CN113756761B

CN113756761B - But prefilter formula screen pipe

Info

Publication number: CN113756761B
Application number: CN202111213022.2A
Authority: CN
Inventors: 孙非; 张玉刚; 王明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2023-02-21
Anticipated expiration: 2041-10-19
Also published as: CN113756761A

Abstract

The invention relates to the technical field of sieve tubes, and discloses a prefiltable sieve tube which comprises a sieve tube, wherein the lower part of the sieve tube is fixedly connected with a reinforcing insertion tube, the outside of the sieve tube is provided with an outer reinforcing rib, the inside of the outside of the sieve tube is provided with a first screening hole, the inside of the sieve tube is movably sleeved with a pipeline base, and the outside of the pipeline base is fixedly connected with a sliding groove rod. This but prefilter formula screen pipe, through the outside fixedly connected with outside strengthening rib with the device screen pipe, can drive the outside strengthening rib and consolidate the screen pipe, install eight bracing pieces between every section outside strengthening rib simultaneously, can drive the position between two outside strengthening ribs and splice the injectly, can increase when the outside of device outside strengthening rib to the screen pipe is consolidated, the steadiness when increasing the device screen pipe use, when avoiding the device screen pipe to install inside the oil well below the kilometer, can avoid the too big problem that causes the extrusion damage to the screen pipe of pressure.

Description

But prefilter formula screen pipe

Technical Field

The invention relates to the technical field of sieve tubes, in particular to a prefiltable sieve tube.

Background

The main effect of the petroleum sieve tube is sand prevention, the different geological environments (lithology is different) of the oil well lead to different steel grade and type of the adopted sieve tube, and in the process of extracting the oil field below thousands of meters, the silt in the oil well needs to be filtered by the sieve tube, so that the prefilter type sieve tube is developed.

In the existing sieve tube, the common oil well sieve tube needs to extend to a distance of less than several kilometers, so that after the sieve tube is installed, oil can extrude the sieve tube, and the problems that the pressure is too high and the sieve tube is easily extruded and damaged by the pressure are caused; when simultaneously tentatively filtering the processing to screen pipe fluid, inside the unable small-size grit of avoiding is carried to the screen pipe, when small-size grit piles up too much, can cause the problem of extrusion damage to the screen pipe.

Disclosure of Invention

Aiming at the defects of the existing sieve tube capable of being prefiltered, the invention provides the sieve tube capable of being prefiltered, which has the advantages that the compression resistance outside the sieve tube is increased, oil liquid is conveniently driven to carry out secondary screening, the screening efficiency is increased, simultaneously, silt accumulated between the sieve tube and an inner side filter tube can be cleaned, the influence on oil liquid filtration caused by silt blockage is avoided, and the problems in the background art are solved.

The invention provides the following technical scheme: the utility model provides a but prefilter formula screen pipe, includes the screen pipe, the lower part fixedly connected with reinforcement intubate of screen pipe, the externally mounted of screen pipe has outside strengthening rib, first screening hole has been seted up to the screen pipe outside, the pipeline base has been cup jointed in the inside activity of screen pipe, the outside fixedly connected with chute pole of pipeline base, the inboard filter tube positioning jacket of outside fixedly connected with on pipeline base upper portion, inboard filter tube has been cup jointed in the outside activity on inboard filter tube positioning jacket upper portion, the externally mounted of inboard filter tube has the helical pipeline, the second screening hole has been seted up to the inboard of inboard filter tube, the inboard fixedly connected with inboard reinforcement jacket of inboard filter tube, the inboard collection pipeline that has cup jointed in the inside activity of inboard reinforcement jacket, the lower part fixedly connected with removable pin of inboard collection pipeline, the middle part fixedly connected with collection pipeline outside closing plate of pipeline base upper end, the inboard fixedly connected with movable positioning jacket of collection pipeline outside closing plate.

Preferably, the upper end of the reinforcing insertion pipe is thick, and the lower end of the reinforcing insertion pipe is thin, and the diameter of the upper opening of the reinforcing insertion pipe is smaller than that of the pipe base.

Preferably, the outside strengthening rib is at the outside equidistant distribution of screen pipe, and the interval of two adjacent strengthening ribs is ten centimetres, two install eight bracing pieces between the outside strengthening rib, the chamfer has been seted up in the outside of outside strengthening rib.

Preferably, the sieve tube is internally provided with a sliding groove, the sliding groove rod is movably sleeved inside the groove, and the outer side of the pipeline base is tightly attached to the inner wall of the sieve tube.

Preferably, the inner filter pipe can perform circular motion around the inner filter pipe positioning jacket, the outer side of the spiral pipeline is tightly attached to the inner wall of the sieve pipe, the spiral pipeline is in a spiral shape, and a gear motor is installed on one side of the upper portion of the inner filter pipe.

Preferably, the inner reinforcing jackets are arranged in the inner filtering pipe at equal intervals, the interval between two adjacent inner reinforcing jackets is twenty centimeters, the inner sides of the inner reinforcing jackets are circular, the inner collecting pipes are sequentially and movably sleeved in the inner reinforcing jackets, and the inner sides of the inner reinforcing jackets are tightly attached to the outer walls of the inner collecting pipes.

Preferably, the outer sealing plate of the collecting pipeline is tightly attached to the outer side of the lower part of the inner collecting pipeline, four movable pins are mounted on the lower part of the inner collecting pipeline, and the lower part of each movable pin is movably sleeved in the lower part of the movable positioning clamping sleeve.

Preferably, the outside of screen pipe and the outside of inboard filter tube have seted up first screening hole and second screening hole respectively, the aperture that the second screening hole was seted up is less than the diameter of silt.

Compared with the prior prefilter type sieve tube, the invention has the following beneficial effects:

1. this but prefiltering formula screen pipe, through tentatively carrying oil outside the oil well between first screening hole to screen pipe and the inboard filter tube, the fluid of tentatively screening simultaneously contains silt, tentatively filtered fluid is through the inside of second screening hole transport to inboard filter tube simultaneously, when can driving fluid and filter, increase filterable sufficiency, and it carries out isolated effect to drive the silt in the fluid, through the motor that starts inboard filter tube upper portion installation, it is rotatory to drive inboard filter tube, simultaneously when inboard filter tube is rotatory, it is rotatory to drive the helical pipeline, it upwards rotates to drive the silt that blocks up between screen pipe and the inboard filter tube junction, conveniently drive accumulational silt and discharge, avoid silt to block up to lead to the inside jam of pipeline between screen pipe and the inboard filter tube, influence the inside effect of fluid infiltration to inboard filter tube, can fix a position and collect the silt that blocks up, increase the flexibility of fluid circulation.

2. This but prefilter formula screen pipe, through the inside back that passes inboard filter tube with the inboard collecting tube of device, it cup joints the inside at collecting tube outside closing plate to drive the activity of movable pin, and drive the activity of movable pin and cup joint in one side that the movable positioning pressed from both sides the cover, and rotate the movable pin, drive the inside that the rotatory joint of movable pin pressed from both sides the cover at the movable positioning, can drive the position that the movable pin pressed from both sides between the cover and the movable positioning and carry out the joint and prescribe a limit to, the outside of the inboard collecting tube lower part is cup jointed in the activity of the outside closing plate of device collecting tube simultaneously, the outside that drives inboard collecting tube seals, and through the inboard collecting tube of device pipeline extension to the inside bottom of inboard filter tube, can drive the inboard collecting tube and carry out absorptive effect to the fluid of the inside screening of inboard filter tube.

3. This but prefilter formula screen pipe, through the outside fixedly connected with outside strengthening rib with the device screen pipe, can drive the outside strengthening rib and consolidate the screen pipe, install eight bracing pieces between every section outside strengthening rib simultaneously, can drive the position between two outside strengthening ribs and splice the injectly, can increase when the outside of device outside strengthening rib to the screen pipe is consolidated, the steadiness when increasing the device screen pipe use, when avoiding the device screen pipe to install inside the oil well below the kilometer, can avoid the too big problem that causes the extrusion damage to the screen pipe of pressure.

Drawings

FIG. 1 is a schematic view of a main structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a structural body of the present invention;

FIG. 3 is an exploded view of the main body of the present invention;

FIG. 4 is a schematic view of the duct base of the present invention.

In the figure: 1. a screen pipe; 2. reinforcing the cannula; 3. an outer reinforcing rib; 4. a first screening well; 5. a pipe base; 6. a chute rod; 7. the inner side of the filter pipe is provided with a positioning jacket; 8. an inner filtering pipe; 9. a helical conduit; 10. a second screening well; 11. an inner reinforcing jacket; 12. an inner collecting duct; 13. a movable pin; 14. a movable positioning jacket; 15. and a sealing plate outside the collecting pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1, 2, 3 and 4, a prefiltable screen pipe includes a screen pipe 1, a reinforcing pipe 2 is fixedly connected to a lower portion of the screen pipe 1 to facilitate driving of the reinforcing pipe 2 to extend into an oil well, an outer reinforcing rib 3 is installed outside the screen pipe 1 to reinforce an outer side of the screen pipe 1 and to prevent a problem of accumulation damage to a pipe caused by excessive pressure when the screen pipe 1 is installed in the oil well, a first screening hole 4 is formed outside the screen pipe 1, the first screening hole 4 drives an oil well outside the oil well to perform primary filtration, a pipe base 5 is movably sleeved to an inner side of the screen pipe 1, a chute rod 6 is fixedly connected to an outer side of the pipe base 5, the inner side of the screen pipe 1 is movably sleeved with an inner side filter pipe 8, the inner side filter pipe positioning sleeve 7 is movably connected to an upper portion of the inner side filter pipe positioning sleeve 7 to a lower portion of the inner side filter pipe 8 to be restricted by the lower portion of the inner side filter pipe 8, a position of the inner side filter pipe 8 is restricted to drive an inner side of the inner side filter pipe positioning sleeve 8, and the inner side filter pipe 8 drives an inner side filter pipe to rotate, and to prevent a secondary filter pipe 8 from being clogged by the inner side filter pipe 8 and to drive the inner side of the inner side filter pipe 8, the inboard collecting pipe 12 has been cup jointed in the inside activity that the inboard reinforced clamp cover 11 was pressed from both sides to the inboard reinforced clamp cover 11 of device is consolidated to the inboard of inboard filter tube 8, prescribes a limit to the activity orbit of inboard collecting pipe 12 simultaneously, and the lower part fixedly connected with removable pin 13 of inboard collecting pipe 12, the middle part fixedly connected with of the upper end of pipeline base 5 collects pipeline outside closing plate 15, and the inboard fixedly connected with of collecting pipeline outside closing plate 15 moves the location and presss from both sides cover 14. Through cup jointing the activity of activity round pin 13 in the outside that the movable positioning pressed from both sides cover 14, rotate inboard collection pipeline 12 simultaneously, drive the joint of activity round pin 13 in the inside that the movable positioning pressed from both sides cover 14, can drive the position between activity round pin 13 and the pipeline base 5 and splice the injeciton.

Referring to fig. 1 and 2, the upper end of the reinforcing insertion pipe 2 is thick and thin, the diameter of the upper opening of the reinforcing insertion pipe 2 is smaller than that of the pipeline base 5, the reinforcing insertion pipe 2 is installed on the lower portion of the device sieve pipe 1, the opening of the lower portion of the device reinforcing insertion pipe 2 is locally reduced, the reinforcing insertion pipe 2 can be driven to be inserted into an oil well when the device reinforcing insertion pipe 2 is used, the diameter of the upper opening of the device reinforcing insertion pipe 2 is smaller than that of the pipeline base 5, and the lowest distance of the pipeline base 5 can be driven to perform a limiting function when the pipeline base 5 is pushed to move downwards.

Refer to fig. 1, outside strengthening rib 3 is in the equidistant distribution of screen pipe 1's outside, the interval of two adjacent strengthening ribs 3 is ten centimetres, install eight bracing pieces between two outside strengthening ribs 3, the chamfer has been seted up in the outside of outside strengthening rib 3, through installing outside fixedly connected with outside strengthening rib 3 of screen pipe 1, can drive outside strengthening rib 3 and consolidate screen pipe 1, install eight bracing pieces between every section outside strengthening rib 3 simultaneously, can drive the position between two outside strengthening ribs 3 and splice the injecing, can increase when device outside strengthening rib 3 consolidates the outside of screen pipe 1, the steadiness when increasing device screen pipe 1 and using, when avoiding device screen pipe 1 to install inside the oil well below kilometer, can avoid the too big problem that causes the extrusion damage to screen pipe 1 of pressure.

Referring to fig. 2 and 4, the spout has been seted up to the inside of screen pipe 1, the inside at the recess is cup jointed in the activity of chute pole 6, the inner wall of screen pipe 1 is hugged closely in the outside of pipeline base 5, spout has been seted up through the inside with screen pipe 1, and drive the inside at the spout of chute pole 6 activity cup joint, can drive device pipeline base 5 increase the steadiness of removal when screen pipe 1 inside removes, sealed pad is installed in the outside of device pipeline base 5 simultaneously, so far can drive the effect that increases the leakproofness between pipeline base 5 and the screen pipe 1 inner wall.

Referring to fig. 2 and 3, the inner side filter pipe 8 can perform circular motion around the inner side filter pipe positioning jacket 7, the outer side of the spiral pipe 9 is tightly attached to the inner wall of the sieve pipe 1, the spiral pipe 9 is spiral, a gear motor is installed on one side of the upper part of the inner side filter pipe 8, circular motion can be performed around the outer side of the inner side filter pipe positioning jacket 7 by installing the inner side filter pipe 8, the gear motor is installed on the outer side of the upper part of the inner side filter pipe 8, the inner side filter pipe 8 is driven to rotate, the spiral pipe 9 is driven to rotate, and when the spiral pipe 9 rotates, silt blocked between the sieve pipe 1 and the joint of the inner side filter pipe 8 is driven to upwards rotate, so that the accumulated silt is conveniently driven to be discharged, the phenomenon that the pipeline is blocked between the sieve pipe 1 and the inner side filter pipe 8 due to blockage of silt, the effect of the oil permeating into the inner side filter pipe 8 is influenced, namely, the blocked silt can be positioned and collected, and the flexibility of oil circulation is improved.

Referring to fig. 3, the inner reinforcing jacket 11 is installed inside the inner filtering pipe 8 at equal intervals, the interval between two inner reinforcing jackets 11 is twenty centimeters, the inner side of the inner reinforcing jacket 11 is circular, the inner collecting pipe 12 is sequentially movably sleeved inside the inner reinforcing jacket 11, the inner side of the inner reinforcing jacket 11 is tightly attached to the outer wall of the inner collecting pipe 12, the inner reinforcing jacket 11 is fixedly connected with the inner side of the inner filtering pipe 8 and drives the inner reinforcing jacket 11 to limit the outer side of the inner collecting pipe 12, so that the inner collecting pipe 12 can be driven to be conveniently positioned when installed, the inner reinforcing jacket 11 is installed inside the inner filtering pipe 8, the inner side of the inner filtering pipe 8 can be extruded and limited, and the inner filtering pipe 8 is driven to increase the pressure resistance when used.

Referring to fig. 4, the outer sealing plate 15 of the outer side of the collecting pipe is tightly attached to the outer side of the lower portion of the inner collecting pipe 12, four movable pins 13 are installed on the lower portion of the inner collecting pipe 12, the lower portion of each movable pin 13 is movably sleeved inside the lower portion of the movable positioning clamping sleeve 14, the inner collecting pipe 12 of the device is passed through the inner filtering pipe 8, the movable pins 13 are driven to be movably sleeved inside the outer sealing plate 15 of the collecting pipe, the movable pins 13 are driven to be movably sleeved on one side of the movable positioning clamping sleeve 14, the movable pins 13 are driven to be rotatably clamped inside the movable positioning clamping sleeve 14, the positions between the movable pins 13 and the movable positioning clamping sleeve 14 can be driven to be clamped and limited, the outer sealing plate 15 of the outer side of the inner collecting pipe 12 is movably sleeved outside the lower portion of the inner collecting pipe 12, the outer side of the inner collecting pipe 12 is driven to be sealed, and the inner collecting pipe 12 extends to the bottom end of the inner filtering pipe 8, and the inner collecting pipe 12 of the inner filtering pipe 8 can be driven to absorb oil liquid screened inside the inner filtering pipe 12.

Referring to fig. 2 and 3, first screening hole 4 and second screening hole 10 have been seted up respectively to the outside of screen pipe 1 and the outside of inboard filter tube 8, the aperture that second screening hole 10 was seted up is less than the diameter of silt, through carrying the outside fluid of oil well between screen pipe 1 and the inboard filter tube 8 through first screening hole 4 tentatively, the fluid of while tentatively screening contains silt, the inside of tentatively filterable fluid carried inboard filter tube 8 through second screening hole 10 simultaneously, when can driving fluid and filtering, increase filterable sufficiency, and drive the effect that silt in the fluid carries out completely cut off.

The working principle is as follows: during the use, extend screen pipe 1 to the inside of oil well, and drive the inside that consolidates intubate 2 and insert the oil well, and the inside activity of screen pipe 1 has been cup jointed pipeline base 5, drive the inside of spout pole 6 activity cup joint at screen pipe 1, increase the flexibility when can driving pipeline base 5 activity, and after moving pipeline base 5 to corresponding position, pass the inside of inboard reinforcement clamp cover 11 with inboard collection pipeline 12, and drive the inside of inboard collection pipeline 12 lower part installation movable pin 13 activity cup joint at collection pipeline outside closing plate 15, and rotate inboard collection pipeline 12, drive movable pin 13 joint in the inside of activity location clamp cover 14 lower part, can drive the position between inboard collection pipeline 12 and pipeline base 5 and splice the injectly, simultaneously when using, fluid filters to between screen pipe 1 and inboard filter tube 8 through first screening hole 4, simultaneously primary filter's fluid is carried to the inside of inboard filter tube 8 through second screening hole 10, and set up the recess through the outside of inboard collection pipeline 12 lower part, can drive the post-filtration fluid and extract the extraction after long-term use, simultaneously, more silt drives the filter tube and drives the rotatory filter tube of spiral and carry out the problem of silt through spiral filter tube 8, can drive more spiral filter tube and carry out the rotatory filter tube of silt and carry out the problem of silt and the problem of this, it is carried out the rotatory filter tube of silt to the spiral filter tube 9, and the problem of silt to drive, it is carried out the spiral filter tube and is carried out to the problem of silt to the spiral filter tube.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A prefiltable screen comprising a screen (1), characterized in that: the utility model discloses a screen pipe, including screen pipe (1), screen pipe base, pipeline base, inboard filter tube (8), the externally mounted of screen pipe (1) has outside strengthening rib (3), first screening hole (4) have been seted up to screen pipe (1) outside, the inside activity of screen pipe (1) has cup jointed pipeline base (5), outside fixedly connected with spout pole (6) of pipeline base (5), the outside fixedly connected with inboard filter tube locating clip cover (7) on pipeline base (5) upper portion, inboard filter tube (8) have been cup jointed in the outside activity on inboard filter tube locating clip cover (7) upper portion, the externally mounted of inboard filter tube (8) has spiral pipeline (9), second screening hole (10) have been seted up to the inboard of inboard filter tube (8), the inboard reinforcing clip cover (11) of inboard fixedly connected with of inboard filter tube (8), the inside activity of inboard reinforcing clip cover (11) has cup jointed inboard collection pipeline (12), the lower part fixedly connected with movable pin (13) of inboard collection pipeline (12), the middle part fixedly connected with of pipeline base (5) upper end collects pipeline outside (15), collects pipeline outside movable sealing plate (14) and fixes a position the inboard fixed connection of pipe (15).

2. The prefiltable screen of claim 1 wherein: the upper end of the reinforcing insertion pipe (2) is thick, the lower end of the reinforcing insertion pipe is thin, and the diameter of an upper opening of the reinforcing insertion pipe (2) is smaller than that of the pipeline base (5).

3. The prefilter screen of claim 1, wherein: the outside strengthening rib (3) are at the outside equidistant distribution of screen pipe (1), and the interval of two adjacent strengthening ribs (3) is ten centimetres, two install eight bracing pieces between outside strengthening rib (3), the chamfer has been seted up in the outside of outside strengthening rib (3).

4. The prefilter screen of claim 1, wherein: the sieve tube is characterized in that a sliding groove is formed in the sieve tube (1), a sliding groove rod (6) is movably sleeved in the groove, and the outer side of the pipeline base (5) is tightly attached to the inner wall of the sieve tube (1).

5. The prefilter screen of claim 1, wherein: the inner side filter pipe (8) can move circularly around the inner side filter pipe positioning jacket (7), the outer side of the spiral pipeline (9) is tightly attached to the inner wall of the sieve tube (1), the spiral pipeline (9) is spiral, and a gear motor is installed on one side of the upper part of the inner side filter pipe (8).

6. The prefilter screen of claim 1, wherein: the inner side reinforcing clamping sleeves (11) are installed in the inner side filter pipes (8) at equal intervals, the interval between two inner side reinforcing clamping sleeves (11) is twenty centimeters, the inner sides of the inner side reinforcing clamping sleeves (11) are circular, the inner side collecting pipelines (12) are sequentially movably sleeved in the inner side reinforcing clamping sleeves (11), and the inner sides of the inner side reinforcing clamping sleeves (11) are tightly attached to the outer walls of the inner side collecting pipelines (12).

7. The prefiltable screen of claim 1 wherein: the collecting pipeline outer side sealing plate (15) is tightly attached to the outer side of the lower portion of the inner side collecting pipeline (12), four movable pins (13) are mounted on the lower portion of the inner side collecting pipeline (12), and the lower portion of each movable pin (13) is movably sleeved inside the lower portion of the movable positioning clamping sleeve (14).

8. The prefiltable screen of claim 1 wherein: first screening holes (4) and second screening holes (10) are respectively formed in the outer portion of the screen pipe (1) and the outer portion of the inner side filter pipe (8), and small holes formed in the second screening holes (10) are smaller than the diameter of silt.