CN220726252U

CN220726252U - Metal sand filtering pipe

Info

Publication number: CN220726252U
Application number: CN202322528847.4U
Authority: CN
Inventors: 李哲辉; 田径; 周德宏; 丁训龙
Original assignee: Yancheng Hiromichi Petroleum Machinery Co ltd
Current assignee: Yancheng Hiromichi Petroleum Machinery Co ltd
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2024-04-05
Anticipated expiration: 2033-09-18

Abstract

The utility model discloses a metal sand filtering pipe, which comprises: the base, the base upper end is provided with porous center base pipe and sand filtering body, porous center base pipe lower extreme is provided with the feed liquor through-hole, porous center base pipe upper end outside is provided with the connecting plate, the connecting plate lower extreme is fixed to be provided with the protection pipe, the protection intraductal sliding of protection is provided with the protection sleeve, the fixed limit slider that is provided with in protection sleeve upper end, fixed block and first traction steel cable, the protection intraductal side is provided with spacing spout, limit slider and spacing spout sliding fit connection, protection pipe lower extreme is provided with the fixed slot, fixed block and fixed slot joint cooperation, be provided with sealing baffle between sand filtering body and the porous center base pipe, protection sleeve's internal diameter is greater than the external diameter of sand filtering body. Compared with the prior art, the utility model is provided with the connecting plate, the protective tube and the protective sleeve, can protect the porous central base tube and the sand filtering tube body, and can prevent the sand filtering tube body from damaging or blocking caused by contact friction with the well wall of the oil well.

Description

Metal sand filtering pipe

Technical Field

The utility model belongs to the technical field of petroleum exploitation, and particularly relates to a metal sand filtering pipe.

Background

In the process of crude oil extraction, oil well sand production is unavoidable, and the oil well sand production can cause that more sand grains and other impurities are mixed in the extracted crude oil, so that the sand grains need to be filtered in the process of crude oil extraction.

A porous metal sieve tube, such as CN208236396U, comprising a sieve tube base tube, ribs and a sand filtering tube body made of porous metal; the screen tube base tube is a tubular body, and the wall of the screen tube base tube is provided with a plurality of through holes; the periphery of the screen tube base tube is provided with ribs; the sand filtering pipe body is sleeved on the periphery of the screen pipe base pipe and coaxial with the screen pipe base pipe, and the inner wall of the sand filtering pipe body is attached to the ribs; the pipe cavity between the sand filtering pipe body and the screen pipe base pipe is divided into a plurality of space flow passages by the ribs, the porous metal screen pipe divides the pipe cavity between the sand filtering pipe body and the screen pipe base pipe into a plurality of space flow passages by the ribs, the flow area is greatly increased, the flow resistance is reduced, the connectivity of pores is good, the pores are not easy to be blocked by stratum sand, and the oil yield is high; the sand filtering pipe body is made of porous metal, has high rigidity and is not easy to wear, the sand blocking precision of the sand filtering pipe body can be manually regulated and controlled in the manufacturing process according to stratum conditions, the working reliability is high, and the effective service cycle is long.

When the device is inserted into an oil well, the sand filtering pipe body is easy to contact and rub with the well wall of the oil well to cause damage or blockage, and the oil passing efficiency is affected.

Disclosure of Invention

The utility model provides a metal sand filtering pipe, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a metal sand screen comprising: the base, the base upper end is provided with porous center base pipe and sand filtering body, porous center base pipe lower extreme is provided with the feed liquor through-hole, porous center base pipe upper end outside is provided with the connecting plate, the connecting plate lower extreme is fixed to be provided with the protection pipe, the protection pipe is provided with the protection sleeve in the slip, protection sleeve upper end is fixed to be provided with spacing slider, fixed block and first traction cable, the protection pipe inboard is provided with spacing spout, spacing slider with spacing spout sliding fit is connected, protection pipe lower extreme is provided with the fixed slot, the fixed block with fixed slot joint cooperation, sand filtering body with be provided with sealing baffle between the porous center base pipe, the internal diameter of protection sleeve is than the external diameter of sand filtering body is big.

Still further, the fixed slot rotation is provided with the leading wheel, the fixed slot both sides are provided with the spacing spout of second, the fixed slot sliding is provided with the movable block, the fixed second spacing slider that is provided with in movable block both sides, the spacing slider of second with the spacing spout sliding fit of second is connected, the movable block with be provided with the spring between the protection tube, the movable block is kept away from the fixed spacer pin that is provided with of one end of spring, the fixed block is close to one side of movable block is provided with spacing hole, spacing hole with the corresponding setting in spacer pin position, the spacer pin with spacing hole sliding fit is connected, the movable block is close to one side of spring is fixed and is provided with the second traction cable.

Furthermore, the limiting sliding grooves and the limiting sliding blocks are respectively provided with two groups, and the two groups of limiting sliding blocks are respectively connected with the two groups of limiting sliding grooves in a sliding fit manner.

Furthermore, a cleaning scraping plate is fixedly arranged at the lower end of the inner side of the protective sleeve, and one side, close to the sand filtering pipe body, of the cleaning scraping plate is abutted to the outer wall of the sand filtering pipe body.

Still further, the cleaning blade is disposed obliquely.

Further, a metal filter screen is arranged between the sand filtering pipe body and the porous central base pipe.

Still further, the metal screen is spaced two centimeters from the porous base pipe.

Still further, the base is provided with an inclined portion.

Compared with the prior art, the utility model has the beneficial effects that: the utility model is provided with the base, the porous central base pipe, the sand filtering pipe body and the liquid inlet through hole, the sand filtering pipe body can be utilized to filter sand grains after the device is put into an oil well, crude oil can be ensured to enter the porous central base pipe for extraction and exploitation conveniently, the connecting plate, the protective pipe, the protective sleeve, the limiting sliding block, the fixed block, the first traction steel rope, the limiting sliding groove and the fixed groove are arranged, the protective pipe is fixedly arranged at the outer side of the upper end of the porous central base pipe, the protective sleeve can slide up and down in the protective pipe, the limiting sliding groove and the limiting sliding block are used for limiting and guiding, the protective sleeve slides downwards relative to the protective pipe before the device is detected into the oil well, so that the lower end of the protective sleeve is abutted with the upper end of the base, at the moment, the fixed block is matched with the fixed groove in a clamping way, the protective sleeve and the protective pipe are utilized to protect the porous central base pipe and the sand filtering pipe, damage or blockage caused by contact friction between the sand filtering pipe body and the wall of the oil well can be ensured, the first traction steel rope can be pulled to drive the protective sleeve to move up to the inside the protective pipe after the device is put into the oil well, and the device is convenient to collect sand filtering conveniently.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a partial schematic view of FIG. 2 at A;

FIG. 4 is a partial schematic view of FIG. 2 at B;

FIG. 5 is a partial schematic view of FIG. 2 at C;

FIG. 6 is a schematic structural view of the fixing groove of the present utility model;

FIG. 7 is a partial schematic view of FIG. 6 at D;

fig. 8 is a schematic structural view of the protective sleeve of the present utility model.

In the figure: 1. a base; 2. a porous central base pipe; 3. a sand filtering pipe body; 4. a liquid inlet through hole; 5. a connecting plate; 6. a protective tube; 7. a protective sleeve; 8. a limit sliding block; 9. a fixed block; 10. limiting sliding grooves; 11. a first traction cable; 12. a fixing groove; 13. a sealing baffle; 14. a guide wheel; 15. the second limiting chute; 16. a moving block; 17. the second limit sliding block; 18. a spring; 19. a limiting pin; 20. a limiting hole; 21. a second traction cable; 22. cleaning a scraping plate; 23. a metal filter screen; 24. an inclined portion.

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.

As shown in fig. 1 to 8, a metal sand screen includes: the base 1, the base 1 upper end is provided with porous central base pipe 2 and sand filtering pipe body 3, porous central base pipe 2 lower extreme is provided with feed liquor through hole 4, porous central base pipe 2 upper end outside is provided with connecting plate 5, connecting plate 5 lower extreme is fixed and is provided with protection pipe 6, protection pipe 6 sliding is provided with protection sleeve 7, protection sleeve 7 upper end is fixed and is provided with spacing slider 8, fixed block 9 and first traction cable 11, protection pipe 6 inboard is provided with spacing spout 10, spacing slider 8 and spacing spout 10 sliding fit connection, protection pipe 6 lower extreme is provided with fixed slot 12, fixed block 9 and fixed slot 12 joint cooperation, be provided with sealing baffle 13 between sand filtering pipe body 3 and the porous central base pipe 2, protection sleeve 7's internal diameter is bigger than sand filtering pipe body 3's external diameter, spacing spout 10 and spacing slider 8 all are provided with two sets of, two sets of spacing slider 8 are connected with two sets of spacing spouts 10 sliding fit respectively, through the arrangement of the base 1, the porous central base pipe 2, the sand filtering pipe body 3 and the liquid inlet through hole 4, sand grains can be filtered by the sand filtering pipe body 3 after the device is put into an oil well, crude oil can enter the porous central base pipe 2, extraction and exploitation are convenient, through the arrangement of the connecting plate 5, the protective pipe 6, the protective sleeve 7, the limit sliding block 8, the fixing block 9, the first traction steel rope 11, the limit sliding groove 10 and the fixing groove 12, the protective pipe 6 is fixedly arranged at the outer side of the upper end of the porous central base pipe 2, the protective sleeve 7 can slide up and down in the protective pipe 6, the limit sliding groove 10 and the limit sliding block 8 are used for limiting and guiding, the protective sleeve 7 slides downwards relative to the protective pipe 6 before the device is detected into the oil well, the lower end of the protective sleeve 7 is abutted with the upper end of the base 1, at the moment, the fixing block 9 is matched with the fixing groove 12 in a clamping way, the protection sleeve 7 and the protection tube 6 are utilized to protect the porous central base tube 2 and the sand filtering tube body 3, damage or blockage caused by contact friction between the sand filtering tube body 3 and the well wall of an oil well can be prevented, normal operation and use of the sand filtering tube body 3 can be guaranteed, the device can be put into the oil well, the first traction steel rope 11 can be pulled to drive the protection sleeve 7 to move upwards to the inside of the protection tube 6, the sand filtering tube body 3 is convenient to expose for filtering, collection is convenient, and the sealing baffle 13 can seal and protect the sand filtering tube body 3 and the porous central base tube 2, so that sand and stone are prevented from entering the inside of the porous central base tube 2.

The fixed slot 12 rotation is provided with leading wheel 14, the fixed slot 12 both sides are provided with second spacing spout 15, the fixed sliding of fixed slot 12 is provided with movable block 16, the fixed second spacing slider 17 that is provided with in movable block 16 both sides, second spacing slider 17 and second spacing spout 15 sliding fit are connected, be provided with spring 18 between movable block 16 and the protection pipe 6, the one end that the movable block 16 kept away from spring 18 is fixed and is provided with spacer 19, one side that the fixed block 9 is close to movable block 16 is provided with spacing hole 20, spacing hole 20 and the corresponding setting in spacer 19 position, spacer 19 and spacing hole 20 sliding fit are connected, one side that the movable block 16 is close to spring 18 is fixed and is provided with second traction cable 21, second spacing slider 17 and second spacing spout 15 can carry out spacing and direction to movable block 16, through setting up fixed slot 12, leading wheel 14, second spacing spout 15, movable block 16, second spacing slider 17, spring 18, spacer 19, spacing hole 20 and second traction cable 21 are led to the fact the fixed cable 21 to draw-in to draw wire 21 to draw the fixed groove to draw wire 21 to drive the movable block 16 to drive the recess 12 down along spring 18 to make the fixed slot 7 and make the fixed slot of movable block 16 to lead to the fact the fixed slot to be lost motion, can lead to the fixed slot 9 to the inside of the fixed friction well, and prevent the fixed sleeve from leading to the deformation of the fixed slot 9 to be connected with the fixed slot to the inside of the fixed slot to be exposed friction sleeve to the fixed slot 9.

The inboard lower extreme of protection sleeve 7 is fixed to be provided with clearance scraper blade 22, and the one side that clearance scraper blade 22 is close to sand screen body 3 and the butt of sand screen body 3 outer wall, clearance scraper blade 22 slope sets up, through setting up clearance scraper blade 22, can clear up sand screen body 3 outer wall when protection sleeve 7 put down after the device takes out the oil well.

Be provided with metal filter screen 23 between sand filtering body 3 and the porous central base pipe 2, interval two centimetres between metal filter screen 23 and the porous central base pipe 2, base 1 is provided with tilting portion 24, carries out secondary filtration through setting up metal filter screen 23, and the filter effect is better, through setting up interval two centimetres between metal filter screen 23 and the porous central base pipe 2, and the spaced space can be regarded as the water conservancy diversion clearance, is favorable to accelerating the liquid circulation, and tilting portion 24 can reduce the resistance when base 1 gets into the oil well.

The working principle of the utility model is as follows: when the device is used, the second traction steel cable 21 is pulled to drive the movable block 16 to move along the fixed groove 12, the spring 18 is compressed and deformed, the protective sleeve 7 is conveniently moved downwards to enable the fixed block 9 to be matched with the fixed groove 12 in a clamping mode, the second traction steel cable 21 is loosened, the spring 18 can drive the limiting pin 19 to slide into the limiting hole 20 to limit and fix the fixed block 9, the protective sleeve 7 is prevented from sliding into the protective tube 6 to expose the sand filtering tube body 3 due to loosening of the fixed block 9 and the fixed groove 12 caused by external friction when the device is detected into an oil well, damage or blockage caused by contact friction between the sand filtering tube body 3 and the oil well is prevented, the limiting pin 19 is conveniently moved out of the limiting hole 20 by pulling the second traction steel cable 21 after the device is placed into the oil well, and the protective sleeve 7 is driven to move upwards to the interior of the protective tube 6 by pulling the first traction steel cable 11, so that the sand filtering tube body 3 is conveniently exposed, and the device is convenient to collect.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a metal sand filtering pipe, its characterized in that, including base (1), base (1) upper end is provided with porous center base pipe (2) and sand filtering body (3), porous center base pipe (2) lower extreme is provided with feed liquor through-hole (4), porous center base pipe (2) upper end outside is provided with connecting plate (5), connecting plate (5) lower extreme is fixed to be provided with protection pipe (6), be provided with protection sleeve (7) in protection pipe (6), protection sleeve (7) upper end is fixed to be provided with spacing slider (8), fixed block (9) and first traction cable (11), protection pipe (6) inboard is provided with spacing spout (10), spacing slider (8) with spacing spout (10) sliding fit connection, protection pipe (6) lower extreme is provided with fixed slot (12), fixed block (9) with fixed slot (12) joint cooperation, sand filtering body (3) with be provided with between porous center base pipe (2) protection sleeve (13), the external diameter of sealing baffle (3) is bigger than the sand filtering body (3).

2. A metal sand screen as claimed in claim 1, wherein: the utility model discloses a fixed slot (12) internal rotation is provided with leading wheel (14), fixed slot (12) both sides are provided with second spacing spout (15), the fixed slot (12) internal sliding is provided with movable block (16), fixed second spacing slider (17) that are provided with in movable block (16) both sides, second spacing slider (17) with second spacing spout (15) sliding fit is connected, movable block (16) with be provided with spring (18) between protection tube (6), movable block (16) are kept away from the fixed spacer pin (19) that are provided with of one end of spring (18), one side that fixed block (9) are close to movable block (16) is provided with spacing hole (20), spacing hole (20) with spacer pin (19) position is corresponding to be set up, spacing pin (19) with spacing hole (20) sliding fit is connected, one side that movable block (16) is close to spring (18) is provided with second traction cable wire (21).

3. A metal sand screen as claimed in claim 2, wherein: the limiting sliding grooves (10) and the limiting sliding blocks (8) are respectively provided with two groups, and the two groups of limiting sliding blocks (8) are respectively connected with the two groups of limiting sliding grooves (10) in a sliding fit manner.

4. A metal sand screen according to claim 3, wherein: the sand filtering device is characterized in that a cleaning scraping plate (22) is fixedly arranged at the lower end of the inner side of the protective sleeve (7), and one side, close to the sand filtering pipe body (3), of the cleaning scraping plate (22) is abutted to the outer wall of the sand filtering pipe body (3).

5. A metal sand screen as claimed in claim 4, wherein: the cleaning scraper (22) is obliquely arranged.

6. A metal sand screen according to claim 3, wherein: a metal filter screen (23) is arranged between the sand filtering pipe body (3) and the porous central base pipe (2).

7. A metal sand screen as claimed in claim 6, wherein: the metal filter screen (23) is spaced from the porous central base pipe (2) by two centimeters.

8. A metal sand screen according to claim 3, wherein: the base (1) is provided with an inclined portion (24).