Anti-toppling device for drill rods

Abstract

The utility model provides a kind of anti-toppling device for drill rod, including the base body configured to U-shaped structure, the base body includes first finger beam, locking mechanism is arranged on the first finger beam and is used to limit drill rod, wherein, the locking mechanism includes the baffle with the first finger beam swing joint and allows the drill rod to enter, and the lock block for limiting the baffle, the base body further includes the second finger beam with the first finger beam parallel arrangement, the baffle is in initial state with the lower end of the second finger beam contact.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling operations, and specifically to an anti-tipping device for drill pipes. Background Technology

[0002] Currently, the anti-tipping technology used in oil drilling operations when the drill pipe is pulled into the finger beam has the following shortcomings: Passive protection defects: Traditional mechanical limit devices can only provide fixed position support and cannot dynamically adapt to the center of gravity shift during drill pipe movement; Response lag: There is a 0.5-1 second response lag time when emergency measures are taken after the tipping trend is observed manually; Lack of finger beam body protection: Traditional finger beam structures do not integrate anti-tipping devices. There is a risk of tipping during the drill pipe pulling process. Existing protection measures are mostly concentrated in intelligent derrick systems, which use electronic remote sensing to open and close the anti-tipping plates. However, such devices are at risk of failure when encountering power failures; Limitations of intelligent derrick electronic control devices: Existing intelligent derrick anti-tipping devices rely on sensor networks (such as horizontal gyroscopes and pressure sensors) and wireless control systems, requiring additional power supply and maintenance, increasing equipment complexity and deployment costs; The electronic control system is susceptible to the harsh downhole environment (such as dust and vibration), which may lead to false triggering or response failure; Secondary risk hazards: Existing devices are prone to structural damage in the event of a sudden tipping.

[0003] Therefore, it is desirable in the art to provide an anti-tipping device for drill pipes to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to propose an anti-tipping device for drill rods. When the drill rod is pulled in, the baffle can automatically retract and embed into the groove of the first finger beam, thereby effectively eliminating the risk of collision damage from traditional fixed blocks. Furthermore, during drilling, the locking block can retract the baffle with one click to ensure a smooth path for the drill rod to descend.

[0005] According to this utility model, an anti-tipping device for drill pipes is provided, comprising a base configured in a U-shape, the base including a first finger beam. A locking mechanism is installed on the first finger beam and used to limit the drill rod position. The locking mechanism includes a baffle that is movably connected to the first finger beam and allows the drill rod to enter, and a locking block for limiting the baffle. The base also includes a second finger beam arranged parallel to the first finger beam, and the baffle is in contact with the lower end of the second finger beam in the initial state.

[0006] In one embodiment, the baffle is hinged to the first finger beam.

[0007] In one embodiment, a drive component adapted to the baffle is provided on the first finger beam. The baffle is configured to rotate under the pushing action of the drill rod to allow the drill rod to enter the matrix, and the baffle is configured to reset under the action of the drive member.

[0008] In one embodiment, the drive element is configured as a return spring.

[0009] In one embodiment, the baffle is configured as a fan-shaped structure, and an L-shaped limiting portion adapted to the baffle is formed at the side end of the first finger beam.

[0010] In one embodiment, a limiting groove for receiving the baffle is formed on the first finger beam.

[0011] In one embodiment, a groove is formed on the first finger beam to allow the locking block to move laterally.

[0012] In one embodiment, a positioning groove is provided on the first finger beam, and a positioning bead and a positioning spring are accommodated in the positioning groove. A locking groove for matching the positioning bead is provided on the side end of the locking block.

[0013] In one embodiment, the substrate is a composite laminate structure, wherein the composite layer is composed of polyurethane and steel.

[0014] Compared with the prior art, the advantages of this utility model are: This application features dynamic protection with zero interference. When the drill pipe is pulled in, the baffle automatically retracts and embeds itself into the groove of the first finger beam, effectively eliminating the collision damage risk of traditional fixed baffles. Furthermore, during drilling, the locking block can retract the baffle with a single click to ensure a smooth drilling path. This application also features second-level active protection. The drive mechanism enables the baffle to instantly reset within 0.3 seconds, and the baffle, constructed with an involute curved surface, adapts to the φ73-178mm drill pipe envelope, with a support gap ≤2mm. This application boasts long-lasting damage resistance. The polyurethane-steel composite liner has high impact resistance and shows no structural deformation after impact testing; the anti-jamming coating reduces wear on moving parts and extends maintenance cycles. This application is adaptable to all scenarios. It employs a purely mechanical structure to avoid reliance on electronic control systems and is suitable for harsh working conditions such as high dust and strong vibration. This application offers significant safety benefits and reduces the rate of tipping accidents, thus avoiding single-operation losses exceeding 500,000 yuan due to drill pipe damage, further eliminating the need for manual intervention and reducing the risk of close-range operation for operators. Attached Figure Description

[0015] The present invention will now be described in detail with reference to the accompanying drawings, in which: Figure 1The schematic diagram illustrates the structure of an anti-tipping device for drill pipes according to the present invention.

[0016] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0017] To make the technical solution and advantages of this utility model clearer, the exemplary embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not an exhaustive list of all embodiments. Furthermore, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 The schematic diagram illustrates the structure of an anti-tipping device for drill pipes according to the present invention.

[0020] like Figure 1 As shown, the anti-tipping device 100 for drill pipe according to this utility model mainly includes a base 10 and a locking mechanism disposed on the base 10. Preferably, the base 10 is constructed in a U-shape and includes a first finger beam 11 and a second finger beam 12 arranged in parallel, and a connecting beam that fixes the first finger beam 11 and the second finger beam 12 together; the locking mechanism includes a baffle 21 disposed on the first finger beam 11, and the baffle 21 is movably connected to the first finger beam 11.

[0021] In this invention, the baffle 21 can abut against the lower end of the second finger beam 12 in the initial state. Therefore, when the drill rod is pulled in, the baffle 21 can retract into the first finger beam 11 to effectively avoid it, thereby allowing the drill rod to enter the base 10. After the drill rod enters, the baffle 21 can expand outward under the action of the drive member 13 (described below) to return to the initial state.

[0022] Therefore, on the one hand, the U-shaped structure of the base 10 can provide support space for the drill pipe, making it easier to dynamically adapt to the center of gravity shift during the movement of the drill pipe; on the other hand, compared with the prior art which relies on manual observation of the tilting trend and then takes emergency measures, this device can improve the response time by at least 0.5 to 1 second, thereby quickly providing movement space for the drill pipe to achieve the effect of preventing tilting, thus overcoming the response lag problem existing in the prior art.

[0023] In one embodiment of this utility model, such as Figure 1As shown, the baffle 21 is hinged to the first finger beam 11. However, depending on the actual construction requirements, the baffle 21 can also be rotated to the first finger beam 11 in other ways.

[0024] In order to ensure that the baffle 21 has good reset capability, such as Figure 1 As shown, the device has a drive member 13 adapted to the baffle 21 on the first finger beam 11. Therefore, the baffle 21 is configured to rotate inward under the pushing action of the drill rod to retract into the first finger beam 11, thereby allowing the drill rod to enter into the base 10 to achieve the technical effect of preventing tipping. After the drill rod enters, the baffle 21 is configured to expand outward under the action of the drive member 13 to achieve reset, that is, to return to the initial state.

[0025] In one embodiment of this utility model, the driving component 13 is constructed as a return spring. Preferably, after the drill rod has completely passed through, the baffle 21 can automatically pop out within 0.3 seconds under the action of the return spring, thereby forming an anti-tipping support surface with the first finger beam 11 and the second finger beam 12.

[0026] However, depending on the actual construction needs, the drive component 13 can also be configured as other reset structures.

[0027] In one embodiment, such as Figure 1 As shown, the baffle 21 is constructed in a fan-shaped structure (with a machining accuracy of ±1mm), and an L-shaped limiting part 14 is formed at the side end of the first finger beam 11. When the baffle 21 is in its most open state (i.e., when the baffle 21 abuts against the lower end of the second finger beam 12), its position can be limited by the L-shaped limiting part 14, thereby ensuring the formation of an anti-tipping support environment for the drill pipe. Preferably, the baffle 21 adopts an involute curved surface design, which can adapt to the circumferential envelope of the φ73-178mm drill pipe.

[0028] According to this utility model, such as Figure 1 As shown, the locking mechanism also includes a locking block 22 disposed on the first finger beam 11. Preferably, after the baffle 21 retracts inward into the first finger beam 11, the locking block 22 can be slidably moved to abut against the arc surface of the baffle 21, thereby effectively restricting the movement path of the baffle 21. Thus, the baffle 21 can be retracted during drilling, thereby avoiding interference with the drilling rod's lowering path.

[0029] Preferably, such as Figure 1 As shown, a limiting groove 15 is formed on the first finger beam 11. Preferably, the limiting groove 15 is constructed to be approximately rectangular, and the limiting groove 15 is larger than the overall size of the baffle 21, so that it can smoothly retract into the first finger beam 11 after the baffle 21 moves inward.

[0030] In one embodiment, such as Figure 1 As shown, a groove 16 is formed on the first finger beam 11 to allow the locking block 22 to move laterally. A positioning groove 17 for placing the positioning bead 18 and the positioning spring 19 is also provided on the first finger beam 11. A locking groove for fitting the positioning bead 18 is provided on the side end of the locking block 22. Therefore, the locking block 22 can slide laterally along the groove 16, and after the locking block 22 has moved into position, the positioning bead 18 can enter the locking groove under the elastic force of the positioning spring 19 to lock the locking block 22, thereby improving the effectiveness and robustness of the device. It is worth noting that a guide slope is also provided on the left side of the locking groove, so that only a small pushing force is needed to quickly remove the positioning bead 18 from the locking groove and allow the locking block 22 to move laterally until it is fully reset when unlocking.

[0031] Preferably, the locking block 22 is driven by a ball screw, and its repeatability can reach ±0.02mm; the positioning spring 19 has a test accuracy of ±0.1N; and the positioning ball 18 is constructed as a stainless steel ball-bearing positioning ball.

[0032] According to this utility model, such as Figure 1 As shown, the substrate 10 is a composite laminate structure. Preferably, the composite layer is composed of polyurethane and steel. Additionally, a rubber buffer unit for absorbing the impact energy of drill pipe tipping can be provided on the inner wall of the substrate 10 to improve the impact resistance of the device during drill pipe tipping.

[0033] Compared with existing technologies, the advantages of this utility model are: This application features dynamic protection with zero interference. When the drill pipe is pulled in, the baffle 21 automatically retracts and embeds into the groove of the first finger beam 11, effectively eliminating the risk of collision damage associated with traditional fixed blocks. Furthermore, during drilling, the locking block 22 can retract the baffle 21 with a single click to ensure a smooth drilling path. This application also features second-level active protection. The drive component 13 enables the baffle 21 to instantly reset within 0.3 seconds, and the baffle 21, constructed with an involute curved surface, adapts to the φ73-178mm drill pipe envelope, with a support gap ≤2mm. This application also features long-lasting damage resistance. The polyurethane-steel composite liner has high impact resistance and shows no structural deformation after impact testing; the anti-jamming coating reduces wear on moving parts and extends maintenance cycles. Finally, this application is adaptable to all scenarios. It employs a purely mechanical structure to avoid reliance on electronic control systems and is suitable for harsh working conditions such as high dust and strong vibration. This application offers significant safety benefits and reduces the rate of tipping accidents, thereby preventing single-operation losses exceeding 500,000 yuan due to drill pipe damage. It further eliminates the need for manual intervention to reduce the risk of operators working near the machine.

[0034] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing" and other such terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components.

[0036] Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The above are merely preferred embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art can easily make changes or modifications within the scope of this utility model, and such changes or modifications should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An anti-tipping device for drill pipes, characterized in that, include: A base (10) is constructed in a U-shape, the base (10) including a first finger beam (11). A locking mechanism is provided on the first finger beam (11) and used to limit the drill rod. The locking mechanism includes a baffle (21) that is movably connected to the first finger beam (11) and allows the drill rod to enter, and a locking block (22) for limiting the baffle (21). The base (10) also includes a second finger beam (12) arranged parallel to the first finger beam (11), and the baffle (21) is in contact with the lower end of the second finger beam (12) in the initial state.

2. The anti-tipping device for drill pipe according to claim 1, characterized in that, The baffle (21) is hinged to the first finger beam (11).

3. The anti-tipping device for drill pipe according to claim 2, characterized in that, A drive element (13) adapted to the baffle (21) is provided on the first finger beam (11). The baffle (21) is configured to rotate under the pushing action of the drill rod to allow the drill rod to enter the base (10), and the baffle (21) is configured to reset under the action of the drive (13).

4. The anti-tipping device for drill pipe according to claim 3, characterized in that, The drive element (13) is constructed as a return spring.

5. The anti-tipping device for drill pipe according to claim 4, characterized in that, The baffle (21) is constructed in a fan shape.

6. The anti-tipping device for drill pipe according to any one of claims 1 to 5, characterized in that, An L-shaped limiting part (14) adapted to the baffle (21) is formed at the side end of the first finger beam (11).

7. The anti-tipping device for drill pipe according to any one of claims 1 to 5, characterized in that, A limiting groove (15) for receiving the baffle (21) is formed on the first finger beam (11).

8. The anti-tipping device for drill pipe according to any one of claims 1 to 5, characterized in that, A groove (16) is formed on the first finger beam (11) to allow the locking block (22) to move laterally.

9. The anti-tipping device for drill pipe according to claim 8, characterized in that, A positioning groove (17) is provided on the first finger beam (11), and a positioning bead (18) and a positioning spring (19) are contained in the positioning groove (17). A locking groove for matching the positioning bead (18) is provided on the side end of the locking block (22).

10. The anti-tipping device for drill pipe according to any one of claims 1 to 5, characterized in that, The substrate (10) is a composite laminate structure, and the composite layer is composed of polyurethane and steel.

Images