CN219299997U

CN219299997U - U-shaped joint

Info

Publication number: CN219299997U
Application number: CN202222669528.0U
Authority: CN
Inventors: 景丽百合; 景辉元
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-19
Filing date: 2022-10-01
Publication date: 2023-07-04
Anticipated expiration: 2032-10-01

Abstract

The utility model provides two U-shaped joints which are arranged in oil production wells, natural gas wells and water wells with limited outer diameters, are of concentric structures and integrated structures of casting or 3D printing, wherein the diameter of the inner part of each U-shaped structure is basically the same as that of a pipeline, and realize the mode that pipelines with the U-shaped joints are put into a space with limited outer diameters, so that gas and liquid are mutually sealed and the liquid is pushed by the gas to go upwards. When the U-shaped joint is drilled with a hole, the U-shaped joint is used for communicating the inner space and the outer space of the cavity, so that gas enters the fluid channel through the hole to reduce the density of fluid in the cavity.

Description

U-shaped joint

Technical Field

The utility model relates to a U-shaped joint for gas and liquid mutual sealing. The method is mainly applied to industries such as petroleum exploitation, drainage gas exploitation of a natural gas well and the like which utilize gas to recover liquid and drain liquid.

Background

The conventional U-shaped structure joint is mainly used for pipelines, such as floor drains, toilets and the like, which need to be sealed with liquid, is usually installed in a relatively wide space, and is difficult to realize if the joint is to be installed in oil production wells, natural gas wells and water wells with limited outer diameters and the diameter of the joint is basically the same as that of the pipelines.

Disclosure of Invention

The utility model aims to provide two concentric structures which are arranged in oil production wells, natural gas wells and water wells with limited outer diameters and are used for ensuring that the diameter inside a U-shaped structure is basically the same as that of a pipeline, and an integrated structure which is cast or 3D printed, so that a pipeline with a U-shaped joint is put into a space with limited outer diameters, and a form that gas and liquid are mutually sealed and the liquid is pushed by the gas to go upwards is realized.

The concentric structural member of the U-shaped connector has a simple structure, is used for communicating the inner space and the outer space of the cavity after the first hole (5) is drilled on the U-shaped connector, and ensures that gas enters the fluid channel 1 (12) through the first hole (5) so as to reduce the fluid density in the cavity, thereby realizing the purpose of reducing the fluid density by aeration.

The casting or 3D printing integrated piece of the U-shaped connector is simple in structure, and after the second hole (25) is drilled on the U-shaped connector of the integrated structure, the U-shaped connector is used for communicating the inner space and the outer space of the cavity, so that gas enters the cavity (23) through the second hole (25) to reduce the density of fluid in the cavity (23), and the purpose of reducing the density of fluid in a pipeline is achieved. The purpose of aeration to reduce the fluid density can be achieved.

The utility model is characterized in that:

the U-shaped connector has simple structure, no moving parts and no wearing parts, and is reliable in work and long in service life. Can be applied to oil production wells, natural gas wells and water wells with limited outer diameter, such as: oil wells producing oil with gas, drainage gas producing natural gas wells, and wells producing water with gas. Can be widely applied to industries, agricultural production, life, etc. of urban pipe networks and sewer pipelines.

Drawings

Fig. 1 is a front view and a top cross-sectional view of a U-shaped joint of an integral structure with a second (25) hole manufactured by casting or 3D printing in an embodiment of the present utility model.

Fig. 2 is a top cross-sectional view of three templates of a cast U-joint according to an embodiment of the utility model.

Fig. 3 is a front view and a left side view of a concentric U-shaped joint with a hole one (5) drilled in an embodiment of the present utility model.

Fig. 4 is a front view and a left side view of a concentric U-joint in an embodiment of the present utility model.

Fig. 5 is a front view and a top cross-sectional view of a U-shaped joint of unitary construction fabricated using casting or 3D printing in accordance with an embodiment of the present utility model.

Name in the figure: 1. a first thread; 2. an upper joint; 3. a second thread; 4. a lower joint; 5. a first hole; 6. a third thread; 7. a center cup; 8. a transverse bridge; 9. a connecting rod; 10. a screw thread IV; 11. a welding part; 12. a first fluid passage; 20. a fifth screw thread; 21. a housing; 22. a second fluid channel; 23. a cavity; 24. a sixth thread; 25. a second hole; 26. a core mold; 27. a first module; 28. a second module; 29. and a third module.

In order to achieve the above purpose, the technical solution of the present utility model mainly includes a concentric structure in which the upper joint (2), the lower joint (4) and the central cup (7) are connected, and an integral structure in which casting or 3D printing is adopted, in which:

the first embodiment is as follows:

the utility model is achieved by the following further detailed description of the utility model with reference to the accompanying drawings and examples:

referring to FIG. 1

Fig. 1 is a front view and a top cross-sectional view of a U-shaped joint of unitary construction with a hole 2 (25) manufactured by casting or 3D printing in an embodiment of the present utility model.

The U-shaped connector with the integrated structure is manufactured by casting or 3D printing, the shell (21) and the fluid channel II (22) are integrated, two ends of the shell (21) are connected with other pipelines by the screw thread IV (20) and the screw thread VI (24), the fluid channel II (22) is communicated with the interiors of other pipelines, the shell (21) is drilled with a hole II (25), the hole II (25) is provided with a hole towards the upward direction of fluid, and when the gas is utilized for draining, the hole II (25) is used for communicating the inner space and the outer space of a cavity, so that the gas enters the cavity (23) through the hole II (25) to reduce the density of the fluid in the cavity (23), and the purpose of reducing the density of the fluid in the pipelines is achieved. The device is used in production pipelines for drainage and gas production of oil production wells and natural gas wells and water wells, wherein the production pipelines need to be driven to move or ascend by gas.

Referring to FIG. 2

The U-shaped joint adopts a cast integral piece, a channel mandrel (26) is manufactured by using three modules, namely a first module (27), a second module (28) and a third module (29), and the three modules are convenient to demould; the mandrel (26) of the integral structure can also be printed and manufactured by adopting a 3D technology or directly printed and manufactured into a complete U-shaped structure joint by adopting a 3D technology.

Referring to FIG. 5

The U-shaped joint with an integrated structure is manufactured by casting or 3D printing, the shell (21) and the fluid channel II (22) are integrated, two ends of the shell (21) are connected with other pipelines by the screw thread IV (20) and the screw thread VI (24), so that the fluid channel II (22) is communicated with the interior of the other pipelines, and the U-shaped joint is used in production pipelines of oil production wells, gas well drainage gas production wells and water wells, which need to adopt gas to push liquid to move or go upwards.

The second embodiment is as follows:

referring to FIG. 3

A central cup (7) is arranged in a cavity of an upper joint (2) and a lower joint (4) which are connected with each other, an inlet of the upper joint (2) is inserted into the central cup (7) to form a complete U-shaped fluid channel I (12), the central cup (7) is connected or welded and fixed on a cross bridge (8) and a connecting rod (9) at the inlet end of the upper joint (2) through a screw thread IV (10), the cross bridge (8) and the inlet end of the upper joint (2) are at a distance of about 3 to 8 mm, the diameter of the inlet end of the upper joint (2) is ensured to be consistent with the diameter of the upper joint (2), the central cup (7) can also be fixed on the lower joint (4) through a screw, the upper joint (2) or the lower joint (4) is drilled with a hole I (5), the hole I (5) faces the upward direction of fluid, the hole I (5) is used for communicating with the cavity and the outer space when the gas is discharged, the gas enters the fluid channel I (12) through the hole I (5) to reduce the density of the cavity, the upper joint (2) is connected with the screw thread IV (6) through the screw thread IV and the oil well (1) through the screw thread IV, and the oil well (12) is connected with the screw thread IV (6) through the screw thread IV) to the oil well, the drainage and gas production of natural gas wells and water wells require gas to be used to push liquids into production pipelines that move or go upward.

Referring to FIG. 4

A central cup (7) is arranged in a cavity of an upper joint (2) and a lower joint (4) which are connected with each other, an inlet of the upper joint (2) is inserted into the central cup (7) to form a complete U-shaped first fluid passage (12), the central cup (7) is connected or welded and fixed on a transverse bridge (8) and a connecting rod (9) at the inlet end of the upper joint (2) after being connected through a screw thread (10), the transverse bridge (8) and the inlet end of the upper joint (2) are at a distance of about 3 to 8 mm, the drift diameter of the inlet end of the upper joint (2) is ensured to be consistent with that of the upper joint (2), the central cup (7) can be fixed on the lower joint (4) through a screw rod, and the screw thread (1) and the screw thread (6) at two ends of the upper joint (2) and the lower joint (4) are connected with other pipelines to enable the first fluid passage (12) to be communicated with the inside of other pipelines for petroleum recovery wells, natural gas well drainage and water wells to need to be pushed to move or move upwards by adopting gas.

Claims

1. A U-shaped joint comprises an upper joint (2), a lower joint (4) and a central cup (7); the method is characterized in that: the inlet of the upper connector (2) is inserted into the central cup (7), the central cup (7) is fixed on the upper connector (2), the upper connector (2) is connected with the lower connector (4) through the screw thread II (3) to form a complete U-shaped fluid channel I (12), the screw thread I (1) and the screw thread III (6) at the two ends of the upper connector (2) and the lower connector (4) are connected with other pipelines, and the fluid channel I (12) is communicated with the interior of the other pipelines.

2. The U-joint of claim 1 wherein: the lower joint (4) is drilled with a first hole (5).

3. The U-joint of claim 1 wherein: the central cup (7) is fixed on a transverse bridge (8) and a connecting rod (9) at the inlet end of the upper joint (2).

4. The U-joint of claim 1 wherein: the central cup (7) is fixed on the lower joint (4).

5. The U-joint of claim 1 wherein: the transverse bridge (8) at the inlet end of the upper joint (2) is spaced from the inlet end by about 3 to 8 mm.

6. The U-joint of claim 1 wherein: the first hole (5) is open towards the upward direction of the fluid.