Splicing type rotational flow sand cleaning device

Abstract

The utility model provides a splicing type rotational flow sand cleaning device, which relates to the technical field of rotational flow sand cleaning devices and comprises a rotational flow body, a connecting groove is formed in the middle of the rotational flow body, a guide groove is formed in the surface of the connecting groove, and a movable sand cleaning frame is slidably connected in the guide groove. An assembled sand cleaning frame is arranged on one side of the movable sand cleaning frame, and elastic limiting blocks are fixedly installed at the two ends of the assembled sand cleaning frame. Compared with the prior art, the sand cleaning device has the advantages that the sand scraping structure of the sand cleaning device is divided into the two movable parts, one of the two movable parts is arranged to be the blocky assembly structure, the blocky assembly structure can be disassembled and assembled and the positions of the two movable parts can be replaced according to the use requirements of sand scraping, the direction of the sand scraping teeth can be adjusted, and the sand cleaning device is convenient to use. And therefore, the adjustable performance of the sand cleaning device is enhanced, the sand cleaning device can be conveniently adjusted and transformed according to the sand cleaning requirement, the practicability of the sand cleaning device is improved, and the sand cleaning blocks are attracted, spliced and fixed through the magnetic attraction effect between the magnet blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of cyclone sand cleaners, and particularly relates to a splicable cyclone sand cleaner. Background Art

[0002] During the drilling process of extended reach horizontal wells, it is extremely easy to form a cuttings bed, and it is easy to have downhole complex accidents such as difficult cuttings carrying, increased torque, reduced mechanical drilling speed, and stuck drill. During the drilling process of inclined wells and horizontal wells, due to the increased difficulty of mud carrying of cuttings, a cuttings bed is likely to be generated in the horizontal well section and the open hole section with a large well inclination. The accumulation of cuttings will cause the possibility of stuck drill, and at the same time will directly affect the cementing quality, resulting in a relatively thin local part of the cement sheath. Simply relying on the means and methods of vertical wellbore purification cannot solve this problem well. Through the flow field analysis of the well section with cuttings in the open hole, a cyclone sand cleaner has been developed. As an effective cuttings cleaning tool, it can not only prevent the formation of a cuttings bed, but also timely remove and destroy the formed cuttings bed; it has the characteristics of dual-action destruction of hydraulics and machinery to remove the cuttings bed.

[0003] The new splicable cyclone sand cleaner is introduced in CN216381275U. When the fluid in the sand cleaning end moves along the "V"-shaped groove, a certain swirl is generated, and the fluid in the periphery also generates swirls to varying degrees under the influence of the "V"-shaped groove, which is extremely beneficial to the carrying and removal of cuttings. This application designs a new splicable cyclone sand cleaner, which can adjust the direction of the scraping teeth of the cyclone sand cleaner, enhance the variability of the cyclone sand cleaner, enable the cyclone sand cleaner to meet more operation requirements, and enhance the practicability of the cyclone sand cleaner. Content of the Utility Model

[0004] The purpose of the utility model aims to solve at least one of the technical defects.

[0005] For this reason, one purpose of the utility model is to propose a splicable cyclone sand cleaner to solve the problems mentioned in the background art and overcome the deficiencies existing in the prior art.

[0006] To achieve the above purpose, an embodiment of one aspect of the utility model provides a splicable cyclone sand cleaner, which includes a plurality of cyclone bodies that can be spliced with each other. Both ends of the cyclone body are provided with sand guiding grooves. One end of the cyclone body is provided with a threaded connection groove, and the other end of the cyclone body is provided with a threaded connection post. A connection groove is opened in the middle of the cyclone body, a guiding groove is opened on the surface of the connection groove, an active sand cleaning frame is slidably connected inside the guiding groove, an assembled sand cleaning frame is arranged on one side of the active sand cleaning frame, and elastic limit blocks are fixedly installed at both ends of the assembled sand cleaning frame.

[0007] Preferably, according to any of the above solutions, the size of the threaded connection groove is adapted to the size of the threaded connection post. The connection groove is located between two sand guiding grooves. There are four guiding grooves, and the four guiding grooves are circumferentially arrayed inside the connection groove.

[0008] By adopting the above technical solution: Multiple cyclone sand cleaners can be connected pairwise through the threaded connection groove and the threaded connection post, realizing the assembly of multiple cyclone sand cleaners.

[0009] Preferably, according to any of the above solutions, a notch adapted to the connection groove is provided inside the movable sand cleaning frame. The surface of the notch is provided with guiding blocks distributed circumferentially. The guiding blocks are located inside the guiding grooves. Limiting grooves are provided at both ends of the movable sand cleaning frame.

[0010] By adopting the above technical solution: During the production of the cyclone sand cleaner, the movable sand cleaning frame and the cyclone body are made together. The movable sand cleaning frame can be installed first and then welded and closed and processed. The guiding blocks and the guiding grooves are used to ensure the stability of the movement of the movable sand cleaning frame and prevent relative rotation between the movable sand cleaning frame and the cyclone body.

[0011] Preferably, according to any of the above solutions, the assembled sand cleaning frame includes four sand cleaning blocks, an assembling groove and an assembling block. An assembling groove is provided at one end in the middle of the sand cleaning block, and an assembling block adapted to the assembling groove is fixedly connected to the other end in the middle of the sand cleaning block. The four sand cleaning blocks are assembled into a circular structure through the assembling groove and the assembling block.

[0012] By adopting the above technical solution: The four sand cleaning blocks can move relative to each other under the action of an external force. During the movement of the sand cleaning blocks, the assembling blocks move inside the assembling grooves. The assembling blocks are made of a material with a certain elasticity to ensure the normal movement of the sand cleaning blocks and avoid interference caused by rigid materials.

[0013] Preferably, according to any of the above solutions, inclined scraping teeth are provided on the surfaces of the movable sand cleaning frame and the sand cleaning blocks, and the inclined directions of the scraping teeth on the surfaces of the movable sand cleaning frame and the sand cleaning blocks are opposite.

[0014] By adopting the above technical solution: The scraping teeth on the surfaces of the movable sand cleaning frame and the sand cleaning blocks can respectively form "﹀" and "︿" at different positions, enabling the scraping teeth to perform scraping in different forms.

[0015] Preferably, according to any of the above solutions, magnet blocks are fixedly installed at the arc-shaped ends of both ends of the sand cleaning block, and limiting sliding grooves adapted to elastic limiting blocks are provided at the flat ends of both ends of the sand cleaning block.

[0016] By adopting the above technical solution: When the four sand cleaning blocks are assembled together, the magnet blocks adsorb each other to fix the sand cleaning blocks.

[0017] Preferably, according to any of the above solutions, the elastic limit block includes a limit spring and a limit latch. The limit spring is fixedly installed inside the sand cleaning block. One end of the limit spring is fixedly installed with a limit latch that is movably connected to the sand cleaning block. One end of the limit latch is provided with a rounded corner structure.

[0018] With the above technical solution: During the process of assembling the sand cleaning blocks together, the rounded corner of the limit latch is squeezed by the movable sand cleaning frame to compress the limit spring. After the sand cleaning blocks are assembled, the limit latch enters the inside of the limit groove under the action of the limit spring. When disassembling and assembling the sand cleaning blocks, a tool can be used to pull the sand cleaning block through the friction provided by the scraping teeth.

[0019] Compared with the prior art, the advantages and beneficial effects of the present utility model are as follows:

[0020] 1. The scraping structure of the sand cleaner is set to two movable parts, and one of them is set as a block assembly structure. It is possible to disassemble and assemble the block assembly structure according to the use requirements of scraping and replace the positions of the two movable parts, so as to realize the adjustment of the direction of the scraping teeth, thereby enhancing the adjustable performance of the sand cleaner, facilitating the adjustment and transformation of the sand cleaner according to the sand cleaning requirements, and improving the practicability of the sand cleaner.

[0021] 2. The sand cleaning blocks are adsorbed and assembled and fixed by the magnetic adsorption effect between the magnet blocks, and the elastic limit block is used to limit the connection between the movable sand cleaning frame and the sand cleaning blocks, enhancing the stability of the assembled sand cleaning frame and ensuring the stability of the use of the sand cleaner.

[0022] Additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0024] Figure 1 is a schematic structural diagram according to an embodiment of the present utility model;

[0025] Figure 2 is a schematic partial structural diagram according to an embodiment of the present utility model;

[0026] Figure 3 is a schematic structural diagram of the movable sand cleaning frame according to an embodiment of the present utility model;

[0027] Figure 4 is an exploded structural diagram of the assembled sand cleaning frame according to an embodiment of the present utility model;

[0028] Figure 5Schematic cross-sectional structure diagram of the assembled sand cleaning rack according to an embodiment of the present utility model;

[0029] Wherein: 1 - cyclone body, 2 - sand guiding groove, 3 - threaded connection groove, 4 - threaded connection column, 5 - connection groove, 6 - guiding groove, 7 - movable sand cleaning rack, 8 - assembled sand cleaning rack, 81 - sand cleaning block, 82 - assembling groove, 83 - assembling block, 9 - elastic limiting block, 91 - limiting spring, 92 - limiting clamping block, 10 - scraping teeth, 11 - magnet block. Specific embodiments

[0030] The following further describes the present utility model with reference to the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0031] As Figures 1-4 shown, a splicable cyclone sand cleaner according to an embodiment of the present utility model includes a plurality of cyclone bodies 1 that can be spliced with each other. Sand guiding grooves 2 are provided at both ends of the cyclone body 1. A threaded connection groove 3 is provided at one end of the cyclone body 1, and a threaded connection column 4 is provided at the other end of the cyclone body 1. A connection groove 5 is provided in the middle of the cyclone body 1. A guiding groove 6 is provided on the surface of the connection groove 5. A movable sand cleaning rack 7 is slidably connected inside the guiding groove 6. An assembled sand cleaning rack 8 is provided on one side of the movable sand cleaning rack 7. Elastic limiting blocks 9 are fixedly installed at both ends of the assembled sand cleaning rack 8.

[0032] Preferably, from any of the above solutions, the size of the threaded connection groove 3 is adapted to the size of the threaded connection column 4. The connection groove 5 is located between the two sand guiding grooves 2. There are four guiding grooves 6, and the four guiding grooves 6 are circumferentially arranged inside the connection groove 5.

[0033] Adopting the above technical solution: Multiple cyclone sand cleaners can be connected pairwise through the threaded connection groove 3 and the threaded connection column 4 to realize the assembly of multiple cyclone sand cleaners.

[0034] Preferably, from any of the above solutions, a notch adapted to the connection groove 5 is provided inside the movable sand cleaning rack 7. Guide blocks distributed circumferentially are provided on the surface of the notch. The guide blocks are located inside the guiding groove 6. Limiting grooves are provided at both ends of the movable sand cleaning rack 7.

[0035] Adopting the above technical solution: During the production of the cyclone sand cleaner, the movable sand cleaning rack 7 and the cyclone body 1 are made together. The movable sand cleaning rack 7 can be installed first and then welded and closed and processed. The movable sand cleaning rack 7 ensures the stability of its movement through the clamping of the guide blocks and the guiding grooves 6, and avoids relative rotation between the movable sand cleaning rack 7 and the cyclone body 1.

[0036] Preferably, according to any of the above solutions, the assembled sand cleaning frame 8 includes four sand cleaning blocks 81, an assembling groove 82, and an assembling block 83. An assembling groove 82 is formed at one end of the middle part of the sand cleaning block 81, and an assembling block 83 adapted to the assembling groove 82 is fixedly connected to the other end of the middle part of the sand cleaning block 81. The four sand cleaning blocks 81 are assembled into a circular structure through the assembling groove 82 and the assembling block 83.

[0037] Adopting the above technical solution: The four sand cleaning blocks 81 can move relative to each other under an external force. During the movement of the sand cleaning blocks 81, the assembling block 83 moves inside the assembling groove 82. The assembling block 83 is made of a material with a certain elasticity to ensure the normal movement of the sand cleaning blocks 81 and avoid interference caused by rigid materials.

[0038] Preferably, according to any of the above solutions, inclined scraping teeth 10 are provided on the surfaces of the movable sand cleaning frame 7 and the sand cleaning blocks 81, and the inclined directions of the scraping teeth 10 on the surfaces of the movable sand cleaning frame 7 and the sand cleaning blocks 81 are opposite.

[0039] Adopting the above technical solution: The scraping teeth 10 on the surfaces of the movable sand cleaning frame 7 and the sand cleaning blocks 81 can respectively form "﹀" and "︿" at different positions, enabling the scraping teeth 10 to perform scraping in different forms.

[0040] Preferably, according to any of the above solutions, magnet blocks 11 are fixedly installed at the arc-shaped ends of both ends of the sand cleaning block 81, and limiting sliding grooves adapted to the elastic limiting blocks 9 are formed at the flat ends of both ends of the sand cleaning block 81.

[0041] Adopting the above technical solution: When the four sand cleaning blocks 81 are assembled together, the magnet blocks 11 adsorb each other to fix the sand cleaning blocks 81.

[0042] Preferably, according to any of the above solutions, the elastic limiting block 9 includes a limiting spring 91 and a limiting block 92. The limiting spring 91 is fixedly installed inside the sand cleaning block 81, and a limiting block 92 movably connected to the sand cleaning block 81 is fixedly installed at one end of the limiting spring 91. One end of the limiting block 92 is provided with a rounded corner structure.

[0043] Adopting the above technical solution: During the process of assembling the sand cleaning blocks 81 together, the rounded corner of the limiting block 92 is squeezed by the movable sand cleaning frame 7 to compress the limiting spring 91. After the sand cleaning blocks 81 are assembled, the limiting block 92 enters the inside of the limiting groove under the action of the limiting spring 91. When disassembling and assembling the sand cleaning blocks 81, a tool can be used to pull the sand cleaning block 82 by the friction provided by the scraping teeth 10.

[0044] The working principle of a splicable cyclone sand cleaner of the present invention is as follows:

[0045] When it is necessary to adjust the direction of the scraping teeth 10 of the cyclone sand cleaner, use a pulling tool to pull the sand cleaning block 81 to separate it, move the sand cleaning block 81 and the movable sand cleaning frame 7 to replace their positions, and close the sand cleaning block 81 towards the center of the circle. During this process, the limit block 92 moves inside the movable sand cleaning frame 7.

[0046] Compared with the prior art, the utility model has the following beneficial effects over the prior art:

[0047] 1. The sand scraping structure of the sand cleaner is set as two movable parts, and one of them is set as a block assembly structure. It can disassemble and assemble the block assembly structure according to the use requirements of sand scraping and replace the positions of the two movable parts, so as to realize the adjustment of the direction of the scraping teeth 10, thereby enhancing the adjustable performance of the sand cleaner, facilitating the adjustment and transformation of the sand cleaner according to the sand cleaning requirements, and improving the practicability of the sand cleaner.

[0048] 2. The sand cleaning block 81 is adsorbed and assembled and fixed by the magnetic adsorption effect between the magnet blocks 11, and the elastic limit block 9 is used to limit the connection between the movable sand cleaning frame 7 and the sand cleaning block 81, enhancing the stability of the assembled sand cleaning frame 8 and ensuring the stability of the use of the sand cleaner.

Claims

1. A splicable cyclone sand cleaning device, comprising a plurality of cyclone bodies (1) that can be spliced ​​with each other, wherein both ends of the cyclone body (1) are provided with sand guide grooves (2), one end of the cyclone body (1) is provided with a threaded connection groove (3), and the other end of the cyclone body (1) is provided with a threaded connection column (4), characterized in that: A connecting groove (5) is provided in the middle of the cyclone body (1), a guide groove (6) is provided on the surface of the connecting groove (5), a movable sand cleaning frame (7) is slidably connected inside the guide groove (6), an assembled sand cleaning frame (8) is provided on one side of the movable sand cleaning frame (7), and elastic limit blocks (9) are fixedly installed at both ends of the assembled sand cleaning frame (8).

2. The splicable cyclone sand cleaner according to claim 1, characterized in that: The size of the threaded connection groove (3) is matched with the size of the threaded connection column (4); the connection groove (5) is located between the two sand guide grooves (2); there are four guide grooves (6), and the four guide grooves (6) are arranged in a circumferential array inside the connection groove (5).

3. The splicable cyclone sand cleaner according to claim 2, characterized in that: The movable sand cleaning frame (7) has a slot matched with the connecting groove (5) formed inside, and the surface of the slot is provided with guide blocks distributed circumferentially, and the guide blocks are located inside the guide groove (6). Limiting grooves are formed at both ends of the movable sand cleaning frame (7).

4. The splicable cyclone sand cleaner according to claim 3, characterized in that: The assembled sand cleaning frame (8) comprises four sand cleaning blocks (81), an assembling groove (82) and an assembling block (83); one end of the middle portion of the sand cleaning block (81) is provided with an assembling groove (82); the other end of the middle portion of the sand cleaning block (81) is fixedly connected with an assembling groove (82) adapted to the assembling groove (82); the four sand cleaning blocks (81) are assembled into a circular structure through the assembling groove (82) and the assembling block (83).

5. The connectable cyclone sand cleaner according to claim 4, characterized in that: Inclined scraping teeth (10) are provided on the surfaces of the movable sand cleaning frame (7) and the sand cleaning block (81), and the inclination directions of the scraping teeth (10) on the surfaces of the movable sand cleaning frame (7) and the sand cleaning block (81) are opposite.

6. The connectable cyclone sand cleaner according to claim 5, characterized in that: Magnet blocks (11) are fixedly mounted on the arc ends at both ends of the sand cleaning block (81), and limiting sliding grooves matching the elastic limiting blocks (9) are provided on the plane ends at both ends of the sand cleaning block (81).

7. The splicable cyclone sand cleaner according to claim 6, characterized in that: The elastic limit block (9) comprises a limit spring (91) and a limit clamping block (92); the limit spring (91) is fixedly mounted inside the sand cleaning block (81); one end of the limit spring (91) is fixedly mounted with a limit clamping block (92) movably connected to the sand cleaning block (81); one end of the limit clamping block (92) is arranged to have a rounded corner structure.

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