CN218175900U - Underwater barrel-shaped foundation mud entering righting base plate - Google Patents

Abstract

The utility model provides an underwater barrel-shaped foundation into the mud and uprighting base plate, comprising: base plate main body, which has a through hole passing through along its height direction inside, the through hole has a central axis, and the through hole includes an inner diameter from top to bottom The tapered guide entrance and the installation hole arranged below the guide entrance; at least one layer of centralizing components, each layer of centralizing components includes a plurality of centralizing plates arranged at intervals along the circumferential direction of the mounting hole, and each centralizing plate is respectively arranged along the radial direction of the mounting hole set and detachably connected with the main body of the base plate, each centralizing plate has a plurality of fixed positions in the radial direction of the mounting hole, and each centralizing plate has a guide slope in the mounting hole, by changing the fixed position of the centralizing plate , to adjust the distance between the guide slope and the central axis. The utility model can guide and straighten the barrel-shaped foundation lowered into the water, prevent the barrel-shaped foundation from being skewed due to the influence of the undercurrent at the bottom of the water, and reduce the working time for lowering the barrel-shaped foundation to the mud surface.

Description

A kind of underwater barrel-shaped foundation into the mud and righting the base plate

technical field

The utility model relates to the technical field of seabed drilling, in particular to an underwater barrel-shaped foundation that enters mud and straightens a base plate.

Background technique

In the process of offshore oil and gas exploration, blocks with relatively rich resources are often encountered. When the block is located in a sensitive area (such as a waterway, etc.), the oil and gas production in this block must be exploited underwater, so it is necessary to Build a submerged wellhead.

The establishment of underwater wellheads is generally done by underwater jetting or by suction piles into barrel foundations (such as water risers). If the water depth is deep, underground undercurrents, etc., the barrel foundation will be unstable such as skewing , so it is necessary to right it, but there is a lack of corresponding righting device at present.

Utility model content

The purpose of the utility model is to provide an underwater barrel-shaped foundation into the mud and straighten the base plate, so as to solve the problem that the barrel-shaped foundation is skewed during the underwater entry process.

In order to achieve the above purpose, the utility model proposes an underwater barrel-shaped foundation that enters the mud and stabilizes the base plate, including: the base plate main body, which has a through hole passing through its height direction, the through hole has a central axis, and the The through hole includes a guide inlet whose inner diameter is tapered from top to bottom and a mounting hole arranged below the guide inlet; at least one layer of righting components, each layer of which includes a plurality of each of the centralizing plates is respectively arranged along the radial direction of the installation hole, and is detachably connected with the main body of the base plate, and each of the centralizing plates has a plurality of Each of the centralizing plates has a guide inclined surface located in the installation hole, and the guiding inclined surface is inclined from top to bottom toward the direction close to the central axis. By changing the fixed position of the centralizing plate, it can be adjusted The distance between the guide slope and the central axis.

The above-mentioned centralizing base plate, wherein each of the centralizing plates has a limit surface parallel to the central axis, the limit surface is located in the installation hole, and the limit surface is located on the guide slope below, and connected with the guide slope.

As mentioned above, the centering base plate, wherein, the limiting surface is a plane or an arc surface.

The above-mentioned centralizing base plate, wherein, the side wall of the base plate main body is provided with sockets for inserting each of the centralizing plates, the sockets communicate with the installation holes, and the centralizing plates extend through the sockets. into the mounting hole.

The above-mentioned centralizing base plate, wherein, each of the centralizing plates has a plurality of connection holes arranged at intervals along the radial direction of the installation hole, and the outer wall of the base plate main body is fixed with The fixing piece is provided with a fixing hole, and the centralizing plate is fixed at any one of the fixing positions by connecting the fixing hole with any of the connecting holes.

The above-mentioned centralizing base plate, wherein, the fixing member is a fixing plate with a U-shaped section, the inside of the fixing plate is a slot, and the slot corresponds to and communicates with the socket, and the centralizing plate is inserted into The slot and the socket.

As for the above-mentioned righting base plate, wherein, the fixing hole is detachably connected to the connecting hole through a connecting piece.

The above-mentioned centralizing base plate, wherein, the centralizing base plate includes multi-layer centralizing components, and the multi-layer centralizing components are arranged in sequence along the height direction of the centralizing base plate.

As mentioned above, the base plate body includes a base and a barrel fixed on the base, the through hole runs through the barrel and the base, and the inside of the barrel forms the the guide inlet and the mounting hole.

The above-mentioned centralizing template, wherein, the centralizing template further includes a fixed anchor for inserting into the mud, and the fixed anchor is fixed under the main body of the template.

The characteristics and advantages of the underwater barrel-shaped foundation of the utility model entering the mud and righting the base plate are:

1. The erecting base plate of the utility model can guide and straighten the barrel-shaped foundation that is lowered into the water by setting the guide entrance and at least one layer of erecting components, so as to prevent the barrel-shaped foundation from being skewed due to the influence of the undercurrent at the bottom of the water, and lower the barrel. The operation time for lowering the shaped foundation to the mud surface;

2. In the utility model, the centralizing plate has a plurality of fixed positions, that is, the position of the centralizing plate can be adjusted. By adjusting the position of the centralizing plate, on the one hand, the size of the space surrounded by the multiple centralizing plates of each layer of centralizing components can be adjusted to realize the The guide and righting of barrel-shaped foundations with different diameters, on the other hand, can adjust the center position of each layer of righting components, so that its center is concentric with the central axis of the through hole, so as to achieve a good righting effect;

3. The utility model keeps the barrel-shaped foundation stably in the alignment position by setting a limit surface on the centralizing plate;

4. The utility model can form multiple guiding and multi-layer centralizing for the barrel-shaped foundation by setting multi-layer centralizing components, so that the centralizing base plate has better guiding and centralizing effects.

Description of drawings

The following drawings are only intended to illustrate and explain the utility model schematically, and do not limit the scope of the utility model. in:

Fig. 1 and Fig. 2 are the structural schematic diagrams of the centralizing base plate of an embodiment of the present invention when the centralizing plate is in different fixed positions;

Fig. 3 is a structural schematic diagram of the base plate main body in the utility model;

Fig. 4 is the structural representation of centralizing plate in the utility model;

Fig. 5 is a schematic structural view of the fixture in the utility model;

Fig. 6 is a top view of the righting base plate of an embodiment of the present invention;

Fig. 7 is the schematic diagram that the centralizing base plate of one embodiment of the present invention is fixed on the mud surface;

Fig. 8 to Fig. 11 are schematic diagrams of the guide of the barrel-shaped foundation during the process of lowering the barrel-shaped foundation of the centralizing base plate according to an embodiment of the present invention.

Explanation of main component labels:

1. The main body of the base plate; 11. The base; 12. The barrel body;

2. Righting assembly; 21. Righting plate; 211. Guide slope;

212, limit surface; 213, connection hole;

3. Through hole; 31. Guide entrance; 32. Mounting hole;

4. Fixing piece; 41. Fixing hole; 42. Slot;

5. Connecting piece; 6. Intubation tube; 100. Barrel-shaped foundation.

detailed description

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings. Wherein, the use of adjective or adverbial modifiers "upper" and "lower", "top" and "bottom", "inner" and "outer" is only for relative reference between groups of terms and is not descriptive. Any specific directional constraints on the modified term. In the description of the present utility model, unless otherwise specified, "plurality" means two or more. In the description of the present utility model, unless otherwise specified, the term "connection" should be understood in a broad sense, for example, it may be a fixed connection, it may be a detachable connection, it may be a direct connection, it may be an indirect connection through an intermediary, for this Those of ordinary skill in the art can understand the specific meanings of the above terms in this patent according to specific situations.

As shown in Fig. 1 and Fig. 2, the utility model provides an underwater bucket-shaped foundation into the mud uprighting base plate, which includes a base plate main body 1 and at least one layer of righting components 2, and the inside of the base plate main body 1 has Direction through hole 3, the through hole 3 has a central axis O, the through hole 3 includes a guide inlet 31 and a mounting hole 32 located below the guide inlet 31, the inner diameter of the guide inlet 31 is tapered from top to bottom, that is, the guide inlet 31 In the shape of a bell mouth, the guide inlet 31 can guide the barrel-shaped foundation 100 entering the through hole 3 , and guide the barrel-shaped foundation 100 into the installation hole 32 .

Each layer of centralizing assembly 2 includes a plurality of centralizing plates 21 arranged at intervals along the circumferential direction of the mounting hole 32, each centralizing plate 21 is respectively arranged along the radial direction of the mounting hole 32, and each centralizing plate 21 is on the radial direction of the mounting hole 32 There are multiple fixed positions, and each centralizing plate 21 is detachably connected with the main body 1 of the base plate, so as to adjust the fixed position of the centralizing plate 21, and each centralizing plate 21 has a guide slope 211 located in the installation hole 32, and the guide slope 211 Inclined from top to bottom toward the direction close to the central axis O, the guide slopes 211 of the multiple centralizing plates 21 of each layer of centralizing components 2 can jointly guide the barrel-shaped foundation 100 entering the installation hole 32, so that the barrel-shaped foundation 100 and the through-hole The central axis O of the hole 3 is aligned. By changing the fixed position of the centralizing plate 21, the distance between the guide slope 211 and the central axis O is adjusted. The size of the space enclosed by the plate 21 can guide and straighten barrel-shaped foundations 100 of different diameters. On the other hand, the central position of the straightening assembly 2 of each layer can be adjusted so that its center is concentric with the central axis O of the through hole 3. Thereby playing a very good righting effect.

The straightening base plate of the utility model can guide and straighten the barrel-shaped foundation that is lowered into the water, and prevent the barrel-shaped foundation from being skewed due to the influence of the undercurrent at the bottom of the water.

As shown in Figures 1 and 2, in one embodiment, each centralizing plate 21 also has a limiting surface 212 parallel to the central axis O. The limiting surface 212 can also be called a centralizing surface. In the hole 32, the limit surface 212 is located below the guide slope 211 and is connected with the guide slope 211. When the barrel-shaped foundation 100 is aligned with the central axis of the through hole 3 under the guidance of the guide slopes 211 of the multiple centralizing plates 21, The limiting surfaces 212 of the plurality of centralizing plates 21 can keep the barrel foundation 100 stably at the alignment position. But the utility model is not limited thereto. In other embodiments, the limiting surface 212 may not be provided, but the multi-layer centralizing assembly 2 arranged along the height direction of the centralizing base plate is provided, relying on the multi-layer centralizing assembly 2 The bottom end of the multi-layer guiding slope 211 can also keep the barrel-shaped foundation stably in the alignment position.

In this embodiment, further, the limiting surface 212 is a plane or an arc surface. When the limiting surface 212 is a plane, the limiting surface 212 is in line contact with the outer wall of the barrel-shaped foundation; when the limiting surface 212 is an arc surface, the limiting surface 212 is in surface contact with the outer wall of the barrel-shaped foundation, In order to make the arc surface adaptable to barrel-shaped foundations with different outer diameters, it is better to set the diameter of the arc surface to be larger, for example, the diameter of the arc surface is equal to the diameter of the installation hole 32 .

In one embodiment, sockets for inserting the centralizing plates 21 are provided on the side wall of the base plate main body 1, and the sockets communicate with the mounting holes 32, and the centralizing plates 21 extend into the mounting holes 32 through the sockets, which not only facilitates the installation of the centralizing plates 21 , it is also convenient to adjust the position of the centralizing plate 21 in the radial direction of the mounting hole 32 .

As shown in Figures 3 and 4, further, each centralizing plate 21 has a plurality of connecting holes 213 arranged at intervals along the radial direction of the mounting hole 32, and the outer wall of the base plate main body 1 is fixed with fixing pieces corresponding to the sockets 4. The fixing member 4 is provided with a fixing hole 41 , and by connecting the fixing hole 41 with any connecting hole 213 , the centralizing plate 21 is fixed at any fixed position.

As shown in Figure 5, further, the fixing member 4 is a U-shaped fixing plate in section, the inside of the fixing plate is a slot 42, the slot 42 corresponds to and communicates with the socket, and the centralizing plate 21 is inserted into the slot 42 and the socket, U The shaped fixing plate can not only support the centralizing plate 21, but also keep the centralizing plate 21 in an upright state, prevent the centralizing plate 21 from skewing, and make the centralizing plate 21 play a stable and reliable guiding role on the barrel-shaped foundation.

As shown in FIG. 6 , further, the fixing hole 41 is detachably connected to the connecting hole 213 through the connecting piece 5 . For example, the connecting piece 5 is a bolt or a bearing pin, which is easy to assemble and disassemble.

As shown in FIG. 1 and FIG. 2 , in one embodiment, the centralizing base plate includes multi-layer centralizing components 2 , and the multi-layer centralizing components 2 are arranged at intervals along the height direction of the centralizing base plate. In this embodiment, by setting the multi-layer centering assembly 2 , multiple guides and multi-layer centering can be formed on the barrel-shaped foundation 100 , providing better guiding and centering effects for the barrel-shaped foundation 100 .

As shown in FIG. 3 , in one embodiment, the base body 1 includes a base 11 and a barrel body 12 fixed on the base 11 , the through hole 3 runs through the barrel body 12 and the base 11 , and the inside of the barrel body 12 forms a guide inlet 31 With the installation hole 32, the centralizing plate 21 of each layer of centralizing assembly 2 is connected on the bucket body 12.

As shown in FIG. 6 , specifically, the base 11 is a square steel structure, and the bucket body 12 is fixed at the center of the base 11 .

As shown in FIG. 7 , in one embodiment, the erecting template further includes a fixed anchor for inserting into the mud, and the fixed anchor is fixed under the template main body 1 to support and fix the template main body 1 .

As shown in Figure 7 again, specifically, the fixed anchor comprises a plurality of hollow intubates 6, for example four intubates 6, and the four intubates 6 are respectively fixed at the four corners of the base 11 to stably support the main body of the base plate 1.

When using the righting base plate of the present utility model, concrete operations are as follows:

① Hoist the uprighting base plate above the sea level, then slowly lower it to the mud surface of the seabed, and continue to lower it slowly. At this time, relying on the self-weight of the equipment, the fixed anchor can be pressed below the mud surface, so that the entire centering base plate can be fixed to the specified position. The position will not be affected by the load and move arbitrarily. At this time, the height direction and the central axis direction of the erecting base plate are basically vertical directions (as shown in Figure 7);

② Hoisting and lowering the barrel-shaped foundation 100 that needs to be constructed, first slowly lower it to the top of the uprighting base plate, and then continue to lower it to the position of the guide entrance 31 (as shown in Figure 8). Due to this reason, it is impossible to completely align with the erecting base plate, continue to lower the barrel-shaped foundation, and the barrel-shaped foundation 100 slides into the installation hole 32 along the slope of the guide entrance 31 (as shown in Figure 9);

③Continue to lower the barrel-shaped foundation. If the barrel-shaped foundation 100 is not concentric with the installation hole 32 at this time, it will touch the guide slope 211 of the centralizing plate 21. The guide slope 211 slides down until the bottom surface of the barrel foundation 100 moves out of the guide slope 211 and enters the middle position of a plurality of centralizing plates 21 (as shown in FIG. 10 ), thereby centralizing the barrel foundation 100;

④Continue to lower the barrel-shaped foundation 100. After the barrel-shaped foundation 100 passes through two or more layers of righting components 2, the center position of the barrel-shaped foundation 100 is the same as the center of the centering base plate. Since the central axis direction of the centering base plate is vertical direction, so the barrel foundation 100 is also basically in a vertical state, and the barrel foundation 100 is basically vertical relative to the mud surface (as shown in Figure 11);

⑤ After the bucket foundation 100 is lowered, the water can be lifted out of the erecting base plate, and the bucket foundation 100 can be left on the mud surface.

The righting base of the utility model has at least the following technical effects:

1. The erecting base plate of the utility model has a very good righting effect on the barrel foundation by setting a guide structure in the process of lowering the barrel foundation, which can ensure a successful lowering at one time and avoid the need to reinstall the foundation due to the skew of the barrel foundation. Lifting out and lowering again greatly reduces the working time of lowering the barrel foundation to the mud surface;

2. The uprighting base plate of the utility model can be used repeatedly, and barrel-shaped foundations of different specifications or the same specification can be repeatedly lowered below the mud surface. It has strong versatility and can be applied to large-scale operations within a unified range.

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present utility model shall fall within the protection scope of the present utility model. And it should be noted that each component of the utility model is not limited to the above-mentioned overall application, and each technical feature described in the specification of the utility model can be selected to be used alone or in combination according to actual needs. Therefore, The utility model naturally covers other combinations and specific applications related to the invention point of the case.

Claims (10)

1. The utility model provides an underwater barrel-shaped basis goes into mud and rights base plate which characterized in that, right the base plate and include:

the base plate comprises a base plate main body, a plurality of through holes and a plurality of fixing holes, wherein the base plate main body is internally provided with a through hole which is communicated along the height direction of the base plate main body, the through hole is provided with a central axis, and the through hole comprises a guide inlet with the inner diameter gradually reduced from top to bottom and a mounting hole arranged below the guide inlet;

the template comprises a base plate body, a plurality of installation holes are formed in the base plate body, the template comprises at least one layer of righting assembly, each layer of righting assembly comprises a plurality of righting plates arranged along the circumferential direction of the installation hole at intervals, each righting plate is arranged along the radial direction of the installation hole and is detachably connected with the base plate body, each righting plate is provided with a plurality of fixing positions in the radial direction of the installation hole, each righting plate is provided with a guide inclined plane located in the installation hole, the guide inclined plane inclines towards the direction close to the central axis from top to bottom, and the distance between the guide inclined plane and the central axis is adjusted by changing the fixing positions of the righting plates.

2. The strengthening template of claim 1, wherein each of the strengthening plates has a limiting surface parallel to the central axis, the limiting surface is located in the mounting hole, and the limiting surface is located below the guide slope and connected to the guide slope.

3. The strengthening baseplate of claim 2, wherein the limiting surface is a flat surface or an arc surface.

4. The strengthening template of claim 1, wherein the sidewall of the template body is provided with a socket for each strengthening plate to be inserted into, the socket communicating with the mounting hole, and the strengthening plate extends into the mounting hole through the socket.

5. The centralizing basal disc of claim 4, wherein each centralizing plate is provided with a plurality of connecting holes which are arranged at intervals along the radial direction of the mounting hole, a fixing piece corresponding to each socket is fixed on the outer wall of the basal disc main body, a fixing hole is arranged on the fixing piece, and the centralizing plate is fixed at any fixing position by connecting the fixing hole with any connecting hole.

6. The centralizing basal disc of claim 5, wherein the fixing piece is a fixing plate with a U-shaped section, the fixing plate is internally provided with a slot corresponding to and communicated with the socket, and the centralizing plate is inserted into the slot and the socket.

7. The strengthening base of claim 5, wherein the fixing holes and the connecting holes are detachably connected by a connector.

8. The centralizing matrix according to any one of claims 1 to 7, wherein the centralizing matrix comprises a plurality of layers of centralizing components, and the plurality of layers of centralizing components are arranged in sequence along the height direction of the centralizing matrix.

9. The centering template of any one of claims 1 to 7, wherein said template body comprises a base and a barrel body fixed to said base, said through hole extending through said barrel body and said base, said guide inlet and said mounting hole being formed in the interior of said barrel body.

10. The strengthening template of any one of claims 1 to 7, further comprising a set anchor for insertion into the mud, the set anchor being secured below the template body.

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