Visual detection of bend-resistant double-seal drill pipe joints

Abstract

The utility model relates to the technical field of drill pipe joint, specifically disclose a visual detection anti -bending double -sealed drill pipe joint, including first connector and second connector, the inside of first connector with the inside of second connector all are established with cavity, the inside of two cavity all is connected with a plurality of reinforcing bars, the inside of each cavity all pours with concrete. Through the cooperation of internal thread and external thread, the connector can be effectively connected, through the cooperation of cavity, reinforcing bar and concrete, the reinforcing bar can effectively disperse stress, the concrete filling further enhances structural rigidity, when the drill pipe is subjected to bending force in the high dogleg degree borehole, this structure design can greatly improve the bending resistance of the joint, reduce the risk of fatigue crack and fracture of the drill pipe due to bending, prolong the service life of the drill pipe, reduce the frequency and cost of replacing the drill pipe, ensure the continuity of drilling operation, effectively improve the construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drill pipe joint technology, and specifically discloses a visual inspection method for a double-sealed drill pipe joint with bending resistance. Background Technology

[0002] In the oil, gas, and geological drilling industry, drill pipe joints are an indispensable key component of drilling equipment. They are responsible for connecting drill pipes and ensuring that drill pipes can carry out drilling operations stably and continuously in complex geological environments. With the advancement of drilling technology and the increasing complexity of drilling environments, the performance requirements for drill pipe joints are also getting higher and higher. Especially in the case of severe doglegs in the wellbore and high drilling fluid pressure, drill pipe joints face enormous challenges.

[0003] Currently, existing drill pipe joints on the market have many defects when dealing with the above-mentioned complex working conditions. Some drill pipe joints have poor bending resistance and cannot effectively resist bending stress, making them prone to failure such as breakage. To address these issues, we propose a visual inspection double-seal drill pipe joint for bending resistance. Utility Model Content

[0004] This invention proposes a visual inspection method for a double-sealed drill pipe joint with bending resistance. By incorporating multiple reinforcing ribs and concrete within the cavity, it solves the problems of poor bending resistance, inability to effectively resist bending stress, and susceptibility to breakage and other malfunctions.

[0005] This utility model is implemented as follows: a visual inspection and anti-bending double-seal drill pipe joint includes a first connector and a second connector. Both the first connector and the second connector have cavities inside. Multiple reinforcing ribs are connected inside the two cavities. Concrete is poured into the interior of each cavity. The outer surface of the first connector has an external thread, and the inner wall of the second connector has an internal thread. The external thread and the internal thread mesh with each other.

[0006] As a preferred embodiment of the present invention, a visual inspection anti-bending double-sealed drill pipe joint is provided, wherein the inner wall of the second connector is connected to a rubber pad, and the outer surfaces of the first connector and the second connector are both connected to a corrosion-resistant layer.

[0007] As a preferred embodiment of the present invention, a visual inspection and bending-resistant double-sealed drill pipe joint is provided, wherein the outer surface of the first connector is connected to a first repair shoulder, and the outer surface of the second connector is connected to a second repair shoulder.

[0008] As a preferred embodiment of the present invention, a visual inspection anti-bending double-sealed drill pipe joint is provided, wherein the outer surface of the first connector and the outer surface of the second connector are both connected to a fixing ring, and the outer surface of the two fixing rings are provided with multiple fixing holes.

[0009] As a preferred embodiment of the present invention, a visual inspection anti-bending double-sealed drill pipe joint is provided on the outer surface of the first connector, and a first locking block is connected to the outer surface of the second connector, wherein the first locking block is adapted to the first locking slot.

[0010] As a preferred embodiment of the present invention, a visual inspection anti-bending double-sealed drill pipe joint is provided on the outer surface of the first connector, and a second locking block is connected to the outer surface of the second connector, wherein the second locking block is adapted to the second locking slot.

[0011] The beneficial effects of this utility model are:

[0012] This visual inspection and bending-resistant double-seal drill pipe joint effectively connects the joints through the use of internal and external threads. The combination of a cavity, reinforcing ribs, and concrete allows the reinforcing ribs to effectively distribute stress, while the concrete filling further enhances structural rigidity. When the drill pipe is subjected to bending forces in a high-dogleg borehole, this structural design significantly improves the joint's bending resistance, reduces the risk of fatigue cracks and fractures due to bending, extends the service life of the drill pipe, reduces the frequency and cost of drill pipe replacement, ensures the continuity of drilling operations, and effectively improves construction efficiency. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a three-dimensional structural diagram of a visual inspection and bending-resistant double-seal drill pipe joint according to the present invention;

[0015] Figure 2 This is a side view of a visual inspection method for a double-sealed, bending-resistant drill pipe joint according to the present invention.

[0016] Figure 3 This is a side sectional view of a visual inspection method for a double-sealed, bending-resistant drill pipe joint according to the present invention.

[0017] Figure 4 This utility model provides a visual inspection method for a double-sealed, bending-resistant drill pipe joint. Figure 3 Enlarged structural diagram at point A in the middle.

[0018] The markings in the diagram are: 1. First connector; 2. Second connector; 3. Cavity; 4. Reinforcing rib; 5. External thread; 6. Internal thread; 7. First repair shoulder; 8. Second repair shoulder; 9. Corrosion-resistant layer; 10. Rubber pad; 11. Fixing ring; 12. Fixing hole; 13. First slot; 14. First locking block; 15. Second slot; 16. Second locking block. Detailed Implementation

[0019] 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 scope of protection of the present utility model. Unless otherwise specified, the methods used in the present utility model are conventional methods; unless otherwise specified, the raw materials and apparatus used are conventional commercially available products.

[0020] Please see Figure 1-4 A visual inspection double-sealed drill pipe joint for bending resistance includes a first connector 1 and a second connector 2. Both the first connector 1 and the second connector 2 have cavities 3 inside. Multiple reinforcing ribs 4 are connected inside the two cavities 3. Concrete is poured into the cavity 3. The outer surface of the first connector 1 has an external thread 5, and the inner wall of the second connector 2 has an internal thread 6. The external thread 5 and the internal thread 6 mesh with each other.

[0021] In this embodiment: the device can be effectively connected by the cooperation of internal thread 6 and external thread 5. The cooperation of cavity 3, reinforcing rib 4 and concrete can effectively disperse stress, and the concrete filling can further enhance the structural rigidity. When the drill pipe is subjected to bending force in a high dogleg borehole, this structural design can greatly improve the bending resistance of the joint, reduce the risk of fatigue cracks and fractures of the drill pipe due to bending, extend the service life of the drill pipe, reduce the frequency and cost of replacing the drill pipe, ensure the continuity of drilling operations, and effectively improve construction efficiency. Specifically, high dogleg is the angle of change of the wellbore advance direction from one point to another in the wellbore. This angle reflects both the change of the well inclination angle and the change of the azimuth angle, and is usually called the total angle change rate or wellbore curvature.

[0022] As a technical optimization of this utility model, the inner wall of the second connector 2 is connected with a rubber pad 10, and the outer surface of the first connector 1 and the outer surface of the second connector 2 are both connected with a corrosion-resistant layer 9.

[0023] In this embodiment: when the first connector 1 and the second connector 2 are connected, the rubber pad 10 is squeezed to form a sealing barrier inside the joint. At the same time, the corrosion-resistant layer 9 on the outer surface of the first connector 1 and the outer surface of the second connector 2 not only prevents the drill pipe from being eroded by drilling fluid, but also plays an auxiliary sealing role to a certain extent, preventing drilling fluid leakage. This effectively avoids drilling fluid leakage from causing pollution to the formation and also prevents wellbore instability caused by drilling fluid leakage, thus ensuring the safety and stability of drilling operations. Specifically, the corrosion-resistant layer 9 is a ceramic composite material.

[0024] As a technical optimization of this utility model, the outer surface of the first connector 1 is connected to a first repair shoulder 7, and the outer surface of the second connector 2 is connected to a second repair shoulder 8.

[0025] In this embodiment: when the joint wears out during use, technicians can process and repair the repair shoulder to restore the dimensional accuracy and connection performance of the joint, reduce the situation of the entire joint being scrapped due to joint damage, reduce maintenance costs, and improve the reusability of the drill pipe.

[0026] As a technical optimization of this utility model, both the outer surface of the first connector 1 and the outer surface of the second connector 2 are connected to a fixing ring 11, and the outer surface of both fixing rings 11 is provided with multiple fixing holes 12.

[0027] In this embodiment: by using the fixing ring 11 and fixing hole 12 together, after the connector is connected, it is fixed by fastening bolts and nuts, which can further enhance the connection stability between the two connectors and prevent the connector from loosening due to vibration and other factors during drilling.

[0028] As a technical optimization of this utility model, the outer surface of the first connector 1 is provided with a first slot 13, the outer surface of the second connector 2 is connected with a first block 14, the first block 14 is adapted to the first slot 13, the outer surface of the first connector 1 is provided with a second slot 15, the outer surface of the second connector 2 is connected with a second block 16, the second block 16 is adapted to the second slot 15.

[0029] In this embodiment, the combined use of the first locking block 14, the first locking groove 13, the second locking block 16, and the second locking groove 15 can effectively avoid problems such as poor sealing of the connector and reduced bending performance, thereby improving construction quality and efficiency.

[0030] The working principle and usage process of this utility model are as follows: In use, the first connector 1 and the second connector 2 are first connected by the external thread 5 and the internal thread 6, so that the first locking block 14 and the second locking block 16 are effectively engaged in the first locking groove 13 and the second locking groove 15. Then, the two fixing rings 11 are fixed with fastening bolts and nuts to further increase the sealing degree of the first connector 1 and the second connector 2. In use, the rigidity and integrity of the joint can be further improved by the reinforcing ribs 4 connected inside the first connector 1 and the second connector 2 and the concrete is poured.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] However, the above description is merely a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

Claims

1. A visual inspection method for a double-seal drill pipe joint with bending resistance, characterized in that: It includes a first connector (1) and a second connector (2). Both the first connector (1) and the second connector (2) have cavities (3) inside. Both cavities (3) are connected to a plurality of reinforcing ribs (4). Each cavity (3) is filled with concrete. The outer surface of the first connector (1) has an external thread (5), and the inner wall of the second connector (2) has an internal thread (6). The external thread (5) and the internal thread (6) mesh with each other.

2. The visual inspection double-seal drill pipe joint for bending resistance according to claim 1, characterized in that: The inner wall of the second connector (2) is connected to a rubber pad (10), and the outer surfaces of the first connector (1) and the second connector (2) are both connected to a corrosion-resistant layer (9).

3. The visual inspection double-seal drill pipe joint for bending resistance according to claim 1, characterized in that: The outer surface of the first connector (1) is connected to a first repair shoulder (7), and the outer surface of the second connector (2) is connected to a second repair shoulder (8).

4. The visual inspection double-seal drill pipe joint for bending resistance according to claim 1, characterized in that: The outer surface of the first connector (1) and the outer surface of the second connector (2) are both connected to a fixing ring (11), and the outer surface of the two fixing rings (11) is provided with a plurality of fixing holes (12).

5. The visual inspection double-seal drill pipe joint for bending resistance according to claim 1, characterized in that: The outer surface of the first connector (1) is provided with a first slot (13), and the outer surface of the second connector (2) is connected with a first block (14), which is adapted to the first slot (13).

6. The visual inspection double-seal drill pipe joint for bending resistance according to claim 1, characterized in that: The outer surface of the first connector (1) is provided with a second slot (15), and the outer surface of the second connector (2) is connected with a second block (16), which is adapted to the second slot (15).

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