An auxiliary device for lifting an oil drilling drill pipe

Abstract

The utility model relates to the field of oil drilling technology discloses a kind of oil drilling drill rod lifting auxiliary device, including guide structure, and the top of guide structure is provided with moving structure, and guide structure includes guide rail frame, sliding slot, limit slot and roller, and sliding slot is symmetrically opened in the side surface of guide rail frame, and limit slot is opened in the middle of the top end of guide rail frame, and roller is installed in the end surface of sliding slot inner wall;Moving structure includes moving seat and sliding block, and the outer wall of moving seat is slidably connected with the inner wall of guide rail frame and sliding slot, the utility model guide structure is connected by two adjacent mounting piece quick bolt, the quick splicing of equipment is realized, well site track spacing and drill rod length can be adapted, without custom production, to improve equipment reuse rate, in operation, if drill rod length increases or well site track is lengthened, it can be completed to add guide structure in real time to expand, thus improve the flexibility of working condition change, and only need to disassemble damaged module when damaged, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of petroleum drilling technology, and in particular to an auxiliary device for lifting drill pipes in petroleum drilling. Background Technology

[0002] Oil drilling drill pipe lifting aids are devices used to help lift and move drill pipes during oil drilling operations. Drill pipes are important components in drilling operations, and they are very heavy. They need to be continuously lifted or lowered into the well during drilling. In order to improve efficiency and safety, drill pipe lifting aids usually use mechanical or hydraulic systems to provide additional power support. In oil drilling engineering, the stability of the support structure of the drill pipe lifting aid directly affects the safety and efficiency of the operation.

[0003] A drilling rig lifting auxiliary device is disclosed in patent CN213573964U. The top of the main body is equipped with a baffle that protrudes towards the end of the slide rail. When lifting the drill rod is required, the foreman operates the equipment and winch to lift the lowest end of the drill rod in the borehole to the wellhead. Another worker manually tilts the lower end of the drill rod at the wellhead and places it into the drill rod stabilizing device, so that the drill rod abuts against the baffle. With the weight of the drill rod and the assistance of the worker, it slides from the beginning to the end of the slide rail under the action of the traveling mechanism until the drill rod is completely stable in the slide rail. Then, the foreman and the worker jointly lift the drill rod to the corresponding position to complete one lifting operation.

[0004] The aforementioned technology employs a fixed-length integral support structure, where the support beam and guide rail are typically single, elongated metal components. When the device slides on the track, the shift in the center of gravity or uneven ground can easily cause the support beam to bear bending stress, leading to breakage over long-term use. Furthermore, the fixed-length support structure cannot be flexibly adjusted according to the track spacing at the well site. When the required span exceeds the design length, an additional extension section needs to be welded, making on-site operation inconvenient. Therefore, this technology has certain limitations, hence the need for innovation. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary device for lifting drill pipe in oil drilling, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for lifting drill pipe in oil drilling, comprising a guide structure, a movable structure provided at the top of the guide structure, the guide structure comprising a guide rail frame, a slide groove, a limiting groove, and rollers, the slide groove being symmetrically opened on the side of the guide rail frame, the limiting groove being opened in the middle of the top of the guide rail frame, and the rollers being installed on the end face of the inner wall of the slide groove; the movable structure comprising a movable seat and a slider, the outer wall of the movable seat being slidably connected to the inner wall of the guide rail frame and the slide groove, the outer wall of the slider being slidably connected to the inner wall of the limiting groove, and both sides of the bottom inner wall of the movable seat being in contact with adjacent rollers; mounting plates are fixedly installed at the four corners of the guide rail frame, and each mounting plate is provided with a screw hole.

[0007] As a preferred technical solution of this utility model, the top of the movable structure is provided with a limiting structure, the limiting structure includes a limiting block and a gasket, the limiting block is symmetrically installed on both sides of the top of the movable seat, and the two gaskets are fixedly installed on the adjacent side of the limiting block.

[0008] As a preferred embodiment of this utility model, the bottom of the guide structure is symmetrically provided with two support structures. The support structure includes threaded sleeves symmetrically arranged on both sides of the bottom of the guide frame. The inner wall of the threaded sleeve is threaded with a threaded rod, and the top end of the threaded rod is rotatably installed with the bottom end of the guide frame through a provided rotating shaft.

[0009] As a preferred embodiment of this utility model, the support structure further includes a fixing ring, a lever, and an anti-slip pad. The fixing ring is fixedly installed on the top of the outer wall of the threaded sleeve, the lever is fixedly installed on the outer wall of the fixing ring, and the anti-slip pad is fixedly installed on the bottom end of the threaded sleeve.

[0010] As a preferred embodiment of this utility model, the guide structure has a mounting groove on its front side, and a level is embedded in the inner wall of the mounting groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model's guide structure achieves rapid equipment assembly by quickly bolting two adjacent mounting plates together. It can adapt to the well site track spacing and drill pipe length without customized production, thereby improving equipment reusability. If the drill pipe length increases or the well site track is extended during operation, the guide structure can be added in real time to complete the extension, thus improving the flexibility of working condition changes. Furthermore, in case of damage, only the damaged module needs to be disassembled, reducing maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the moving structure and the limiting structure in this utility model;

[0015] Figure 3 This is a schematic diagram of the guide structure and support structure in this utility model.

[0016] In the diagram: 1. Guide structure; 101. Guide rail frame; 102. Slide groove; 103. Limiting groove; 104. Roller; 2. Moving structure; 201. Moving seat; 202. Slider; 3. Limiting structure; 301. Limiting block; 302. Shim; 4. Support structure; 401. Threaded sleeve; 402. Threaded rod; 403. Fixing ring; 404. Lever; 405. Anti-slip pad; 5. Mounting plate; 6. Level. Detailed Implementation

[0017] 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.

[0018] Example

[0019] Please see Figures 1-3 This utility model provides a technical solution:

[0020] An auxiliary device for lifting drill pipe in oil drilling includes a guide structure 1, with a movable structure 2 disposed on the top of the guide structure 1. The guide structure 1 includes a guide rail frame 101, a slide groove 102, a limiting groove 103, and a roller 104. The slide groove 102 is symmetrically formed on the side of the guide rail frame 101, and the limiting groove 103 is formed in the middle of the top of the guide rail frame 101. The roller 104 is mounted on the end face of the inner wall of the slide groove 102. The movable structure 2 includes a movable seat 201 and a slider 202. The outer wall of the movable seat 201 is slidably connected to the inner wall of the guide rail frame 101 and the slide groove 102, and the outer wall of the slider 202 is slidably connected to the inner wall of the limiting groove 103. The connection is such that both sides of the bottom inner wall of the movable seat 201 are in contact with the adjacent rollers 104; mounting plates 5 are fixedly installed at the four corners of the guide rail frame 101, and screw holes are opened on the mounting plates 5. The rollers 104 convert the sliding friction between the movable seat 201 and the slide groove 102 into rolling friction, which effectively reduces the resistance of the drill rod transfer, increases the sliding speed, reduces the need for manual thrust, and achieves multi-directional constraint cooperation through the cooperation of the limiting groove 103, the guide rail frame 101 and the slide groove 102, which plays a limiting role on the movable structure 2, achieves the effect of stable movement, and effectively avoids the risk of drill rod swaying and jamming.

[0021] In this embodiment, a limiting structure 3 is provided on the top of the moving structure 2. The limiting structure 3 includes a limiting block 301 and a gasket 302. The limiting blocks 301 are symmetrically installed on both sides of the top of the moving seat 201. The two gaskets 302 are fixedly installed on the adjacent side of the limiting blocks 301. The symmetrical limiting blocks 301 are installed on both sides of the top of the moving seat 201, forming a gap constraint with the limiting groove 103 of the guide structure 1, thereby limiting and protecting the drill rod. The elastic gasket 302 is fixed inside the limiting block 301. When the moving structure 2 touches the end, the elastic gasket 302 can absorb the impact energy and avoid rigid collision between the drill rod and the guide rail.

[0022] In this embodiment, two support structures 4 are symmetrically arranged at the bottom of the guide structure 1. Each support structure 4 includes threaded sleeves 401 symmetrically arranged on both sides of the bottom of the guide rail frame 101. A threaded rod 402 is threaded onto the inner wall of each threaded sleeve 401. The top end of the threaded rod 402 is rotatably mounted to the bottom end of the guide rail frame 101 via a rotating shaft. The support structure 4 also includes a fixing ring 403, a lever 404, and an anti-slip pad 405. The fixing ring 403 is fixedly installed on the top of the outer wall of the threaded sleeve 401, and the lever 404 is fixedly installed on the outer wall of the fixing ring 403. The anti-slip pad 405... 05 is fixedly installed at the bottom end of the threaded sleeve 401. The front of the guide structure 1 is provided with an installation groove, and the inner wall of the installation groove is embedded with a level 6. The threaded rod 402 and the threaded sleeve 401 are combined to form a spiral drive lifting design. The stroke can be adjusted individually to adapt to different ground height differences and uneven terrain. The fixing ring 403 adopts a double nut anti-loosening structure, combined with the anti-slip coating on the surface of the thread section. Under the drilling vibration environment, the probability of the threaded rod 402 loosening can be effectively reduced. In addition, the level 6 plays an auxiliary role in monitoring and leveling, thereby ensuring the stability of the guide structure 1 during use.

[0023] Working principle: During installation, the number of guide structure modules 1 to be spliced ​​is selected according to the well site track spacing or drill pipe length. The mounting pieces 5 of adjacent guide structures 1 are attached and installed through the screw holes on the mounting pieces 5 to achieve the splicing of guide structures 1. After splicing, the corresponding limiting grooves 103 are aligned with each other. The spliced ​​guide rail frame 101 is leveled by the bottom support structure 4: The operator rotates the lever 404 to drive the threaded rod 402 to extend and retract along the threaded sleeve 401 axially to adjust the support height. With the help of the level 6 to monitor in real time, when the bubble is in the center, the whole device is level, which is suitable for complex well site foundations such as pits and slopes. The drill pipe is placed on the moving seat 201 and protected by the set limiting structure 3. The moving seat 201 moves in the inner wall of the slide groove 102 and moves in the limiting groove 103 with the help of the slider 202 to achieve the auxiliary transfer of the drill pipe.

[0024] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] 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 device for lifting drill pipe in oil drilling, comprising a guide structure (1), characterized in that: The top of the guide structure (1) is provided with a movable structure (2). The guide structure (1) includes a guide rail frame (101), a slide groove (102), a limiting groove (103), and a roller (104). The slide groove (102) is symmetrically opened on the side of the guide rail frame (101). The limiting groove (103) is opened in the middle of the top of the guide rail frame (101). The roller (104) is installed on the end face of the inner wall of the slide groove (102). The movable structure (2) includes a movable seat (201) and a slider (202). The outer wall of the movable seat (201) is slidably connected to the inner wall of the guide rail frame (101) and the slide groove (102). The outer wall of the slider (202) is slidably connected to the inner wall of the limiting groove (103). Both sides of the bottom inner wall of the movable seat (201) are in contact with the adjacent rollers (104). Mounting plates (5) are fixedly installed at the four corners of the guide rail frame (101), and screw holes are provided on the mounting plates (5).

2. The oil drilling drill pipe lifting auxiliary device according to claim 1, characterized in that: The top of the movable structure (2) is provided with a limiting structure (3), which includes a limiting block (301) and a gasket (302). The limiting block (301) is symmetrically installed on both sides of the top of the movable seat (201), and the two gaskets (302) are fixedly installed on the adjacent side of the limiting block (301).

3. The oil drilling drill pipe lifting auxiliary device according to claim 1, characterized in that: The bottom of the guide structure (1) is symmetrically provided with two support structures (4). The support structure (4) includes threaded sleeves (401) symmetrically provided on both sides of the bottom of the guide rail frame (101). The inner wall of the threaded sleeve (401) is threaded with a threaded rod (402). The top end of the threaded rod (402) is rotatably installed with the bottom end of the guide rail frame (101) through a provided rotating shaft.

4. The oil drilling drill pipe lifting auxiliary device according to claim 3, characterized in that: The support structure (4) further includes a fixing ring (403), a lever (404), and an anti-slip pad (405). The fixing ring (403) is fixedly installed on the top of the outer wall of the threaded sleeve (401), the lever (404) is fixedly installed on the outer wall of the fixing ring (403), and the anti-slip pad (405) is fixedly installed on the bottom of the threaded sleeve (401).

5. The oil drilling drill pipe lifting auxiliary device according to claim 1, characterized in that: The guide structure (1) has an installation groove on its front side, and a level (6) is embedded in the inner wall of the installation groove.

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