CN210049876U

CN210049876U - Double-pipe water injection constant pressure type sieve tube

Info

Publication number: CN210049876U
Application number: CN201920483423.1U
Authority: CN
Inventors: 李晓明
Original assignee: Qigihar Asia Sheng Machinery Manufacturing Co Ltd
Current assignee: Qigihar Asia Sheng Machinery Manufacturing Co Ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2020-02-11
Anticipated expiration: 2029-04-11

Abstract

The utility model discloses a double-barrelled water injection constant pressure formula screen pipe, including screen pipe main part, water pump, guard circle, first shunt, second shunt, outer tube, inner tube, dampproofing pad, outer tube screen pipe, compression packer, inner tube screen pipe, thread seal, fixing bolt, water injection pipe connecting block, screen pipe connecting block, rubber pad and water filling hole, the top outer wall bolt fixed connection of screen pipe main part has the water pump, the middle part outer wall of screen pipe main part is provided with the guard circle, the first shunt is fixed in the outer wall welding of the pump department of water pump, the second shunt is fixed in the outer wall welding of the pump department of water pump, the outer tube has been seted up to screen pipe main part outer wall, the inner wall of screen pipe main part has seted up the inner tube, the bottom bolt of outer tube has fixed outer tube screen pipe, the bottom of inner tube cup joints and is fixed with the inner tube screen, and the bottom end of the inner pipe is in threaded connection with a plug.

Description

Double-pipe water injection constant pressure type sieve tube

Technical Field

The utility model relates to an oil field layering water injection technical field, in particular to double-barrelled water injection constant pressure formula screen pipe.

Background

Along with the continuous development of industry, the demand of petroleum is higher and higher, the zonal injection technology of oil fields is also more and more important, and double-barrelled zonal injection string adopts binary channels alone water injection at present, and accessible water injection flow realizes ground real-time allotment of each layer flow in the pit, is applicable to well incline and two-layer zonal injection well that the interlaminar pressure difference is big, has solved the problem such as the separate injection well measure and adjust the degree of difficulty big, separate injection rate and interval percent of pass are low. However, most of the prior sieve tubes are connected through threads, and the sieve tubes are easy to rust under the moist environment at the bottom to cause the situation that the sieve tubes cannot be disassembled, so that the maintenance cost is increased, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-barrelled water injection constant pressure formula screen pipe to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the screen pipe comprises a screen pipe main body, a water pump, a protection ring, a first shunt pipe, a second shunt pipe, an outer pipe, an inner pipe, a moisture-proof pad, an outer pipe screen pipe, a compression packer, an inner pipe screen pipe, a thread plug, a fixing bolt, a water injection pipe connecting block, a screen pipe connecting block, a rubber pad and a water injection hole, wherein the top outer wall of the screen pipe main body is fixedly connected with the water pump through a bolt, the middle outer wall of the screen pipe main body is provided with the protection ring, the outer wall of a water pumping part of the water pump is fixedly welded with the first shunt pipe, the outer wall of the water pumping part of the water pump is fixedly welded with the second shunt pipe, the outer wall of the screen pipe main body is provided with the outer pipe, the inner wall of the screen pipe main body is provided with the inner pipe, the bottom end of the outer pipe, the water injection screen pipe is characterized in that a water injection pipe connecting block is arranged at the bottom of the outer pipe, a screen pipe connecting block is arranged at the top end of the outer pipe screen pipe, a fixing bolt is arranged between the water injection pipe connecting block and the screen pipe connecting block, and a water injection hole is formed in the top end of the outer pipe screen pipe.

As an optimized technical scheme of the utility model, the material of guard circle is the rubber material.

As an optimized technical scheme of the utility model, the upper and lower both ends of compression packer are provided with dampproofing pad.

As an optimized technical scheme of the utility model, the plug is provided with the unsintered tape with the inner tube position of being connected.

As an optimal technical scheme of the utility model, be provided with the rubber pad between water injection pipe connecting block and the screen pipe connecting block.

As an optimized technical scheme of the utility model, the inner wall and the outer wall of outer tube and inner tube all are scribbled dampproofing paint.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the setting through the reposition of redundant personnel water pipe makes the different oil reservoirs of injection that rivers can the level pressure, and fixing bolt is connected water injection pipe connecting block and screen pipe connection, and the connected mode is more simple high-efficient, and the setting of guard circle has avoided fixing bolt to avoid the rusty condition that can't dismantle of dying of causing underground, great improvement staff's in the pit work efficiency, also reduced the cost of maintenance and maintenance simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of a double-tube water injection constant pressure type sieve tube of the present invention.

Fig. 2 is a schematic side view of the constant pressure type screen pipe with double-pipe water injection.

Fig. 3 is an enlarged view of the area a in fig. 2 of the constant pressure type screen pipe with double-pipe water injection according to the present invention.

In the figure: 1. a screen pipe body; 2. a water pump; 3. a guard ring; 4. a first shunt pipe; 5. a second shunt pipe; 6. an outer tube; 7. an inner tube; 8. a moisture-proof pad; 9. an outer screen pipe; 10. compressing the packer; 11. an inner pipe screen pipe; 12. a raw material belt; 13. plugging with a thread; 14. fixing the bolt; 15. a water injection pipe connecting block 16 and a sieve pipe connecting block; 17. a rubber pad; 18. and (7) water injection holes.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a double-pipe water injection constant pressure type sieve tube comprises a sieve tube main body 1, a water pump 2, a protective ring 3, a first shunt pipe 4, a second shunt pipe 5, an outer pipe 6, an inner pipe 7, a moisture-proof pad 8, an outer pipe sieve tube 9, a compression packer 10, an inner pipe sieve tube 11, a raw material belt 12, a plug 13, a fixing bolt 14, a water injection pipe connecting block 15, a sieve tube connecting block 16, a rubber pad 17 and a water injection hole 18, wherein the water pump 2 is fixedly connected with the outer wall of the top of the sieve tube main body 1 through a bolt, the protective ring 3 is arranged on the outer wall of the middle of the sieve tube main body 1, the first shunt pipe 4 is fixedly welded on the outer wall of a water pumping part of the water pump 2, the second shunt pipe 5 is fixedly welded on the outer wall of the water pumping part of the water pump 2, the outer pipe 6 is arranged, the bottom of inner tube 7 cup joints and is fixed with inner tube screen pipe 11, be provided with compression packer 10 between outer tube screen pipe 9 and the inner tube screen pipe 11, 7 bottom threaded connection of inner tube have plug 13, 6 bottoms of outer tube are provided with water injection pipe connecting block 15, the top of outer tube screen pipe 9 is provided with screen pipe connecting block 16, be provided with fixing bolt 14 between water injection pipe connecting block 15 and the screen pipe connecting block 16, water injection hole 18 has been seted up on outer tube screen pipe 9 top.

In this embodiment, the material of the guard ring 3 is preferably rubber.

In this embodiment, preferably, the upper and lower ends of the compression packer 10 are provided with moisture-proof pads 8.

In this embodiment, preferably, a raw material belt 12 is disposed at a connection portion between the plug 13 and the inner tube 7.

In this embodiment, a rubber pad 17 is preferably disposed between the water injection pipe connecting block 15 and the screen connecting block 16.

In this embodiment, preferably, the inner wall and the outer wall of the outer tube 6 and the inner tube 7 are coated with moisture-proof paint.

It should be noted that, the utility model relates to a double-barrelled water injection constant pressure formula screen pipe, when using, at first the user is connected water injection pipe connecting block 15 and screen pipe connecting block 16 through fixing bolt 14, embolia the guard circle 3 of rubber material again with water injection pipe connecting block 15 and screen pipe connecting block periphery, the guard circle 3 can protect fixing bolt 14 to avoid the condition that the rust that the humidity caused dies can't be dismantled underground, rethread water pump 2, flow into outer tube 6 and inner tube 7 respectively through first shunt 4 and second shunt 5 with rivers, rivers are flowing into different oil reservoirs respectively through inner tube screen pipe 11 and outer tube screen pipe 9, wherein separate the rivers after inner tube screen pipe and the outer tube screen pipe filtration through compression packer 10.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a double-barrelled water injection constant pressure formula screen pipe, includes screen pipe main part (1), water pump (2), guard circle (3), first shunt (4), second shunt (5), outer tube (6), inner tube (7), dampproofing pad (8), outer tube screen pipe (9), compression packer (10), inner tube screen pipe (11), unsintered tape (12), plug (13), fixing bolt (14), water injection pipe connecting block (15), screen pipe connecting block (16), rubber pad (17) and water injection hole (18), its characterized in that: the sieve tube is characterized in that a water pump (2) is fixedly connected to the outer wall of the top of the sieve tube main body (1) through a bolt, a protective ring (3) is arranged on the outer wall of the middle of the sieve tube main body (1), a first shunt pipe (4) is welded and fixed to the outer wall of a pump water position of the water pump (2), a second shunt pipe (5) is welded and fixed to the outer wall of the pump water position of the water pump (2), an outer pipe (6) is arranged on the outer wall of the sieve tube main body (1), an inner pipe (7) is arranged on the inner wall of the sieve tube main body (1), an outer pipe sieve tube (9) is fixed to the bottom end of the outer pipe (6) through a bolt, an inner pipe sieve tube (11) is fixedly sleeved and connected to the bottom end of the inner pipe (7), a compression packer (10) is arranged between the outer pipe sieve tube (, the top of the outer pipe sieve tube (9) is provided with a sieve tube connecting block (16), a fixing bolt (14) is arranged between the water injection pipe connecting block (15) and the sieve tube connecting block (16), and the top of the outer pipe sieve tube (9) is provided with a water injection hole (18).

2. The screen pipe of claim 1, wherein the screen pipe comprises: the protection ring (3) is made of rubber.

3. The screen pipe of claim 1, wherein the screen pipe comprises: and the upper end and the lower end of the compression packer (10) are provided with moisture-proof pads (8).

4. The screen pipe of claim 1, wherein the screen pipe comprises: the connecting part of the plug (13) and the inner pipe (7) is provided with a thread seal tape (12).

5. The screen pipe of claim 1, wherein the screen pipe comprises: and a rubber pad (17) is arranged between the water injection pipe connecting block (15) and the sieve tube connecting block (16).

6. The screen pipe of claim 1, wherein the screen pipe comprises: and the inner walls and the outer walls of the outer pipe (6) and the inner pipe (7) are coated with moisture-proof paint.