Pipe milling device for petroleum drilling and production

Abstract

The utility model provides a pipe milling device for petroleum drilling and production, which relates to the field of pipe milling devices and is characterized in that a pipe milling component, a flow guide component and a crushing component are arranged, a column body is mounted on external drilling equipment through a mounting joint during use, and then the column body sinks into a drilling well needing pipe milling; the pipe milling head rotating at a high speed dredges blocking impurities in a well through friction force generated by the friction ring, then the blocking impurities are smashed through the rotating smashing blades, and then the smashed blocking impurities are sprayed through the water spraying pipeline communicated with an external water source. The blockage is conveyed to the outside of the well along the water flow in the well, meanwhile, the water flow is guided by the first flow guide block and the second flow guide block when passing through the water spraying pipeline, the water flow is sprayed to the pipe milling head at a certain angle, the surface temperature of the pipe milling head can be reduced, and the service life of the pipe milling head is prolonged; the problem that in the prior art, blocked fragments are inconvenient to transport out of a well is solved.

Description

Technical Field

[0001] The utility model relates to the field of pipe milling devices, in particular to a pipe milling device for oil drilling. Background Art

[0002] During the construction of oil, gas and water wells in oil fields, when there are irregular moving fish in the well (broken drill bits and other drilling tool parts downhole) or pipeline collapse and blockage that need to be dealt with, a sleeve milling barrel is usually used to grind the moving fish or blockage into pieces to eliminate the impact of the fish on normal drilling operations.

[0003] After searching, in the prior art, the Chinese patent with patent announcement number CN211851737U discloses "a pipe milling device for oil drilling. Compared with the prior art, the advantages and positive effects of this utility model are that the spring in the clamping mechanism pushes the limit plate to drive the pressure rod to drive the pressure plate to clamp the fish, preventing it from rotating synchronously with the sleeve milling cylinder, effectively performing fast and effective milling on the fish, and improving the milling efficiency", but there are still the following defects:

[0004] (1) In actual use, the debris in the well can only be broken up, and it is inconvenient to take the broken debris out of the well, resulting in the risk of subsequent blockage;

[0005] (2) The inner wall of the well cannot be smoothed during actual use, resulting in the risk of collapse and blockage of the inner wall, which reduces the service life of the well.

[0006] Therefore, we make improvements on this and propose a pipe milling device for oil drilling. Utility Model Content

[0007] The purpose of the utility model is to address the problem that the current method can only break up the blocked debris in the well, but it is inconvenient to take out the broken fragments from the inside of the well, resulting in the risk of subsequent blockage and the inability to level the inner wall of the well, resulting in the risk of collapse and blockage of the inner wall, thereby reducing the service life of the well.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0009] Oil drills use pipe milling devices to improve the above problems.

[0010] The utility model is specifically as follows:

[0011] It comprises a column, a tube milling assembly is arranged on one side of the column, a flow guide assembly is arranged inside the tube milling assembly, a crushing assembly is arranged on one side of the column, an auxiliary assembly is arranged at the bottom of the crushing assembly, and a leveling assembly is arranged on one side of the column;

[0012] The pipe milling assembly includes a mounting joint, a pipe milling head, a friction ring and a water spray pipe. The mounting joint is arranged on the top of the column, the pipe milling head is fixedly connected to the bottom of the column, a plurality of friction rings are fixedly connected to one side of the pipe milling head, and a plurality of water spray pipes are opened inside the column.

[0013] As a preferred technical solution of the utility model, the guide assembly includes a first guide block, a second guide block and a guide surface, the first guide block is fixedly connected to one side of the water spray pipe, the second guide block is fixedly connected to one side of the water spray pipe and used in conjunction with the first guide block, and the guide surface is arranged on one side of the second guide block and is used to guide the water flow.

[0014] As a preferred technical solution of the utility model, the crushing assembly includes a crushing ring, an inclined surface and crushing blades. The crushing ring is fixedly connected to the bottom of the column, the inclined surface is arranged on one side of the crushing ring, and the two crushing blades are fixedly connected to one side of the inclined surface and are used in conjunction with each other.

[0015] As a preferred technical solution of the utility model, the auxiliary component includes an auxiliary ring and an auxiliary pressure wheel, the auxiliary ring is fixedly connected to the bottom of the crushing ring, and a plurality of auxiliary pressure wheels are arranged on the inner side of the auxiliary ring.

[0016] As a preferred technical solution of the utility model, the leveling assembly includes a leveling block, a connecting groove, a leveling wheel and a leveling blade. Multiple leveling blocks are fixedly connected to one side of the column, three connecting grooves are opened on one side of the leveling block, the leveling wheel is arranged inside the connecting groove, and multiple leveling blades are fixedly connected to one side of the leveling wheel.

[0017] As a preferred technical solution of the utility model, a friction ball is fixedly connected to one side of the auxiliary pressure wheel, and the number of the friction balls is multiple and evenly distributed on one side of the auxiliary pressure wheel.

[0018] As a preferred technical solution of the utility model, a cone is provided at the bottom of the leveling wheel, a leveling ring is fixedly connected to one side of the cone, and the leveling rings are multiple and evenly distributed on one side of the cone.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] In the solution of the utility model:

[0021] 1. By setting a pipe milling assembly, a guide assembly and a crushing assembly, the column is installed on the external drilling equipment through the installation joint when in use, and then the column is sunk into the inside of the drilling well that needs pipe milling. The high-speed rotating pipe milling head dredges the blocked debris in the well through the friction force generated by the friction ring, and then the blockage is crushed by the rotating crushing blades, and then the crushed blockage is sprayed through the water spray pipe connected to the external water source, so that the blockage is transported from the inside of the well to the outside of the well along the water flow. At the same time, when passing through the water spray pipe, the water flow will be guided by the first guide block and the second guide block, and sprayed to the pipe milling head at a certain angle, which can cool the surface temperature of the pipe milling head and improve the service life of the pipe milling head, solving the problem of inconvenient transportation of blocked fragments out of the well in the prior art;

[0022] 2. By setting auxiliary components, leveling components, friction balls, cones and leveling rings, when the column rotates to crush and clean the blockage during use, it will also drive the auxiliary pressure wheel to rotate. The auxiliary pressure wheel crushes the blockage again through the friction balls on the surface, thereby improving the efficiency of clearing the blockage. The rotation of the column will also drive the leveling block to rotate. The leveling block grinds and maintains the inside of the well through multiple leveling wheels, thereby improving the stability of the well inner wall structure. At the same time, the cone and leveling ring can crush the blockage fragments that move with the water flow again to prevent the well from being blocked again, thereby solving the problem in the prior art that it is inconvenient to maintain the inner wall of the well, resulting in an unstable and easily collapsed inner wall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of the pipe milling device for oil drilling provided by the utility model;

[0024] Figure 2 A right side view of the pipe milling device for oil drilling provided by the utility model;

[0025] Figure 3 The utility model provides a pipe milling device for oil drilling Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0026] Figure 4 The utility model provides a pipe milling device for oil drilling Figure 3 Schematic diagram of the local structure;

[0027] Figure 5 The utility model provides a pipe milling device for oil drilling Figure 3 Schematic diagram of the local structure.

[0028] Indicated in the figure:

[0029] 1. Column; 2. Pipe milling assembly; 3. Guide assembly; 4. Crushing assembly; 5. Auxiliary assembly; 6. Leveling assembly; 201. Mounting joint; 202. Pipe milling head; 203. Friction ring; 204. Water spray pipe; 301. First guide block; 302. Second guide block; 303. Guide surface; 401. Crushing ring; 402. Inclined surface; 403. Crushing blade; 501. Auxiliary ring; 502. Auxiliary pressure wheel; 601. Leveling block; 602. Connecting groove; 603. Leveling wheel; 604. Leveling blade; 7. Friction ball; 8. Cone; 9. Leveling ring. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0031] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, this embodiment proposes a pipe milling device for oil drilling, comprising a column 1, a pipe milling assembly 2 is arranged on one side of the column 1, a flow guide assembly 3 is arranged inside the pipe milling assembly 2, a crushing assembly 4 is arranged on one side of the column 1, an auxiliary assembly 5 is arranged at the bottom of the crushing assembly 4, and a leveling assembly 6 is arranged on one side of the column 1;

[0035] The pipe milling assembly 2 includes a mounting joint 201, a pipe milling head 202, a friction ring 203 and a water spray pipe 204. The mounting joint 201 is arranged at the top of the column 1, the pipe milling head 202 is fixedly connected to the bottom of the column 1, a plurality of friction rings 203 are fixedly connected to one side of the pipe milling head 202, and a plurality of water spray pipes 204 are opened inside the column 1. When in use, the column 1 is installed on the external drilling equipment through the mounting joint 201, and then the column 1 is sunk into the well that needs pipe milling. The high-speed rotating pipe milling head 202 clears the blocked debris in the well through the friction force generated by the friction ring 203, and then sprays the crushed blockage through the water spray pipe 204 connected to the external water source, so that the blockage is transported from the inside of the well to the outside of the well along the water flow.

[0036] like Figure 4 As shown, as a preferred embodiment, on the basis of the above method, further, the guide assembly 3 includes a first guide block 301, a second guide block 302 and a guide surface 303, the first guide block 301 is fixedly connected to one side of the water spray pipe 204, the second guide block 302 is fixedly connected to one side of the water spray pipe 204 and is used in conjunction with the first guide block 301, the guide surface 303 is arranged on one side of the second guide block 302 and is used to guide the water flow, when in use, the water flow will pass through the first guide block 301 and the second guide block 302 when passing through the water spray pipe 204, and spray to the pipe milling head 202 at a certain angle, which can cool the surface temperature of the pipe milling head 202 and improve the service life of the pipe milling head 202.

[0037] like Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, the crushing assembly 4 includes a crushing ring 401, an inclined surface 402 and a crushing blade 403, the crushing ring 401 is fixedly connected to the bottom of the column 1, the inclined surface 402 is arranged on one side of the crushing ring 401, and the two crushing blades 403 are fixedly connected to one side of the inclined surface 402 and used in cooperation with each other. When in use, the rotating crushing blades 403 can crush the blockage, thereby improving the crushing efficiency of the pipe milling head 202.

[0038] like Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, the auxiliary component 5 includes an auxiliary ring 501 and an auxiliary pressure wheel 502, the auxiliary ring 501 is fixedly connected to the bottom of the crushing ring 401, and multiple auxiliary pressure wheels 502 are arranged on the inner side of the auxiliary ring 501. When in use, when the column 1 rotates to crush and clean the blockage, it will also drive the auxiliary pressure wheel 502 to rotate, and the auxiliary pressure wheel 502 will crush the blockage again, thereby improving the efficiency of clearing the blockage.

[0039] like Figure 5As shown, as a preferred embodiment, on the basis of the above method, further, the leveling component 6 includes a leveling block 601, a connecting groove 602, a leveling wheel 603 and a leveling blade 604, multiple leveling blocks 601 are fixedly connected to one side of the column 1, three connecting grooves 602 are opened on one side of the leveling block 601, the leveling wheel 603 is arranged inside the connecting groove 602, and multiple leveling blades 604 are fixedly connected to one side of the leveling wheel 603. When in use, the column 1 rotates and the leveling block 601 is driven to rotate at the same time. The leveling block 601 uses multiple leveling wheels 603 to grind and maintain the inside of the well, thereby improving the stability of the inner wall structure of the well.

[0040] like Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, one side of the auxiliary pressure wheel 502 is fixedly connected with a friction ball 7, and the number of the friction balls 7 is multiple and evenly distributed on one side of the auxiliary pressure wheel 502. When in use, the auxiliary pressure wheel 502 crushes the blockage by the friction balls 7 arranged on the surface, which can improve the efficiency of clearing the blockage.

[0041] like Figure 5 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a cone 8 is provided at the bottom of the leveling wheel 603, and a leveling ring 9 is fixedly connected to one side of the cone 8. The number of the leveling rings 9 is multiple and evenly distributed on one side of the cone 8. When in use, the cone 8 and the leveling ring 9 are used in conjunction with the leveling wheel 603, which can crush the fragments of the blockage moving with the water flow again to prevent the well from being blocked again.

[0042] Specifically, when the pipe milling device of the oil drill is used: the column 1 is installed on the external drilling equipment through the installation joint 201, and then the column 1 is sunk into the inside of the drilling well that needs pipe milling. The high-speed rotating pipe milling head 202 dredges the blocked debris in the well through the friction force generated by the friction ring 203, and then the blockage is crushed by the rotating crushing blade 403, and then the crushed blockage is sprayed through the water spray pipe 204 connected to the external water source, so that the blockage is transported from the inside of the well to the outside of the well along the water flow. At the same time, when the water flows through the water spray pipe 204, it will be guided by the first guide block 301 and the second guide block 302 to form a Spraying at the pipe milling head 202 at a fixed angle can cool the surface temperature of the pipe milling head 202 and increase the service life of the pipe milling head 202. When the column 1 rotates to crush and clean the blockage, it will also drive the auxiliary pressure wheel 502 to rotate. The auxiliary pressure wheel 502 crushes the blockage again through the friction ball 7 on the surface, thereby improving the efficiency of clearing the blockage. The rotation of the column 1 will also drive the leveling block 601 to rotate. The leveling block 601 grinds and maintains the inside of the well through multiple leveling wheels 603, thereby improving the stability of the inner wall structure of the well. At the same time, the cone 8 and the leveling ring 9 can crush the blockage fragments moving with the water flow again to prevent the well from being blocked again.

[0043] All technical features in this embodiment can be freely combined according to actual needs.

[0044] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A pipe milling device for oil drilling, comprising a column (1), characterized in that: A tube milling assembly (2) is arranged on one side of the column (1), a flow guide assembly (3) is arranged inside the tube milling assembly (2), a crushing assembly (4) is arranged on one side of the column (1), an auxiliary assembly (5) is arranged at the bottom of the crushing assembly (4), and a leveling assembly (6) is arranged on one side of the column (1); The pipe milling assembly (2) comprises a mounting joint (201), a pipe milling head (202), a friction ring (203) and a water spray pipe (204); the mounting joint (201) is arranged at the top of the column (1); the pipe milling head (202) is fixedly connected to the bottom of the column (1); a plurality of friction rings (203) are fixedly connected to one side of the pipe milling head (202); and a plurality of water spray pipes (204) are opened inside the column (1).

2. A pipe milling device for oil drilling according to claim 1, characterized in that: The flow guide assembly (3) comprises a first flow guide block (301), a second flow guide block (302) and a flow guide surface (303); the first flow guide block (301) is fixedly connected to one side of a water spray pipe (204); the second flow guide block (302) is fixedly connected to one side of the water spray pipe (204) and is used in conjunction with the first flow guide block (301); and the flow guide surface (303) is arranged on one side of the second flow guide block (302) and is used to guide water flow.

3. The pipe milling device for oil drilling according to claim 1, characterized in that: The pulverizing assembly (4) comprises a pulverizing ring (401), an inclined surface (402) and pulverizing blades (403); the pulverizing ring (401) is fixedly connected to the bottom of the column (1); the inclined surface (402) is arranged on one side of the pulverizing ring (401); and the two pulverizing blades (403) are fixedly connected to one side of the inclined surface (402) and are used in conjunction with each other.

4. A pipe milling device for oil drilling according to claim 3, characterized in that: The auxiliary component (5) comprises an auxiliary ring (501) and an auxiliary pressure wheel (502); the auxiliary ring (501) is fixedly connected to the bottom of the crushing ring (401); and a plurality of auxiliary pressure wheels (502) are arranged on the inner side of the auxiliary ring (501).

5. The pipe milling device for oil drilling according to claim 1, characterized in that: The leveling assembly (6) comprises a leveling block (601), a connecting groove (602), a leveling wheel (603) and a leveling blade (604); a plurality of the leveling blocks (601) are fixedly connected to one side of the column (1); three connecting grooves (602) are opened on one side of the leveling block (601); the leveling wheel (603) is arranged inside the connecting groove (602); and a plurality of the leveling blades (604) are fixedly connected to one side of the leveling wheel (603).

6. A pipe milling device for oil drilling according to claim 4, characterized in that: A friction ball (7) is fixedly connected to one side of the auxiliary pressing wheel (502); the friction balls (7) are multiple and evenly distributed on one side of the auxiliary pressing wheel (502).

7. The pipe milling device for oil drilling according to claim 5, characterized in that: A cone (8) is provided at the bottom of the leveling wheel (603), and a leveling ring (9) is fixedly connected to one side of the cone (8), and the number of the leveling rings (9) is multiple and evenly distributed on one side of the cone (8).

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