Drilling and grinding equipment for coiled tubing composite bridge plug for oil exploitation

Abstract

The utility model provides drilling and grinding equipment of a coiled tubing composite bridge plug for oil exploitation, which relates to the technical field of drilling and grinding equipment and comprises an oil tube, a reverse circulation valve is arranged at one end of the oil tube, a double-clack one-way valve is arranged at one end of the reverse circulation valve, and a screw drill is arranged at one end of the double-clack one-way valve. A set of cavities are formed in one end of the screw drill, limiting mechanisms are installed in the cavities, a milling shoe is installed at one end of the screw drill in a threaded connection mode, and a set of limiting grooves are formed in the surface of the milling shoe. According to the device, the phenomenon that the milling shoe is loosened in the working process of the milling shoe and the screw drill can be effectively avoided, if the milling shoe needs to be replaced, a worker can push a push block to drive a limiting rod to move, and then the limiting rod can be separated from the interior of a limiting groove, so that the milling shoe is taken down, the operation steps are very simple and convenient, and the practicability is high. And through the design, the practicability is greatly improved, and the service life of the equipment is indirectly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling and grinding equipment, and more specifically, particularly relates to a drilling and grinding equipment for a continuous oil pipe composite bridge plug used in oil exploitation. Background Art

[0002] The drilling and grinding equipment for coiled tubing composite bridge plugs is a device used for drilling and grinding coiled tubing composite bridge plugs. In the field of oil exploration and production, coiled tubing composite bridge plugs are used to plug some sections in oil wells to adjust the production capacity of oil wells or perform other process operations. When these composite bridge plugs need to be removed or processed, drilling and grinding equipment is required to perform the operation.

[0003] Based on the above, the inventors have discovered the following problems: during the installation of the existing drilling and grinding equipment, since the grinding shoe is connected to the screw drill through a thread and used, when the underground composite bridge plug is drilled and crushed for a long time, the grinding shoe and the screw drill may become loose, which will cause trouble to the staff and reduce the crushing efficiency, which is quite inconvenient.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a drilling and grinding equipment for a continuous tubing composite bridge plug for oil production is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0005] The purpose and effect of the drilling and grinding equipment of the utility model for a continuous tubing composite bridge plug used in oil production are achieved by the following specific technical means:

[0006] A drilling and grinding device for a continuous oil pipe composite bridge plug for oil extraction, comprising an oil pipe, a reverse circulation valve is arranged at one end of the oil pipe, a double-flap one-way valve is arranged at one end of the reverse circulation valve, a screw drill is arranged at one end of the double-flap one-way valve, a group of chambers are opened at one end of the screw drill, a limiting mechanism is installed inside the chamber, the limiting mechanism comprises a spring, a limiting block is fitted on one side of the spring, a limiting rod is fixedly installed on one end of the limiting block, one end of the limiting rod passes through the screw drill and extends to the outside, a grinding shoe is installed at one end of the screw drill through a threaded connection, and a group of limiting grooves are opened on the surface of the grinding shoe.

[0007] Furthermore, a push block is fixedly mounted on the surface of the limiting rod, and a magnet 1 is fixedly mounted on one end of the limiting rod.

[0008] Furthermore, the limiting rod matches the limiting groove.

[0009] Furthermore, a second magnet is fixedly mounted on the inner wall of the limiting groove, and the second magnet is magnetically connected to the first magnet.

[0010] Furthermore, the grinding shoe is a six-blade high-efficiency grinding shoe.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] Through the cooperation between the limit rod and the limit groove, when the staff installs the equipment, they can directly install the grinding shoe into the inside of the screw drill through the threaded rotation to fix it, and then the limit rod will automatically be stuck in the limit groove under the action of the spring, thereby effectively avoiding the loosening of the grinding shoe during the operation of the grinding shoe and the screw drill. If the grinding shoe needs to be replaced, the staff can push the push block to drive the limit rod to move, and the limit rod can be disengaged from the inside of the limit groove, thereby removing the grinding shoe. The operation steps are very simple, and this design greatly increases the practicality and indirectly improves the service life of the equipment.

[0013] Through the cooperation between magnet one and magnet two, the connection between the limit rod and the limit slot can be made more stable, and it is also convenient for the staff to install it quickly, which indirectly brings convenience to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional schematic diagram of a drilling and grinding device for a continuous oil pipe composite bridge plug used for oil production.

[0015] Figure 2 The utility model is a planar cross-sectional schematic diagram of a drilling and grinding device for a continuous oil pipe composite bridge plug used for oil production.

[0016] Figure 3 The utility model is a drilling and grinding device for a continuous oil pipe composite bridge plug used in oil production. Figure 2 Enlarged schematic diagram of point A.

[0017] Figure 4 The utility model is a drilling and grinding device for a continuous oil pipe composite bridge plug used in oil production. Figure 2 Enlarged schematic diagram of point B.

[0018] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0019] 1. Oil pipe; 2. Reverse circulation valve; 3. Double-flap check valve; 4. Screw drill; 5. Magnet 1; 6. Limit groove; 7. Grinding shoe; 8. Magnet 2; 9. Chamber; 10. Spring; 11. Limit block; 12. Limit rod; 13. Push block. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example:

[0024] As attached Figure 1 To Attachment Figure 4 As shown:

[0025] The utility model provides a drilling and grinding device for a continuous oil pipe composite bridge plug for oil exploitation, comprising an oil pipe 1, one end of the oil pipe 1 is provided with a reverse circulation valve 2, one end of the reverse circulation valve 2 is provided with a double-flap one-way valve 3, one end of the double-flap one-way valve 3 is provided with a screw drill 4, one end of the screw drill 4 is provided with a group of chambers 9, a limiting mechanism is installed inside the chamber 9, the limiting mechanism comprises a spring 10, one side of the spring 10 is fitted with a limiting block 11, one end of the limiting block 11 is fixedly installed with a limiting rod 12, one end of the limiting rod 12 passes through the screw drill 4 and extends to the outside, one end of the screw drill 4 is provided with a grinding shoe 7 through a threaded connection, and the surface of the grinding shoe 7 is provided with a group of limiting grooves 6.

[0026] Among them, a push block 13 is fixedly installed on the surface of the limiting rod 12, and a magnet 5 is fixedly installed on one end of the limiting rod 12.

[0027] Among them, the limit rod 12 matches the limit groove 6; through the cooperation between the limit rod 12 and the limit groove 6, when the staff installs the equipment, they can directly install the grinding shoe 7 to the inside of the screw drill 4 through threaded rotation for fixation, and then the limit rod 12 will automatically snap into the limit groove 6 under the action of the spring 10, thereby effectively avoiding the loosening of the grinding shoe 7 during the working process of the grinding shoe 7 and the screw drill 4. If the grinding shoe 7 needs to be replaced, the staff can push the push block 13 to drive the limit rod 12 to move, so that the limit rod 12 can be disengaged from the inside of the limit groove 6, thereby removing the grinding shoe 7. The operation steps are very simple, and this design greatly increases the practicality and indirectly improves the service life of the equipment.

[0028] Among them, a magnet 2 8 is fixedly installed on the inner wall of the limit groove 6, and the magnet 2 8 is connected to the magnet 1 5 through magnetism; through the cooperation between the magnet 1 5 and the magnet 2 8, the connection between the limit rod 12 and the limit groove 6 can be made more stable, and it is also convenient for the staff to install it quickly, which indirectly brings convenience to the staff.

[0029] The grinding shoe 7 is a six-blade high-efficiency grinding shoe.

[0030] The specific usage and function of this embodiment are as follows:

[0031] When the tool is installed and used, the staff needs to check the internal components or structures of the device. After the inspection is correct, it can be installed and used normally. First, when the staff installs the device, the grinding shoe 7 can be directly installed to the inside of the screw drill 4 by rotating the thread, and then the limiting rod 12 will automatically fit into the limiting groove 6 under the action of the spring 10, thereby effectively avoiding the loosening of the grinding shoe 7 and the screw drill 4 during the working process. If the grinding shoe 7 needs to be replaced, the staff can push the push block 13 to drive the limiting rod 12 to move, so that the limiting rod 12 can be disengaged from the inside of the limiting groove 6, thereby removing the grinding shoe 7. The operation steps are very simple, and the design greatly increases the practicality and indirectly improves the service life of the device. At the same time, through the cooperation between the magnet 1 5 and the magnet 2 8, the connection between the limiting rod 12 and the limiting groove 6 can be made more stable, which is also convenient for the staff to quickly install it, which indirectly brings convenience to the staff. If it needs to be used again, just repeat the above operation.

[0032] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

Claims

1. A drilling and grinding device for a continuous tubing composite bridge plug for oil production, comprising an oil pipe (1), characterized in that: A reverse circulation valve (2) is arranged at one end of the oil pipe (1), a double-flap check valve (3) is arranged at one end of the reverse circulation valve (2), a screw drill (4) is arranged at one end of the double-flap check valve (3), a group of chambers (9) are opened at one end of the screw drill (4), a limiting mechanism is installed inside the chamber (9), the limiting mechanism comprises a spring (10), a limiting block (11) is installed on one side of the spring (10), a limiting rod (12) is fixedly installed on one end of the limiting block (11), one end of the limiting rod (12) passes through the screw drill (4) and extends to the outside, a grinding shoe (7) is installed on one end of the screw drill (4) through a threaded connection, and a group of limiting grooves (6) are opened on the surface of the grinding shoe (7).

2. The drilling and grinding equipment for a coiled tubing composite bridge plug for oil production as claimed in claim 1, characterized in that: A push block (13) is fixedly mounted on the surface of the limiting rod (12), and a magnet 1 (5) is fixedly mounted on one end of the limiting rod (12).

3. The drilling and grinding equipment for a coiled tubing composite bridge plug for oil production as claimed in claim 2, characterized in that: The limiting rod (12) matches the limiting groove (6).

4. The drilling and grinding equipment for a coiled tubing composite bridge plug for oil production as claimed in claim 2, characterized in that: A second magnet (8) is fixedly mounted on the inner wall of the limiting groove (6), and the second magnet (8) is magnetically connected to the first magnet (5).

5. The drilling and grinding equipment for a coiled tubing composite bridge plug for oil production as claimed in claim 1, characterized in that: The grinding shoe (7) is a six-blade high-efficiency grinding shoe.

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