CN218311260U

CN218311260U - Underground pipeline cutting device

Info

Publication number: CN218311260U
Application number: CN202222951806.1U
Authority: CN
Inventors: 李旭峰
Original assignee: Xinjiang Juhang Petroleum Engineering Technology Co ltd
Current assignee: Xinjiang Juhang Petroleum Engineering Technology Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-01-17
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a pipeline cutting device in pit, concretely relates to cutting device technical field, which comprises a cable, cable lower extreme fixed mounting has a first equipment section of thick bamboo, fixed mounting has fixing device in the first equipment section of thick bamboo, first equipment section of thick bamboo lower extreme fixed mounting has a second equipment section of thick bamboo, second equipment section of thick bamboo below is provided with planetary gear set, fixed mounting second motor in the second equipment section of thick bamboo, planetary gear set lower extreme fixed mounting has the sword cap, set up blade adjusting device in the sword cap. A pipeline cutting device in pit, mutually support through cable, a first equipment section of thick bamboo, fixing device, a second equipment section of thick bamboo, planetary gear set, sword cap, second motor, blade adjusting device and carry out long-range cutting to the pipeline in the pit to the realization is to the accurate cutting of pipeline in the pit, makes the cutting of pipeline in the pit become more high-efficient, safer, more convenient and easy operation, the construction is simple simultaneously, is fit for the narrow and small operation in space, extensive applicability.

Description

Underground pipeline cutting device

Technical Field

The utility model relates to a cutting device technical field, in particular to pipeline cutting device in pit.

Background

During the process of petroleum drilling exploitation and oilfield operation, various engineering accidents inevitably occur, such as drill pipe clamping, oil casing deformation and the like. In order to solve the problems, a pipe column cutting method is mostly adopted to cut the pipe column which is stuck and deformed, and then the well repairing operation is carried out.

The traditional cutting mostly adopts modes such as explosive cutting and chemical cutting to cut the tubular column from the inside, but these cutting modes have very big potential safety hazard, environmental pollution, cause secondary incident easily simultaneously.

Patent numbers: CN114607305A downhole pipe string cutting device; start the promotion subassembly, drive the pressurization piston through the catch bar and slide down in high-pressure gas storehouse, thereby compressed gas, because balance piston's effect, along with the atmospheric pressure increase in the high-pressure gas storehouse, water pressure in the high-pressure water storehouse rises, when water pressure rises to the uniform strength, it enters into conveying pipeline in to dash the diaphragm, and then spray high-pressure water column to the impact flabellum through the nozzle, impact flabellum atress and rotate, thereby it rotates to drive cutting assembly through the axis of rotation, and then cut the tubular column in the pit through cutting assembly, compare in the mode that adopts chemical cutting to the sticking drill, when the tubular column of deformation cuts, spun corrosive liquids are mostly the fluoride, there is strong toxicity, use limited mode, the suitability is wider.

Above-mentioned device is fixed to the unable accurate positioning of cutting point when using, leads to the cutting cross-section irregular, and outside tubular product is hindered by mistake still easily, causes the accident in the well to complicate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a pipeline cutting device in pit can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

the utility model provides a pipeline cutting device in pit, includes the cable, cable lower extreme fixed mounting has a first equipment section of thick bamboo, fixed mounting has fixing device in the first equipment section of thick bamboo, first equipment section of thick bamboo lower extreme fixed mounting has a second equipment section of thick bamboo, second equipment section of thick bamboo below is provided with planetary gear set, fixed mounting second motor in the second equipment section of thick bamboo, planetary gear set lower extreme fixed mounting has the sword cap, set up blade adjusting device in the sword cap.

Preferably, a supporting plate is fixedly mounted on the upper portion of the inner wall of the first equipment cylinder, and a plurality of movable openings are uniformly formed in the side wall of the first equipment cylinder.

Preferably, fixing device includes first motor and positive and negative tooth lead screw, first motor fixed mounting is in the backup pad upper end, the output and positive and negative tooth lead screw upper end fixed connection of first motor, both ends rotate respectively about the positive and negative tooth lead screw and connect at backup pad lower extreme and first equipment section of thick bamboo inner chamber diapire, positive and negative tooth lead screw surface symmetry screw thread cup joints and installs two cross bases, two four ends of cross base are all rotated and are installed adjusting rod, and per two are corresponding adjusting rod's one end is all rotated jointly and is installed the slurcam, and is a plurality of the equal fixed mounting of slurcam has the stripper bar, the stripper bar slides in the expansion gap.

Preferably, planetary gear set includes sun gear, a plurality of planet wheel and gear circle, gear circle fixed connection is at the sword cap top, the gear circle rotates to be connected at second equipment bobbin base, planet wheel and gear circle all rotate to be connected at second equipment bobbin base, the output shaft fixed connection of sun gear and second motor.

Preferably, the upper end of the cutter cap is provided with an installation groove.

Preferably, blade adjusting device includes first bevel gear and second bevel gear, first bevel gear fixed connection is in the sun gear below, and sun gear and the coaxial rotation of first bevel gear, first bevel gear and second bevel gear meshing are connected, and second bevel gear is located first bevel gear below, mounting tank bottom fixed mounting has the fixed plate, second bevel gear rotates and connects on the fixed plate, second bevel gear one side fixedly connected with screw rod, the one end rotation that second bevel gear was kept away from to the screw rod is connected on the mounting groove lateral wall, screw rod surface threaded connection has the fly leaf, fly leaf and mounting groove lateral wall sliding connection, fly leaf one side is provided with the blade, the blade cap is located blade one side and has seted up out the edge of a knife.

Preferably, the two cross bases are respectively positioned on the positive and negative thread sides of the positive and negative thread screw rod.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a pipeline cutting device in pit, through the cable, a first equipment section of thick bamboo, fixing device, a second equipment section of thick bamboo, planetary gear set, the sword cap, the second motor, blade adjusting device mutually supports carries out long-range cutting to the pipeline in the pit, thereby realize by the long-range electric control of ground to pipeline cutting device in the pit, and realize the accurate cutting to the pipeline in the pit, make the cutting of pipeline in the pit become more high-efficient, safer, more controllable, more convenient and easy operation, while construction is simple, need not carry out special treatment to the well, do not need the rig, workover rig, the cooperation of slush pump etc., be fit for the operation of space narrow and small, and wide applicability, this cutting device does not belong to the hazardous articles simultaneously, when consequently using this device to carry out the cutting of tubular column in the pit, the use trouble and the danger of operation that hazardous explosive and chemical brought have been avoided using.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is an enlarged schematic view of the present invention at a in fig. 2;

fig. 4 is an enlarged schematic view of the present invention at B in fig. 2.

In the figure: 1. a cable; 2. a first equipment drum; 3. a fixing device; 4. a second equipment drum; 5. a planetary gear set; 6. a knife cap; 7. a second motor; 8. a blade adjustment device; 21. a movable opening; 22. a support plate; 31. a first motor; 32. a screw rod with positive and negative teeth; 33. a cross base; 34. adjusting the supporting rod; 35. a push plate; 36. an extrusion stem; 51. a sun gear; 52. a planet wheel; 53. a gear ring; 81. a first bevel gear; 82. a second bevel gear; 83. a fixing plate; 84. a screw; 85. a movable plate; 86. a blade; 61. a knife edge is formed; 62. and (4) mounting the groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a pipeline cutting device in pit, including cable 1, cable 1 adopts 5.6mm single core or multicore cable, 1 lower extreme fixed mounting of cable has first equipment section of thick bamboo 2, fixed mounting has fixing device 3 in the first equipment section of

thick bamboo

2, 2 lower extreme fixed mounting of first equipment section of thick bamboo have second equipment section of thick bamboo 4, second equipment section of thick bamboo 4 below is provided with planetary gear set 5, fixed mounting second motor 7 in the second equipment section of thick bamboo 4, 5 lower extreme fixed mounting of planetary gear set has sword cap 6, set up blade adjusting device 8 in the sword cap 6.

A supporting plate 22 is fixedly mounted on the upper portion of the inner wall of the first equipment barrel 2, and a plurality of movable openings 21 are uniformly formed in the side wall of the first equipment barrel 2.

Fixing device 3 includes first motor 31 and positive and negative tooth lead screw 32, first motor 31 fixed mounting is in backup pad 22 upper end, first motor 31's output and positive and negative tooth lead screw 32 upper end fixed connection, positive and negative tooth lead screw 32 is from top to bottom both ends rotated respectively and is connected at backup pad 22 lower extreme and the 2 inner chamber diapalls of first equipment section of thick bamboo, two positive and negative tooth lead screw 32 surface symmetry screw thread cup joints installs two cross bases 33, two four ends of cross base 33 are all rotated and are installed adjusting arm 34, and per two are corresponding adjusting arm 34's one end is all rotated jointly and is installed slurcam 35, and is a plurality of the equal fixed mounting of slurcam 35 has stripper bar 36, stripper bar 36 slides in activity mouth 21, stripper bar 36 end is provided with the rubber pad, improves frictional force.

First motor 31 starts, drive positive and negative tooth lead screw 32 and rotate, when positive and negative tooth lead screw 32 rotates, can drive two cross bases 33 or the back of the body removal in opposite directions, and then can drive a plurality of slurcam 35 synchronous outward movement or the inside shrink through a plurality of adjusting branch 34, thereby can promote stripper bar 36, make a plurality of stripper bars 36 synchronous outward movement extrusion pipe inner wall, thereby fix on pipe inner wall, avoid the cutting to rock, lead to cutting cross-section irregular, after the cutting is accomplished, positive and negative tooth lead screw 32 antiport, thereby make a plurality of stripper bars 36 keep away from pipe inner wall, thereby conveniently remove cutting device.

Planetary gear set 5 includes sun gear 51, a plurality of planet wheel 52 and gear circle 53, gear circle 53 fixed connection is at the top of sword cap 6, gear circle 53 rotates to be connected in second equipment section of thick bamboo 4 bottom, planet wheel 52 and gear circle 53 all rotate to be connected in second equipment section of thick bamboo 4 bottom, sun gear 51 and second motor 7's output shaft fixed connection.

The upper end of the cutter cap 6 is provided with a mounting groove 62, the cutter blade adjusting device 8 comprises a first bevel gear 81 and a second bevel gear 82, the first bevel gear 81 is fixedly connected below the sun gear 51, the sun gear 51 and the first bevel gear 81 rotate coaxially, the first bevel gear 81 and the second bevel gear 82 are meshed and connected, the second bevel gear 82 is located below the first bevel gear 81, the bottom of the mounting groove 62 is fixedly provided with a fixing plate 83, the second bevel gear 82 is connected on the fixing plate 83 in a rotating manner, one side of the second bevel gear 82 is fixedly connected with a screw 84, one end of the screw 84, which is far away from the second bevel gear 82, is connected on the side wall of the mounting groove 62 in a rotating manner, the outer surface of the screw 84 is in threaded connection with a movable plate 85, the movable plate 85 is in sliding connection with the side wall of the mounting groove 62, one side of the movable plate 85 is provided with a cutter blade 86, and the cutter edge 61 is arranged on one side of the cutter cap 6, which is located on the cutter blade 86. The planetary gear set 5 respectively drives the cutter cap 6 and the blade adjusting device 8 to rotate, and drives the second bevel gear 82 to rotate through the first bevel gear 81, so as to drive the screw 84 to rotate, so that the movable plate 85 moves outwards, so as to drive the blade 86 to extend out from the cutter outlet 61, and when the blade 86 extends out, the blade rotates along with the cutter cap 6, so as to cut a pipeline.

Two the cross base 33 side is located positive and negative screw thread side of positive and negative tooth lead screw 32 respectively, when positive and negative tooth lead screw 32 rotated, can drive two the cross base 33 is in opposite directions or moves back on the back.

The utility model discloses a theory of operation does: when the device is used, the device is hung through the cable 1 and placed in an underground pipeline, all functions of underground cutting can be controlled through a bidirectional digital remote transmission communication system, the maximum flexibility of the device is ensured, manual intervention is performed on sudden conditions in the cutting process, the first motor 31 is controlled to rotate to drive the positive and negative threaded rods 32 to rotate, when the positive and negative threaded rods 32 rotate, the two cross bases 33 can be driven to move oppositely, the pushing plates 35 can be driven to move outwards synchronously through the adjusting support rods 34, the squeezing rods 36 can be pushed, the squeezing rods 36 can be driven to move outwards synchronously to squeeze the inner wall of the pipeline, the device is fixed on the inner wall of the pipeline, cutting shaking is avoided, the cutting cross section is irregular, the second motor 7 rotates to drive the planetary gear set 5 to rotate, the planetary gear set 5 drives the cutter cap 6 and the cutter blade adjusting device 8 to rotate respectively, the second bevel gear 82 rotates through the first bevel gear 81, the screw 84 is driven to rotate, the movable plate 85 moves outwards, the cutter blade 86 extends out of the cutter outlet 61, the cutter cap 6 rotates along with the cutter cap 6, the cutter cap, the pipeline cutting device is convenient and compact in operation, the underground pipeline cutting operation is more convenient and more convenient, the design is more suitable for the underground pipeline cutting operation, and the pipeline is more convenient and more convenient to be constructed.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A downhole pipe cutting device comprising a cable (1), characterized in that: cable (1) lower extreme fixed mounting has a first equipment section of thick bamboo (2), fixed mounting has fixing device (3) in a first equipment section of thick bamboo (2), a first equipment section of thick bamboo (2) lower extreme fixed mounting has a second equipment section of thick bamboo (4), a second equipment section of thick bamboo (4) below is provided with planetary gear set (5), a second equipment section of thick bamboo (4) internal fixed mounting second motor (7), planetary gear set (5) lower extreme fixed mounting has sword cap (6), set up blade adjusting device (8) in sword cap (6).

2. A downhole tubing cutting apparatus as claimed in claim 1, wherein: a supporting plate (22) is fixedly mounted on the upper portion of the inner wall of the first equipment barrel (2), and a plurality of movable openings (21) are uniformly formed in the side wall of the first equipment barrel (2).

3. A downhole tubing cutter assembly according to claim 1, wherein: fixing device (3) include first motor (31) and positive and negative tooth lead screw (32), first motor (31) fixed mounting is in backup pad (22) upper end, the output and positive and negative tooth lead screw (32) upper end fixed connection of first motor (31), both ends rotate respectively about positive and negative tooth lead screw (32) and connect and install two cross bases (33), two the four ends of cross base (33) are all rotated and are installed adjusting rod (34), per two corresponding the one end of adjusting rod (34) is all rotated jointly and is installed catch plate (35), and is a plurality of equal fixed mounting of catch plate (35) has extrusion stem (36), extrusion stem (36) slide in activity mouth (21).

4. A downhole tubing cutting apparatus as claimed in claim 1, wherein: planetary gear set (5) include sun gear (51), a plurality of planet wheel (52) and gear circle (53), gear circle (53) fixed connection is at nut for a knife (6) top, gear circle (53) rotate to be connected in second equipment section of thick bamboo (4) bottom, planet wheel (52) and gear circle (53) are all rotated and are connected in second equipment section of thick bamboo (4) bottom, sun gear (51) and the output shaft fixed connection of second motor (7).

5. A downhole tubing cutter assembly according to claim 4, wherein: the upper end of the knife cap (6) is provided with a mounting groove (62).

6. A downhole tubing cutter assembly according to claim 5, wherein: the blade adjusting device (8) comprises a first bevel gear (81) and a second bevel gear (82), the first bevel gear (81) is fixedly connected below the sun gear (51), the sun gear (51) and the first bevel gear (81) rotate coaxially, the first bevel gear (81) and the second bevel gear (82) are meshed and connected, the second bevel gear (82) is located below the first bevel gear (81), a fixing plate (83) is fixedly installed at the bottom of the mounting groove (62), the second bevel gear (82) is rotatably connected to the fixing plate (83), a screw (84) is fixedly connected to one side of the second bevel gear (82), one end, far away from the second bevel gear (82), of the screw (84) is rotatably connected to the side wall of the mounting groove (62), a movable plate (85) is connected to the outer surface of the screw (84) in a threaded mode, the movable plate (85) is slidably connected to the side wall of the mounting groove (62), a blade (86) is arranged on one side of the movable plate (85), and the cutter cap (6) is located on one side of the blade (86) and is provided with a knife outlet edge (61).

7. A downhole tubing cutter assembly according to claim 3, wherein: the two cross bases (33) are respectively positioned on the positive and negative thread sides of the positive and negative thread screw rod (32).