CN216077037U

CN216077037U - Oil-water-gas well casing plugging device

Info

Publication number: CN216077037U
Application number: CN202122705407.2U
Authority: CN
Inventors: 王庆文; 姜学明; 王宏亮; 廖晓龙; 尹玉见
Original assignee: Shengli Oil Field Freet Petroleum Engineering Co ltd
Current assignee: Shengli Oil Field Freet Petroleum Engineering Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-03-18
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses an oil-water-gas well casing pipe leakage stopping device which comprises a casing pipe and an automatic lifting column, wherein a piston cylinder is arranged in the middle of an inner cavity of the casing pipe, a piston pull rod is arranged in the middle of an inner pipe of the piston cylinder, a sleeve is fixedly connected to the middle of the top end of the piston cylinder, and the middle of the top end of the sleeve is fixedly connected with the bottom end of a hydraulic anchor. According to the device, the patching tool slide valve, the jar knocker, the hydraulic anchor and the sleeve are connected onto the piston cylinder, the piston pull rod in the piston cylinder is pressed downwards, the patching tool slide valve, the jar knocker, the hydraulic anchor and the sleeve are put into a well along with the sleeve, the automatic extension and descent column in the sleeve drives the drill rod, the drill rod drives the fisher and the fishing head and is in butt joint with the guide pipe, so that the device is convenient to operate and operate, the elastic expansion head is fixed with the fixed block, the nut is arranged on the fixed block and is in threaded connection with the guide pipe, and the patching tool slide valve, the jar knocker, the hydraulic anchor and the sleeve are convenient to take out when in shaking.

Description

Oil-water-gas well casing plugging device

Technical Field

The utility model relates to the technical field of oilfield development, in particular to an oil-water-gas well casing plugging device.

Background

The total number of oil and gas reservoirs in the same oil and gas production area under the control of a single geological structure factor, one oil and gas field can have one or more oil and gas reservoirs, the oil and gas reservoirs are mainly called oil fields of oil reservoirs in the same area, and the gas fields are mainly called gas fields of gas reservoirs. According to the geological factor in the area of controlling oil and gas production, divide the oil and gas field into: the structural oil-gas field refers to an oil-gas field with an oil-gas production area controlled by a single structural factor, such as folds and faults, a stratum oil-gas field, an oil-containing area controlled by a stratum factor on the background of a regional anticline or monoclinic structure, a composite oil-gas field, and an oil-gas field with an oil-gas production area which is not controlled by a single structural factor or a stratum factor but controlled by a plurality of geological factors.

Most of the existing oilfield repairing technologies are that a repaired sleeve and a pull rod are put into a well simultaneously, so that a lot of troubles are brought to wellhead operation, the continuous sleeve repairing operation of more than hundreds of meters is difficult to realize, and meanwhile, the guide pipe is difficult to take out due to the fact that the guide pipe is easy to shake and take off due to the fact that the guide pipe is vibrated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a casing plugging device for an oil-water-gas well.

In order to achieve the purpose, the utility model adopts the following technical scheme: the oil-water gas well casing plugging device comprises a casing and an automatic extension and descent column, wherein a piston cylinder is arranged in the middle of an inner cavity of the casing, a piston pull rod is arranged in the middle of an inner pipe of the piston cylinder, a sleeve is fixedly connected to the middle of the top end of the piston cylinder, the middle of the top end of the sleeve is fixedly connected with the bottom end of a hydraulic anchor, a jar is arranged at the top end of the hydraulic anchor, a slide valve is arranged at the top end of the jar, a safety joint is fixedly connected to the middle lower end of the piston cylinder, the bottom end of the safety joint is fixedly connected with the top end of a rigid joint, the bottom end of the rigid joint is fixedly connected with the top end of an elastic expansion head, the bottom end of the elastic expansion head is fixedly connected with the top end of a fixed block, a nut is fixedly connected with the bottom end of the fixed block, the nut is in threaded connection with a guide pipe, and the automatic extension and descent column is arranged on one side inside the casing, the automatic telescopic column is characterized in that a fixed sleeve is fixedly connected to the top end of the rod body of the automatic telescopic column, a drill rod is fixedly connected to the middle of the bottom end of the fixed sleeve, the bottom end of the drill rod is fixedly connected with the middle of the top end of the fisher, and a fishing head is arranged in the middle of the bottom end of the fisher.

As a further description of the above technical solution:

the middle of the top end of the guide pipe is provided with a groove.

As a further description of the above technical solution:

the outside equidistance of fixed block is provided with a plurality of steady strip.

As a further description of the above technical solution:

the fishing head is fixedly connected with a fishing claw.

As a further description of the above technical solution:

the fixed sleeve is made of rubber.

As a further description of the above technical solution:

and a reinforcing layer is arranged on the outer wall of the piston cylinder.

As a further description of the above technical solution:

the inner wall equidistance of sheathed tube is provided with a plurality of light.

The utility model has the following beneficial effects:

1. according to the utility model, firstly, the patching tool sliding valve, the jar knocker, the hydraulic anchor and the sleeve are connected onto the piston cylinder, the piston rod in the piston cylinder is pressed downwards, the patching tool sliding valve, the jar knocker, the hydraulic anchor and the sleeve are put into a well along with the sleeve through the safety joint, the rigid joint, the elastic expansion head and the guide pipe, then the automatic telescopic column drives the drill rod in the sleeve, and the drill rod drives the fisher and the fishing head and is butted with the guide pipe, so that the device is convenient to operate, and the patching operation of the deep well is realized.

2. In the utility model, in the fixing of the guide pipe and the elastic expansion head, the guide pipe and the elastic expansion head are fixed with the fixing block through the elastic expansion head due to the vibration and the knocking of the well, the fixing block is provided with the nut, and the nut is in threaded connection with the guide pipe and is convenient to take out when in vibration separation.

Drawings

FIG. 1 is a front view structural diagram of the oil-water-gas well casing plugging device provided by the utility model;

FIG. 2 is a schematic structural diagram of the oil-water-gas well casing plugging device provided by the utility model;

fig. 3 is a partial schematic view of the oil-water-gas well casing plugging device provided by the utility model.

Illustration of the drawings:

1. a sleeve; 2. a spool valve; 3. a jar; 4. a hydraulic anchor; 5. a sleeve; 6. a piston cylinder; 7. a piston rod; 8. a safety joint; 9. a rigid joint; 10. an elastic expansion head; 11. a guide tube; 12. automatically extending and descending the column; 13. fixing a sleeve; 14. a drill stem; 15. a fisher; 16. fishing the head; 17. fishing claws; 18. a nut; 19. a fixed block; 20. a reinforcement layer; 21. and (6) stabilizing the strip.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: the oil-water-gas well casing plugging device comprises a casing 1 and an automatic extension and descent column 12, wherein a piston cylinder 6 is arranged in the middle of an inner side cavity of the casing 1, a piston pull rod 7 is arranged in the middle of an inner pipe of the piston cylinder 6, a sleeve 5 is fixedly connected to the middle of the top end of the piston cylinder 6, the middle of the top end of the sleeve 5 is fixedly connected with the bottom end of a hydraulic anchor 4, a jar 3 is arranged at the top end of the hydraulic anchor 4, a slide valve 2 is arranged at the top end of the jar 3, a safety joint 8 is fixedly connected to the middle and lower end of the piston cylinder 6, the bottom end of the safety joint 8 is fixedly connected with the top end of a rigid joint 9, the bottom end of the rigid joint 9 is fixedly connected with the top end of an elastic expansion head 10, the bottom end of the elastic expansion head 10 is fixedly connected with the top end of a fixed block 19, a nut 18 is fixedly connected with the bottom end of the fixed block 19, the nut 18 is in threaded connection with a guide pipe 11, the automatic extension and descent column 12 is arranged on one side in the casing 1, the top end of the rod body of the automatic extending and descending column 12 is fixedly connected with a fixed sleeve 13, the bottom middle part of the fixed sleeve 13 is fixedly connected with a drill rod 14, the bottom end of the drill rod 14 is fixedly connected with the top middle part of a fisher 15, the bottom middle part of the fisher 15 is provided with a fishing head 16, the fishing head 2, the jar 3, the hydraulic anchor 4 and the sleeve 5 are connected onto the piston cylinder 6 through a patching tool slide valve, the piston pull rod 7 in the piston cylinder 6 is pressed downwards, the hydraulic anchor enters a well through a safety joint 8, a rigid joint 9, an elastic expansion head 10 and a guide pipe 11 along with the sleeve 1, then the automatic extending and descending column 12 descends along the sleeve 1 at one side in the sleeve 1, the drill rod 14 is driven through the automatic extending and descending column 12, the drill rod 14 drives the fisher 15 and the fishing head 16 and is in butt joint with the guide pipe 11, repairing operation is carried out, and the device is convenient to operate.

The top middle part of stand pipe 11 is provided with the recess, be convenient for

nut

18 and 11 threaded connection of stand pipe, the outside equidistance of fixed block 19 is provided with the steady strip 21 of a plurality of, let fixed block 19 can resist the pressurized, fixedly connected with salvages claw 17 on salvaging head 16, salvage head 16 and be the cylindric, it is more stable that claw 17 is used for salvaging head 16 to salvage, fixed cover 13 is rubber, the leakproofness is strong, the outer wall of piston cylinder 6 is provided with back up coat 20, the reinforcing is sealed prevents to drip, sleeve 1's inner wall equidistance is provided with a plurality of lights, be convenient for illuminate the 1 inner wall condition of sleeve.

The working principle is as follows: the patching tool comprises a piston cylinder 6, a piston pull rod 7 in the piston cylinder 6 is pressed downwards, the patching tool enters a well through a safety joint 8, a rigid joint 9, an elastic expansion head 10 and a guide pipe 11 along with a sleeve 1, then an automatic extension column 12 descends along the sleeve 1 at one side in the sleeve 1, a drill rod 14 is driven through the automatic extension column 12, the drill rod 14 drives a fisher 15 and a fishing head 16 and is in butt joint with the guide pipe 11, and patching operation is carried out, so that the patching tool is convenient to operate and operate, the elastic expansion head 10 is fixed with a fixed block 19, a nut 18 is arranged on the fixed block 19, the nut 18 is in threaded connection with the guide pipe 11, and the patching tool is convenient to take out when in earthquake relief.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. Profit gas well sleeve pipe plugging device, including sleeve pipe (1) and automatic column (12) that stretch down, its characterized in that: a piston cylinder (6) is arranged in the middle of an inner side cavity of the sleeve (1), a piston pull rod (7) is arranged in the middle of an inner tube of the piston cylinder (6), a sleeve (5) is fixedly connected to the middle of the top end of the piston cylinder (6), the middle of the top end of the sleeve (5) is fixedly connected with the bottom end of the hydraulic anchor (4), a jar (3) is arranged at the top end of the hydraulic anchor (4), a slide valve (2) is arranged at the top end of the jar (3), a safety joint (8) is fixedly connected to the middle lower end of the piston cylinder (6), the bottom end of the safety joint (8) is fixedly connected with the top end of a rigid joint (9), the bottom end of the rigid joint (9) is fixedly connected with the top end of an elastic expansion head (10), the bottom end of the elastic expansion head (10) is fixedly connected with the top end of a fixing block (19), and a nut (18) is fixedly connected with the bottom end of the fixing block (19), nut (18) and stand pipe (11) threaded connection, inside one side of sleeve pipe (1) is provided with automatic post (12) that stretches down, the fixed cover (13) of body of rod top fixedly connected with of post (12) stretch down automatically, the bottom middle part fixedly connected with drilling rod (14) of fixed cover (13), the bottom of drilling rod (14) and the top middle part fixed connection of fisher (15), the bottom middle part of fisher (15) is provided with salvages head (16).

2. The oil-water-gas well casing plugging device as claimed in claim 1, wherein: the middle of the top end of the guide pipe (11) is provided with a groove.

3. The oil-water-gas well casing plugging device as claimed in claim 1, wherein: the outside equidistance of fixed block (19) is provided with a plurality of steady strip (21).

4. The oil-water-gas well casing plugging device as claimed in claim 1, wherein: the fishing head (16) is fixedly connected with a fishing claw (17).

5. The oil-water-gas well casing plugging device as claimed in claim 1, wherein: the fixed sleeve (13) is made of rubber.

6. The oil-water-gas well casing plugging device as claimed in claim 1, wherein: the outer wall of the piston cylinder (6) is provided with a reinforcing layer (20).

7. The oil-water-gas well casing plugging device as claimed in claim 1, wherein: the inner wall equidistance of sleeve pipe (1) is provided with a plurality of light.