Packer machining auxiliary tool for oil field well completion

Abstract

The utility model discloses an oil field well completion packer machining auxiliary tool which comprises a bottom plate, the two sides of the bottom plate are each provided with an installation mechanism used for installing the bottom plate to a corresponding machining face, and the top of the bottom plate is provided with a length adjusting mechanism suitable for clamping packers of different lengths. An outer diameter clamping mechanism for clamping packers with different outer diameters is arranged at the top of the bottom plate; by means of the collaborative design of the integrated length adjusting mechanism, the outer diameter clamping mechanism and the inner diameter clamping mechanism, dynamic adaptation of parameters of the length and the outer diameter of the packer is achieved, the adaptation range is enlarged compared with a traditional tool, and the specification requirements of the packer for oil field well completion can be met. The convex clamping plate driven by the servo electric cylinder is matched with the concave clamping plate controlled by the electric sliding rail to form a three-point positioning system, so that the coaxiality error of the packer is controlled within the range, compared with a traditional tool, the precision is improved, and the problem of installation deflection of a sealing element is avoided.

Description

Technical Field

[0001] This utility model relates to the field of packer processing technology, specifically to an auxiliary tooling for processing packers used in oilfield well completion. Background Technology

[0002] Oilfield well completion packer machining auxiliary tooling is a set of supporting tools and equipment specifically used for packer manufacturing, assembly and performance verification. It aims to improve the machining accuracy, assembly efficiency and functional reliability of core packer components (such as sealing elements, propulsion mechanisms, etc.). Through precise positioning, efficient assembly and rigorous testing and verification, it ensures the reliability of packers in complex downhole environments and is an indispensable technical support in the industrial production system of packers.

[0003] Existing auxiliary tooling for packer processing in oilfield well completion is generally based on a fixed-size adaptation design, which can only meet the clamping requirements of packers with specific inner and outer diameters. In actual production, frequent changes in tooling specifications to accommodate packers with varying sizes result in lengthy tooling disassembly, assembly, and debugging times, leading to production line delays. Repeated positioning and calibration are prone to introducing human error, causing misalignment of sealing elements or excessive clearance in the propulsion mechanism, ultimately affecting the sealing performance and downhole reliability of the packer. Therefore, we need to propose an auxiliary tooling for packer processing in oilfield well completion. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary tooling for processing packers for oilfield well completion, which has the advantages of dynamic size adaptation, reduced manual intervention and improved processing consistency, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary tooling for processing packers for oilfield well completion, comprising a base plate, with mounting mechanisms on both sides of the base plate for mounting the base plate onto corresponding processing surfaces, a length adjustment mechanism on the top of the base plate for clamping packers of different lengths, an outer diameter clamping mechanism on the top of the base plate for clamping packers of different outer diameters, and an inner diameter clamping mechanism at one end of the length adjustment mechanism for supporting packers of different inner diameters.

[0006] Preferably, the mounting mechanism includes connecting blocks, which are disposed on both sides of the base plate. Connecting holes are formed on the surface of the connecting blocks and penetrate through the connecting blocks. Mounting bolts are disposed inside the connecting holes.

[0007] Preferably, the length adjustment mechanism includes a first electric slide rail, which is disposed on the top of the base plate. Limit plates are provided at both ends of the first electric slide rail, and a mounting plate is provided on one side of the output end of the first electric slide rail.

[0008] Preferably, the outer diameter clamping mechanism includes a mounting block, which is disposed on the top of the base plate. A concave clamping plate is provided on one side of the mounting block. A connecting groove is formed on the surface of the mounting block and extends through the mounting block. A housing is provided on the side of the mounting block away from the concave clamping plate, and a power mechanism is provided on the side of the mounting block away from the concave clamping plate.

[0009] Preferably, the power mechanism includes a second electric slide rail, which is disposed on the side of the mounting block away from the concave clamping plate. A connecting plate is disposed on one side of the output end of the second electric slide rail, and a connecting rod is disposed on one side of the connecting plate. The connecting rod passes through the connecting groove and connects to one side of the concave clamping plate.

[0010] Preferably, the inner diameter clamping mechanism includes a convex clamping plate, which is disposed on one side of the mounting plate. A servo electric cylinder is disposed on one side of the convex clamping plate and connected to the output end of the servo electric cylinder. A clamping plate is disposed on one side of the convex clamping plate.

[0011] Preferably, the surfaces of the first and second electric slide rails are coated with a waterproof oil film.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model achieves dynamic adaptation of packer length and outer diameter parameters through the integrated design of length adjustment mechanism, outer diameter clamping mechanism and inner diameter clamping mechanism. The adaptation range is expanded compared with traditional tooling and can cover the specifications of packers used for oilfield well completion.

[0014] 2. This utility model uses a servo-driven electric cylinder-driven convex clamping plate and an electric slide rail-controlled concave clamping plate to form a three-point positioning system, which keeps the coaxiality error of the packer within a certain range, improving accuracy compared to traditional tooling and effectively avoiding the problem of misaligned installation of sealing elements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the outer casing of this utility model;

[0017] Figure 3 This is a structural diagram of the outer diameter clamping mechanism of this utility model;

[0018] Figure 4 This is a structural diagram of the inner diameter clamping mechanism of this utility model.

[0019] In the diagram: 1. Base plate; 2. Connecting block; 3. Connecting hole; 4. Mounting bolt; 5. First electric slide rail; 6. Limiting plate; 7. Mounting plate; 8. Mounting block; 9. Concave clamping plate; 10. Connecting groove; 11. Outer shell; 12. Second electric slide rail; 13. Connecting plate; 14. Connecting rod; 15. Convex clamping plate; 16. Servo electric cylinder; 17. Clamping plate; 18. Waterproof oil film. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model provides a technical solution: an auxiliary tooling for processing packers for oilfield well completion, including a base plate 1. Both sides of the base plate 1 are provided with mounting mechanisms for installing the base plate 1 onto corresponding processing surfaces. The mounting mechanisms include connecting blocks 2, which are located on both sides of the base plate 1. Connecting holes 3 are formed on the surface of the connecting blocks 2 and penetrate through them. Mounting bolts 4 are installed inside the connecting holes 3. The processing table of the processing equipment generally has pre-drilled threaded holes for fixture installation. The base plate 1 is fixed to the processing table by the mounting bolts 4 penetrating the connecting holes 3.

[0022] The top of the base plate 1 is equipped with a length adjustment mechanism for clamping packers of different lengths. The length adjustment mechanism includes a first electric slide rail 5, which is located on the top of the base plate 1. Limit plates 6 are provided at both ends of the first electric slide rail 5, and a mounting plate 7 is provided on one side of the output end of the first electric slide rail 5. When clamping packers of different lengths, the output end of the first electric slide rail 5 moves to accommodate packers of different lengths.

[0023] The top of the base plate 1 is equipped with an outer diameter clamping mechanism for clamping packers of different outer diameters. The outer diameter clamping mechanism includes a mounting block 8, which is located on the top of the base plate 1. A concave clamping plate 9 is provided on one side of the mounting block 8. A connecting groove 10 is formed on the surface of the mounting block 8 and extends through it. A housing 11 is provided on the side of the mounting block 8 away from the concave clamping plate 9, and a power mechanism is provided on the same side. The concave clamping plate 9 contacts and clamps the outer wall of the packer.

[0024] The power mechanism includes a second electric slide rail 12, which is located on the side of the mounting block 8 away from the concave clamping plate 9. A connecting plate 13 is provided on one side of the output end of the second electric slide rail 12, and a connecting rod 14 is provided on one side of the connecting plate 13. The connecting rod 14 passes through the connecting groove 10 and connects to one side of the concave clamping plate 9. When it is necessary to clamp the packer, the second electric slide rail 12 is activated, and the output end of the second electric slide rail 12 drives the connecting plate 13 to move, thereby causing the connecting rod 14 to drive the concave clamping plate 9 to contact the outer wall of the packer and clamp it.

[0025] One end of the length adjustment mechanism is equipped with an inner diameter clamping mechanism for holding packers of different inner diameters. The inner diameter clamping mechanism includes a convex clamping plate 15, which is disposed on one side of the mounting plate 7. A servo cylinder 16 is mounted on one side of the convex clamping plate 15 and connected to its output end. A locking plate 17 is also mounted on one side of the convex clamping plate 15. The convex clamping plate 15 contacts the inner wall of the packer, and the locking plate 17 prevents one end of the packer from directly contacting the output end of the servo cylinder 16, which could damage the servo cylinder 16. When the packer needs to be clamped, the output end of the servo cylinder 16 retracts, causing the convex clamping plate 15 to contact the inner wall of the packer, thus coordinating with the outer diameter clamping mechanism to limit the position of the packer.

[0026] The surfaces of the first electric slide rail 5 and the second electric slide rail 12 are coated with a waterproof oil film 18. The waterproof oil film 18 is used to slow down the corrosion of the first electric slide rail 5 and the second electric slide rail 12 by the coolant used in the processing of the packer, thereby increasing their service life.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary tooling for processing packers for oilfield well completion, comprising a base plate (1), characterized in that: The base plate (1) is provided with mounting mechanisms on both sides for mounting the base plate (1) onto the corresponding processing surface. The top of the base plate (1) is provided with a length adjustment mechanism for clamping packers of different lengths. The top of the base plate (1) is provided with an outer diameter clamping mechanism for clamping packers of different outer diameters. One end of the length adjustment mechanism is provided with an inner diameter clamping mechanism for clamping packers of different inner diameters.

2. The auxiliary tooling for processing packers for oilfield well completion according to claim 1, characterized in that: The installation mechanism includes a connecting block (2), which is disposed on both sides of the base plate (1). The surface of the connecting block (2) is provided with a connecting hole (3) that penetrates the connecting block (2). The interior of the connecting hole (3) is provided with a mounting bolt (4).

3. The auxiliary tooling for processing packers for oilfield well completion according to claim 2, characterized in that: The length adjustment mechanism includes a first electric slide rail (5), which is set on the top of the base plate (1). Limit plates (6) are provided at both ends of the first electric slide rail (5), and a mounting plate (7) is provided on one side of the output end of the first electric slide rail (5).

4. The auxiliary tooling for processing packers for oilfield well completion according to claim 3, characterized in that: The outer diameter clamping mechanism includes a mounting block (8), which is located on the top of the base plate (1). A concave clamping plate (9) is provided on one side of the mounting block (8). A connecting groove (10) is provided on the surface of the mounting block (8) and extends through the mounting block (8). A housing (11) is provided on the side of the mounting block (8) away from the concave clamping plate (9). A power mechanism is provided on the side of the mounting block (8) away from the concave clamping plate (9).

5. The auxiliary tooling for processing packers for oilfield well completion according to claim 4, characterized in that: The power mechanism includes a second electric slide rail (12), which is located on the side of the mounting block (8) away from the concave clamp (9). A connecting plate (13) is provided on one side of the output end of the second electric slide rail (12), and a connecting rod (14) is provided on one side of the connecting plate (13). The connecting rod (14) passes through the connecting groove (10) and connects to one side of the concave clamp (9).

6. The auxiliary tooling for processing packers for oilfield well completion according to claim 5, characterized in that: The inner diameter clamping mechanism includes a convex clamping plate (15), which is disposed on one side of the mounting plate (7). A servo electric cylinder (16) is disposed on one side of the convex clamping plate (15) and connected to the output end of the servo electric cylinder (16). A clamping plate (17) is disposed on one side of the convex clamping plate (15).

7. The auxiliary tooling for processing packers for oilfield well completion according to claim 6, characterized in that: The surfaces of the first electric slide rail (5) and the second electric slide rail (12) are coated with a waterproof oil film (18).

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