Oil well oil pipe lifting device

Abstract

A clamping head pipe is connected to the lower end of a long sleeve, a mounting plate is arranged in the clamping head pipe, a linear driving mechanism is arranged on the mounting plate, a horn sleeve is arranged in the clamping head pipe below the mounting plate, the power end of the linear driving mechanism is connected with the horn sleeve, a supporting sleeve is connected to the lower end of the clamping head pipe, and the inner diameter of the supporting sleeve is smaller than that of the clamping head pipe. An oil pipe receding groove is formed in the side wall of the clamping head pipe and the side wall of the supporting sleeve. The oil pipe is automatically clamped and fixed through the linear driving mechanism, the labor intensity of manually fixing the oil pipe is reduced, the working efficiency is improved, and the oil pipe clamping device further has the advantages of being simple in structure, convenient to install and maintain and capable of reducing equipment complexity and operation difficulty.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil well workover equipment, and particularly relates to an oil well tubing lifter. Background Art

[0002] In order to keep the oil wells that have been exploited for many years in long-term stable production, the workover operation volume is increasing. In the major and minor workover operations of oil, water, and gas wells, a large number of pipe string tripping operations account for a large proportion in the total maintenance process. In order to reduce the labor intensity, workover rigs came into being. The traditional workover rig for pipe lifting operation uses the winch and derrick equipment of the workover rig, and the tubing is lifted out of the well through a wire rope and a lifting clamp. There are many types of lifting clamps on the market at present, but basically all of them fix the tubing manually. For example, the lifting clamp disclosed in Chinese Patent Application No. 201921669029.3, titled "Tubing Lifting Clamp", fixes the tubing by manual operation of the operator, with low efficiency. Therefore, there is an urgent need for a device for automatically clamping the tubing at present. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide an oil well tubing lifter with reasonable design, simple structure and high lifting efficiency.

[0004] The technical solution adopted to solve the above technical problem is: an oil well tubing lifter, the lower end of a long sleeve is connected with a chuck tube, an installation plate is arranged inside the chuck tube, a linear driving mechanism is arranged on the installation plate, a bell mouth sleeve is arranged inside the chuck tube below the installation plate, the power end of the linear driving mechanism is connected with the bell mouth sleeve, the lower end of the chuck tube is connected with a support sleeve, the inner diameter of the support sleeve < the inner diameter of the chuck tube, forming a support platform, and tubing relief grooves are machined on the side walls of the chuck tube and the support sleeve.

[0005] As a preferred technical solution, the linear driving mechanism is an electric cylinder.

[0006] As a preferred technical solution, a partition plate is arranged inside the long sleeve, a battery is arranged on the partition plate, and the electric cylinder is located below the partition plate and is connected with the battery through a wire.

[0007] As a preferred technical solution, a connecting ear plate is arranged at the top of the long sleeve.

[0008] The beneficial effects of the utility model are as follows:

[0009] The utility model realizes automatic clamping of the tubing through the linear driving mechanism, reduces the labor intensity of manually fixing the tubing, improves the operation efficiency, and the invention also has the characteristics of simple structure, is convenient for installation and maintenance, and reduces the equipment complexity and operation difficulty. Brief Description of the Drawings

[0010] Figure 1It is a schematic structural view of the present utility model.

[0011] Figure 2 is Figure 1 A-A cross-sectional view of

[0012] Wherein: long sleeve 1, battery 2, partition 3, linear drive mechanism 4, mounting plate 5, horn sleeve 6, chuck tube 7, support sleeve 8, oil pipe relief groove 9. Specific embodiments

[0013] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments, but the present utility model is not limited to the following embodiments.

[0014] In Figure 1 , 2 , for the oil well tubing lifter of this embodiment, a chuck tube 7 is connected to the lower end of the long sleeve 1 by thread, and a connecting ear plate is welded to the top of the long sleeve 1 for connection with the hoisting device of the workover rig. A partition 3 is arranged in the long sleeve 1, and a battery 2 is fixedly installed on the partition 3. A mounting plate 5 is fixedly installed in the chuck tube 7, and a linear drive mechanism 4 is fixedly installed on the mounting plate 5. The direct motion drive mechanism is an electric cylinder, and the electric cylinder is located below the partition 3 and is connected to the battery 2 by a wire. A horn sleeve 6 is installed in the chuck tube 7 below the mounting plate 5. The horn sleeve 6 is used to fix the oil pipe to prevent the oil pipe from falling off during hoisting. The power end of the linear drive mechanism 4 is connected to the horn sleeve 6, so that the horn sleeve 6 moves up and down in the chuck tube 7. The lower end of the chuck tube 7 is connected with a support sleeve 8. The chuck tube 7 and the support sleeve 8 are integrated. The inner diameter of the support sleeve 8 < the inner diameter of the chuck tube 7 to form a support platform. Oil pipe relief grooves 9 are machined on the side walls of the chuck tube 7 and the support sleeve 8. The oil pipe enters the chuck tube 7 through the oil pipe relief groove 9, and the upper end of the oil pipe is stuck on the support platform.

[0015] During use, the present utility model is installed on the hoisting device of the workover rig. The present utility model descends, and the oil pipe located in the well enters the chuck tube 7 through the oil pipe relief groove 9. The upper end of the oil pipe is stuck on the support platform. The electric cylinder pushes the horn sleeve 6 downward, and the horn sleeve 6 sleeves on the upper end of the oil pipe. With the cooperation of the support platform and the horn sleeve 6, the oil pipe in the well is fixed in the present utility model, facilitating the execution of subsequent hoisting procedures.

Claims

1. An oil well tubing lifter, characterized in that: A chuck tube is connected to the lower end of the long casing. An installation plate is arranged inside the chuck tube. A linear driving mechanism is arranged on the installation plate. A horn sleeve is arranged inside the chuck tube below the installation plate. The power end of the linear driving mechanism is connected to the horn sleeve. A support sleeve is connected to the lower end of the chuck tube. The inner diameter of the support sleeve < the inner diameter of the chuck tube, forming a support platform. Oil pipe relief grooves are machined on the side walls of the chuck tube and the support sleeve.

2. The tubing lifter for oil well tubing according to claim 1, characterized in that, The linear driving mechanism is an electric cylinder.

3. The tubing lifter for oil wells according to claim 2, wherein, A partition is arranged inside the long casing. A battery is arranged on the partition. The electric cylinder is located below the partition and is connected to the battery through a wire.

4. The tubing lifter for oil well tubing according to claim 1, wherein, Connection ear plates are arranged at the top of the long casing.

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