CN219119222U

CN219119222U - Oil recovery water injection filling adjusting device

Info

Publication number: CN219119222U
Application number: CN202320274870.2U
Authority: CN
Inventors: 张淼峰; 李金海; 李海燕; 潘悦文; 曹堂路; 代学金; 谭燕
Original assignee: China National Petroleum Corp
Current assignee: China National Petroleum Corp
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-06-02
Anticipated expiration: 2033-02-22

Abstract

The utility model relates to an oil extraction water injection filling adjusting device which comprises a stratum and a sealing block, wherein a concrete filling layer is poured in the stratum, an embedded pipeline is arranged in the concrete filling layer, the top of the embedded pipeline extends to the upper side of the concrete filling layer and is fixedly connected with a fixing flange, and an asbestos gasket is arranged between the fixing flange and the concrete filling layer. The utility model has the beneficial effects that the first sealing protection is formed between the embedded pipeline and the concrete filling layer through the asbestos gasket, the second sealing protection is formed between the connecting plate and the sealing block through the sealing gasket, the third sealing protection is formed by the shape matching between the sealing block and the embedded pipeline, and the oil gas well and the outside form opposite sealing through the three sealing protection, so that the situation of unbalanced pressure inside the oil gas well can be effectively prevented, the working purposes of reducing potential safety hazards and improving the acquisition efficiency are achieved, and the operation quality and the use efficiency are greatly improved compared with the traditional device.

Description

Oil recovery water injection filling adjusting device

Technical Field

The utility model relates to the technical field of oil well water injection devices, in particular to an oil extraction water injection filling adjusting device.

Background

The water injection well is mainly used for reducing the formation pressure of the self-flowing well in the later period of oil field exploitation, and if the crude oil can not flow out through the formation pressure of the self-flowing well, the formation pressure is required to be increased again in a water injection mode to assist the crude oil to flow out of the formation;

and the possible collapse risk caused by the outflow of crude oil of the original stratum blank shell is also supplemented by utilizing the water injection mode.

The existing oil well water injection device is in use, the situation of loose sealing exists generally, the phenomenon of unbalanced pressure can occur when water is injected into the well, potential safety hazards are easy to cause, inconvenience is brought to subsequent collection, and practical application and operation are not facilitated.

Disclosure of Invention

In view of the foregoing problems in the prior art, a primary object of the present utility model is to provide an oil recovery water injection filling adjustment device.

The technical scheme of the utility model is as follows: the utility model provides an oil recovery water injection filling adjusting device, includes stratum and sealing block, the inside of stratum has been pour the concrete filling layer, the inside of concrete filling layer is provided with pre-buried pipeline, the top of pre-buried pipeline extends to the top and the fixedly connected with mounting flange of concrete filling layer, be provided with the asbestos packing ring between mounting flange and the concrete filling layer, the inside equidistance of concrete filling layer is provided with expansion bolts, mounting flange passes through expansion bolts realization and is connected with the concrete filling layer.

As a preferred implementation mode, the inside equidistance sliding connection of pre-buried pipeline has the slip limiting plate, the inside of slip limiting plate has the water injection pipe through the mounting hole equidistance welding of seting up in advance.

As a preferred implementation mode, a connecting plate is fixedly connected between the tops of the water injection pipes, screw rods are fixedly connected to the tops of the connecting plates at equal intervals, and sealing gaskets are sleeved between the outer sides of the screw rods and positioned at the tops of the connecting plates.

As a preferred implementation mode, the top of the sealing block is fixedly connected with a connecting flange, the top of the fixing flange is fixedly connected with connecting screws at equal intervals, and the connecting flange is connected with the fixing flange through the connecting screws.

As a preferred implementation mode, the sealing block is arranged in a conical shape, and the top of the embedded pipeline is arranged to be a bell mouth matched with the sealing block for use.

As a preferred implementation mode, the top of the sealing block is provided with a water injection joint, the inside of the sealing block is provided with a water guide groove, and the water guide groove is respectively communicated with the water injection pipe and the water injection joint.

Compared with the prior art, the utility model has the advantages and positive effects that:

according to the utility model, the first sealing protection is formed between the embedded pipeline and the concrete filling layer through the asbestos gasket, the second sealing protection is formed between the connecting plate and the sealing block through the sealing gasket, the third sealing protection is formed by the shape matching between the sealing block and the embedded pipeline, and the oil gas well and the outside form opposite sealing through the three sealing protection, so that the situation of unbalanced pressure in the oil gas well can be effectively prevented, the working purposes of reducing potential safety hazards and improving the acquisition efficiency are achieved, the working quality and the use efficiency are greatly improved compared with the traditional device, and the working quality and the use efficiency are greatly improved compared with the traditional device.

Drawings

FIG. 1 is a schematic diagram showing the connection state of a sealing block and a water injection pipe of the present utility model;

FIG. 2 is a schematic diagram showing the connection state of a water injection pipe and a connecting plate according to the present utility model;

FIG. 3 is a cross-sectional view of the present utility model in an installed state;

fig. 4 is a cross-sectional view at a in fig. 3.

Legend description: 1. a formation; 2. a concrete filling layer; 3. embedding a pipeline; 4. a fixed flange; 5. an asbestos washer; 6. an expansion bolt; 7. sliding limiting plates; 8. a water injection pipe; 9. a connecting plate; 10. a screw rod; 11. a sealing gasket; 12. a sealing block; 13. a connecting flange; 14. a connecting screw; 15. and (5) a water injection joint.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model will be further described with reference to the drawings and the specific embodiments

Example 1

As shown in fig. 1 to 4, the present utility model provides a technical solution: including stratum 1 and sealing block 12, the inside of stratum 1 has been pour concrete filling layer 2, and the inside of concrete filling layer 2 is provided with pre-buried pipeline 3, and the top of pre-buried pipeline 3 extends to the top and fixedly connected with flange 4 of concrete filling layer 2, is provided with asbestos packing 5 between flange 4 and the concrete filling layer 2, and the inside equidistance of concrete filling layer 2 is provided with expansion bolts 6, and flange 4 passes through expansion bolts 6 realization and is connected with concrete filling layer 2.

In this embodiment, through setting up concrete filling layer 2 on stratum 1, can install pre-buried pipeline 3 better to make pre-buried pipeline 3 can be connected with concrete filling layer 2 through mounting flange 4, and through setting up asbestos packing 5 then can prevent well that there is the clearance in junction between them, thereby the condition such as leakage gas leakage that causes realizes pre-buried pipeline 3 and the first sealed protection of concrete filling layer 2.

Example 2

As shown in fig. 1-4, the inside of the embedded pipeline 3 is equidistantly and slidably connected with a sliding limiting plate 7, the inside of the sliding limiting plate 7 is equidistantly welded with a water injection pipe 8 through a pre-opened mounting hole, and the water injection pipe 8 can be prevented from shaking in the water injection process by arranging the sliding limiting plate 7, so that the bolt is loosened;

wherein, a connecting plate 9 is fixedly connected between the tops of the water injection pipes 8, screw rods 10 are fixedly connected at equal intervals to the tops of the connecting plate 9, and a sealing gasket 11 is sleeved between the outer sides of the screw rods 10 and positioned at the top of the connecting plate 9; the top of the sealing block 12 is provided with a water injection joint 15, the inside of the sealing block 12 is provided with a water guide groove which is respectively communicated with the water injection pipe 8 and the water injection joint 15, the sealing block 12 can introduce water flow into the water injection pipe 8 by connecting the connecting plate 9 with the sealing block 12, and the sealing washer 11 is arranged, so that water flow can be prevented from overflowing, and a second sealing protection is formed;

wherein, the top of the sealing block 12 is fixedly connected with a connecting flange 13, the top of the fixed flange 4 is fixedly connected with connecting screws 14 at equal intervals, and the connecting flange 13 is connected with the fixed flange 4 through the connecting screws 14; the sealing block 12 is conical, the top of the embedded pipeline 3 is provided with a horn mouth matched with the sealing block 12, and the sealing block 12 and the embedded pipeline 3 are provided with matched shapes, so that the sealing block 12 and the embedded pipeline 3 can be sealed while the sealing block 12 is fixed, and a third to sealing protection is formed.

Working principle:

as shown in fig. 1-4, in actual use, firstly, a pipeline is opened through a turning machine, an embedded pipeline 3 is pressed into the opened pipeline, concrete is poured outside the embedded pipeline 3, then an expansion bolt 6 can be driven into the concrete filling layer 2, a fixing flange 4 is fixed through the expansion bolt 6, then a water injection pipe 8 and a sliding limiting plate 7 are inserted into the embedded pipeline 3, a connecting plate 9 is connected with a sealing block 12 through a screw rod 10, then the sealing block 12 is connected with the fixing flange 4 through a connecting screw 14, a first sealing protection is formed between the embedded pipeline 3 and the concrete filling layer 2 through an asbestos washer 5, a second sealing protection is formed between the sealing block 12 and the sealing block 9 through a sealing washer 11, a third sealing protection is formed through the shape cooperation between the sealing block 12 and the embedded pipeline 3, and the inside of an oil-gas well and the outside form a relative sealing protection, thus the situation of unbalanced pressure inside the oil-gas well can be effectively prevented, the working purposes of reducing potential safety hazards and improving the collection efficiency are achieved, and the quality and the working efficiency are greatly improved compared with the traditional device.

Finally, it should be noted that: the embodiments described above are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. Oil recovery water injection filling adjusting device, including stratum (1) and sealing block (12), its characterized in that: the inside of stratum (1) has been pour concrete filling layer (2), the inside of concrete filling layer (2) is provided with pre-buried pipeline (3), the top of pre-buried pipeline (3) extends to the top and fixedly connected with mounting flange (4) of concrete filling layer (2), be provided with asbestos packing (5) between mounting flange (4) and concrete filling layer (2), the inside equidistance of concrete filling layer (2) is provided with expansion bolts (6), mounting flange (4) are realized being connected with concrete filling layer (2) through expansion bolts (6).

2. The oil recovery water injection filling adjusting device according to claim 1, wherein: the inside equidistance sliding connection of pre-buried pipeline (3) has slip limiting plate (7), the inside of slip limiting plate (7) has water injection pipe (8) through the mounting hole equidistance welding of seting up in advance.

3. The oil recovery water injection filling adjusting device according to claim 2, wherein: the water injection pipe is characterized in that a connecting plate (9) is fixedly connected between the tops of the water injection pipes (8), screw rods (10) are fixedly connected to the tops of the connecting plate (9) at equal intervals, and sealing gaskets (11) are sleeved between the outsides of the screw rods (10) and located at the tops of the connecting plate (9).

4. The oil recovery water injection filling adjusting device according to claim 1, wherein: the top fixedly connected with flange (13) of sealing piece (12), the equidistant fixedly connected with connecting screw (14) in top of flange (4), flange (13) are connected with flange (4) through connecting screw (14).

5. The oil recovery water injection filling adjusting device according to claim 1, wherein: the sealing block (12) is conical, and the top of the embedded pipeline (3) is provided with a horn mouth matched with the sealing block (12).

6. The oil recovery water injection filling adjusting device according to claim 1, wherein: the top of sealing block (12) is provided with water injection joint (15), the inside of sealing block (12) is provided with the guiding gutter, and the guiding gutter communicates with each other with water injection pipe (8) and water injection joint (15) respectively.