 is a schematic diagram of a third vertical surface of a four-leg medium wellhead B-type platform block suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Fig. 13 is a schematic diagram of a fifth vertical surface of a four-leg medium wellhead B-type platform block suitable for standardization in the bohai sea area according to an embodiment of the present invention.

Reference numerals: 1-main tube; 2-horizontal steel beams; 3, paving a board; 4-wellhead area; 5-straight pipe; 6-a second diagonal brace; 7-a first diagonal brace; 8-a third diagonal lacing wire; 9-a fourth diagonal brace; 10-a first facade; 11-upright post; 20-a second facade; 30-third facade; 40-fourth facade; 50-fifth vertical face; 51-fifth diagonal brace; 52-a connection end; 100-a first horizontal layer; 200-a second horizontal layer; 300-a third horizontal layer; 301-a stiffener; 400-a fourth horizontal layer; 401-a connecting segment; 402-reinforcing rib plates; 500-first sublevel layer.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 13, according to an embodiment of the present invention, a middle-sized four-leg wellhead B-type platform module suitable for standardization in the bohai sea area includes: the frame structure comprises four main pipes 1, a plurality of horizontal steel beams 2 and a plurality of planks 3. Wherein, the biggest diameter of main pipe 1 is 1829mm, and the reducing is 1524mm, and the biggest specification of horizontal girder steel is H1500mmX500 mm. The main pipe 1 is arranged in a matrix and vertically arranged along the extending direction of the length of the frame from left to right, the frame structure is sequentially constructed into a first vertical face 10, a second vertical face 20, a third vertical face 30, a fourth vertical face 40 and a fifth vertical face 50 by matching with a plurality of horizontal steel beams 2, one side edge of the frame structure is provided with two straight pipes 5, one straight pipe 5 is positioned in the second vertical face 20, and the other straight pipe 5 is positioned in the fourth vertical face 40; along the high extending direction of the frame structure from bottom to top, the main pipe 1 cooperates with the horizontal steel and the floor plate 3 to sequentially form the frame structure into a first horizontal layer 100, a second horizontal layer 200, a third horizontal layer 300 and a fourth horizontal layer 400, the first horizontal layer 100 is provided with a notch 101, the frame structure is provided with a wellhead area 4 positioned between a third vertical surface 30 and a fourth vertical surface 40, and the wellhead area 4 penetrates through the frame structure along the vertical direction and is arranged opposite to the notch 101. Two adjacent horizontal layers up and down among the first horizontal layer 100, the second horizontal layer 200, the third horizontal layer 300 and the fourth horizontal layer 400 are connected through a plurality of vertical columns 11.

The utility model discloses a well head B type platform chunk in four legs suitable for it is standardized in Bohai hai sea territory, be responsible for 1 through four, a plurality of horizontal steel roof beams 2 and polylith bed plate 3 constitute frame construction, supplementary two straight tubes 5, and be provided with wellhead area 4 on frame construction, all kinds of oblique muscle that the cooperation designed between different facades and level difference, through configuration optimization and standardized design, construct the platform chunk that is applicable to Bohai sea territory jointly, scheme design link in earlier stage has been saved, reduce basic design stage platform totality and arrange, can realize structure chunk and node mass construction, can effectively reduce the human input, simplify chunk engineering construction flow, shorten the project cycle, reduce investment cost.

As shown in fig. 1 to 4, 9 and 10, each straight pipe 5 is provided with two fifth diagonal braces 51, one of the fifth diagonal braces 51 is located between the fourth horizontal layer 400 and the third horizontal layer 300, and two ends of the fifth diagonal brace 51 are respectively connected with the straight pipe 5 and the main pipe 1. The other fifth diagonal brace 51 is located between the first horizontal layer 100 and the third horizontal layer 300, and two ends of the fifth diagonal brace 51 are respectively connected with the bottom end of the straight pipe 5 and the main pipe 1. Wherein the straight pipe 5 in the second facade 20 is passed up a predetermined distance out of the fourth horizontal layer 400 and forms a connection end 52, which connection end 52 can be used for connection of the production plant.

As shown in fig. 9 to 13, the first vertical surface 10, the second vertical surface 20, the third vertical surface 30, the fourth vertical surface 40, and the fifth vertical surface 50 are provided with the second diagonal cage 6 having an inverted V shape. The two ends of the second diagonal brace 6 are respectively connected with the second horizontal layer 200 and the fourth horizontal layer 400 so as to increase the connecting structure strength and the supporting load strength of each vertical surface of the first vertical surface 10, the second vertical surface 20, the third vertical surface 30, the fourth vertical surface 40 and the fifth vertical surface 50, and the production equipment is convenient to arrange. Wherein all be equipped with first diagonal brace 7 on first facade 10, third facade 30 and the fifth facade 50, wherein, fourth horizontal layer 400 and third horizontal layer 300 are connected respectively to first diagonal brace 7 both ends to increase the bearing structure intensity towards straight tube 5 one side in first facade 10, third facade 30 and the fifth facade 50, conveniently lay production facility.

As shown in fig. 7 and 8, each main pipe 1 is connected with a third diagonal tie 8 having a V-shaped structure, and both ends of the third diagonal tie 8 are respectively connected with the second horizontal layer 200 and the fourth horizontal layer 400, so as to increase the connecting structural strength of the frame structure in the length extending direction thereof.

As shown in fig. 1, 3, 8, 9, 11, and 12, a first sub-level 500 is disposed between the fourth level 400 and the third level 300. The first horizontal layer 100, the second horizontal layer 200, the third horizontal layer 300, the fourth horizontal layer 400 and the first sub-horizontal layer 500 may be used to place production facilities or control rooms such as a central control room, a transformer room, a control room, an FM200 room (gas fire extinguishing system), a battery room, etc., and to configure production system equipment such as crude oil, water injection, etc.

As shown in fig. 1, 2 and 7, one end of the fourth horizontal layer 400 exceeds the first vertical surface 10 by a predetermined distance and forms a connecting section 401, a plurality of fourth diagonal braces 9 are arranged between the connecting section 401 and the third horizontal layer 300, and two ends of the fourth diagonal braces 9 are respectively connected with the outer edge of the connecting section 401 and the outer edge of the third horizontal layer 300 to increase the strength of the supporting structure of the connecting section 401.

As shown in fig. 2, a plurality of reinforcing rib plates 402 which are sequentially bent and connected are arranged in the fourth horizontal layer 400, wherein the end portions of two reinforcing rib plates 402 are connected with the straight pipe 5, so as to effectively increase the supporting load capacity of the top surface of the fourth horizontal layer 400. Two reinforcing rods 301 are connected to the straight pipes 5 in the third horizontal layer 300 and in the second vertical surface 20, and the two reinforcing rods 301 are arranged at a preset angle, so that the supporting load strength around the straight pipes 5 in the third horizontal layer 300 and on the second vertical surface 20 is effectively increased, and the arrangement of production equipment with relatively heavy mass is facilitated.

As shown in fig. 1, the height difference between the fourth horizontal level 400 and the third horizontal level 300, the height difference between the third horizontal level 300 and the second horizontal level 200, and the height difference between the second horizontal level 200 and the first horizontal level 100 are 8000mm, 5500mm, and 4500mm, respectively, so that a production facility, a control operation room, a living building, or the like is disposed between the respective horizontal levels.

It should be noted that, in this embodiment, the inter-axis dimension of the platform block working point is 20000mmX18000mm, and the platform block is installed at sea in an integral hoisting manner. After the installation is finished, the total area of decks in each horizontal layer on the platform assembly is 3500 square meters, the operating weight of the platform block is about 6500 tons, the surface load and the load are not more than 8800 tons, and the number of the well slots is not more than 20, wherein the well slots are four-corner well slots, single-cylinder double wells can be arranged, and the maximum number of development wells can be 13 (the number of oil wells and water injection wells is 3: 1). A plurality of functional rooms can be arranged in each horizontal layer on the platform block so as to meet the arrangement requirements of power instruments and safety equipment required by production of various kinds of sea oil, such as a central control room, a transformer room, a control room, an FM200 room (gas fire extinguishing system), a battery room and the like. Meanwhile, production systems such as crude oil, water injection and the like can be arranged on the platform block. The method achieves standardized configuration and is suitable for oil field development engineering in the Bohai sea area.

In this embodiment, the main pipe 1, the horizontal steel beam 2, the plank 3, and the nodes formed among the diagonal braces in the platform block need to be subjected to on-site analysis and construction analysis, so that the pipe fittings and the node strength in the structure meet the specification requirements. The in-situ analysis comprises static force, earthquake and fatigue analysis, and the construction analysis comprises ship loading, towing and hoisting analysis. And the structure radial strength level and the toughness level of the platform block are checked, the toughness of a strong earthquake region is analyzed, the structural response analysis is used, the checking is carried out according to a time curve, and the plasticity capability of the structure is fully considered, so that the platform block has certain economical efficiency under the condition of adapting to the environment of the whole Bohai sea. Through standardizing each facade structure and each horizontal layer structure of the platform block, the requirements of different water depths and different environmental conditions (wind, wave, flow, earthquake, ice and the like) of the Bohai sea are met, and meanwhile, the platform block can be matched with a standardized jacket for use, so that the economic, safety and compliance requirements are met. Compared with the conventional design scheme, the method has the advantages that the method has strong applicability in the Bohai sea area through structural optimization configuration and standardized design, saves an early scheme design link, reduces the overall platform arrangement in a basic design stage, shortens the time of links such as main structure modeling, calculation, drawing, checking and the like, shortens the design period, and is suitable for selection, approval and economic evaluation of a project early development stage scheme. Meanwhile, the series of blocks have standardized structural forms, rod piece specifications and node forms, are the basis for standardization of all links such as mining, construction and installation, can realize batch construction of block structural members and nodes, can effectively reduce the manpower input of all links, shorten the project period and reduce the investment cost.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (8)

1. The utility model provides a medium-sized well head B type platform chunk in four legs suitable for Bohai sea area is standardized which characterized in that includes: the frame structure comprises four main pipes, a plurality of horizontal steel beams and a plurality of planks, wherein the main pipes are arranged in a matrix and vertically arranged from left to right along the extension direction of the length of the frame, the frame structure is sequentially constructed into a first vertical face, a second vertical face, a third vertical face, a fourth vertical face and a fifth vertical face by matching with the plurality of horizontal steel beams, two straight pipes are arranged on one side edge of the frame structure, one straight pipe is positioned in the second vertical face, and the other straight pipe is positioned in the fourth vertical face; the frame structure is sequentially formed into a first horizontal layer, a second horizontal layer, a third horizontal layer and a fourth horizontal layer by matching with the horizontal steel beams and the planks along the height extension direction of the frame structure from bottom to top, a notch is formed in the first horizontal layer, a wellhead area located between the third vertical surface and the fourth vertical surface is formed in the frame structure, and the wellhead area penetrates through the frame structure along the vertical direction and is opposite to the notch;

wherein a first secondary horizontal layer is arranged between the fourth horizontal layer and the third horizontal layer;

the total area of the deck in the first horizontal layer, the second horizontal layer, the third horizontal layer, the fourth horizontal layer and the first secondary horizontal layer is 3500 square meters, and the total surface pressure load weight of each horizontal layer is not more than 8800 tons.

2. The standardized four-leg medium wellhead B-type platform block suitable for the Bohai sea area according to claim 1, wherein each straight pipe is provided with two fifth diagonal braces, one of the fifth diagonal braces is located between the fourth horizontal layer and the third horizontal layer, two ends of the fifth diagonal brace are respectively connected with the straight pipe and the main pipe, the other fifth diagonal brace is located between the first horizontal layer and the third horizontal layer, and two ends of the fifth diagonal brace are respectively connected with the bottom end of the straight pipe and the main pipe; the straight pipe in the second vertical surface penetrates out of the fourth horizontal layer for a preset distance.

3. The standardized four-leg medium-sized wellhead type-B platform block suitable for the Bohai sea area according to claim 1, wherein the first vertical surface, the second vertical surface, the third vertical surface, the fourth vertical surface and the fifth vertical surface are respectively provided with an inverted-V-shaped second diagonal brace, and the first vertical surface, the third vertical surface and the fifth vertical surface are respectively provided with a first diagonal brace.

4. The standardized four-leg medium wellhead B-type platform block suitable for the Bohai sea area according to claim 3, wherein two ends of the first diagonal brace are respectively connected with the fourth horizontal layer and the third horizontal layer, and two ends of the second diagonal brace are respectively connected with the second horizontal layer and the fourth horizontal layer.

5. The standardized four-leg medium wellhead B-type platform block suitable for the Bohai sea area according to claim 1, wherein each main pipe is connected with a third diagonal tie bar in a V-shaped structure, and two ends of the third diagonal tie bar are respectively connected with the second horizontal layer and the fourth horizontal layer.

6. The standardized four-leg medium-sized wellhead B-type platform block suitable for the Bohai sea area according to claim 1, wherein one end of the fourth horizontal layer exceeds the first vertical surface by a preset distance to form a connecting section, and a plurality of fourth diagonal braces are arranged between the connecting section and the third horizontal layer.

7. The standardized four-leg medium-sized wellhead B-type platform block suitable for the Bohai sea area according to claim 1, wherein a plurality of reinforcing rib plates which are sequentially bent and connected are arranged in the fourth horizontal layer, and the end parts of the two reinforcing rib plates are connected with the straight pipe.

8. The four-leg medium wellhead type B platform block suitable for standardization in the Bohai sea area according to claim 1, wherein the height difference between the fourth horizontal layer and the third horizontal layer, the height difference between the third horizontal layer and the second horizontal layer, and the height difference between the second horizontal layer and the first horizontal layer are 8000mm, 5500mm and 4500mm, respectively.

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