Electric direct-driving-force faucet device for well drilling and workover operation

Abstract

The invention relates to the technical field of power faucets, in particular to an electric direct-driving-force faucet device for well drilling and workover operation, a permanent magnet synchronous motor is adopted for providing power, a good foundation can be laid for achieving automation and intellectualization through electric signals, and a rotating mechanism installed at the bottom of the permanent magnet synchronous motor can rotate by 360 degrees; the back-up tong mechanism is used for achieving the automatic screwing-on and screwing-off functions of a center shaft and a drilling tool connector, meanwhile, the forward-inclining function and the backward-inclining function of the inclining mechanism are combined with 360-degree rotation to achieve dynamic drilling tool grabbing, unnecessary potential safety hazards caused when drilling crew field workers use hydraulic tongs for screwing-on and screwing-off are avoided, the labor intensity of the field workers is reduced, and the working efficiency is improved. The execution structure assembly is arranged, the mechanism can achieve the well bottom blowout prevention effect, when the well bottom blowout phenomenon occurs, a blowout prevention system of the execution mechanism can be automatically started to prevent blowout, and on-site safety accidents can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of power swivels, and in particular to an electric direct-drive power swivel device used for well drilling and repairing operations. Background Art

[0002] The traditional power faucet is a power device that integrates hydraulics, mechanics, and pneumatics. After years of development, it has become a very mature product and is widely used in a variety of well repair operations, such as providing suitable speed and torque for milling operations and serving as a power device for salvage devices. Up to now, hydraulic power faucets have paid more and more attention to the combination of electronic control technology and hydraulic transmission. The speed sensor, pressure sensor, and flow sensor are used to centrally display various parameters such as speed, drilling pressure, and pump pressure to achieve real-time monitoring of well repair operations, improve operating efficiency, and maximize construction safety.

[0003] However, it is still difficult to fully adopt hydraulic control to realize automated and intelligent drilling and repairing with current technology, and it is even more difficult to interlock the power faucet with the drilling rig.

[0004] Therefore, in view of the shortcomings of the prior art, it is necessary to provide an electric direct-drive power faucet device for drilling and well repairing operations to solve the shortcomings of the prior art. Summary of the invention

[0005] The purpose of the present invention is to avoid the shortcomings of the prior art and provide an electric direct-drive power faucet device for drilling and well repair operations. The present application adopts a permanent magnet synchronous motor to provide power, and can lay a good foundation for realizing automation and intelligence through electrical signals. The rotating mechanism installed at the bottom of the permanent magnet synchronous motor can realize 360° rotation, and the back clamp mechanism is used to realize the automatic buckling and unbuckling function of the center axis and the drill bit joint. At the same time, the forward and backward tilting functions of the tilting mechanism are combined with 360° rotation to realize dynamic grasping of the drill bit, avoiding unnecessary safety hazards caused by the on-site staff of the well team using hydraulic tongs to buckle and unbuck, and reducing the labor intensity of the on-site staff. There is an execution structure assembly in the present application, which can realize the bottom well blowout prevention effect. When a blowout occurs at the bottom of the well, the blowout prevention system of the actuator can be automatically started to prevent the blowout, thereby avoiding safety accidents on site.

[0006] The above-mentioned purpose of the present invention is achieved through the following technical means.

[0007] Provided is an electric direct-drive power faucet device for drilling and repairing wells, comprising a permanent magnet synchronous motor, a brake mechanism is arranged on the top of the permanent magnet synchronous motor, a fan is installed on one side of the permanent magnet synchronous motor, a central shaft is connected to the bottom of the permanent magnet synchronous motor, a rotating mechanism is arranged on the central shaft, the rotating mechanism and the permanent magnet synchronous motor can rotate 360 ​​degrees and fix the working position, a central pipe is connected below the rotating mechanism, tilting mechanisms are arranged on both sides of the rotating mechanism, an actuator is installed below the rotating mechanism, and a drilling tool clamping mechanism is installed on the rotating mechanism to cooperate with the actuator;

[0008] The rotating mechanism comprises a rotating bearing, and lifting ears are arranged on both sides of the rotating bearing. The lifting ears are installed in cooperation with the tilting mechanism, and the two ends of the rotating bearing are respectively provided with a cylinder connecting part and a torque arm connecting part.

[0009] Specifically, the tilting mechanism includes two groups of tilting oil cylinders and two groups of lifting rings. One end of the tilting oil cylinder is equipped with a movable connecting sleeve, which is movably installed on the lifting ring. The other end of the tilting oil cylinder is connected to the oil cylinder connecting part.

[0010] Specifically, the actuator includes an internal blowout preventer, the top of the internal blowout preventer is connected to the end of the center pipe, a movable sliding sleeve is sleeved on the internal blowout preventer, blowout preventer cylinders are arranged on both sides of the internal blowout preventer, the tops of the two sets of blowout preventer cylinders are fixed on the bottom of the rotating bearing, and a protective short joint is installed at the bottom end of the internal blowout preventer.

[0011] Specifically, the drill tool clamping mechanism comprises a torque arm, the top of the torque arm is fixed on the torque arm connecting part, a spring fixing seat is installed below the torque arm, and a back-up clamp assembly is installed on the spring fixing seat.

[0012] Specifically, the back-up clamp assembly includes a large end of the clamp body and a small end of the clamp body. A clamp tooth seat is arranged between the large end of the clamp body and the small end of the clamp body. The clamp tooth seat is installed on the central axis. A piston is installed inside the large end of the clamp body. The piston abuts against the clamp tooth seat. A roller rear fixing seat is installed on the small end of the clamp body, and the roller rear fixing seat is in contact with the central axis.

[0013] Specifically, the brake mechanism includes a brake cylinder, an adjusting pressure reducing valve and a brake pad are arranged inside the brake cylinder, a brake cylinder guard plate is connected to the outside of the brake pad, and adjusting pressure reducing valves are installed at both ends of the brake pad.

[0014] Furthermore, fixing frames are installed at both ends of the outside of the brake cylinder, and two sets of anti-torque support arms are installed on the fixing frames, and the anti-torque support arms are vertically installed on both sides of the fixing frames.

[0015] Specifically, the small end of the caliper body and the large end of the caliper body are installed at two ends of the central axis, and a wear-resistant plate is arranged between the small end of the caliper body and the large end of the caliper body.

[0016] The present invention adopts a permanent magnet synchronous motor to provide power, and can lay a good foundation for realizing automation and intelligence through electrical signals. The rotating mechanism installed at the bottom of the permanent magnet synchronous motor can realize 360° rotation, and the back clamp mechanism is used to realize the automatic buckling and unbuckling function of the center axis and the drill bit joint. At the same time, the forward and backward tilting functions of the tilting mechanism are combined with the 360° rotation to realize dynamic grasping of the drill bit, avoiding unnecessary safety hazards caused by the on-site staff of the well team using hydraulic tongs to buckle and unbuck, and reducing the labor intensity of the on-site staff. There is an execution structure assembly in the present application, which can realize the bottom well blowout prevention effect. When a blowout occurs at the bottom of the well, the blowout prevention system of the actuator can be automatically started to prevent the blowout, thereby avoiding safety accidents on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0018] Figure 1 The utility model is a front view of an electric direct-drive power faucet device used for well drilling and repairing operations of the present invention.

[0019] Figure 2 The present invention is a schematic structural diagram of a rotating mechanism in an electric direct-drive power faucet device used for well drilling and repairing operations.

[0020] Figure 3 The present invention is a schematic structural diagram of an actuator in an electric direct-drive power faucet device used for well drilling and repair operations.

[0021] Figure 4 The present invention is a structural schematic diagram of a drilling tool clamping mechanism in an electric direct-drive power swivel device used for well drilling and repair operations.

[0022] Figure 5 The present invention is a schematic structural diagram of a brake mechanism in an electric direct-drive power faucet device used for well drilling and repair operations.

[0023] Figure 6 The present invention is a schematic structural diagram of the installation portion of the anti-torque support arm in an electric direct-drive power swivel device used for well drilling and repair operations.

[0024] from Figures 1 to 6 Including:

[0025] 1. Permanent magnet synchronous motor;

[0026] 2. Braking mechanism;

[0027] 3. Fan;

[0028] 4. Central axis;

[0029] 5. Rotating mechanism;

[0030] 6. Center tube;

[0031] 7. Tilt mechanism;

[0032] 8. Executive body;

[0033] 9. Drill tool clamping mechanism;

[0034] 10. Rotary bearing;

[0035] 12. Lifting lugs;

[0036] 13. Oil cylinder connection;

[0037] 14. Torque arm connection;

[0038] 15. Rings;

[0039] 16. Tilt cylinder;

[0040] 17. Active connection sleeve;

[0041] 18. Internal blowout preventer;

[0042] 19. Moving sleeve;

[0043] 20. Spray-proof cylinder;

[0044] 21. Protect short connector;

[0045] 22. Torque arm;

[0046] 23. Spring fixing seat;

[0047] 24. Back-up clamp assembly;

[0048] 25. Large end of the clamp body;

[0049] 26. Small end of the clamp body;

[0050] 27. Pliers tooth holder;

[0051] 28. Piston;

[0052] 29. Roller rear fixing seat;

[0053] 30. Brake cylinder;

[0054] 31. Adjust the pressure reducing valve;

[0055] 32. Brake pads;

[0056] 33. Brake cylinder guard plate;

[0057] 34. Fixed frame;

[0058] 35. Anti-torque arm;

[0059] 36. Wear-resistant plate. DETAILED DESCRIPTION

[0060] The present invention is further described in conjunction with the following examples.

[0061] Embodiment 1:

[0062] like Figure 1-6 As shown, an electric direct-drive power faucet device for drilling and repairing well operations includes a permanent magnet synchronous motor 1, a brake mechanism 2 is arranged on the top of the permanent magnet synchronous motor 1, a fan 3 is installed on one side of the permanent magnet synchronous motor 1, a central axis 4 is connected to the bottom of the permanent magnet synchronous motor 1, a rotating mechanism 5 is arranged on the central axis 4, a central tube 6 is connected below the rotating mechanism 5, tilting mechanisms 7 are arranged on both sides of the rotating mechanism 5, an actuator 8 is installed below the rotating mechanism 5, and a drill clamping mechanism 9 is installed on the rotating mechanism 5 to cooperate with the actuator 8.

[0063] The overall structure of the present application is composed of mechanical, electrical and hydraulic systems. The overall action is controlled by electrical signals. The permanent magnet synchronous motor 1 is used to provide power. The electrical signal can lay a good foundation for realizing automation and intelligence. The rotating mechanism 5 installed at the bottom of the permanent magnet synchronous motor 1 can ensure 360° rotation, which is convenient for the drill clamping mechanism 9 to grab the drill from different angles. The tilting mechanism 7 connected to the rotating mechanism 5 can control the forward and backward tilting functions of the overall equipment, which is convenient for the drill clamping mechanism 9 to automatically grab the drill. When the tilting cylinder 16 extends forward, the lifting ring 15 is used to grab the drill forward. This function avoids the on-site staff from manually grabbing the drill, which greatly reduces the labor intensity of the on-site staff.

[0064] The drill tool clamping mechanism 9 can use the back-up clamp assembly 24 to realize the automatic make-up and make-down function of the center shaft 4 and the drill tool joint. The setting of the actuator 8 can play a blowout prevention role at the bottom of the well. When a blowout occurs at the bottom of the well, the blowout prevention system of the actuator 8 can be automatically started to prevent the blowout, thus avoiding safety accidents on site.

[0065] The rotating mechanism 5 includes a rotating bearing 10, and lifting ears 12 are arranged on both sides of the rotating bearing 10. The lifting ears 12 are installed in cooperation with the tilting mechanism 7. The two ends of the rotating bearing 10 are respectively provided with a cylinder connection part 13 and a torque arm connection part 14;

[0066] The rotating mechanism 5 moves independently of the main axis of the central axis 4, and the lifting ring 15 can rotate freely. The lifting ring 15 is connected through the lifting ears 12 on both sides of the rotating mechanism 5, and the oil cylinder connection part 13 and the torque arm connection part 14 are set at both ends of the rotating bearing 10. The oil cylinder connection part 13 cooperates with the tilting oil cylinder 16 to make the overall faucet device not interfere with other equipment when drilling or connecting drilling tools, leaving a relatively open space, and the torque arm connection part 14 can provide a fixed installation space for the torque arm 22.

[0067] During the rotation of the rotating mechanism 5, a limiting groove 36 is set at the bottom of the permanent magnet synchronous motor 1, and a baffle is integrally formed on the rotating bearing 10, wherein the limiting groove 36 is installed in cooperation with the baffle, and the baffle can be clamped in the limiting groove 36, and plays a limiting role in the limiting groove 36 to prevent the rotating mechanism 5 and the permanent magnet synchronous motor 1 from rotating. At the same time, the limiting groove 36 installed at the bottom of the permanent magnet synchronous motor 1 can be movably disassembled in cooperation with the top of the permanent magnet synchronous motor, so that the limiting groove 36 releases the baffle, so that the rotating mechanism 5 can adjust and lock the limiting grooves 36 at different angles with the permanent magnet synchronous motor 1 through the top of the baffle, thereby improving the coordination efficiency of the rotating mechanism 5 and the permanent magnet synchronous motor 1.

[0068] During the rotation of the rotating mechanism 5, the swing angle is stabilized by mechanical limiting, so that when the drill bit is sent out at different angles, the rotating mechanism 5 can also rotate to the corresponding angle to grab the drill bit, thereby avoiding the device from being unable to grab the drill bit normally due to well site control factors (automatic catwalk, or ramp is not perpendicular to the derrick level), thereby improving flexible operability.

[0069] The tilting mechanism 7 includes two groups of tilting cylinders 16 and two groups of lifting rings 15. The lifting rings 15 are suspended on both sides of the rotating mechanism 5 and can rotate in both clockwise and counterclockwise directions. A movable connecting sleeve 17 is installed at one end of the tilting cylinder 16, and the other end of the tilting cylinder 16 is connected to the cylinder connecting part 13. The lifting ring 15 can be tilted and moved on the tilting cylinder 16 by adjusting the angle of the movable connecting sleeve 17. The tilting cylinder 16 realizes the forward and backward tilting movement of the lifting ring 15 and can also communicate with the cylinder to return oil to realize the floating function. The drilling tool can be grabbed when tilting forward, avoiding the lifting ring 15 from tilting forward when the drilling tool is grabbed manually, thereby improving the grabbing efficiency of the drilling tool.

[0070] The actuator 8 includes an internal blowout preventer 18, the top of the internal blowout preventer 18 is connected to the end of the central pipe 6, a movable sleeve 19 is sleeved on the internal blowout preventer 18, blowout preventer cylinders 20 are arranged on both sides of the internal blowout preventer 18, the tops of the two groups of blowout preventer cylinders 20 are fixed to the bottom of the rotating bearing 10, and a protective short joint 21 is installed at the bottom end of the internal blowout preventer 18.

[0071] In order to cope with blowouts occurring during oil and gas exploitation, a blowout prevention device, called an internal blowout preventer 18, is provided in the circulation channel of the drilling fluid. The upper end of the internal blowout preventer 18 is connected to the end of the central pipe 6, and the lower section of the internal blowout preventer 18 is connected to the protective short joint 21. The connection is fastened by an anti-loosening flange. Under normal working conditions, the internal blowout preventer 18 is opened, and the drilling fluid can circulate through it. The actuator 8 is remotely controlled by the staff indoors to control the movable sleeve 19 connected to the blowout prevention cylinder 20. The movable sleeve 19 moves to close the internal blowout preventer 18. When an emergency occurs, the internal blowout preventer 18 and the wellhead blowout preventer are closed and both are actuated simultaneously to further prevent the occurrence of blowout accidents.

[0072] The drill tool clamping mechanism 9 includes a torque arm 22, the top of which is fixed on the torque arm connecting portion 14, a spring fixing seat 23 is installed below the torque arm 22, a back-up clamp assembly 24 is installed on the spring fixing seat 23, the back-up clamp assembly 24 includes a large end 25 of the clamp body and a small end 26 of the clamp body, a clamp tooth seat 27 is arranged between the large end 25 of the clamp body and the small end 26 of the clamp body, the clamp tooth seat 27 is installed on the central shaft 4, a piston 28 is installed inside the large end 25 of the clamp body, the piston 28 abuts on the clamp tooth seat 27, a roller rear fixing seat 29 is installed on the small end 26 of the clamp body, and the roller rear fixing seat 29 is in contact with the central shaft 4.

[0073] The back-up clamp assembly 24 can accurately align the center axis 4 with the center of the drill bit before buckling. When buckling is to be realized, the jaw seat 27 in the back-up clamp assembly 24 clamps the drill bit, and the center axis 4 rotates forward or reversely to realize buckling. At the same time, the torque generated by the rotation is transmitted to the guide rail and the derrick through the back-up clamp assembly 24 and the torque arm 22 to maintain the stability of the device. The large end 25 of the clamp body and the small end 26 of the clamp body provided in the back-up clamp assembly 24 can clamp the center axis 4 through the cooperation of the piston 28 and the rear fixing seat 29 of the roller. A wear-resistant plate 36 is provided between the small end 26 of the clamp body and the large end 25 of the clamp body. The wear-resistant plate 36 prevents the center axis 4 from being deformed due to excessive friction with the small end 26 and the large end 25 of the clamp body, so as to ensure the docking stability of the drill bit and the center axis 4. This function can be realized by the operator's remote control indoors, avoiding the need to manually align the drill bit to align the center of the device spindle, thereby improving work efficiency, avoiding safety hazards, and reducing labor intensity.

[0074] The brake mechanism 2 includes a brake cylinder 30 , inside which a regulating pressure reducing valve 31 and a brake pad 32 are arranged, and outside of the brake pad 32 is connected to a brake cylinder guard plate 33 , and both ends of the brake pad 32 are equipped with regulating pressure reducing valves 31 .

[0075] The braking function is mainly rapid braking. After the permanent magnet synchronous motor 1 stops normally, the brake mechanism 2 plays an inertial braking role. The brake mechanism 2 applies a clamping force to the brake pad 32 by adjusting the pressure reducing valve 31 in the brake cylinder 30, thereby hindering the rotation of the central axis 4 of the permanent magnet synchronous motor 1. When the power is off, the magnetism of the electromagnet disappears, and the brake body is provided with a reset spring, which can automatically reset.

[0076] Fixed frames 34 are installed at both ends of the outside of the brake cylinder 30, and two sets of anti-torque arms 35 are installed on the fixed frames 34. The anti-torque arms 35 are vertically installed on both sides of the fixed frames 34. The function of the anti-torque arms 35 is to avoid the faucet device from swinging violently due to the generation of anti-torque when the central axis 4 of the overall device and the drill bit are put on and off, which can avoid the faucet device from generating anti-torque below the bottom of the well during drilling, thereby improving the operation stability.

[0077] The present application adopts a permanent magnet synchronous motor 1 to provide power, and can lay a good foundation for realizing automation and intelligence through electrical signals. The rotating mechanism 5 installed at the bottom of the permanent magnet synchronous motor 1 can realize 360° rotation, and the back clamp mechanism is used to realize the automatic buckling and unbuckling function of the central axis 4 and the drill bit joint. At the same time, the forward and backward tilting functions of the tilting mechanism 7 are combined with the 360° rotation to realize dynamic grasping of the drill bit, avoiding unnecessary safety hazards caused by the on-site staff of the well team when using hydraulic tongs to buckle and unbuck, and reducing the labor intensity of the on-site staff. There is an execution structure assembly in the present application, which can realize the bottom well blowout prevention effect. When a blowout occurs at the bottom of the well, the blowout prevention system of the actuator 8 can be automatically started to prevent the blowout, thereby avoiding safety accidents on site.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. An electric direct-drive power faucet device for well drilling and repairing operations, characterized in that: It comprises a permanent magnet synchronous motor, a brake mechanism is arranged on the top of the permanent magnet synchronous motor, a fan is installed on one side of the permanent magnet synchronous motor, a central axis is connected to the bottom of the permanent magnet synchronous motor, a rotating mechanism is arranged on the central axis, the rotating mechanism and the permanent magnet synchronous motor can rotate 360° and fix the working position, a central tube is connected below the rotating mechanism, tilting mechanisms are arranged on both sides of the rotating mechanism, an actuator is installed below the rotating mechanism, and a drill clamping mechanism is installed on the rotating mechanism to cooperate with the actuator; The rotating mechanism comprises a rotating bearing, and lifting ears are arranged on both sides of the rotating bearing. The lifting ears are installed in cooperation with the tilting mechanism, and an oil cylinder connecting part and a torque arm connecting part are respectively arranged at both ends of the rotating bearing.

2. The electric direct-drive power faucet device for well drilling and repairing operations according to claim 1, characterized in that: The tilting mechanism comprises two groups of tilting oil cylinders and two groups of lifting rings. One end of the tilting oil cylinder is provided with a movable connecting sleeve, which is movably installed on the lifting ring. The other end of the tilting oil cylinder is connected to the oil cylinder connecting part.

3. The electric direct-drive power faucet device for well drilling and repairing operations according to claim 2, characterized in that: The actuator includes an internal blowout preventer, the top of the internal blowout preventer is connected to the end of the central pipe, a movable sliding sleeve is sleeved on the internal blowout preventer, blowout prevention cylinders are arranged on both sides of the internal blowout preventer, the tops of two groups of the blowout prevention cylinders are fixed to the bottom of the rotating bearing, and a protective short joint is installed at the bottom end of the internal blowout preventer.

4. The electric direct-drive power faucet device for well drilling and repairing operations according to claim 3, characterized in that: The drilling tool clamping mechanism comprises a torque arm, the top of which is fixed on the torque arm connecting portion, a spring fixing seat is installed below the torque arm, and a back-up clamp assembly is installed on the spring fixing seat.

5. The electric direct-drive power faucet device for well drilling and repairing operations according to claim 4, characterized in that: The back-up clamp assembly includes a large end of a clamp body and a small end of a clamp body, a clamp tooth seat is arranged between the large end of the clamp body and the small end of the clamp body, the clamp tooth seat is installed on the central axis, a piston is installed inside the large end of the clamp body, the piston abuts against the clamp tooth seat, a roller rear fixing seat is installed on the small end of the clamp body, and the roller rear fixing seat is in contact with the central axis.

6. The electric direct-drive power faucet device for well drilling and repairing operations according to claim 5, characterized in that: The brake mechanism comprises a brake oil cylinder, wherein an adjusting pressure reducing valve and a brake pad are arranged inside the brake oil cylinder, a brake oil cylinder guard plate is connected to the outside of the brake pad, and the adjusting pressure reducing valve is installed at both ends of the brake pad.

7. The electric direct-drive power faucet device for well drilling and repairing operations according to claim 6, characterized in that: Fixed frames are installed at both ends of the outside of the brake oil cylinder, and two groups of anti-torque support arms are installed on the fixed frames. The anti-torque support arms are vertically installed on both sides of the fixed frames.

8. The electric direct-drive power faucet device for well drilling and repairing operations according to claim 7, characterized in that: The small end of the caliper body and the large end of the caliper body are installed at two ends of the central axis, and a wear-resistant plate is arranged between the small end of the caliper body and the large end of the caliper body.

Images