CN216342057U

CN216342057U - Screen pipe device for coal bed gas horizontal well completion

Info

Publication number: CN216342057U
Application number: CN202123245754.8U
Authority: CN
Inventors: 王瑞城; 王力; 李远灵
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-04-19
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses a screen pipe device for coal bed gas horizontal well completion, which comprises a mounting plate, wherein a groove is arranged on the mounting plate, the groove is provided with a ball bearing, a second screw rod is arranged in the ball bearing, a moving block is arranged on the second screw rod, the moving block and the mounting plate are both provided with threaded columns, the threaded columns are provided with connecting seats, the connecting seats are provided with fixing rings, the fixing rings are provided with threaded sleeves, a first screw rod is arranged in each threaded sleeve, the first screw rod is provided with a limiting plate, a screen pipe body is arranged in each fixing ring, the mounting plate is provided with a mounting frame, the mounting frame is provided with a motor, the motor is connected with the second screw rod, the two screen pipe bodies can be effectively fixed on the same horizontal line through the fixing rings, the limiting plates, the second screw rod and the threaded sleeves, one screen pipe body can be effectively close to the other screen pipe body through the motor, thereby facilitating the connection of the two screen pipe bodies.

Description

Screen pipe device for coal bed gas horizontal well completion

Technical Field

The utility model relates to the field of coal bed gas horizontal wells, in particular to a screen pipe device for well completion of a coal bed gas horizontal well.

Background

Horizontal wells are special wells having a maximum well deviation angle of up to or near 90 (typically no less than 86) and maintaining a horizontal well section of a certain length in the zone of interest. Sometimes the angle of inclination may exceed 90 deg., for certain special needs, "upturned". Generally, horizontal wells are suitable for thin hydrocarbon reservoirs or fractured hydrocarbon reservoirs with the aim of increasing the exposed area of the hydrocarbon reservoir.

The horizontal well technology integrates some advanced technical achievements of various disciplines, and is praised as a major breakthrough in the development process of the petroleum industry.

The sieve tube is needed to be used in the using process of the existing horizontal well, when the sieve tube is used, the sieve tube is not used by a single sieve tube, a plurality of sieve tubes are needed to be connected, and the sieve tube can be used until the length meets the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a screen pipe device for coal bed gas horizontal well completion, which aims to solve the technical problem.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a screen pipe device for completion of coal bed gas horizontal well, includes the mounting panel, be provided with the recess on the mounting panel, ball bearing has all been set firmly in the recess left and right sides, ball bearing is inside to have set firmly the second screw rod, threaded connection has the movable block on the second screw rod, the movable block has all set firmly the screw thread post with the mounting panel top, screw thread post top threaded connection has the connecting seat, the connecting seat top has set firmly solid fixed ring, gu the fixed ring top runs through and has set firmly the thread bush, the inside threaded connection of thread bush has first screw rod, first screw rod bottom has set firmly the limiting plate, gu the inside screen pipe body that is provided with of fixed ring, the mounting panel right side has set firmly the mounting bracket, the mounting bracket right side has set firmly the motor, the power output shaft of motor runs through the mounting bracket and is connected with the second screw rod.

Preferably, the moving block is slidably connected with the mounting plate.

Preferably, the sieve tube body is provided with a plurality of slots and through holes, and the structure of the slots and the structure of the through holes are both small in outer opening and large in inner opening.

Preferably, the bottom of the mounting plate is fixedly provided with a storage box, the storage box is provided with a sealing door, and a plurality of fixing rings with different specifications are arranged inside the storage box.

Preferably, the bottom plate has been set firmly in storage box bottom, the support column has all been set firmly in the bottom plate top left and right sides, the arc backup pad has been set firmly in the support column top, the inside roll connection of arc backup pad has a plurality of balls.

Preferably, the mounting bracket is U-shaped.

The utility model has the beneficial effects that:

1. according to the utility model, the two sieve tube bodies can be effectively fixed on the same horizontal line through the fixing ring, the limiting plate, the second screw and the threaded sleeve, and one sieve tube body can be effectively close to the other sieve tube body through the motor, so that the two sieve tube bodies can be conveniently connected.

2. Through setting up the solid fixed ring of storage box storage different specifications, and solid fixed ring is convenient for change to can change at any time when solid fixed ring can't use, do not influence work efficiency, with the help of arc backup pad, ball, can play the effect of supporting the screen pipe body.

3. The structure of the slot and the through hole is that the outer opening is small, the inner opening is large, the large-particle coal blocks are prevented from being clamped in the hole opening to block a gas production channel, and the coal blocks or the large particles enter the slot and the through hole immediately and are discharged out of the well along with water flow.

Drawings

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

FIG. 2 is a schematic view of the connection between the retaining ring and the limiting plate according to the present invention;

FIG. 3 is a schematic view of the connection between the arc-shaped support plate and the balls according to the present invention;

FIG. 4 is a schematic view of the connection of the mounting plate to the second screw of the present invention;

FIG. 5 is a schematic structural view of the screen body of the present invention;

reference numerals: 1. a base plate; 2. a storage box; 3. a sealing door; 4. mounting a plate; 5. a mounting frame; 6. a motor; 7. an arc-shaped support plate; 8. a fixed block; 9. a screw; 10. a connecting seat; 11. a moving block; 12. a screen pipe body; 13. slotting; 14. a through hole; 15. a fixing ring; 16. a first screw; 17. a limiting plate; 18. a threaded sleeve; 19. a ball bearing; 20. a groove; 21. a second screw; 22. a ball bearing; 23. and (4) a support column.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood, the utility model is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the utility model, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

As shown in fig. 1-5, a screen pipe device for coal bed gas horizontal well completion comprises a mounting plate 4, a groove 20 is arranged on the mounting plate 4, ball bearings 22 are fixedly arranged on the left side and the right side of the groove 20, a second screw 21 is fixedly arranged in the ball bearings 22, a moving block 11 is in threaded connection with the second screw 21, threaded columns 9 are fixedly arranged on the top of the moving block 11 and the top of the mounting plate 4, a connecting seat 10 is in threaded connection with the top of the threaded column 9, a fixing ring 15 is fixedly arranged on the top of the connecting seat 10, a threaded sleeve 18 is fixedly arranged on the top of the fixing ring 15 in a penetrating manner, a first screw 16 is in threaded connection with the inside of the threaded sleeve 18, a limiting plate 17 is fixedly arranged at the bottom end of the first screw 16, a screen pipe body 12 is arranged in the fixing ring 15, a mounting frame 5 is fixedly arranged on the right side of the mounting plate 4, a motor 6 is fixedly arranged on the right side of the mounting frame 5, and a power output shaft of the motor 6 penetrates through the mounting frame 5 and is connected with the second screw 21, the moving block 11 is connected with the mounting plate 4 in a sliding manner, and the mounting frame 5 is U-shaped;

when the sieve tube body 12 is placed on the fixing ring 15, the sieve tube body 12 is supported by the arc-shaped supporting plate 7, and the balls 19 are arranged on the arc-shaped supporting plate 7, so that the sieve tube body 12 can be directly pushed to move into the fixing ring 15;

after the sieve tube bodies 12 are fixed, the motor 6 can be started, the motor 6 drives the second screw 21 to rotate, the second screw 21 drives the moving block 11 to move, and the moving block 11 drives one sieve tube body 12 to be close to the other sieve tube body 12 through the fixing ring 15, so that the two sieve tube bodies 12 are in contact with each other, and the connection is convenient;

the bottom of the mounting plate 4 is fixedly provided with the storage box 2, the sealing door 3 is mounted on the storage box 2, a plurality of fixing rings 15 with different specifications are arranged in the storage box 2, and after the fixing rings 15 are used for a long time, the fixing rings 15 can be rotated, so that the connecting seat 10 at the bottom of the fixing rings 15 is separated from the threaded column 9, a new fixing ring 15 can be taken from the interior of the storage box 2 for replacement, and the fixing ring 15 which does not meet the specification can also be replaced;

the sieve tube body 12 is provided with a plurality of slots 13 and through holes 14, the structure of the slots 13 and the structure of the through holes 14 are both small outside openings and large inside openings, the sieve tube body 12 is provided with a plurality of slots 13 and through holes 14, and the structures of the slots 13 and the through holes 14 are both small outside openings and large inside openings, so that large-particle coal blocks are prevented from being clamped at an orifice to block a gas production channel, and the large-particle coal blocks or large-particle coal blocks enter the slots 13 and the through holes 14 and immediately enter the tube body to be discharged out of a well along with water flow.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a coal bed gas horizontal well screen pipe device for well completion, includes mounting panel (4), its characterized in that: the sieve tube is characterized in that a groove (20) is formed in the mounting plate (4), ball bearings (22) are fixedly arranged on the left side and the right side of the groove (20), a second screw rod (21) is fixedly arranged inside the ball bearings (22), a moving block (11) is connected to the second screw rod (21) in a threaded manner, threaded columns (9) are fixedly arranged on the tops of the moving block (11) and the mounting plate (4), a connecting seat (10) is connected to the top of each threaded column (9) in a threaded manner, a fixing ring (15) is fixedly arranged on the top of the connecting seat (10), a threaded sleeve (18) is fixedly arranged on the top of the fixing ring (15) in a penetrating manner, a first screw rod (16) is connected to the inner portion of the threaded sleeve (18) in a threaded manner, a limiting plate (17) is fixedly arranged at the bottom end of the first screw rod (16), a sieve tube body (12) is arranged inside the fixing ring (15), and a mounting frame (5) is fixedly arranged on the right side of the mounting plate (4), the motor (6) is fixedly arranged on the right side of the mounting rack (5), and a power output shaft of the motor (6) penetrates through the mounting rack (5) and is connected with the second screw (21).

2. The screen pipe device for coal bed gas horizontal well completion according to claim 1, wherein: the moving block (11) is connected with the mounting plate (4) in a sliding mode.

3. The screen pipe device for coal bed gas horizontal well completion according to claim 1, wherein: the sieve tube body (12) is provided with a plurality of slots (13) and through holes (14), and the structure of the slots (13) and the structure of the through holes (14) are small in outer opening and large in inner opening.

4. The screen pipe device for coal bed gas horizontal well completion according to claim 1, wherein: the bottom of the mounting plate (4) is fixedly provided with a storage box (2), the storage box (2) is provided with a sealing door (3), and a plurality of fixing rings (15) with different specifications are arranged inside the storage box (2).

5. The screen pipe device for coal bed gas horizontal well completion according to claim 4, wherein: bottom plate (1) has set firmly in storage box (2) bottom, both sides all have set firmly support column (23) about bottom plate (1) top, support column (23) top has set firmly arc backup pad (7), arc backup pad (7) inside roll connection has a plurality of balls (19).

6. The screen pipe device for coal bed gas horizontal well completion according to claim 1, wherein: the mounting rack (5) is U-shaped.