A high-voltage pulse jet coupled anti-torque loading and unloading short section

Abstract

This invention relates to the field of drilling equipment technology, specifically a high-pressure pulse jet coupled anti-torque loading and unloading sub, comprising a long joint, a short joint, a slide, an inner tube, a frame, a movable ring, an anti-torque coupling assembly, an inlet ring, an outlet ring, an annular drive chamber, an oil inlet hole, an oil outlet hole, an oil inlet passage, an oil outlet passage, and a cylindrical groove. The anti-torque coupling assembly is disposed within the cylindrical groove. During the process of injecting hydraulic fluid into the annular drive chamber through the oil inlet hole and oil inlet passage, the hydraulic fluid pushes the movable ring to move, causing the anti-torque coupling assembly to open within the cylindrical groove. This allows the output end of the anti-torque coupling assembly to extend from within the frame and abut against the inner wall of the cylindrical groove, applying torque to the inner tube and preventing axial displacement. This invention is specifically designed for effectively controlling anti-torque in high-pressure pulse operations, enhancing operational stability, improving operational efficiency, and extending tool life.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment technology, specifically a high-pressure pulse jet coupled anti-torque loading and unloading sub. Background Technology

[0002] In high-pressure pulsed jet operations, the reaction torque problem is a common and technically complex challenge. Pulsed jet tools generate a reaction force through the injection of high-pressure fluid. This reaction force can cause axial displacement of the sub-section during operation, often leading to tool torsion, misalignment, and unstable operation, significantly affecting operational accuracy and potentially causing equipment damage or operational interruption. This problem is particularly exacerbated by the high-pressure environment in downhole operations, further increasing the difficulty and risk of the operation.

[0003] Currently, traditional solutions mainly rely on mechanical devices, such as torque control devices and anti-torque dispersion devices, which typically disperse or counteract reaction forces through physical means. However, these methods have many shortcomings: on the one hand, mechanical devices are complex in structure, expensive, and often difficult to operate effectively and stably under extreme high-pressure environments; on the other hand, most traditional devices fail to consider the dynamic changes in anti-torque under different downhole operating conditions, resulting in unsatisfactory relief of reaction forces, thereby affecting operating efficiency and tool lifespan. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned shortcomings by providing a high-pressure pulse jet coupling anti-torque loading and unloading short section, which is specifically designed for effectively controlling anti-torque in high-pressure pulse operations, enhancing operational stability, improving operational efficiency, and extending tool life.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-pressure pulse jet coupled anti-torque loading and unloading sub-section includes a long section, a short section connected to the long section, a slide rail passing through the long section and the short section, an inner tube disposed within the slide rail, a frame fixed within the slide rail, a movable ring slidably connected to the inner tube, and an anti-torque coupling component for connecting the movable ring and the frame. The inner tube has an inlet ring and an outlet ring at both ends, forming an annular drive chamber between the inlet ring and the movable ring. The inlet ring has an oil inlet hole and an oil outlet hole. The inner tube has an oil inlet channel and an oil outlet channel communicating with the annular drive chamber, directly opposite the oil inlet hole and the oil outlet hole. A cylindrical groove is disposed within the slide rail of the long section, and the anti-torque coupling component is disposed within the cylindrical groove. During the process of injecting hydraulic fluid into the annular drive chamber through the oil inlet hole and the oil inlet channel, the hydraulic fluid pushes the movable ring to move, causing the anti-torque coupling component to open within the cylindrical groove.

[0006] Furthermore, the frame includes a first cylinder and a second cylinder fixed within the slide rail, with multiple connecting rods fixedly connected to the first and second cylinders at both ends. The first cylinder has an end head fixed at the end near the inlet ring, and the second cylinder has an end head fixed at the end near the outlet ring. The inner tube is coaxial with the first and second cylinders and slides in a sealed manner within the first and second cylinders. An annular sliding space is formed between the inner tube and the first cylinder, and the annular sliding space between the movable ring and the end head is the annular drive chamber.

[0007] Furthermore, one end of the movable ring is coaxially fixed with an abutment sleeve, and three connecting rods are provided. The three connecting rods are arranged at equal angles with the axis of the inner tube as the center, and there is a retraction space between adjacent connecting rods. The anti-torque coupling assembly includes a drive sleeve that is slidably sleeved on the inner tube, and three sets of anti-torque structures connecting the drive sleeve and the second cylinder. One end of the abutment sleeve slides out of the first cylinder and is connected to the drive sleeve. The anti-torque structure is set at the retraction space.

[0008] Furthermore, any set of the anti-torque structures includes an H-shaped connecting rod one that is rotatably hinged to a drive sleeve at one end, an H-shaped connecting rod two that is rotatably hinged to a cylinder two at one end, and a straight connecting rod used for rotatably hinged to both H-shaped connecting rod one and H-shaped connecting rod two at both ends.

[0009] Furthermore, the drive sleeve is provided with multiple through slots in the circumferential direction, and the drive sleeve is slidably connected to the connecting rod through the through slots.

[0010] Furthermore, sealing rings are provided on the contact surfaces of the first end and the inner tube, the contact surfaces of the movable ring and the inner tube, the contact surfaces of the abutment sleeve and the first cylinder, and the contact surfaces of the second cylinder and the inner tube.

[0011] Furthermore, the slide has a circular cross-section, and the inner diameter of the cylindrical groove is larger than the inner diameter of the slide.

[0012] Furthermore, the circumferential array on the inlet ring has multiple flange holes.

[0013] The beneficial effects of this invention are: In practical applications, the inlet ring is connected to the jet pipeline with the outlet ring facing upwards and the outlet ring facing downwards. When the inner tube is subjected to torque generated by the high-pressure pulse jet, the anti-torque coupling component retracts within the frame, allowing the inner tube to generate a certain axial displacement within the slide to unload the torque. Conversely, hydraulic fluid is introduced into the annular drive chamber through the oil inlet hole and oil passage. The hydraulic fluid pushes the movable ring to slide along the inner tube, and the movable ring drives the anti-torque coupling component to open within the cylindrical groove. This allows the output end of the anti-torque coupling component to extend from within the frame and abut against the inner wall of the cylindrical groove, applying torque to the inner tube and preventing axial displacement. This invention is specifically designed for effectively controlling anti-torque in high-pressure pulse operations, enhancing operational stability, improving operational efficiency, and extending tool life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the present invention; Figure 3 yes Figure 2 Sectional view at point AA; Figure 4 This is a schematic diagram of the structure of the long joint 1 and the interior of the long joint 1 in this invention; Figure 5 This is a front view of the long joint 1 and the interior of the long joint 1 in this invention; Figure 6 yes Figure 5 Sectional view at point BB; Figure 7 This is a schematic diagram of the anti-torque coupling component 7 in this invention; Reference numerals: 1. Long joint; 2. Short joint; 3. Slide rail; 4. Inner tube; 41. Inlet ring; 411. Oil inlet hole; 412. Oil outlet hole; 413. Flange hole; 42. Outlet ring; 43. Oil inlet passage; 5. Frame; 51. Cylinder body one; 52. Cylinder body two; 53. Connecting rod; 54. End one; 55. End two; 6. Movable ring; 61. Abutment sleeve; 7. Anti-torque coupling assembly; 71. Drive sleeve; 72. Anti-torque structure; 721. H-type connecting rod one; 722. H-type connecting rod two; 723. Straight connecting rod; 8. Annular drive chamber. Detailed Implementation

[0015] like Figure 1-7 As shown, a high-pressure pulse jet coupled anti-torque loading and unloading sub-section includes a long joint 1, a short joint 2 connected to the long joint 1, a slide rail 3 penetrating the long joint 1 and the short joint 2, an inner tube 4 disposed within the slide rail 3, a frame 5 fixed within the slide rail 3, a movable ring 6 slidably connected to the inner tube 4, and an anti-torque coupling assembly 7 for connecting the movable ring 6 and the frame 5. The inner tube 4 has an inlet ring 41 and an outlet ring 42 at both ends, forming an annular drive chamber 8 between the inlet ring 41 and the movable ring 6. The inner tube 4 is provided with an oil inlet hole 411 and an oil outlet hole 412. The inner tube 4 is provided with an oil inlet channel 43 and an oil outlet channel that connect the annular drive chamber 8, opposite the oil inlet hole 411 and the oil outlet hole 412. The slide 3 of the long joint 1 is provided with a cylindrical groove 31. The anti-torque coupling component 7 is provided in the cylindrical groove 31. During the process of injecting hydraulic fluid into the annular drive chamber 8 through the oil inlet hole 411 and the oil inlet channel 43, the hydraulic fluid pushes the movable ring 6 to move, causing the anti-torque coupling component 7 to open in the cylindrical groove 31.

[0016] In use, the inlet ring 41 is connected to the jet pipeline with the outlet ring 42 facing down. When the inner tube 4 is subjected to torque generated by the high-pressure pulse jet, the anti-torque coupling component 7 retracts within the frame 5, allowing the inner tube 4 to generate a certain axial displacement within the slide rail 3 to unload the torque. Conversely, hydraulic fluid is introduced into the annular drive chamber 8 through the oil inlet hole 411 and the oil inlet passage 43. The hydraulic fluid pushes the movable ring 6 to slide along the inner tube 4. The movable ring 6 drives the anti-torque coupling component 7 to open within the cylindrical groove 31, causing the output end of the anti-torque coupling component 7 to extend from within the frame 5 and abut against the inner wall of the cylindrical groove 31, applying torque to the inner tube 4 and preventing axial displacement. This invention is specifically designed for effectively controlling anti-torque in high-pressure pulse operations, enhancing operational stability, improving operational efficiency, and extending tool life.

[0017] like Figure 1-7 As shown, the frame 5 includes a first cylinder 51 and a second cylinder 52 fixed within the slide rail 3. Multiple connecting rods 53 are fixedly connected to both ends of the first cylinder 51 and the second cylinder 52. An end head 54 is fixed to the end of the first cylinder 51 near the inlet ring 41, and an end head 55 is fixed to the end of the second cylinder 52 near the outlet ring 42. The inner tube 4 is coaxial with the first cylinder 51 and the second cylinder 52, and slides within the first cylinder 51 and the second cylinder 52 in a sealed manner. An annular sliding space is formed between the inner tube 4 and the first cylinder 51. The annular sliding space between the movable ring 6 and the end head 54 is the annular drive chamber 8. In this embodiment, cylinder 1 51 is fixed inside long joint 1, cylinder 2 52 connects long joint 1 and short joint 2, and connecting rod 53 is used to connect cylinder 1 51 and cylinder 2 52; during the process of hydraulic fluid entering the annular drive chamber 8 through oil inlet 411 and oil inlet passage 43, the hydraulic fluid pushes the movable ring 6 to slide along the annular sliding space, and the movable ring 6 drives the anti-torque coupling component 7 to open in the cylindrical groove 31, so that the output end of the anti-torque coupling component 7 extends out from the frame 5 and abuts against the inner wall of the cylindrical groove 31, applying torque to the inner tube 4 to prevent it from axial displacement; the hydraulic fluid is discharged through oil outlet 412 and oil outlet passage.

[0018] like Figure 1-7As shown, one end of the movable ring 6 is coaxially fixed with an abutting sleeve 61. There are three connecting rods 53, and the three connecting rods 53 are arranged at equal angles around the axis of the inner tube 4, and there is an expansion and contraction space between adjacent connecting rods 53. The anti-torque coupling assembly 7 includes a driving sleeve 71 slidably sleeved on the inner tube 4, and three groups of anti-torque structures 72 connecting the driving sleeve 71 and the cylinder body two 52. One end of the abutting sleeve 61 slides out of the cylinder body one 51 and is connected to the driving sleeve 71. The anti-torque structure 72 is arranged at the expansion and contraction space. In this embodiment, when the inner tube 4 generates torque under high-pressure pulsed jet, the anti-torque structure 72 shrinks in the expansion and contraction space, enabling the inner tube 4 to generate a certain axial displacement in the slideway 3 to unload the torque. Conversely, by injecting hydraulic fluid into the annular driving chamber 8 through the oil inlet hole 411 and the oil inlet passage 43, the hydraulic fluid pushes the movable ring 6 to slide along the inner tube 4, and the abutting sleeve 61 drives the anti-torque structure 72 to open in the cylindrical groove 31, abutting against the inner wall of the cylindrical groove 31 to load torque on the inner tube 4 and prevent it from generating axial displacement.

[0019] As Figure 1-7 shown, any one group of the anti-torque structures 72 includes an H-shaped connecting rod one 721 whose one end is rotatably hinged to the driving sleeve 71, an H-shaped connecting rod two 722 whose one end is rotatably hinged to the cylinder body two 52, and a straight connecting rod 723 whose two ends are rotatably hinged to the H-shaped connecting rod one 721 and the H-shaped connecting rod two 722. In this embodiment, when the inner tube 4 generates torque under high-pressure pulsed jet, the straight connecting rod 723 whose two ends are rotatably hinged to the H-shaped connecting rod one 721 and the H-shaped connecting rod two 722 shrinks in the expansion and contraction space, and the straight connecting rod 723 shrinks into the expansion and contraction space and approaches the inner tube 4, enabling the inner tube 4 to generate a certain axial displacement in the slideway 3 to unload the torque. Conversely, during the process of injecting hydraulic fluid into the annular driving chamber 8 through the oil inlet hole 411 and the oil inlet passage 43, the hydraulic fluid pushes the movable ring 6 to slide along the inner tube 4, causing the abutting sleeve 61 to squeeze the driving sleeve 71 downward. Since the H-shaped connecting rod one 721 is rotatably hinged to the driving sleeve 71 and the straight connecting rod 723, and the H-shaped connecting rod two 722 is rotatably hinged to the straight connecting rod 723 and the cylinder body two 52, the straight connecting rod 723 opens from the expansion and contraction space, and the H-shaped connecting rod one 721, the straight connecting rod 723, and the H-shaped connecting rod two 722 form a "匚" shape, and the straight connecting rod 723 abuts against the inner wall of the cylindrical groove 31 to load torque on the inner tube 4 and prevent it from continuing to generate axial displacement.

[0020] As Figure 1-7 shown, a plurality of through grooves 711 are circumferentially arranged on the driving sleeve 71, and the driving sleeve 71 is slidably connected to the connecting rod 53 through the through grooves 711. In this embodiment, by sliding the driving sleeve 71 along the connecting rod 53 through the through grooves 711, the driving sleeve 71 can be guided to avoid torsion, deviation, and unstable operation of the tool.

[0021] As Figure 1-7As shown, sealing rings are provided on the contact surfaces of the end 1 54 and the inner tube 4, the contact surfaces of the movable ring 6 and the inner tube 4, the contact surfaces of the abutting sleeve 61 and the cylinder 1 51, and the contact surfaces of the cylinder 2 52 and the inner tube 4. In this embodiment, by providing sealing rings on the contact surfaces of the end 1 54 and the inner tube 4, the contact surfaces of the movable ring 6 and the inner tube 4, the contact surfaces of the abutting sleeve 61 and the cylinder 1 51, and the contact surfaces of the cylinder 2 52 and the inner tube 4, the inner tube 4 can be sealed and slidably connected to the end 1 54, the movable ring 6, and the cylinder 2 52, and the abutting sleeve 61 and the cylinder 1 51 can be sealed and slidably connected.

[0022] like Figure 1-7 As shown, the cross-section of the slide 3 is circular, and the inner diameter of the cylindrical groove 31 is larger than the inner diameter of the slide 3. In this embodiment, when the cross-section of the slide 3 is circular and the inner diameter of the cylindrical groove 31 is larger than the inner diameter of the slide 3, the anti-torque coupling component 7 extending from the frame 5 and abutting against the inner wall of the cylindrical groove 31 has a better torque loading effect.

[0023] like Figure 1-7 As shown, the inlet ring 41 has a plurality of flange holes 413 arranged in a circular array; in this embodiment, the inlet ring 41 can be connected to the jet pipeline through the flange holes 413.

[0024] The specific embodiments described herein are merely illustrative examples of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the scope defined by this invention.

Claims

1. A high-voltage pulse jet coupled anti-torque loading and unloading short section, characterized in that: Includes a long connector (1), a short connector (2) connected to the long connector (1), a slide rail (3) passing through the long connector (1) and the short connector (2), an inner tube (4) disposed in the slide rail (3), a frame (5) fixed in the slide rail (3), a movable ring (6) slidably connected to the inner tube (4), and a torque-reverse coupling assembly (7) for connecting the movable ring (6) and the frame (5). The inner tube (4) is provided with an inlet ring (41) and an outlet ring (42) at both ends. An annular drive chamber (8) is formed between the inlet ring (41) and the movable ring (6). An oil inlet is provided on the inlet ring (41). The inner tube (4) has an oil inlet (411) and an oil outlet (412) facing the oil inlet (411) and the oil outlet (412), and an oil inlet channel (43) and an oil outlet channel connecting the annular drive chamber (8) are provided. A cylindrical groove (31) is provided in the slide (3) of the long joint (1) section. The anti-torque coupling component (7) is provided in the cylindrical groove (31). During the process of injecting hydraulic fluid into the annular drive chamber (8) through the oil inlet (411) and the oil inlet channel (43), the hydraulic fluid pushes the movable ring (6) to move, causing the anti-torque coupling component (7) to open in the cylindrical groove (31).

2. The high-voltage pulse jet coupled anti-torque loading and unloading short section according to claim 1, characterized in that, The frame (5) includes a first cylinder (51) and a second cylinder (52) fixed in the slide (3), and multiple connecting rods (53) fixedly connected to the first cylinder (51) and the second cylinder (52) at both ends. The first cylinder (51) has an end head (54) fixed at one end near the inlet ring (41), and the second cylinder (52) has an end head (55) fixed at one end near the outlet ring (42). The inner tube (4) is coaxial with the first cylinder (51) and the second cylinder (52) and slides in a sealed manner within the first cylinder (51) and the second cylinder (52). An annular sliding space is formed between the inner tube (4) and the first cylinder (51). The annular sliding space between the movable ring (6) and the end head (54) is the annular drive chamber (8).

3. The high-voltage pulse jet coupled anti-torque loading and unloading short section according to claim 2, characterized in that, One end of the movable ring (6) is coaxially fixed with an abutment sleeve (61). There are three connecting rods (53). The three connecting rods (53) are set at equal angles with the axis of the inner tube (4) as the center. There is a retraction space between adjacent connecting rods (53). The anti-torque coupling assembly (7) includes a drive sleeve (71) that is slidably sleeved on the inner tube (4) and three sets of anti-torque structures (72) connecting the drive sleeve (71) and the second cylinder (52). One end of the abutment sleeve (61) slides out of the first cylinder (51) and is connected to the drive sleeve (71). The anti-torque structure (72) is set at the retraction space.

4. The high-voltage pulse jet coupled anti-torque loading and unloading short section according to claim 3, characterized in that, Any set of anti-torque structures (72) includes an H-type connecting rod one (721) that is rotatably hinged to a drive sleeve (71) at one end, an H-type connecting rod two (722) that is rotatably hinged to a cylinder two (52) at one end, and a straight connecting rod (723) that is rotatably hinged to both ends of the H-type connecting rod one (721) and the H-type connecting rod two (722).

5. A high-voltage pulse jet coupled anti-torque loading and unloading short section according to claim 4, characterized in that, The drive sleeve (71) is provided with a plurality of through slots (711) in the circumferential direction, and the drive sleeve (71) is slidably connected to the connecting rod (53) through the through slots (711).

6. The high-voltage pulse jet coupled anti-torque loading and unloading short section according to claim 5, characterized in that, Sealing rings are provided on the contact surfaces of the end one (54) and the inner tube (4), the contact surfaces of the movable ring (6) and the inner tube (4), the contact surfaces of the abutting sleeve (61) and the cylinder one (51), and the contact surfaces of the cylinder two (52) and the inner tube (4).

7. The high-voltage pulse jet coupled anti-torque loading and unloading short section according to claim 1, characterized in that, The slide (3) has a circular cross-section, and the inner diameter of the cylindrical groove (31) is larger than the inner diameter of the slide (3).

8. The high-voltage pulse jet coupled anti-torque loading and unloading short section according to claim 1, characterized in that, The inlet ring (41) has a circumferential array of multiple flange holes (413).

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