Multifunctional elevator with anti-torsion mechanism

Abstract

The utility model relates to the field of oil field workover equipment, and discloses a multifunctional elevator with an anti-torsion mechanism, which comprises the anti-torsion mechanism. The anti-torsion mechanism comprises a steel wire rope, a first supporting rod, a second supporting rod, a first pulley, a second pulley and a turnbuckle tensioner, the upper end of the steel wire rope is connected with a crown block at the top of a derrick, and the lower end of the steel wire rope is connected with the turnbuckle tensioner fixed to the workover rig table top. The inner end of the first supporting rod is fixed on the outer side of the upper lifting plate, the outer end of the first supporting rod is fixedly connected with a sliding sleeve sleeved on the periphery of the steel wire rope, and the inner end of the second supporting rod is fixed on the derrick and the outer end is slidably connected with the steel wire rope through a first pulley. Due to the arrangement of the anti-torsion mechanism, the overall guiding stability of the elevator is enhanced, the situation that the elevator is not easy to center a wellhead to grasp an oil pipe due to the influence of wind power in the working process is avoided, and meanwhile, the situation that the elevator rotates in the screwing-on and screwing-off process of a main back-up wrench is also avoided.

Description

Technical Field

[0001] The utility model relates to the field of oilfield well repair equipment, in particular to a multifunctional elevator with an anti-torsion mechanism. Background Art

[0002] To address the passive situation of manually opening and closing elevators at the wellhead during workover sand flushing operations, reduce labor intensity, and eliminate safety hazards, the use of multifunctional elevators, consisting of a double-arm lifting ring, a sand flushing faucet, a bearing ring shaft, an upper and lower lifting plates, a main tong, a backup tong, and a powered elevator, has been promoted. However, the use of multifunctional elevators presents two significant technical challenges: First, during windy weather operations, the multifunctional elevator is affected by the wind and may have difficulty centering the wellhead and grasping the tubing. Second, during the make-up and breakout process of the main and backup tongs of the multifunctional elevator, the elevator's main structure is subjected to torque, causing the elevator to rotate under the applied force. Utility Model Content

[0003] In order to solve the above technical problems, the present invention provides a multifunctional elevator with an anti-torsion mechanism, and its technical solution is as follows:

[0004] The cam is connected to the upper and lower frames of the cam, and the cam is connected to the upper and lower frames of the cam.

[0005] Furthermore, the power elevator is a side-opening elevator.

[0006] Furthermore, the second support rod is a telescopic rod.

[0007] Furthermore, a guide bowl is provided below the back clamp.

[0008] Furthermore, a first oil cylinder is installed between the upper hanging plate and the lower hanging plate, and the lower hanging plate is flipped by extending and retracting the piston rod of the first oil cylinder.

[0009] Furthermore, a second oil cylinder is installed between the lower hanging plate and the power elevator, and the power elevator is turned over by extending and retracting the piston rod of the second oil cylinder.

[0010] Furthermore, the first support rod and the sliding sleeve are fixed by welding.

[0011] Compared with the prior art, the present invention has the following beneficial technical effects:

[0012] 1. The utility model enhances the overall guiding stability of the elevator by setting an anti-torsion mechanism, avoiding the situation where it is difficult to center the wellhead and grasp the oil pipe due to the influence of wind during operation, and also avoids the situation where the elevator rotates during the process of making and breaking out the main backup clamp.

[0013] 2. The utility model sets the power elevator as a side-opening elevator, which has a wider pipe grabbing range.

[0014] 3. The utility model has a reasonable structure and more reliable overall working performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall equipment for well repair operations;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the overall equipment for well repair operations;

[0017] Figure 3 This is a schematic diagram of the structural layout of the utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the multifunctional elevator body of the utility model;

[0019] Figure 5 This is a schematic diagram of the main structure of the multifunctional elevator of the utility model;

[0020] In the figure: 1-well workover rig, 2-derrick, 3-hook, 4-wire rope, 5-second support rod, 6-first support rod, 7-sliding sleeve, 8-first pulley, 9-multi-function elevator body, 10-wellhead equipment, 11-second pulley, 12-turnbuckle tensioner, 13-double-arm lifting ring, 14-sand flushing faucet, 15-load bearing ring shaft, 16-upper lifting plate, 17-second oil cylinder, 18-power elevator, 19-lower lifting plate, 20-first oil cylinder, 21-backup tong, 22-main tong, 23-tubing nipple, 24-guide bowl. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to specific embodiments and accompanying drawings. Example 1

[0022] See also Figures 1 to 5A multifunctional elevator with an anti-torsion mechanism, including an upper hanging plate 16, a lower hanging plate 19, a main tong 22, a backup tong 21 and a power elevator 18, which is used in conjunction with a wellhead equipment 10; and an anti-torsion mechanism; the anti-torsion mechanism includes a wire rope 4, a first support rod 6, a second support rod 5, a first pulley 8, a second pulley 11 and a turnbuckle tensioner 12. The upper end of the wire rope 4 is connected to the crown block position at the top of the derrick 2, and the lower end is connected to the turnbuckle tensioner 12 fixed on the table of the workover rig 1. The inner end of the first support rod 6 is fixed to the outside of the upper hanging plate 16, and the outer end is fixedly connected to the sliding sleeve 7 which is mounted on the outer periphery of the wire rope 4. The sliding sleeve 7 can slide up and down along the wire rope 4. The second support rod 5 is located below the first support rod 6. The inner end of the second support rod 5 is fixed to the derrick 2, and the outer end is slidingly connected to the wire rope 4 through the provided first pulley 8. The second pulley 11 is installed on the derrick 2 and is below the second support rod 5. The second pulley 11 is slidingly connected to the wire rope 4; the power elevator 18 is a side-opening elevator. Example 2

[0023] See also Figures 1 to 5 A multifunctional elevator with an anti-torsion mechanism, based on the technical solution described in Example 1, wherein the second support rod 5 is a telescopic rod, and the length of the telescopic rod can be adjusted appropriately according to the on-site conditions, so as to better adjust the multifunctional elevator to the wellhead. Example 3

[0024] See also Figures 1 to 5 A multifunctional elevator with an anti-torsion mechanism, based on the technical solution described in Example 1, is provided with a guide bowl 24 below the backup clamp 21 to better guide the oil pipe into the backup clamp 21. Example 4

[0025] See also Figures 1 to 5 A multifunctional elevator with an anti-torsion mechanism, based on the technical solution described in Example 1, has a first oil cylinder 20 installed between an upper hanging plate 16 and a lower hanging plate 19, and the lower hanging plate 19 is turned over by retracting and extending the piston rod of the first oil cylinder 20; a second oil cylinder 17 is installed between the lower hanging plate 19 and a power elevator 18, and the power elevator 18 is turned over by retracting and extending the piston rod of the second oil cylinder 17. Example 5

[0026] See also Figures 1 to 5 A multifunctional elevator with an anti-torsion mechanism, based on the technical solution described in Example 1, the first support rod 6 and the sliding sleeve 7 are fixed by welding to enhance firmness.

[0027] In order to enable those skilled in the art to better understand the present invention, its basic working principle is briefly introduced as follows:

[0028] The wire rope 4 guides the multifunctional elevator body 9 as it moves up and down. The coordinated operation of the first support rod 6, the second support rod 5, the first pulley 8, the second pulley 11, and the turnbuckle tensioner 12 (used to adjust the wire rope tension) ensures that the wire rope 4 maintains a consistent trajectory with the multifunctional elevator body 9. This enhances the overall guiding stability of the elevator, enabling it to center the wellhead and grip the tubing even in the presence of wind. Furthermore, the multifunctional elevator body 9 does not rotate during the make-up and breakout processes of the main tongs 22 and backup tongs 21. The power elevator 18 is designed as a side-opening elevator, which facilitates a wider range of tubing grips. The guide bowl 24 guides the tubing into the backup tongs 21. The backup tongs 21 grip the tubing ferrule, while the main tongs 22 rotate the tubing nipple 23, enabling make-up and breakout of the tubing between them.

Claims

1. A multifunctional elevator with an anti-torsion mechanism, comprising an upper hanging plate, a lower hanging plate, a main tong, a backup tong and a power elevator, the power elevator being used in conjunction with wellhead equipment, characterized in that: The cam is secured to the derrick and has a first, second, and second pulleys, which are connected to the derrick of the derrick shaft via a first pulley mounted on the derrick frame. The cam is secured to the derrick of the derrick shaft via a first, second, and second pulleys.

2. The multifunctional elevator with an anti-torsion mechanism according to claim 1, characterized in that: The power elevator is a side-opening elevator.

3. The multifunctional elevator with an anti-torsion mechanism according to claim 1, characterized in that: The second support rod is a telescopic rod.

4. The multifunctional elevator with an anti-torsion mechanism according to claim 1, characterized in that: A guide bowl is provided below the back clamp.

5. The multifunctional elevator with an anti-torsion mechanism according to claim 1, characterized in that: A first oil cylinder is installed between the upper hanging plate and the lower hanging plate, and the lower hanging plate is turned over by extending and retracting the piston rod of the first oil cylinder.

6. The multifunctional elevator with an anti-torsion mechanism according to claim 1, characterized in that: A second oil cylinder is installed between the lower hanging plate and the power elevator, and the power elevator is turned over by extending and retracting the piston rod of the second oil cylinder.

7. The multifunctional elevator with an anti-torsion mechanism according to claim 1, characterized in that: The first support rod and the sliding sleeve are fixed by welding.

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