Rotary float shoe with anti-falling function
By setting up structures such as fixing rods, fixing caps, rotating bearings and fixing sleeves on the guide cap of the rotating floating shoes, combined with the combination of elastic columns and springs, the problem of the lack of anti-falling function in the cementing process of existing rotating floating shoes is solved. , realizes stable connection and efficient use of rotating floating shoes.
Patent Information
- Application Number
- CN202421493853.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing rotary floating shoes lack effective anti-falling function during the cementing process, which is prone to insolid connection with the drilling tool due to the complexity of the underground environment, which affects the smooth progress of the cementing work and may cause serious consequences.
A rotating floating shoe with anti-falling function was designed. By setting a fixed rod, a fixed cap, a rotating bearing and a fixing sleeve on the guide cap, the fixing and elastic adjustment of the guide cap is achieved by using the combination of elastic columns and springs. Ensure stable connections are maintained during rotation.
It effectively prevents the rotating floating shoes from falling off during use, improves the stability and service life of the device, and ensures the safe and efficient cementing work.
Smart Images
Figure CN222526256U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cementing tools, in particular to a rotary floating shoe with an anti-falling function. Background Art
[0002] The rotary float shoe is an important tool used in the cementing process of oil and gas wells. Its main structure includes a buoyancy body and a swivel joint, which can rotate in the wellbore as the drill bit rotates. The original intention of the design of the rotary float shoe is to reduce the weight of the drill bit through its buoyancy characteristics, making it easier to move in the wellbore. In addition, the rotation function allows the drill bit to operate more smoothly in the wellbore, effectively preventing the occurrence of drill bit sticking. The rotary float shoe is usually made of high-strength materials and can withstand the high pressure and high temperature conditions of the complex environment downhole.
[0003] In cementing work, the rotating float shoe plays a vital role. First, it reduces the load of the drill tool through buoyancy, making the drill tool have a better suspension effect in the mud, thereby improving the efficiency of drilling. Secondly, the rotation function can make the drill tool distribute the mud more evenly in the wellbore, which helps to form a more complete and firm cement ring, avoiding mud channels and cement ring defects during the cementing process. In addition, the rotating float shoe can effectively reduce the friction between the drill tool and the well wall, reduce the wear of the drill tool and the damage of the wellbore, and extend the service life of the equipment.
[0004] Although rotary float shoes play an important role in cementing work, existing rotary float shoes generally have a significant problem, that is, they lack an effective anti-falling function. In actual operation, due to the complex downhole environment, the float shoe may be affected by factors such as mud flow and wellbore pressure changes during the rotation process, resulting in a loose connection between the float shoe and the drill bit, or even falling off. This will not only affect the smooth progress of cementing work, but may also cause serious consequences such as wellbore blockage and equipment damage. The current design of rotary float shoes lacks effective measures to prevent falling off, and often relies on manual tightening and regular inspections, which not only increases the difficulty of operation, but also cannot completely avoid the risk of falling off. Therefore, there is an urgent need for a new type of rotary float shoe with an anti-falling function to ensure the safety and efficiency of cementing work. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a rotating float shoe with an anti-falling function, which aims to improve the inability to mix the irrigation equipment evenly, thereby avoiding the problem that the mixing step of the irrigation equipment in the processing project is not uniform, resulting in a decrease in the paint yield, and then causing.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary floating shoe with an anti-falling function, comprising a guide cap, a fixing rod fixedly connected to the lower surface of the guide cap, a fixing cap threadedly connected to one end of the fixing rod, a rotary bearing slidably connected to the outer wall of the fixing rod, a limiting groove is provided on the outer wall of the rotary bearing, a fixing sleeve is slidably connected to the outer wall of the rotary bearing, a sealing strip is provided on the upper surface of the rotary bearing, a fixing assembly is provided inside the fixing sleeve, and the fixing assembly is used to fix the fixing sleeve and the rotary bearing.
[0007] Furthermore, the fixing assembly includes a fixing block, the outer wall of the fixing block is slidably connected to the inside of the fixing sleeve, a connecting rod is fixedly connected to one side of the outer wall of the fixing block, the outer wall of the connecting rod is sleeved with a first spring, one end of the first spring is fixedly connected to one end of the outer wall of the fixing block, the other end of the first spring is fixedly connected to the inside of the fixing sleeve, one end of the connecting rod is fixedly connected to a limiting plate, the outer wall of the fixing sleeve is threadedly connected to a sealing plate, and the inner wall of the fixing sleeve is fixedly connected to a guide column.
[0008] Furthermore, the lower surface of the fixed sleeve is fixedly connected to a first connecting plate, the lower surface of the first connecting plate is fixedly connected to an elastic column, the lower surface of the elastic column is fixedly connected to a second connecting plate, the lower surface of the first connecting plate is fixedly connected to a support rod, the outer wall of the support rod is sleeved with a second spring, one end of the second spring is fixedly connected to the lower surface of the first connecting plate, the other end of the second spring is fixedly connected to the upper surface of the second connecting plate, and the outer wall of the support rod is slidably connected to the inside of the second connecting plate.
[0009] Furthermore, a first connecting sleeve is fixedly connected to the upper surface of the second connecting plate, a connecting block is slidably connected inside the first connecting sleeve, a limiting rod is slidably connected inside the connecting block, and a third spring is sleeved on the outer wall of the limiting rod.
[0010] Furthermore, both ends of the third spring are fixedly connected to one side of the outer wall of the connecting block, and a connecting strip is rotatably connected to the upper surface of the connecting block.
[0011] Furthermore, a rotating block is rotatably connected to the middle of the connecting strip, and a second connecting sleeve is slidably connected to one end of the connecting strip.
[0012] Furthermore, one side of the outer wall of the second connecting sleeve is fixedly connected to the lower surface of the first connecting plate, and a connecting column is fixedly connected to the outer wall of the second connecting plate.
[0013] Furthermore, the outer wall of the connecting column is fixedly connected to a shell, and the inside of the shell is fixedly connected to a floating shoe body.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, the guide head is fixed to ensure that the guide head can be rotated while remaining fixed during use, thereby enhancing the practicability of the device. The guide cap is fixed to the rotating bearing through the fixing cap, and the rotating bearing is then fixed to the fixing sleeve, thereby improving the stability of the device.
[0016] 2. In the utility model, the elastic column is slid on the connecting column so that the guide cap can be adjusted according to the elasticity of the pressure, thereby avoiding damage to the guide cap due to excessive pressure. At the same time, a third spring is provided to assist the second spring in providing elasticity, thereby avoiding that the second spring is always in a stressed state when not in use, thereby improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a three-dimensional structural schematic diagram of a rotating floating shoe with an anti-falling function proposed by the utility model;
[0018] Figure 2 This is an exploded schematic diagram of the guide head structure of a rotary floating shoe with an anti-falling function proposed by the utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the fixed block part of a rotating floating shoe with an anti-falling function proposed by the utility model;
[0020] Figure 4 This is an exploded schematic diagram of the connecting column structure of a rotary floating shoe with an anti-falling function proposed by the utility model;
[0021] Figure 5 This is a schematic structural diagram of the second spring portion of a rotary floating shoe with an anti-falling function proposed by the utility model.
[0022] Legend:
[0023] 1. Guide cap; 2. Fixing rod; 3. Fixing cap; 4. Rotating bearing; 5. Sealing strip; 6. Fixing sleeve; 7. Sealing sheet; 8. Limiting groove; 9. Guide column; 10. Floating shoe body; 11. Fixing block; 12. Connecting rod; 13. First spring; 14. Limiting sheet; 15. Elastic column; 16. Connecting column; 17. First connecting plate; 18. Support rod; 19. Second spring; 20. Second connecting plate; 21. First connecting sleeve; 22. Limiting rod; 23. Third spring; 24. Connecting strip; 25. Rotating block; 26. Second connecting sleeve; 27. Connecting block; 28. Casing. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Reference Figure 1 , Figure 2 , Figure 3 , the utility model provides an embodiment: a rotary floating shoe with an anti-falling function, comprising a guide cap 1, a fixing rod 2 is fixedly connected to the lower surface of the guide cap 1, a fixing cap 3 is threadedly connected to one end of the fixing rod 2, a rotating bearing 4 is slidably connected to the outer wall of the fixing rod 2, a limiting groove 8 is provided on the outer wall of the rotating bearing 4, a fixing sleeve 6 is slidably connected to the outer wall of the rotating bearing 4, a sealing strip 5 is provided on the upper surface of the rotating bearing 4, a fixing component is provided inside the fixing sleeve 6, the fixing component is used to fix the fixing sleeve 6 and the rotating bearing 4, and the fixing component comprises a fixing block 11, the outer wall of the fixing block 11 is slidably connected to the inside of the fixing sleeve 6, a connecting rod 12 is fixedly connected to one side of the outer wall of the fixing block 11, a first spring 13 is provided on the outer wall of the connecting rod 12, one end of the first spring 13 is fixedly connected to one end of the outer wall of the fixing block 11, the other end of the first spring 13 is fixedly connected to the inside of the fixing sleeve 6, one end of the connecting rod 12 is fixedly connected to a limiting plate 14, the outer wall of the fixing sleeve 6 is threadedly connected to a sealing plate 7, and the inner wall of the fixing sleeve 6 is fixedly connected to a guide column 9;
[0026] Specifically, the guide cap 1 is fixed to prevent the guide cap 1 from falling off from the entire device during use. During installation, the guide cap 1 is first fixed to the limiting groove 8, and the fixing rod 2 is first inserted into the rotating bearing 4, and the rotating bearing 4 is fixed on the guide cap 1 through the fixing cap 3, and then the limiting groove 8 of the rotating bearing 4 is installed facing the guide column 9. At this time, since the fixing block 11 has a slight slope, the fixing block 11 moves inside. When the rotating bearing 4 completely enters the fixed sleeve 6, the fixing block 11 pops up again under the action of the first spring 13 to fix the rotating bearing 4. At the same time, the sealing strip 5 and the sealing sheet 7 are provided to keep the entire device sealed. After the above operations, the guide cap 1 is fixed to ensure that the guide cap 1 does not fall off during use.
[0027] Reference Figure 1 and Figure 4 , Figure 5The lower surface of the fixed sleeve 6 is fixedly connected to a first connecting plate 17, the lower surface of the first connecting plate 17 is fixedly connected to an elastic column 15, the lower surface of the elastic column 15 is fixedly connected to a second connecting plate 20, the lower surface of the first connecting plate 17 is fixedly connected to a support rod 18, the outer wall of the support rod 18 is sleeved with a second spring 19, one end of the second spring 19 is fixedly connected to the lower surface of the first connecting plate 17, the other end of the second spring 19 is fixedly connected to the upper surface of the second connecting plate 20, and the outer wall of the support rod 18 is slidably connected to the inside of the second connecting plate 20.
[0028] Specifically, a second spring 19 is provided, and the first connecting plate 17 is connected to the second connecting plate 20 through a support rod 18. When subjected to pressure, the first connecting plate 17 will be pressed downward. At this time, since the second connecting plate 20 is fixed to the connecting column 16, the second spring 19 will absorb elastic potential energy, thereby reducing the pressure on the guide cap 1, completing the decompression, and improving the service life of the device.
[0029] Reference Figure 1 and Figure 5 The upper surface of the second connecting plate 20 is fixedly connected with the first connecting sleeve 21, and the first connecting sleeve 21 is slidably connected with the connecting block 27. The connecting block 27 is slidably connected with the limit rod 22. The outer wall of the limit rod 22 is sleeved with a third spring 23, and both ends of the third spring 23 are fixedly connected to one side of the outer wall of the connecting block 27. The upper surface of the connecting block 27 is rotatably connected with a connecting strip 24, and the middle part of the connecting strip 24 is rotatably connected with a rotating block 25. One end of the connecting strip 24 is slidably connected with the second connecting sleeve 26, and one side of the outer wall of the second connecting sleeve 26 is fixedly connected to the lower surface of the first connecting plate 17. The outer wall of the second connecting plate 20 is fixedly connected with the connecting column 16, and the outer wall of the connecting column 16 is fixedly connected with the outer shell 28, and the inner part of the outer shell 28 is fixedly connected with the floating shoe body 10;
[0030] Specifically, when the device is normally stationary, the second spring 19 will be compressed under the influence of its own gravity. If the device is in this state for a long time, it will cause a certain degree of damage to the second spring 19. Therefore, a first connecting sleeve 21 and a second connecting sleeve 26 are provided. They are connected by three connecting strips 24 and fixed in the middle by a rotating block 25. A limiting rod 22 is provided inside the first connecting sleeve 21 to guide the displacement of the connecting block 27. At the same time, a third spring 23 is provided. The above structure can support the first connecting plate 17. Through this structural combination, the service life of the second spring 19 is increased, and at the same time, to a certain extent, the second spring 19 is assisted to complete elastic contraction.
[0031] Working principle: by fixing the guide cap 1, the guide cap 1 is prevented from falling off from the device as a whole during use. During installation, the guide cap 1 is first fixed with the limiting groove 8, and the fixing rod 2 is first inserted into the rotating bearing 4, and then the rotating bearing 4 is fixed on the guide cap 1 through the fixing cap 3, and then the limiting groove 8 of the rotating bearing 4 is installed against the guide column 9. At this time, due to a slight slope of the fixing block 11, the fixing block 11 moves inside. When the rotating bearing 4 completely enters the interior of the fixing sleeve 6, the fixing block 11 pops up again under the action of the first spring 13 to fix the rotating bearing 4. At the same time, a sealing strip 5 and a sealing sheet 7 are provided to maintain the sealing of the device as a whole. After the above operation, the guide cap 1 is fixed to ensure that the guide cap 1 does not fall off during use. A second spring 19 is provided to connect the first connecting plate 17 with the second connecting plate 20 through the support rod 18. When the fixing block 11 is fixed, the fixing block 11 moves inside the fixing block 11. When the fixing block 11 is fixed, the fixing block 11 moves inside the fixing sleeve 6. When the rotating bearing 4 completely enters the interior of the fixing sleeve 6, the fixing block 11 pops up again under the action of the first spring 13 to fix the rotating bearing 4. At the same time, a sealing strip 5 and a sealing sheet 7 are provided to maintain the sealing of the device as a whole. After the above operation, the guide cap 1 is fixed to ensure that the guide cap 1 does not fall off during use. A second spring 19 is provided to connect the first connecting plate 17 with the second connecting plate 20 through the support rod 18. When the pressure is reached, the first connecting plate 17 will be pressed down. At this time, since the second connecting plate 20 is fixed to the connecting column 16, the second spring 19 will absorb the elastic potential energy, thereby reducing the pressure on the guide cap 1, completing the decompression and improving the service life of the device. When the device is normally stationary, the second spring 19 will be compressed under the influence of its own gravity. Being in this state for a long time will cause a certain degree of damage to the second spring 19. Therefore, a first connecting sleeve 21 and a second connecting sleeve 26 are provided. They are connected by three connecting strips 24 and fixed in the middle by a rotating block 25. A limiting rod 22 is provided inside the first connecting sleeve 21 to guide the displacement of the connecting block 27. At the same time, a third spring 23 is provided. The above structure can support the first connecting plate 17. Through this structural combination, the service life of the second spring 19 is improved, and at the same time, to a certain extent, the second spring 19 is assisted to complete elastic contraction.
[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A rotary floating shoe with an anti-falling function, comprising a guide cap (1), characterized in that: The lower surface of the guide cap (1) is fixedly connected to a fixing rod (2), one end of the fixing rod (2) is threadedly connected to a fixing cap (3), the outer wall of the fixing rod (2) is slidably connected to a rotating bearing (4), the outer wall of the rotating bearing (4) is provided with a limiting groove (8), the outer wall of the rotating bearing (4) is slidably connected to a fixing sleeve (6), the upper surface of the rotating bearing (4) is provided with a sealing strip (5), and a fixing component is provided inside the fixing sleeve (6), and the fixing component is used to fix the fixing sleeve (6) and the rotating bearing (4).
2. The rotary floating shoe with anti-falling function according to claim 1 is characterized in that: The fixing assembly comprises a fixing block (11), the outer wall of the fixing block (11) is slidably connected to the inside of the fixing sleeve (6), one side of the outer wall of the fixing block (11) is fixedly connected to a connecting rod (12), the outer wall of the connecting rod (12) is sleeved with a first spring (13), one end of the first spring (13) is fixedly connected to one end of the outer wall of the fixing block (11), the other end of the first spring (13) is fixedly connected to the inside of the fixing sleeve (6), one end of the connecting rod (12) is fixedly connected to a limiting plate (14), the outer wall of the fixing sleeve (6) is threadedly connected to a sealing plate (7), and the inner wall of the fixing sleeve (6) is fixedly connected to a guide column (9).
3. The rotary floating shoe with anti-falling function according to claim 2 is characterized in that: The lower surface of the fixing sleeve (6) is fixedly connected to a first connecting plate (17), the lower surface of the first connecting plate (17) is fixedly connected to an elastic column (15), the lower surface of the elastic column (15) is fixedly connected to a second connecting plate (20), the lower surface of the first connecting plate (17) is fixedly connected to a support rod (18), the outer wall of the support rod (18) is sleeved with a second spring (19), one end of the second spring (19) is fixedly connected to the lower surface of the first connecting plate (17), the other end of the second spring (19) is fixedly connected to the upper surface of the second connecting plate (20), and the outer wall of the support rod (18) is slidably connected to the inside of the second connecting plate (20).
4. The rotary floating shoe with anti-falling function according to claim 3 is characterized in that: The upper surface of the second connecting plate (20) is fixedly connected with a first connecting sleeve (21), the first connecting sleeve (21) is internally slidably connected with a connecting block (27), the connecting block (27) is internally slidably connected with a limiting rod (22), and the outer wall of the limiting rod (22) is sleeved with a third spring (23).
5. The rotary floating shoe with anti-falling function according to claim 4 is characterized in that: Both ends of the third spring (23) are fixedly connected to one side of the outer wall of the connecting block (27), and a connecting strip (24) is rotatably connected to the upper surface of the connecting block (27).
6. The rotary floating shoe with anti-falling function according to claim 5 is characterized in that: The middle part of the connecting strip (24) is rotatably connected to a rotating block (25), and one end of the connecting strip (24) is slidably connected to a second connecting sleeve (26).
7. The rotary floating shoe with anti-falling function according to claim 6 is characterized in that: One side of the outer wall of the second connecting sleeve (26) is fixedly connected to the lower surface of the first connecting plate (17), and the outer wall of the second connecting plate (20) is fixedly connected to a connecting column (16).
8. The rotary floating shoe with anti-falling function according to claim 7 is characterized in that: The outer wall of the connecting column (16) is fixedly connected to a housing (28), and the interior of the housing (28) is fixedly connected to a floating shoe body (10).