CN217176586U - Fracturing manifold sledge and fracturing manifold sledge group - Google Patents

Abstract

The utility model relates to a fracturing manifold sledge and fracturing manifold sledge group, include: manifold assembly, end sledge assembly, valve member and extension connection structure, manifold assembly set up on end sledge assembly, and the valve member sets up on the manifold assembly, and wherein, manifold assembly passes through extension connection structure with end sledge assembly to be connected, and extension connection structure includes: connector, elbow and articulated elements, manifold assembly includes: the first manifold assembly and the second manifold assembly are connected with a plurality of fracturing manifold sleds through the second manifold assembly, the connectors are respectively connected with the second manifold assembly and the bottom sledge assembly through the hinged parts, and the elbow is connected with the first manifold assembly through the hinged parts, so that the technical problem that the processing progress is influenced by the puncture of the plug valve caused by vibration generated during field operation is solved or improved to a certain extent.

Description

Fracturing manifold sledge and fracturing manifold sledge group

Technical Field

The utility model relates to a petroleum machinery equipment technical field, concretely relates to fracturing manifold sledge and fracturing manifold sledge group.

Background

Along with the increase of the exploitation amount of oil and gas fields in China, the demand and daily increase of large-drift-diameter high-low pressure manifold sleds are increased, and along with the continuous increase of the demand, some problems are caused continuously; secondly, a support assembly at the bottom of the traditional bottom sledge and the bottom sledge are welded together, but the height of a welding leg needs to be adjusted or the height is adjusted by a welding mode of filling a gap when the height of the traditional bottom sledge is adjusted by adopting a welding mode, and paint needs to be polished and removed when welding operation is carried out, so that the processing progress is influenced; thirdly, how to solve the problem that after overpressure pressure relief, the fracturing fluid is not directly discharged to the ground through a safety valve and an unloading manifold to cause pollution, and the fracturing fluid is convenient to recover and observe and simultaneously prevents rainwater from entering a low-pressure manifold; fourthly, the problem that how to solve the problem that the high-pressure part between the single sledges is convenient to connect needs to be broken one by one.

Therefore, a technical solution is urgently needed to solve the technical problems, and the present application is particularly proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fracturing manifold sledge and fracturing manifold sledge group to solve to a certain extent because the technical problem that the plug valve thorn that vibrations that produce arouse when the field operation leaks and influences the processing progress.

The embodiment of the application is realized as follows:

in a first aspect, embodiments of the present application provide a fracturing manifold skid, including: the system comprises a manifold assembly, a bottom sledge assembly, a valve piece and an expansion connecting structure;

the manifold assembly is arranged on the bottom skid assembly, and the valve is arranged on the manifold assembly; the manifold assembly is connected with the bottom skid assembly through the expansion connecting structure;

the expansion connection structure includes: a connector, an elbow and a hinge;

the manifold assembly includes: a first manifold assembly and a second manifold assembly;

the connector is respectively connected with the second manifold assembly and the bottom sledge assembly through the hinged piece, and the elbow is connected with the first manifold assembly through the hinged piece.

In some embodiments, the valve member is a plug valve or a check valve.

In some embodiments, the fracturing manifold skid comprises a plurality; the second pipes are gathered into a main conveying pipe, the main conveying pipe comprises at least one flange straight pipe and a plurality of multi-interface pipe fittings, the flange straight pipes are connected with each other through the multi-interface pipe fittings, and the fracturing manifold sleds are connected through the flange straight pipes;

wherein the multi-port fitting comprises a rotating flange.

In some embodiments, the main duct path is not less than

Inch and rated working pressure not less than 103.5 MPa.

In some embodiments, the frac manifold skid further comprises a blind flange connected to an end of the main transport pipe.

In some embodiments, the bottom sled assembly is further provided with a bending piece structure, one end of the bending piece structure is connected with the bottom sled assembly, and the other end of the bending piece structure is in a semi-arc structure and configured to fix the first manifold assembly and the second manifold assembly through the semi-arc structure;

wherein, the inboard rubber circle that is provided with of half arc structure.

In some embodiments, the bending piece structure comprises: the U-shaped connecting rod, the T-shaped connecting plate and the L-shaped connecting seat are arranged on the base;

The L-shaped connecting seat is provided with a horizontal end face and a vertical end face, the horizontal end face is fixedly connected with the bottom sledge assembly, and at least two circular holes are formed in the vertical end face;

the T-shaped connecting plate is also provided with a horizontal end face and a vertical end face, the horizontal end face and the vertical end face are respectively provided with at least two waist holes, and the vertical end face of the T-shaped connecting plate is movably connected with the vertical end face of the L-shaped connecting seat by inserting connecting pieces between the waist holes and the round holes;

the U-shaped connecting rod is inserted into a waist hole in the horizontal end face of the T-shaped connecting plate and is movably connected with the horizontal end face of the T-shaped connecting plate.

In some embodiments, the fracturing manifold skid further comprises: a visual window frame, said visual window frame comprising: the device comprises an acrylic straight pipe, a safety valve and a liquid storage tank;

the acrylic straight pipe is connected between the outlet of the safety valve and the inlet of the liquid storage tank through a connecting piece, is configured to be used for recovering fracturing liquid, and is used for observing whether the fracturing liquid leaks or not through the visual window frame.

In some embodiments, the first manifold assembly comprises: first conveyer pipe and the second conveyer pipe that sets up side by side, and first conveyer pipe with communicate between the second conveyer pipe first conveyer pipe with the first connecting pipe and the second connecting pipe of second conveyer pipe, first connecting pipe with first conveyer pipe is connected at first hookup location, first connecting pipe with the second conveyer pipe is connected at second hookup location, the second connecting pipe with first conveyer pipe is connected at third hookup location, the second connecting pipe with the second conveyer pipe is connected at fourth hookup location.

In a second aspect, embodiments of the present application provide a fracturing manifold skid set, including at least two fracturing manifold skids as described in any one of the above embodiments.

Compared with the prior art, the beneficial effects of the embodiment of the application are that:

one of which, the utility model provides a fracturing manifold sledge connects a plurality of manifold sledges through second manifold assembly to and adopt the articulated elements to be connected the connector respectively with second manifold assembly and end sledge assembly, and the mode of being connected elbow and first manifold assembly through the articulated elements, solve to a certain extent or improved the plug valve thorn that the vibrations that produce arouse when owing to the field operation leaks the technical problem that influences the processing progress.

Two, the utility model provides a fracturing manifold sledge is provided with a plurality of structures of bending on end sledge assembly, and fixed mode is the bolt and nut connection, and the waist hole that the accessible was opened realizes the adjustment of direction of height, and structure (fig. 4) than before show, the lug weld, through adjusting the leg height or use the welding mode of filling the gap to come height-adjusting to need polish the depainting when welding operation goes on. The problem that the processing progress is influenced by field matching, paint repairing and the like is effectively avoided, the processes of field matching, paint repairing and the like are omitted, and the working efficiency is improved.

Third, the utility model provides a fracturing manifold sledge is through setting up visual window frame to adopt colourless transparent ya keli straight tube to pass through stay bolt connection in relief valve exit and liquid storage pot entrance, solved not make fracturing fluid directly discharge ground through relief valve and off-load manifold after the superpressure pressure release, realized that the recovery danger is useless, avoid polluting and be convenient for observe the effect that the superpressure leaked and prevent that the rainwater from entering into in the low pressure manifold.

It is fourth, the utility model provides a fracturing manifold sledge is through adopting rotatory flange structural connection between the sledge group for the ring flange at both ends can rotate, makes bolt hole on connecting bolt and the ring flange dock more convenient and fast, thereby reaches the purpose that high-pressure part is convenient for connect between single sledge and the single sledge.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic plan view of a fracturing manifold skid according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a further plan view of the fracturing manifold skid of FIG. 1 in a top view;

FIG. 3 is a schematic view of a visible window frame;

FIG. 4 is a schematic view of a conventional bonding structure;

FIG. 5 is a structural assembly schematic diagram of a bending piece;

FIG. 6 is an enlarged schematic view of a bending member structure;

FIG. 7 is a schematic view of the assembly of the expanded connection structure with the main transport pipe;

FIG. 8 is an enlarged view of the expanded connection structure and the main transport pipe of FIG. 7;

1-a bottom sled assembly; 2-a first manifold assembly; 21-a first delivery pipe; 22-a second delivery pipe; 23-a first connection pipe; 24-a second connecting tube; 201-first connection position; 202-a second connection location; 203-third connection location; 204-a fourth connection location; 3-a second manifold assembly; 31-a main delivery pipe; 311-flange straight pipe; 312-multi-port tubing; 3121-a rotating flange; 4-an expanded connection structure; 41-a connector; 42-bend; 43-hinge member; 5-plug valve; 6-a blind flange; 7-bending piece structure; 71-U shaped connecting rod; a 72-T shaped connecting plate; 721-kidney holes; 73-L-shaped connecting seats; 731-round hole; 8-a visible window frame; 81-acrylic straight pipe; 82-a safety valve; 83-a liquid storage tank; 9-flange five-way; a 10-manifold tee; 11-a pressure transmitter; 12-flange cross; 13-flange tee; 14-a union flange; 15-plug valve support.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience of describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

A fracturing manifold skid is an important means of communicating a fracturing truck or skid to a wellhead at a fracturing job site, which may typically include a low pressure manifold and/or a high pressure manifold. The low-pressure manifold is used for supplying low-pressure fracturing fluid to a fracturing pump on the fracturing truck, the high-pressure fracturing fluid is formed after being pressurized by the fracturing pump, and the high-pressure fracturing fluid of the multiple branches enters the high-pressure manifold and then is injected into an oil-gas well. In the fracturing operation, the fracturing manifold sleds can save well site layout space and facilitate transportation, and can also shorten the construction period and reduce the maintenance cost.

At present, with the increase of the exploitation amount of oil and gas fields in China, the demand and daily increase of large-drift-diameter high-low pressure manifold sleds are increased sharply, and with the continuous increase of the demand, some problems are caused continuously, firstly, due to the change of the demand of field operation, a plurality of fracturing manifold sleds need to be assembled and connected, and plug valves 5 are punctured and leaked due to vibration during field operation; secondly, a support assembly at the bottom of the traditional bottom sledge and the bottom sledge are welded together, but the height of a welding leg needs to be adjusted or the height is adjusted by a welding mode of filling a gap when the height of the traditional bottom sledge is adjusted by adopting a welding mode, and paint needs to be polished and removed when welding operation is carried out, so that the processing progress is influenced; thirdly, how to solve the problem that after overpressure pressure relief, the fracturing fluid is not directly discharged to the ground through a safety valve and an unloading manifold to cause pollution, and the fracturing fluid is convenient to recover and observe and simultaneously prevents rainwater from entering a low-pressure manifold; fourthly, the problem that how to solve the problem that the high-pressure part between the single sledge and the single sledge is convenient to connect needs to be broken one by one.

To solve or improve the above-mentioned problems to some extent, the following describes further a fracturing manifold skid and a fracturing manifold skid set provided by the embodiments of the present disclosure with reference to the accompanying drawings. Fig. 1 is a schematic plane structure diagram of a fracturing manifold skid according to an embodiment of the present disclosure; FIG. 2 is a schematic diagram of a further plan view of the fracturing manifold skid of FIG. 1 in a top view; referring to fig. 1 and 2, the frac manifold skid includes: the pipeline assembly comprises a manifold assembly, a bottom sledge assembly 1, a valve piece and an expansion connecting structure 4; the manifold assembly is arranged on the bottom skid assembly 1, and the valve is arranged on the manifold assembly; the manifold assembly is connected with the bottom skid assembly 1 through the expansion connecting structure 4. Through adopting extension connection structure 4 to be fixed in the manifold assembly with the scheme between the sledge assembly 1, effectively solve or improved to a certain extent because the technical problem that 5 stabs and leaks of plug valve that vibrations that produce when the field operation arouse influence the processing progress. Wherein, manifold assembly includes: a first manifold assembly 2 and a second manifold assembly 3.

As shown again in fig. 2, the first manifold assembly 2 includes a first delivery pipe 21 and a second delivery pipe 22 arranged side by side, and a first connection pipe 23 and a second connection pipe 24 that communicate the first delivery pipe 21 and the second delivery pipe 22 between the first delivery pipe 21 and the second delivery pipe 22. First connecting pipe 23 is connected to first delivery pipe 21 at first connecting point 201 and to second delivery pipe 22 at second connecting point 202; second connection pipe 24 is connected to first feed pipe 21 at third connection point 203 and to second feed pipe 22 at fourth connection point 204.

It should be noted that fig. 2 illustrates an example in which the first delivery pipe 21 and the second delivery pipe 22 are disposed in parallel, and the first connection pipe 23 and the second connection pipe 24 are disposed perpendicular to the first delivery pipe 21 and the second delivery pipe 22, but the structure of the first manifold assembly 2 is not limited thereto. For example, first delivery tube 21 and second delivery tube 22 may have a non-zero included angle therebetween; or the first connection pipe 23 and the second connection pipe 24 may not be perpendicular to the first delivery pipe 21 and the second delivery pipe 22. In addition, the first connection pipe 23 and the second connection pipe 24 may be disposed to cross each other, and they are not connected at the crossing position.

In some examples, the inner diameters of first and second delivery tubes 21 and 22, and first and second connector tubes 23 and 24 are 8-12 inches. Of course, embodiments of the present disclosure are not limited thereto. For example, in addition to the first delivery pipe 21 and the second delivery pipe 22, the first manifold assembly 2 may further include a greater number of delivery pipes, which is not limited by the embodiment of the disclosure. For example, the bottom skid assembly 1 may be a base formed by welding a plurality of intersecting beams, and serves to support the components on the fracturing manifold skid. The fracturing manifold sleds provided by the embodiments of the present disclosure can be used alone or in combination.

Fig. 3 is a schematic view of a visual window frame of a fracture manifold skid, which includes: a visible window frame 8, said visible window frame 8 comprising: a colorless transparent acrylic straight pipe 81, a safety valve 82 and a liquid storage tank 83; acrylic straight tube 81 pass through the connecting piece connect in the relief valve 82 exit with between the liquid storage pot 83 entrance, configure to the recovery that is used for the fracturing fluid, avoid directly discharging to ground polluted environment, and through visual window frame 8 observes whether fracturing fluid leaks, prevents simultaneously that the rainwater from entering into in the low pressure manifold.

FIG. 4 is a schematic view of a conventional lap-welding structure, FIG. 5 is an assembly view of a bending member structure, and FIG. 6 is an enlarged view of the bending member structure, please refer to FIGS. 4-6; the tradition sets up the structure on end sledge assembly 1 and goes for direct welding, and the later stage is not convenient for adjust, if really want the adjustment, need come height-adjusting through the welding mode of adjustment leg height or use filling gap to need polish the depainting when welding operation goes on. The problems that the processing progress is influenced by field research and paint repair and the like are increased. Therefore, the fracturing manifold sledge provided by the utility model further comprises a bending structure 7, which is arranged on the bottom sledge assembly 1, one end of the bending structure 7 is connected with the bottom sledge assembly 1, and the other end is in a semi-arc structure, and is configured to fix the first manifold assembly 2 and the second manifold assembly 3 by passing through the semi-arc structure;

The rubber ring is arranged on the inner side of the semi-arc-shaped structure and is in contact with the first manifold assembly 2 and the second manifold assembly 3, so that the rubber ring is prevented from being in contact with the bending piece structure 7 to rub, and the service lives of the first manifold assembly 2 and the second manifold assembly 3 are prolonged. The bending piece structure 7 comprises a U-shaped connecting rod 71, a T-shaped connecting plate 72 and an L-shaped connecting seat 73; the L-shaped connecting seat 73 has a horizontal end surface and a vertical end surface, the horizontal end surface is fixedly connected with the bottom sled assembly 1, and the vertical end surface is provided with at least two circular holes 731; the T-shaped connecting plate 72 is also provided with a horizontal end surface and a vertical end surface, the horizontal end surface and the vertical end surface are respectively provided with at least two waist holes 721, and the vertical end surface of the T-shaped connecting plate 72 is movably connected with the vertical end surface of the L-shaped connecting seat 73 through inserting connecting pieces, preferably bolts, between the waist holes 721 and the round holes 731; the U-shaped connecting rod 71 is inserted into the kidney hole 721 of the horizontal end face of the T-shaped connecting plate 72 and is movably connected with the horizontal end face of the T-shaped connecting plate 72. The height can be adjusted through threads, a sliding groove fastening structure, a hydraulic system, a gear rack structure and a four-bar mechanism, and the embodiment of the disclosure is not described in detail. Through setting up a structure 7 of bending, when job site ground unevenness, can adjust the height of different landing legs to improve the environmental suitability of fracturing manifold sledge. Through waist hole 721 seted up, realized the adjustment of direction of height, compared with the structure of preceding lug weld on the bottom sledge, effectively solved or avoided on-the-spot research and join in marriage and the problem that influences the processing progress such as touch-up paint, show the efficiency that has promoted production.

FIG. 7 is a schematic view of the assembly of the expanded connection structure with the main transport pipe, and FIG. 8 is an enlarged view of the expanded connection structure and the main transport pipe in FIG. 7; referring to fig. 7-8, the expansion connection structure 4 includes: connector 41, elbow 42 and hinge 43; the manifold assembly includes: a first manifold assembly 2 and a second manifold assembly 3; wherein, the joint 41 is connected to the second manifold assembly 3 and the bottom sled assembly 1 through the hinge 43, and the elbow 42 is connected to the first manifold assembly 2 through the hinge 43. Preferably, the valve member is a plug valve 5 or a check valve, and the plug valve 5 can play a role in controlling the opening and closing of the pipeline, so that safety guarantee is provided for the operation and maintenance of the operation gap fracturing pump. Wherein, the end part of the plug valve 5 is also provided with a plug valve support member 15 for supporting the plug valve 5; in addition, the fracturing manifold sleds comprise a plurality of; the second manifold assembly 3 includes: the main conveying pipe 31 includes at least one flange straight pipe 311 connected to each other, and a plurality of multi-port pipe fittings 312 disposed at two ends of the flange straight pipe 31, where the number of the multi-port pipe fittings 312 may also be 2, 3, or more than 4, which is not limited in this disclosure. Connecting the flange straight pipes 311 through the multi-interface pipe fitting 312, and connecting a plurality of fracturing manifold sleds through the flange straight pipes 311; the multi-joint pipe 312 includes a rotating flange 3121, and by adopting a mature flange structure, the connection between the single skid and the high pressure part between the single skids can be facilitated, and the connection between the skid groups can be accelerated.

In addition, the main transmission pipe 31 is further provided with a flange five-way 9, a manifold three-way 10, a flange four-way, a union flange 14 and the like, and specifically, the manifold three-way 10 is further provided with a pressure transmitter 11. The fracturing manifold skid further comprises a blind flange 6 connected to one end of the main conveying pipe 31 and used for plugging the end of the main conveying pipe 31. In addition, the main delivery pipe 31 has a diameter not smaller than

Inch and rated working pressure not less than 103.5 MPa.

In the fracturing manifold skid provided by the embodiment of the disclosure, the main passage of the main conveying pipe 31 is connected by a flange, and the side passages are connected by a union. Through the flange and union connected mode combined use in main conveyer pipe 31, both have the effect of installation reliable convenient, can provide more large-traffic high pressure fracturing fluid again. By integrating the first manifold assembly 2 and/or the second manifold assembly 3 into the bottom skid assembly 1, transportation of the fracturing manifold skid and adjustment of the site placement position are facilitated. In the fracturing manifold sledge provided in the embodiment of the present disclosure, the relative positions of the first manifold assembly 2 and the second manifold assembly 3 are not limited, that is, the second manifold assembly 3 is located above, and the first manifold assembly 2 is located below, or vice versa. For example, in the second manifold assembly 3, the number of the main delivery pipes 31 may also be multiple, and the multiple main delivery pipes 31 may be connected by connecting pipes, and the connecting structure thereof may refer to the connecting structure in the first manifold assembly 2. The embodiments of the present disclosure do not limit this. The fracturing manifold sledge provided by the embodiment of the disclosure can be independently used on the fracturing construction site of an oil and gas field, and provides high-pressure fracturing fluid for the oil and gas well.

It should be noted that, as shown in fig. 1 and 2 again, in the length direction of the main conveying pipe 31, the first connecting pipe 23 and the second connecting pipe 24 are located between the flange five-way 9 and the flange four-way 12 which are located farthest away and are respectively arranged at both ends of the main conveying pipe 31. It will be appreciated that the number of flange cross-piece 12 and flange cross-piece 9 is not limited herein. For example, when the number of the multi-port pipe fittings 312 is greater than 2, the first connection pipe 23 and the second connection pipe 24 are located between the farthest-apart two of the multi-port pipe fittings 312 in the length direction of the main feed pipe 31. The fracturing manifold sleds provided by the embodiment of the disclosure can be combined and used on the fracturing construction site of an oil and gas field to form a fracturing manifold sled group so as to connect more fracturing trucks, thereby improving the flow of a main conveying pipe.

The utility model discloses an on the other hand provides a fracturing manifold sledge group, including the fracturing manifold sledge of two at least above-mentioned embodiments.

As shown in fig. 7 again, the fracturing manifold skid set includes three fracturing manifold skids, the main delivery pipes 31 of the second manifold assemblies 3 of the three fracturing manifold skids are communicated with each other, the first delivery pipes 21 of the first manifold assemblies 2 of the three fracturing manifold skids are communicated with each other, and the second delivery pipes 22 of the first manifold assemblies 2 of the three fracturing manifold skids are communicated with each other. For example, adjacent main delivery pipes 31 may be connected by a straight flange pipe 311, and adjacent first delivery pipe 21 and second delivery pipe 22 may be connected by a low-pressure hose. Through the combined use of a plurality of fracturing manifold sleds, the number of fracturing trucks that can connect is further increased to the flow of main delivery pipe 31 has been improved.

The fracturing manifold skid group provided by the embodiment of the disclosure can further improve the flow of the main conveying pipe 31. In addition, the fracturing manifold can be disassembled into a plurality of fracturing manifold sleds so as to be convenient to transport. The following points need to be explained: in the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are referred to, and other structures may refer to general designs. In other words, the features of the present disclosure may be combined with each other in the same embodiment or different embodiments without conflict.

Finally, it should be noted that the above only illustrates a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the scope of the claims of the present invention pending from the application.

Claims (10)

1. A fracturing manifold skid, comprising: the pipeline assembly comprises a manifold assembly, a bottom skid assembly (1), a valve and an expansion connecting structure (4);

the manifold assembly is arranged on the bottom skid assembly (1), and the valve is arranged on the manifold assembly; wherein the manifold assembly is connected with the bottom skid assembly (1) through the expansion connecting structure (4);

The expansion joint structure (4) comprises: a connector (41), an elbow (42) and a hinge (43);

the manifold assembly includes: a first manifold assembly (2) and a second manifold assembly (3);

the connecting head (41) is respectively connected with the second manifold assembly (3) and the bottom sledge assembly (1) through the hinge piece (43), and the elbow (42) is connected with the first manifold assembly (2) through the hinge piece (43).

2. The frac manifold skid of claim 1, wherein the valve member is a plug valve (5) or a check valve.

3. The fracturing manifold skid of claim 1, wherein the fracturing manifold skid comprises a plurality; the second manifold assembly (3) is a main conveying pipe (31), the main conveying pipe (31) comprises at least one flange straight pipe (311) connected with each other, and a plurality of multi-interface pipe fittings (312) arranged at two ends of the flange straight pipe (311), the flange straight pipes (311) are connected through the multi-interface pipe fittings (312), and a plurality of fracturing manifold sleds are connected through the flange straight pipes (311);

wherein the multi-port pipe fitting comprises a rotating flange (3121).

4. The fracturing manifold skid of claim 3, wherein the main conveying pipe (31) has a drift diameter no less than

Inch and rated working pressure not less than 103.5 MPa.

5. The frac manifold skid of claim 4, further comprising a blind flange (6) connected to one end of the main transfer pipe (31).

6. The fracturing manifold skid according to claim 1, wherein the bottom skid assembly (1) is further provided with a bending piece structure (7), one end of the bending piece structure (7) is connected with the bottom skid assembly (1), and the other end of the bending piece structure is in a semi-arc structure and is configured to fix the first manifold assembly (2) and the second manifold assembly (3) through the semi-arc structure;

wherein, the inboard rubber circle that is provided with of half arc structure.

7. The frac manifold skid of claim 6, wherein the bender structure (7) comprises: the U-shaped connecting rod (71), the T-shaped connecting plate (72) and the L-shaped connecting seat (73);

the L-shaped connecting seat (73) is provided with a horizontal end face and a vertical end face, the horizontal end face is fixedly connected with the bottom sledge assembly (1), and at least two circular holes (731) are formed in the vertical end face;

the T-shaped connecting plate (72) is also provided with a horizontal end face and a vertical end face, the horizontal end face and the vertical end face are respectively provided with at least two waist holes (721), and the vertical end face of the T-shaped connecting plate (72) is movably connected with the vertical end face of the L-shaped connecting seat (73) by inserting connecting pieces between the waist holes (721) and the round holes (731);

The U-shaped connecting rod (71) is inserted into a waist hole (721) on the horizontal end face of the T-shaped connecting plate (72) and is movably connected with the horizontal end face of the T-shaped connecting plate (72).

8. The fracturing manifold skid of claim 7, further comprising: -a visual window frame (8), the visual window frame (8) comprising: an acrylic straight pipe (81), a safety valve (82) and a liquid storage tank (83);

the acrylic straight pipe (81) is connected between the outlet of the safety valve (82) and the inlet of the liquid storage tank (83) through a connecting piece, and is configured to be used for recovering fracturing liquid and observing whether the fracturing liquid leaks or not through the visual window frame (8).

9. The fracturing manifold skid according to any of claims 6 to 8, wherein the first manifold assembly (2) comprises: first conveyer pipe (21) and second conveyer pipe (22) that set up side by side, and first conveyer pipe (21) with communicate between second conveyer pipe (22) first conveyer pipe (21) with first connecting pipe (23) and second connecting pipe (24) of second conveyer pipe (22), first connecting pipe (23) with first conveyer pipe (21) are connected at first hookup location (201), first connecting pipe (23) with second conveyer pipe (22) are connected at second hookup location (202), second connecting pipe (24) with first conveyer pipe (21) are connected at third hookup location (203), second connecting pipe (24) with second conveyer pipe (22) are connected at fourth hookup location (204).

10. A frac manifold skid set comprising at least two frac manifold skids according to any one of claims 1-9.

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