Novel injection-production device

Abstract

The utility model belongs to the technical field of oil field polymer injection, and discloses a novel injection-production device. The device comprises a polymer injection main body, at least one centralizing body and symmetrically arranged eccentric injection allocation channels are further arranged in the polymer injection main body, polymer injection outlets are further formed in the positions, corresponding to the eccentric injection allocation channels, of the surface of the polymer injection main body, and the bottom of the polymer injection main body is connected with a lower connector through a connecting sleeve. A rotary guide mechanism is further arranged at the joint of the polymer injection main body and the connecting sleeve, a polymer injection inlet is formed in the top of the rotary guide mechanism, and the rotary guide mechanism is used for blocking or opening the polymer injection inlet; an eccentric blanking plug is further arranged in the eccentric injection allocation channel, a connecting rod is arranged at the plugging end of the eccentric blanking plug, a throttling body is arranged at the tail end of the connecting rod, and the throttling body drives the connecting rod through the eccentric blanking plug so as to move up and down between the polymer injection inlet and the polymer injection outlet. The polymer injection efficiency is improved, and meanwhile, the injection amount of the polymer can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of oil field polymer injection, in particular to a novel injection and production device. Background Art

[0002] In the field of oil field production, in order to increase production, a polymer is injected into the well by an injector, thereby increasing oil production. However, the polymer solution currently injected into the oil field generally has strong thixotropy and is easily sheared and degraded at the throttling part. Therefore, it is very important to retain the viscosity of the polymer during injection and separation. However, due to structural reasons, the existing injector has poor injection effect, which affects the oil production efficiency of the oil well.

[0003] Furthermore, the eccentric polymer injection structure in the prior art usually has a single polymer injection outlet. When in use, the polymer injection efficiency is limited, and when in use, the polymer injection outlet cannot be closed according to an emergency situation. Utility Model Content

[0004] The purpose of the utility model is to provide a new injection-production device to solve the problem that the eccentric injection structure in the prior art proposed in the above background technology is usually a single injection outlet, the injection efficiency is limited when in use, and the injection outlet cannot be closed according to emergency situations when in use.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A novel injection and production device comprises an injection polymer body, the top of which is connected to an upper joint, at least one centralizing body and a symmetrically arranged eccentric injection channel are also arranged inside the injection polymer body, an injection polymer outlet is also arranged at a position on the surface of the injection polymer body corresponding to the eccentric injection channel, the bottom of the injection polymer body is connected to a lower joint through a connecting sleeve, and a rotating guide mechanism is also arranged at the connection between the injection polymer body and the connecting sleeve, an injection polymer inlet is arranged at the top of the rotating guide mechanism, and the rotating guide mechanism is used to block or open the injection polymer inlet;

[0007] An eccentric plug is also provided inside the eccentric injection channel, a connecting rod is provided at the blocking end of the eccentric plug, a throttling body is provided at the end of the connecting rod, and the throttling body drives the connecting rod through the eccentric plug to move up and down between the injection inlet and the injection outlet.

[0008] Further preferably, the rotary guide mechanism comprises a rotary guide body arranged at the connection between the injection body and the connecting sleeve, the bottom of the rotary guide body is connected to the driving end of the driving motor, and the driving motor is fixedly connected to the inside of the connecting sleeve.

[0009] Further preferably, arc-shaped protrusions having the same size as the injection inlet are symmetrically arranged on the surface of the rotating guide body.

[0010] Further preferably, the eccentric plug includes an eccentric plug shell arranged inside the eccentric dispensing channel, the eccentric plug shell is connected to the inside of the eccentric dispensing channel by a rotating connecting block, an adjusting shaft is penetrated inside the eccentric plug shell, a connecting hole is also provided at the bottom of the eccentric plug shell, an adjusting mechanism is connected to one end of the adjusting shaft close to the upper joint, and the other end of the adjusting shaft passes through the connecting hole and is connected to the connecting rod.

[0011] Further preferably, the connection between the connecting rod and the throttle body has a smooth transition, and the connecting rod and the throttle body are made in one piece.

[0012] Further preferably, a throttling core shaft is arranged inside the throttling body, and a plurality of shuttle-shaped structures are evenly arranged on the surface of the throttling core shaft along the axial direction.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, by arranging a plurality of eccentric injection channels inside the polymer injection body, when in use, the eccentric plugger inside the eccentric injection channel and the rotary guide mechanism at the polymer injection inlet can be used to block or open the polymer injection inlet and adjust the polymer injection amount. This not only increases the efficiency of polymer injection, but also allows the polymer injection amount to be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the overall structure of the utility model;

[0016] In the figure: 1. upper joint; 2. injection body; 3. straightening body; 4. connecting sleeve; 5. lower joint; 6. eccentric injection channel; 7. adjusting shaft; 8. eccentric plug housing; 9. eccentric plug; 10. rotating connecting block; 11. connecting hole; 12. injection outlet; 13. connecting rod; 14. throttling body; 15. injection inlet; 16. rotating guide body; 17. driving motor. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 , the utility model provides a technical solution:

[0019] A novel injection and production device comprises an injection polymer body 2, an upper joint 1 is connected to the top of the injection polymer body 2, at least one centralizing body 3 and a symmetrically arranged eccentric injection channel 6 are also arranged inside the injection polymer body 2, an injection polymer outlet 12 is also arranged at a position corresponding to the eccentric injection channel 6 on the surface of the injection polymer body 2, a lower joint 5 is connected to the bottom of the injection polymer body 2 through a connecting sleeve 4, and a rotary guide mechanism is also arranged at the connection between the injection polymer body 2 and the connecting sleeve 4, an injection polymer inlet 15 is arranged on the top of the rotary guide mechanism, and the rotary guide mechanism is used to block or open the injection polymer inlet 15;

[0020] An eccentric plugger 9 is also provided inside the eccentric injection channel 6. A connecting rod 13 is provided at the blocking end of the eccentric plugger 9. A throttling body 14 is provided at the end of the connecting rod 13. The throttling body 14 drives the connecting rod 13 through the eccentric plugger 9, and then moves up and down between the injection inlet 15 and the injection outlet 12.

[0021] In the utility model, the rotary guide mechanism includes a rotary guide body 16 disposed at the connection between the injection polymer body 2 and the connecting sleeve 4, the bottom of the rotary guide body 16 is connected to the driving end of the driving motor 17, and the driving motor 17 is fixedly connected to the inside of the connecting sleeve 4. The surface of the rotary guide body 16 is symmetrically provided with arc-shaped protrusions of the same size as the injection polymer inlet 15.

[0022] In the utility model, the eccentric plug 9 includes an eccentric plug shell 8 arranged inside the eccentric dispensing channel 6, the eccentric plug shell 8 is connected to the inside of the eccentric dispensing channel 6 by rotating the connecting block 10, an adjusting shaft 7 is penetrated inside the eccentric plug shell 8, a connecting hole 11 is also provided at the bottom of the eccentric plug shell 8, an adjusting mechanism is connected to one end of the adjusting shaft 7 close to the upper joint 1, and the other end of the adjusting shaft 7 penetrates the connecting hole 11 and is connected to the connecting rod 13.

[0023] In the utility model, the connection between the connecting rod 13 and the throttle body 14 is smoothly transitioned, and the connecting rod 13 and the throttle body 14 are made in one piece. A throttle core shaft is arranged inside the throttle body 14, and a plurality of shuttle-shaped structures are evenly arranged on the surface of the throttle core shaft along the axial direction.

[0024] Embodiment 1: When in use, first connect the adjusting shaft 7 to the adjusting mechanism. When connected, the adjusting mechanism passes through the upper joint 1 and enters the eccentric injection channel 6 inside the injection body 2 to connect with the adjusting shaft 7 inside the eccentric plug 9. The adjusting shaft 7 can be controlled to rotate forward and reverse through the adjusting mechanism. When rotating forward, the adjusting shaft 7 drives the connecting rod 13 to rotate forward, thereby driving the throttling body 14 at the end of the connecting rod 13 to move upward. At this time, the space between the injection inlet 15 and the injection outlet 12 increases, the pressure difference decreases, and the injection amount of the polymer decreases. When reversing, the adjusting shaft 7 drives the connecting rod 13 to reverse, thereby driving the throttling body 14 at the end of the connecting rod 13 to move downward. At this time, the space between the injection inlet 15 and the injection outlet 12 decreases, the pressure difference increases, and the injection amount of the polymer increases, thereby finally achieving the function of adjusting the injection amount of the polymer.

[0025] At the same time, when in use, the driving motor 17 is first used to drive the rotating guide body 16 to rotate. The driving motor 17 adopts a motor that can control the rotation angle, such as a stepping motor, to ensure that the driving motor 17 can only rotate 90° each time, whether it is forward or reverse rotation, so that the driving motor 17 drives the rotating guide body 16 to rotate once, and the arc-shaped protrusion symmetrically arranged on the surface of the rotating guide body 16 can be connected or separated with the injection inlet 15. When the driving motor 17 drives the rotating guide body 16 to rotate once, the arc-shaped protrusion is connected with the injection inlet 15, and the injection inlet 15 is closed at this time, and the polymer cannot flow into the injection inlet 15; when the driving motor 17 drives the rotating guide body 16 to rotate again, the arc-shaped protrusion is separated from the injection inlet 15, and the injection inlet 15 is opened at this time, and the polymer flows into the injection inlet 15 normally. The overall injection amount of the polymer can be increased by the action of multiple injection inlets 15, the eccentric injection channel 6 and the injection outlet 12, and in an emergency, the injection inlet 15 can be closed by the rotating guide mechanism to cut off the injection of the polymer from the source.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel injection-production device, comprising an injection-polymerization body (2), characterized in that: The top of the polymer injection body (2) is connected to an upper joint (1), at least one centralizing body (3) and a symmetrically arranged eccentric injection channel (6) are also arranged inside the polymer injection body (2), a polymer injection outlet (12) is also arranged at a position on the surface of the polymer injection body (2) corresponding to the eccentric injection channel (6), the bottom of the polymer injection body (2) is connected to a lower joint (5) via a connecting sleeve (4), and a rotary guide mechanism is also arranged at the connection between the polymer injection body (2) and the connecting sleeve (4), a polymer injection inlet (15) is arranged at the top of the rotary guide mechanism, and the rotary guide mechanism is used to block or open the polymer injection inlet (15); An eccentric plug (9) is also provided inside the eccentric injection channel (6); a connecting rod (13) is provided at the blocking end of the eccentric plug (9); a throttling body (14) is provided at the end of the connecting rod (13); the throttling body (14) drives the connecting rod (13) through the eccentric plug (9) to move up and down between the injection inlet (15) and the injection outlet (12).

2. A novel injection-production device according to claim 1, characterized in that: The rotary guide mechanism comprises a rotary guide body (16) arranged at the connection between the injection molding body (2) and the connecting sleeve (4), the bottom of the rotary guide body (16) being connected to the driving end of a driving motor (17), and the driving motor (17) being fixedly connected to the inside of the connecting sleeve (4).

3. A novel injection-production device according to claim 2, characterized in that: The surface of the rotating guide body (16) is symmetrically provided with arc-shaped protrusions of the same size as the injection inlet (15).

4. A novel injection-production device according to claim 1, characterized in that: The eccentric plug (9) comprises an eccentric plug housing (8) arranged inside the eccentric dispensing channel (6); the eccentric plug housing (8) is connected to the inside of the eccentric dispensing channel (6) by rotating a connecting block (10); an adjusting shaft (7) is provided through the inside of the eccentric plug housing (8); a connecting hole (11) is further provided at the bottom of the eccentric plug housing (8); an adjusting mechanism is connected to one end of the adjusting shaft (7) close to the upper joint (1); and the other end of the adjusting shaft (7) passes through the connecting hole (11) and is connected to a connecting rod (13).

5. A novel injection-production device according to claim 1, characterized in that: The connection between the connecting rod (13) and the throttle body (14) has a smooth transition, and the connecting rod (13) and the throttle body (14) are made in one piece.

6. A novel injection-production device according to claim 1, characterized in that: A throttling core shaft is arranged inside the throttling body (14), and a plurality of shuttle-shaped structures are evenly arranged on the surface of the throttling core shaft along the axial direction.

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