A kind of oil and gas pipeline directional drilling crossing auxiliary back dragging device

Abstract

The utility model relates to oil and gas pipeline technical field especially, more particularly to a kind of oil and gas pipeline directional drilling crossing auxiliary back dragging device, it includes: adjusting mechanism, the adjusting mechanism includes pedestal, the middle part of the pedestal is fixedly connected with connecting component, the long rod outside of the connecting component is rotatably connected with rotating bottom plate, the inside of the pedestal and rotating bottom plate is all arrayed and is equipped with screw hole two, the inside of rotating bottom plate is slidably connected with sliding side plate, the top of the connecting component is fixedly connected with receiving block, the inner side of receiving block is rotatably connected with rotating shaft one, one end of rotating shaft one is rotatably connected with receiving component, one end of receiving component is slidably connected in the inside of sliding side plate, the utility model adjusts the angle of gyro wheel one and gyro wheel two by height adjustment, rotating bottom plate drives gyro wheel one and gyro wheel two to rotate simultaneously, to adapt the change of pipeline diameter, to avoid the wear and tear of the anticorrosive layer of pipeline.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas pipeline technology, and in particular to an auxiliary pullback device for directional drilling of oil and gas pipelines. Background Technology

[0002] The auxiliary pullback device for directional drilling of oil and gas pipelines is a special equipment used in conjunction with the main drilling rig during the pipeline pullback stage (one of the core procedures) of directional drilling. Its core function is to solve the problems of high difficulty and high risk in pulling back pipelines in long distances, large diameters and complex strata by "sharing the traction force of the main drilling rig, optimizing the stress state of the pipeline and improving the pullback stability", thus ensuring the smooth passage of pipelines through underground drilling.

[0003] Before construction, the device is installed and debugged. The clamping mechanism is adapted to the pipeline, and the main drilling rig parameters are synchronized. During the pullback operation, and when the main drilling rig is pulling, the device applies auxiliary force from the middle / rear end, and the tension and speed are monitored in real time. After the pipeline is in place, the clamp is released, the device is disassembled, and the assistance is completed. Some attachment devices use rollers to assist the pipeline to slide, thereby protecting the pipeline anti-corrosion layer. However, some auxiliary devices cannot adjust the angle of the pipeline according to the change of pipeline diameter, and cannot adjust the angle with the pipe diameter, which leads to local contact between the outer wall of the pipeline and the underground borehole wall, resulting in excessive compression and wear of the local anti-corrosion layer. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] An auxiliary pullback device for directional drilling of oil and gas pipelines includes:

[0006] An adjustment mechanism includes a base, a connecting component fixedly connected to the middle of the base, a rotating base plate rotatably connected to the outside of the long rod of the connecting component, threaded holes arranged in an array inside both the base and the rotating base plate, a sliding side plate slidably connected inside the rotating base plate, a receiving rotating block fixedly connected to the top of the connecting component, a rotating shaft rotatably connected to the inside of the receiving rotating block, a receiving component rotatably connected to one end of the rotating shaft, and one end of the receiving component slidably connected inside the sliding side plate.

[0007] An upper roller assembly is fixedly connected to the inner side of the sliding side plate.

[0008] As an improvement to the above technical solution, the connecting assembly includes a connecting column and a fixing block. One end of the connecting column is fixedly connected to the top of the base, and the inside of the fixing block is fixedly connected to the outside of the connecting column. The inside of the threaded hole is threaded with a bolt.

[0009] As an improvement to the above technical solution, a roller is rotatably connected to the outside of the rotating shaft, and a rubber layer is provided on the outer ring of the roller.

[0010] As an improvement to the above technical solution, a slide rail is provided on the top of the rotating base plate, a threaded hole is provided inside the slide rail, a bolt is threaded inside the threaded hole, and the external thread of the bolt is threaded inside the extension plate at one end of the sliding side plate.

[0011] As an improvement to the above technical solution, a second slide rail is provided inside the sliding side plate, and a first pulley is fixedly connected to the bottom of the sliding side plate. The outside of the first pulley is slidably connected to the inside of the first slide rail.

[0012] As an improvement to the above technical solution, the receiving component includes a rotating block one, a connecting block one, a rotating block two, and a pulley two. The interior of the rotating block one is rotatably connected to one end of the rotating shaft one. One end of the rotating block one is fixedly connected to one side of the connecting block one. One end of the connecting block one is rotatably connected to the interior of the rotating block two. One end of the rotating block two is fixedly connected to one end of the pulley two. The pulley two is slidably connected to the interior of the slide rail two.

[0013] As an improvement to the above technical solution, the upper roller assembly includes a rotating block three, one end of which is fixedly connected to one side of the sliding side plate, and a connecting rod two is rotatably connected inside the sliding side plate, one end of which is rotatably connected inside the rotating block four.

[0014] As an improvement to the above technical solution, one side of the rotating block four is fixedly connected to one end of the rotating shaft two, and a roller two is rotatably connected to the outside of the rotating shaft two, with a rubber layer on the outer ring of the roller two.

[0015] The beneficial effects of this utility model are:

[0016] The sliding side plate is pushed to move by the rotating block three and the receiving component pressing the rotating shaft one and rotating shaft two, causing the outer surfaces of roller one and roller two to come close to the pipe. At the same time, when a rotation angle is required, the rotating base plate is pushed to rotate around the connecting column, causing roller one and roller two to rotate, so as to adapt to the change of pipe diameter, ensuring that the pipe is fixed, and ensuring that the pipe slides on the roller, avoiding contact between the pipe and the underground borehole wall, which would cause wear to the anti-corrosion layer of the pipe. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 for Figure 1 A magnified view of point D;

[0019] Figure 3 This is a diagram showing the connection relationship of the rotating base plate of this utility model;

[0020] Figure 4 for Figure 3 A magnified view of point A;

[0021] Figure 5 for Figure 3 A magnified view of point B;

[0022] Figure 6 for Figure 3 Enlarged view of point C.

[0023] Reference numerals: 10. Adjustment mechanism; 11. Base; 12. Connecting assembly; 121. Connecting column; 122. Fixing block; 13. Rotating base plate; 131. Slide rail one; 132. Threaded hole one; 14. Sliding side plate; 141. Slide rail two; 142. Pulley one; 15. Receiving rotating block; 16. Rotating shaft one; 161. Roller one; 17. Receiving assembly; 171. Rotating block one; 172. Connecting block one; 173. Rotating block two; 174. Pulley two;

[0024] 20. Upper roller assembly; 21. Rotating block three; 22. Connecting rod two; 23. Rotating block four; 24. Rotating shaft two; 25. Roller two. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0026] However, some auxiliary devices cannot adjust the pipe angle according to changes in pipe diameter, nor can they adjust the angle according to the pipe diameter. This leads to localized contact between the outer wall of the pipe and the borehole wall, resulting in excessive compression and wear of the local anti-corrosion layer.

[0027] See appendix Figures 1-6 As shown, to solve the above-mentioned technical problems, an auxiliary pullback device for directional drilling of oil and gas pipelines is provided, comprising:

[0028] Adjustment mechanism 10 includes base 11, connecting component 12 is fixedly connected to the middle of base 11, rotating base plate 13 is rotatably connected to the outside of the long rod of connecting component 12, threaded holes are arrayed inside both base 11 and rotating base plate 13, sliding side plate 14 is slidably connected inside rotating base plate 13, receiving rotating block 15 is fixedly connected to the top of connecting component 12, rotating shaft 16 is rotatably connected to the inside of receiving rotating block 15, receiving component 17 is rotatably connected to one end of rotating shaft 16, and one end of receiving component 17 is slidably connected inside sliding side plate 14;

[0029] The inner side of the sliding side plate 14 is fixedly connected to the upper roller assembly 20.

[0030] After the base 11 is fixed, the sliding side plate 14 is pushed to slide inward according to the size or diameter of the pipe. When the sliding side plate 14 slides, the rotating shaft 16 is squeezed by the receiving component 17. The receiving component 17 and the receiving rotating block 15 allow the rotating shaft 16 to rotate, allowing the rotating shaft 16 to adjust its angle. The rotating base plate 13 rotates on the connecting component 12. With the connecting component 12 as the center point, the rotating base plate 13 is pushed to drive the sliding side plate 14 to rotate. The sliding side plate 14 drives the two rotating shafts 16 to rotate through the receiving component 17, thereby allowing the roller 161 to rotate to a suitable angle. The upper roller assembly 20 squeezes the top of the pipe, so that the pipe always slides on the rubber layer on the outer surface of the roller 161, ensuring that the auxiliary device can adapt to pipes of different sizes and changes in pipe diameter.

[0031] See Figure 3 , Figure 5 and Figure 6 The connecting assembly 12 includes a connecting post 121 and a fixing block 122. One end of the connecting post 121 is fixedly connected to the top of the base 11. The inside of the fixing block 122 is fixedly connected to the outside of the connecting post 121. The inside of the threaded hole 122 is threaded with a bolt 122. The outside of the rotating shaft 16 is rotatably connected with a roller 161. The outer ring of the roller 161 is provided with a rubber layer. The top of the rotating base plate 13 is provided with a slide rail 131. The inside of the slide rail 131 is provided with a threaded hole 132. The inside of the threaded hole 132 is threaded with a bolt 1. The outside of the bolt 1 is threadedly connected to the inside of the extension plate at one end of the sliding side plate 14.

[0032] The connecting column 121 allows the rotating base plate 13 to rotate. The fixing block 122 is used to fix the receiving rotating block 15, allowing the receiving rotating block 15 to be rotatably connected to one end of the rotating shaft 16. The bolt 2 is inserted into the threaded hole 2 and the bolt 2 is turned to rotate. The base 11 and the rotating base plate 13 are fixed by the bolt 2, ensuring that the base 11 and the rotating base plate 13 can be fixed after rotation. The roller 161 rotates on the rotating shaft 16. Its outer surface is provided with a rubber layer. The rubber material is elastic and can offset the impact force when the roller 161 contacts the pipe, avoiding direct hard contact between the metal roller 161 and the pipe, preventing the outer wall of the pipe from being dented, and reducing the stress impact of pullback vibration on the pipe welding joint. The pulley 142 can slide along the slide rail 131, allowing the sliding side plate 14 to slide to the appropriate position. By turning the bolt 2, the sliding side plate 14 is fixed to the rotating base plate 13.

[0033] See Figure 3 , Figure 4 The sliding side plate 14 has a slide rail 141 inside. The bottom of the sliding side plate 14 is fixedly connected to a pulley 142. The pulley 142 is slidably connected to the inside of the slide rail 131. The receiving component 17 includes a rotating block 171, a connecting block 172, a rotating block 173, and a pulley 174. The rotating block 171 is rotatably connected to one end of the rotating shaft 16. One end of the rotating block 171 is fixedly connected to one side of the connecting block 172. One end of the connecting block 172 is rotatably connected to the inside of the rotating block 173. One end of the rotating block 173 is fixedly connected to one end of the pulley 174. The pulley 174 is slidably connected to the inside of the slide rail 141.

[0034] The slide rail 2 141 allows the pulley 2 174 to slide inside it, and the other end of the rotating shaft 16 is rotatably connected to the receiving rotating block 15, which can only rotate but cannot move. At this time, the angle of the rotating shaft 16 is adjusted. When the sliding side plate 14 moves, the receiving component 17 squeezes the rotating shaft 16. At this time, the rotating shaft 16 and the rotating block 171 rotate. At this time, the pulley 2 174 slides upward along the slide rail 2 141, thereby achieving the effect of adjusting the angle of the rotating shaft 16. The connecting block 172 and the rotating block 2 173 have a rotational relationship, ensuring that when the rotating base plate 13 rotates, it can drive the rotating shaft 16 to rotate.

[0035] See Figure 1 , Figure 2The upper roller assembly 20 includes a rotating block 3 21, one end of which is fixedly connected to one side of the sliding side plate 14. A connecting rod 22 is rotatably connected inside the sliding side plate 14. One end of the connecting rod 22 is rotatably connected inside the rotating block 4 23. One side of the rotating block 4 23 is fixedly connected to one end of the rotating shaft 24. A roller 25 is rotatably connected outside the rotating shaft 24. The outer ring of the roller 25 is provided with a rubber layer.

[0036] When the sliding side plate 14 moves inward, the rotating block 3 21 presses the connecting rod 22, adjusting the angle of the connecting rod 22, so that the height of the rotating shaft 24 decreases, allowing the rubber layer of the roller 25 to contact the top of the pipe. This, together with the roller 1 161, forms a fixing effect on the pipe, thus ensuring that the pipe will not detach.

[0037] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An auxiliary pullback device for directional drilling of oil and gas pipelines, characterized in that, include: Adjustment mechanism (10), the adjustment mechanism (10) includes a base (11), a connecting component (12) is fixedly connected to the middle of the base (11), a rotating base plate (13) is rotatably connected to the long rod of the connecting component (12), threaded holes are arrayed inside the base (11) and the rotating base plate (13), a sliding side plate (14) is slidably connected inside the rotating base plate (13), a receiving rotating block (15) is fixedly connected to the top of the connecting component (12), a rotating shaft (16) is rotatably connected to the inner side of the receiving rotating block (15), a receiving component (17) is rotatably connected to one end of the rotating shaft (16), and one end of the receiving component (17) is slidably connected inside the sliding side plate (14); The inner side of the sliding side plate (14) is fixedly connected to the upper roller assembly (20).

2. The auxiliary pullback device for directional drilling of oil and gas pipelines according to claim 1, characterized in that: The connecting assembly (12) includes a connecting post (121) and a fixing block (122). One end of the connecting post (121) is fixedly connected to the top of the base (11). The inside of the fixing block (122) is fixedly connected to the outside of the connecting post (121). The inside of the threaded hole is threaded with a bolt.

3. The auxiliary pullback device for directional drilling of oil and gas pipelines according to claim 1, characterized in that: The rotating shaft (16) is rotatably connected to a roller (161), and the outer ring of the roller (161) is provided with a rubber layer.

4. The auxiliary pullback device for directional drilling of oil and gas pipelines according to claim 1, characterized in that: The top of the rotating base plate (13) is provided with a slide rail (131), and the inside of the slide rail (131) is provided with a threaded hole (132). The threaded hole (132) is threaded with a bolt, and the external thread of the bolt is connected to the inside of the extension plate at one end of the sliding side plate (14).

5. The auxiliary pullback device for directional drilling of oil and gas pipelines according to claim 4, characterized in that: The sliding side plate (14) has a slide rail two (141) inside, and a pulley one (142) is fixedly connected to the bottom of the sliding side plate (14). The pulley one (142) is slidably connected to the inside of the slide rail one (131).

6. The auxiliary pullback device for directional drilling of oil and gas pipelines according to claim 5, characterized in that: The receiving component (17) includes a rotating block one (171), a connecting block one (172), a rotating block two (173), and a pulley two (174). The interior of the rotating block one (171) is rotatably connected to one end of the rotating shaft one (16). One end of the rotating block one (171) is fixedly connected to one side of the connecting block one (172). One end of the connecting block one (172) is rotatably connected to the interior of the rotating block two (173). One end of the rotating block two (173) is fixedly connected to one end of the pulley two (174). The pulley two (174) is slidably connected to the interior of the slide rail two (141).

7. The auxiliary pullback device for directional drilling of oil and gas pipelines according to claim 1, characterized in that: The upper roller assembly (20) includes a rotating block three (21), one end of which is fixedly connected to one side of the sliding side plate (14). A connecting rod two (22) is rotatably connected inside the sliding side plate (14), and one end of the connecting rod two (22) is rotatably connected inside the rotating block four (23).

8. The auxiliary pullback device for directional drilling of oil and gas pipelines according to claim 7, characterized in that: One side of the rotating block four (23) is fixedly connected to one end of the rotating shaft two (24). The rotating shaft two (24) is rotatably connected to the outside of the rotating shaft two (24), and the outer ring of the rotating shaft two (25) is provided with a rubber layer.

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