Petroleum while-drilling well wall repairer

Abstract

The utility model discloses a petroleum well wall repairing device along with drilling, which relates to the technical field of petroleum drilling, and comprises a main body, a connecting column is arranged at one end of the main body, a connecting sleeve is arranged at the other end of the main body, a plurality of mounting seats are fixed on the side wall of the main body, and the mounting seats are distributed along the circumferential direction of the side wall of the main body at equal intervals. An inserting groove is formed in the side wall, away from the main body, of the mounting base, a repair plate is inserted in the inserting groove, a mounting groove is formed in the inner wall of the inserting groove, and a blocking mechanism used for blocking the repair plate is arranged in the mounting groove. According to the repairing device, the repairing plate is designed to be replaceable, when the repairing plate is damaged, the repairing plate can be replaced, the cost is saved, the repairing plate matched with the repairing plate can be replaced according to petroleum drilling wells with different diameters, and the adaptability of the repairing device is higher.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling technology, and in particular to an oil wellbore repair device. Background Technology

[0002] The drilling assemblies currently in use have the following defects: During normal drilling, most of the drilling assemblies currently used consist of drill collars, drill pipes, and stabilizers of different sizes, resulting in a less than ideal wellbore trajectory. This is especially true in deviated wells, where frequent tripping of drill strings causes grooves and other phenomena to form at the bottom of the wellbore, affecting normal drilling and well completion operations.

[0003] Currently, wellbore repair work in oil wells primarily relies on specialized wellbore repair tools. The key working component of these tools is the repair plate. However, existing wellbore repair tools typically use a fixed connection between the repair plate and the main body. If the repair plate is damaged due to wear, impact, or other reasons in the complex and harsh downhole environment, the entire repair tool must be replaced. This not only significantly increases operation time and cost but also reduces the continuity and efficiency of drilling operations. Furthermore, because oil well diameters vary under different geological conditions, existing repair tools are insufficient to meet the repair needs of wellbore diameters, often requiring the preparation of multiple sizes of repair tools. This undoubtedly increases the difficulty and cost of equipment procurement, storage, and management.

[0004] For example, the patent with publication number CN2851536Y entitled "A Wellbore Repair Device While Drilling" suffers from the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an oil wellbore repair device for drilling.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wellbore repair tool for oil drilling includes a main body, a connecting post at one end of the main body, a connecting sleeve at the other end of the main body, and multiple mounting seats fixed on the side wall of the main body. The mounting seats are evenly spaced along the circumference of the side wall of the main body. An insertion groove is provided on the side wall of the mounting seat away from the main body. A repair plate is inserted into the insertion groove. An installation groove is provided on the inner wall of the insertion groove. A blocking mechanism for blocking the repair plate is provided inside the installation groove.

[0008] As a further improvement of this utility model, the side wall of the connecting column is provided with external threads.

[0009] As a further improvement of this utility model, the inner wall of the connecting sleeve is provided with an internal thread.

[0010] As a further improvement of this utility model, the blocking mechanism includes a stop block disposed inside the mounting groove, and two springs are disposed inside the mounting groove, one end of the spring being fixed to the inner wall of the mounting groove, and the other end of the spring being fixed to the stop block.

[0011] As a further improvement of this utility model, the side wall of the stop is provided with an inclined surface.

[0012] As a further improvement of this utility model, the cross-section of the insertion slot is a T-shaped structure.

[0013] The beneficial effects of this utility model are:

[0014] By setting up a mounting base, insert slot, and repair plate, the repair plate can be inserted into the insert slot, making it replaceable. When the repair plate is damaged, it can be replaced instead of replacing the entire repair kit. Furthermore, the repair kit can be adapted to different diameter oil wells by simply changing the repair plate, making it more versatile.

[0015] By setting up a blocking mechanism, the repair plate can be fixed inside the insertion slot. By operating the blocking mechanism, the repair plate can be easily disassembled and replaced, making the operation more convenient and faster.

[0016] This invention features a replaceable repair plate design, allowing for easy replacement when the repair plate is damaged, thus saving costs. Furthermore, it can be adapted to different diameter oil wells by simply replacing the repair plate with one that is compatible with them, making the repairer more versatile. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an oil wellbore repair device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the repair plate of an oil wellbore repairer proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the mounting base for an oil wellbore repairer proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the blocking mechanism of an oil wellbore repairer proposed in this utility model.

[0021] In the diagram: 1. Main body, 2. Connecting column, 3. External thread, 4. Connecting sleeve, 5. Internal thread, 6. Mounting base, 7. Repair plate, 8. Stop block, 9. Mounting groove, 10. Insertion groove, 11. Angled surface, 12. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 A wellbore repair tool for oil drilling includes a main body 1. One end of the main body 1 is provided with a connecting post 2, and the side wall of the connecting post 2 is provided with an external thread 3. The other end of the main body 1 is provided with a connecting sleeve 4, and the inner wall of the connecting sleeve 4 is provided with an internal thread 5. Multiple mounting seats 6 are fixed on the side wall of the main body 1. The multiple mounting seats 6 are distributed at equal intervals along the circumference of the side wall of the main body 1. The side wall of the mounting seat 6 away from the main body 1 is provided with an insertion groove 10. The cross-section of the insertion groove 10 is a T-shaped structure. A repair plate 7 is inserted into the insertion groove 10. The inner wall of the insertion groove 10 is provided with an installation groove 9. The installation groove 9 is provided with a blocking mechanism for blocking the repair plate 7.

[0024] In this utility model, the blocking mechanism includes a stop block 8 disposed inside the mounting groove 9. The mounting groove 9 is provided with two springs 12. One end of the spring 12 is fixed to the inner wall of the mounting groove 9, and the other end of the spring 12 is fixed to the stop block 8. The side wall of the stop block 8 is provided with an inclined surface 11. When it is necessary to disassemble the repair plate 7, the spring 12 is compressed by pressing the stop block 8, so that the stop block 8 retracts into the interior of the mounting groove 9, and then the repair plate 7 can be slid out of the insertion groove 10.

[0025] When using this utility model, the external thread 3 of the connecting column 2 is connected to the drill string, and the internal thread 5 of the connecting sleeve 4 is connected to the drill string. The repairer can then be combined with the drill string. The repair plate 7 directly contacts the well wall to repair the well wall, avoiding the appearance of grooves or irregular wellbore, making the well wall smooth and improving drilling efficiency.

[0026] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A wellbore repair tool for oil drilling, comprising a main body (1), characterized in that, One end of the main body (1) is provided with a connecting post (2), and the other end of the main body (1) is provided with a connecting sleeve (4). Multiple mounting seats (6) are fixed on the side wall of the main body (1). The multiple mounting seats (6) are distributed at equal intervals along the circumference of the side wall of the main body (1). The side wall of the mounting seat (6) away from the main body (1) is provided with an insertion groove (10). A repair plate (7) is inserted into the insertion groove (10). An installation groove (9) is provided on the inner wall of the insertion groove (10). A blocking mechanism for blocking the repair plate (7) is provided inside the installation groove (9). The blocking mechanism includes a stop block (8) set inside the installation groove (9). Two springs (12) are provided inside the installation groove (9). One end of the spring (12) is fixed on the inner wall of the installation groove (9), and the other end of the spring (12) is fixed on the stop block (8).

2. The oil wellbore repair tool according to claim 1, characterized in that, The connecting column (2) has an external thread (3) on its side wall.

3. The oil wellbore repair tool according to claim 1, characterized in that, The inner wall of the connecting sleeve (4) is provided with an internal thread (5).

4. The oil wellbore repair tool according to claim 1, characterized in that, The side wall of the stop (8) is provided with an inclined surface (11).

5. The oil wellbore repair tool according to claim 1, characterized in that, The cross-section of the insertion slot (10) is T-shaped.

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