CN220167915U

CN220167915U - Sand-proof screen pipe

Info

Publication number: CN220167915U
Application number: CN202321285031.7U
Authority: CN
Inventors: 李宁; 刘甲明; 杨振铎
Original assignee: Shandong Yuanzhuo Petroleum Technology Co ltd
Current assignee: Shandong Yuanzhuo Petroleum Technology Co ltd
Priority date: 2023-05-25
Filing date: 2023-05-25
Publication date: 2023-12-12
Anticipated expiration: 2033-05-25

Abstract

The utility model discloses a sand control screen pipe, which relates to the technical field of screen pipes and comprises the following components: body, connector and wearing layer, the discharge opening has been seted up to the inside discharge opening that has seted up of body, the inside first filter screen that is provided with of body, body both sides all are connected with the connecting pipe. This sand control screen pipe, dock through the bell mouth with body one side conical connector and connecting pipe one end, the conical shape of two is more convenient to dock, the protruding head of first connecting block one side can enter into the inside recess of second connecting block, carry out slight spacing to body and connecting pipe, the draw-in groove of first connecting block one side can correspond with the position of fixture block this moment, accessible rotation threaded rod carries out screw drive with the connecting plate, the connecting plate can not take place to rotate under the restriction of gag lever post, the connecting plate can drive the fixture block and enter into in the draw-in groove of first connecting block one side when removing, at this moment body and connecting pipe will not take place the separation, can input oil in the body.

Description

Sand-proof screen pipe

Technical Field

The utility model relates to the technical field of sieve tubes, in particular to a sand control sieve tube.

Background

Under the general exploitation conditions, the oil well sand production is extremely harmful, in order to prevent the oil well sand production, on one hand, the well cementation and well completion modes are properly selected according to the oil layer and the oil well conditions, reasonable exploitation measures are formulated, the production pressure difference is controlled, the seepage speed is limited, the management of the sand production layer oil well is enhanced, and the induced flow measures of strong pumping are avoided as much as possible; on the other hand, according to the requirements of oil layer and exploitation process, adopting corresponding sand prevention process technology to ensure the normal production of oil well. The sand control screen is a tool commonly used in sand control construction, and sand in petroleum can be filtered through the sand control pipe.

In order to prevent sand production of an oil well, a sand control screen pipe is required to be installed during oil well exploitation, petroleum in the oil well can be filtered through the sand control screen pipe, when an existing sand control screen pipe is connected with a petroleum pipe, the existing sand control screen pipe is required to be connected through a flange plate, hole sites of the existing sand control screen pipe and the existing sand control screen pipe are required to be aligned when the existing sand control screen pipe is connected with the petroleum pipe, then bolts and threads are used for fixing the existing sand control screen pipe, and as a positioning component is not installed on the flange plate, the hole sites are difficult to be aligned rapidly during connection, and installation of the existing sand control screen pipe is inconvenient.

Disclosure of Invention

The utility model aims to provide a sand control screen pipe so as to solve the problem that the existing sand control screen pipe proposed by the background art is inconvenient to install.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a sand control screen comprising: the pipe comprises a pipe body, a connecting port and a wear-resistant layer, wherein a discharging hole is formed in the pipe body, a first filter screen is arranged in the pipe body, and connecting pipes are connected to two sides of the pipe body;

the connecting device comprises a connecting port, a connecting pipe, a connecting rod, a threaded rod, a first connecting block, a second connecting block and a limiting rod, wherein the connecting port is formed in the outer side of the connecting port, the connecting pipe penetrates through the outer side of the connecting port, the first connecting block is fixedly connected with the first connecting block in a welded mode, the protruding head is fixedly connected with the outer side of the protruding head, the limiting rod is fixedly connected with the second connecting block in a welded mode, the connecting plate is fixedly connected with the outer side of the limiting rod in a penetrating mode, and the threaded rod is connected with the inner side of the connecting plate in a threaded mode.

Preferably, a clamping block is fixedly welded on one side of the connecting plate, the outer side of the clamping block is connected with the first connecting block in a penetrating mode, and one side of the second connecting block is fixedly welded with the pipe body.

Preferably, one end of the threaded rod is movably connected with the second connecting block through a bearing, and a sealing block is fixedly bonded to one side of the connecting pipe.

Preferably, the outside of the sealing block is connected with the pipe body in a penetrating way, and one end of the connecting pipe is provided with a conical groove matched with the connecting port.

Preferably, one side of the wear-resistant layer is connected with the first filter screen, and one side of the first filter screen is fixedly bonded with the second filter layer through the connecting block.

Preferably, the inner wall of the pipe body is connected with a corrosion-resistant layer.

Compared with the prior art, the sand control screen pipe has the beneficial effects that: the conical connecting port on one side of the pipe body is abutted with the conical hole at one end of the connecting pipe, the conical shape of the connecting port on one side of the pipe body and the conical hole at one end of the connecting pipe are more convenient to butt joint, the protruding head on one side of the first connecting block can enter the groove inside the second connecting block, the pipe body and the connecting pipe are slightly limited, the clamping groove on one side of the first connecting block corresponds to the position of the clamping block, the threaded rod and the connecting plate are driven by the accessible rotation, the connecting plate cannot rotate under the limit of the limiting rod, the clamping block can be driven by the connecting plate to enter the clamping groove on one side of the first connecting block when the connecting plate moves, at the moment, the pipe body and the connecting pipe cannot be separated, petroleum can be input into the pipe body, the sand-preventing sieve tube can be conveniently connected with the oil pipe through the operation, and petroleum can be conveniently filtered.

1. In order to prevent sand from being discharged from an oil well, a sand control screen pipe is required to be installed during oil exploitation, petroleum in the oil well can be filtered through the sand control screen pipe, when a pipe body and a connecting pipe are connected and installed, a conical connecting port on one side of the pipe body is connected with a conical hole at one end of the connecting pipe, the conical connecting port and the conical connecting pipe are more conveniently connected, a protruding head on one side of a first connecting block can enter a groove inside a second connecting block, slight limiting is carried out on the pipe body and the connecting pipe, a clamping groove on one side of the first connecting block corresponds to the position of a clamping block, thread transmission is carried out on a threaded rod and the connecting plate through the clamping groove, the connecting plate cannot rotate under the limit of a limiting rod, a clamping block can be driven to enter the clamping groove on one side of the first connecting block when the connecting plate moves, petroleum can be input into the pipe body, the sand control screen pipe can be conveniently connected and installed through the operation, and petroleum can be conveniently filtered.

2. In order to prevent sand production of an oil well, a sand control screen is required to be installed during oil well exploitation, petroleum in the oil well can be filtered through the sand control screen, the wear-resisting layer is sprayed on the outer side of the first filter screen, the first filter screen can be subjected to wear-resisting treatment, sand in the petroleum is prevented from being damaged under long-term friction, the service life of the first filter screen is prolonged, the second filter layer is arranged on one side of the first filter screen, corrosion resistance of the second filter layer is good, sand in the petroleum can be filtered with higher precision, the corrosion-resisting layer is arranged in the pipe body, the inner wall of the pipe body can be subjected to corrosion-resisting treatment, corrosion of the petroleum in the pipe body is prevented, and the use of the pipe body is affected.

Drawings

FIG. 1 is a schematic front view of the present utility model;

FIG. 2 is a schematic front cross-sectional view of a first connector block according to the present utility model;

FIG. 3 is a schematic right-side cross-sectional view of the pipe body of the present utility model.

In the figure: 1. a tube body; 2. a discharge hole; 3. a first filter screen; 4. a connecting pipe; 5. a connection port; 6. a sealing block; 7. a first connection block; 8. a nose; 9. a second connection block; 10. a limit rod; 11. a connecting plate; 12. a threaded rod; 13. a clamping block; 14. a wear-resistant layer; 15. a second filter layer; 16. and a corrosion resistant layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-3, the present utility model provides a technical solution: a sand control screen comprising: body 1, connector 5 and wearing layer 14, body 1 inside has seted up discharge opening 2, and body 1 inside is provided with first filter screen 3, and body 1 both sides all are connected with connecting pipe 4:

the outer side of the connecting port 5 is penetrated with the connecting pipe 4, a first connecting block 7 is fixedly welded on the outer side of the connecting pipe 4, a raised head 8 is fixedly adhered on one side of the first connecting block 7, a second connecting block 9 is connected on the outer side of the raised head 8, a limiting rod 10 is fixedly welded on one side of the second connecting block 9, a connecting plate 11 is fixedly penetrated on the outer side of the limiting rod 10, and a threaded rod 12 is connected inside the connecting plate 11 in a threaded manner; a clamping block 13 is fixedly welded on one side of the connecting plate 11, the outer side of the clamping block 13 is connected with the first connecting block 7 in a penetrating way, and one side of the second connecting block 9 is fixedly welded with the pipe body 1; one end of the threaded rod 12 is movably connected with the second connecting block 9 through a bearing, and one side of the connecting pipe 4 is fixedly adhered with a sealing block 6; the outside of the sealing block 6 is connected with the pipe body 1 in a penetrating way, one end of the connecting pipe 4 is provided with a conical groove matched with the connecting port 5, the raised head 8 and the second connecting block 9 form a clamping structure, the connecting plate 11 and the threaded rod 12 form a threaded transmission structure, and the connecting port 5 and the raised head 8 are made of rubber structures.

In particular, in order to prevent sand from being produced from an oil well, a sand control screen pipe is required to be installed during oil well exploitation, oil in the oil well can be filtered through the sand control screen pipe, when the pipe body 1 and the connecting pipe 4 are connected and installed, the conical connecting port 5 at one side of the pipe body 1 is in butt joint with the conical hole at one end of the connecting pipe 4, the conical shapes of the connecting port 5 and the connecting pipe are more convenient to butt joint, the connecting port 5 made of rubber material can seal the joint between the connecting pipe 4 and the connecting port 5 after the butt joint is completed, and meanwhile, the annular sealing block 6 at one end of the connecting pipe 4 can also be in butt joint with the annular sealing groove at one side of the pipe body 1 when the connecting pipe 4 and the connecting port 5 are connected, so that the sealing effect is improved;

after the butt joint is finished, the protruding head 8 on one side of the first connecting block 7 can enter the groove in the second connecting block 9, the pipe body 1 and the connecting pipe 4 are slightly limited, the clamping groove on one side of the first connecting block 7 corresponds to the position of the clamping block 13, the threaded rod 12 and the connecting plate 11 can be driven to be in threaded transmission through rotation, the connecting plate 11 cannot rotate under the limitation of the limiting rod 10, the connecting plate 11 can drive the clamping block 13 to enter the clamping groove on one side of the first connecting block 7 when moving, at the moment, the pipe body 1 and the connecting pipe 4 cannot be separated, petroleum can be input into the pipe body 1, the sand control screen pipe and the oil pipe can be conveniently connected and installed through the operation, and petroleum can be conveniently filtered.

Referring to fig. 3, one side of the wear-resistant layer 14 is connected with the first filter screen 3, and a second filter layer 15 is fixedly bonded on one side of the first filter screen 3 through a connecting block; the inner wall of the pipe body 1 is connected with a corrosion-resistant layer 16, the material of the wear-resistant layer 14 is a metal ceramic coating, the material of the second filter layer 15 is a metal fiber sintered felt, and the material of the corrosion-resistant layer 16 is polytetrafluoroethylene.

In particular, in order to prevent sand from flowing out of an oil well, a sand control screen is required to be installed during oil well exploitation, petroleum in the oil well can be filtered through the sand control screen, the wear-resistant layer 14 is sprayed on the outer side of the first filter screen 3, the wear-resistant layer 14 is made of metal ceramic particles, the friction coefficient of the metal ceramic particles is low, the hardness is high, good friction resistance performance is achieved, the first filter screen 3 can be subjected to wear-resistant treatment, the first filter screen 3 is prevented from being damaged under the long-term friction of sand in the petroleum, the service life of the first filter screen 3 is prolonged, the second filter layer 15 is arranged on one side of the first filter screen 3, the second filter layer 15 is made of metal fiber sintered felt, and the metal fiber sintered felt forms pore gradients through different pore diameter layers, so that extremely high filtering precision can be controlled, corrosion resistance and good heat resistance performance can be achieved, and higher-precision filtering can be achieved on sand in the petroleum;

through setting up corrosion-resistant layer 16 in the inside of body 1, corrosion-resistant layer 16 is made by polytetrafluoroethylene, and polytetrafluoroethylene is high temperature resistant, and corrosion resistance is strong, can carry out corrosion-resistant treatment to the inner wall of body 1, prevents that the oil from causing the corruption to the inside of body 1, influences the use of body 1, so can be convenient for protect sand control screen's filter screen and inner wall through above-mentioned operation, extension sand control screen's life.

To sum up: when the sand control screen is used, firstly, the pipe body 1 and the connecting pipe 4 are connected and installed, the connecting pipe 4 can convey petroleum into the pipe body 1, the petroleum can be filtered through the first filter screen 3 and the second filter layer 15, and the filtered petroleum can flow out through the discharge hole 2, so that the sand control screen is characterized, and the content which is not described in detail in the specification belongs to the prior art known to the expert in the field.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A sand control screen comprising: body (1), connector (5) and wearing layer (14), discharge hole (2) have been seted up to body (1) inside, body (1) inside is provided with first filter screen (3), body (1) both sides all are connected with connecting pipe (4), its characterized in that:

the connecting port (5) outside runs through with connecting pipe (4), connecting pipe (4) outside welded fastening has first connecting block (7), first connecting block (7) one side bonding is fixed with protruding head (8), protruding head (8) outside is connected with second connecting block (9), second connecting block (9) one side welded fastening has gag lever post (10), connecting plate (11) are run through in gag lever post (10) outside, connecting plate (11) internal thread connection has threaded rod (12).

2. The sand control screen as recited in claim 1 wherein: clamping blocks (13) are fixedly welded on one side of the connecting plate (11), the outer sides of the clamping blocks (13) are connected with the first connecting blocks (7) in a penetrating mode, and one side of the second connecting block (9) is fixedly welded with the pipe body (1).

3. The sand control screen as recited in claim 2 wherein: one end of the threaded rod (12) is movably connected with the second connecting block (9) through a bearing, and one side of the connecting pipe (4) is fixedly bonded with the sealing block (6).

4. The sand control screen as recited in claim 3 wherein: the outside of the sealing block (6) is connected with the pipe body (1) in a penetrating way, and one end of the connecting pipe (4) is provided with a conical groove matched with the connecting port (5).

5. The sand control screen as recited in claim 1 wherein: one side of the wear-resistant layer (14) is connected with the first filter screen (3), and one side of the first filter screen (3) is fixedly bonded with the second filter layer (15) through a connecting block.

6. The sand control screen as recited in claim 5 wherein: the inner wall of the pipe body (1) is connected with a corrosion-resistant layer (16).