High-pressure-resistant cyclone desander for petroleum drilling and production
By introducing a transition box and a filtration mechanism into the cyclone sand separator, the problem of equipment wear caused by fine sand being discharged with the liquid is solved, achieving a long service life and easy maintenance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-21
AI Technical Summary
Under high pressure, existing hydrocyclone sand separators cause fine sand to be discharged with the liquid due to its low density and insufficient centrifugal force, leading to wear and tear on downstream equipment and shortening its lifespan.
A high-pressure cyclone sand separator was designed, which includes a transition box and a filtration mechanism. The liquid is further filtered through the filter frame to prevent fine sand from being discharged with the liquid, and the box cover can be easily disassembled for maintenance and cleaning when needed.
It effectively prevents fine sand from being discharged with the liquid, protects downstream equipment, extends equipment life, is easy to operate, and is highly practical.
Smart Images
Figure CN224142507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil drilling and production technology, specifically to a high-pressure cyclone desander used in oil drilling. Background Technology
[0002] The hydrocyclone desander used in oil drilling is a solid-liquid separation device designed specifically for the high-pressure environment of oil and gas fields. It efficiently removes sand and rock cuttings from drilling fluid through centrifugal force enhanced separation technology, ensuring the stable operation of the drilling system. Hydrocyclone desanders are usually made of 316L stainless steel or nickel-based alloys, which are resistant to H2S / CO2 corrosion and extend their service life in high-temperature and high-pressure environments.
[0003] In a high-pressure cyclone sand separator, coarse sand particles move towards the outer wall under the centrifugal force generated by the high-speed cyclone and are eventually discharged through the bottom sand outlet. The liquid is discharged from the top drain pipe. However, fine sand may be discharged with the liquid due to its low density and insufficient centrifugal force. The liquid mixed with fine sand may cause mechanical wear on downstream pumps, valves and pipelines, shortening the service life of the equipment.
[0004] Therefore, a high-pressure cyclone desander for oil drilling is proposed. Summary of the Invention
[0005] The purpose of this utility model is to solve the problems mentioned in the background art above, and to provide a high-pressure cyclone desander for oil drilling.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] A high-pressure cyclone desander for oil drilling includes a high-pressure cyclone desander body and a cover. The high-pressure cyclone desander body is equipped with support legs. An inlet pipe is located on one side of the high-pressure cyclone desander body, and an outlet pipe is located on one side of the outlet pipe. A transition box is located on one side of the transition box, and a reinforcing plate is located on one side of the transition box, which is mounted on the support legs. A connecting pipe is located on the transition box. A fixing mechanism is provided on the transition box to press and fix the cover onto the transition box, and the fixing mechanism is located on the cover. A filtration mechanism for filtering the discharged liquid is located inside the transition box, and the filtration mechanism is in contact with the cover.
[0008] Furthermore, the fixing mechanism includes a mounting frame, which is fixedly mounted on the surface of the transition box. A positioning rod is slidably mounted on the inner wall of the mounting frame, and the positioning rod is fixedly mounted on the surface of the box cover.
[0009] Furthermore, a sealing gasket is fixedly installed on the inner wall of the mounting frame, and the sealing gasket is made of rubber.
[0010] Furthermore, two slide rails are fixedly installed on the surface of the transition box, and two movable supports are slidably installed on the two slide rails.
[0011] Furthermore, two elastic telescopic columns are fixedly installed on each of the two movable supports, and two lifting plates are fixedly installed on the surface of the four elastic telescopic columns. The lifting plates are inserted into the box cover. T-shaped studs are rotatably installed on both lifting plates, and the T-shaped studs are threaded onto the movable supports. Knobs are fixedly installed on the surface of both T-shaped studs.
[0012] Furthermore, the filtering mechanism includes a filter frame, a positioning groove is provided on the inner wall of the transition box, and the filter frame is slidably installed on the inner wall of the positioning groove. An L-shaped plate is fixedly installed on the surface of the filter frame, and the L-shaped plate is in contact with the box cover.
[0013] The beneficial effects of this utility model are as follows:
[0014] This invention, through the arrangement of a transition box, a fixing mechanism, and a filtration mechanism, allows liquid to enter the main body of the high-pressure cyclone sand separator through the inlet pipe during use. The main body of the high-pressure cyclone sand separator separates the liquid, and the sand particles move towards the outer wall under the centrifugal force generated by the high-speed cyclone, eventually being discharged through the sand discharge port at the bottom of the main body of the high-pressure cyclone sand separator. The liquid, on the other hand, is discharged into the transition box through the outlet pipe. At this time, the filtration mechanism further filters the liquid to prevent fine sand from flowing with the liquid due to its low density and insufficient centrifugal force. Finally, the filtered liquid is discharged through the connecting pipe. After a period of use, the fixing mechanism can be used to release the pressure on the box cover, allowing the box cover to be removed from the transition box for maintenance and cleaning. This further filters the liquid, preventing fine sand from being discharged with the liquid due to its low density and insufficient centrifugal force. This facilitates the installation and removal of the box cover and the cleaning of the filtered fine sand. The operation is simple and highly practical. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the slide rail of this utility model;
[0017] Figure 3 This is a schematic diagram of the mounting frame of this utility model.
[0018] Reference numerals in the attached drawings: 1. Main body of the high-pressure cyclone sand separator; 2. Support leg; 3. Inlet pipe; 4. Outlet pipe; 5. Transition box; 6. Reinforcing plate; 7. Box cover; 8. Connecting pipe; 9. Fixing mechanism; 901. Mounting frame; 902. Positioning rod; 903. Slide rail; 904. Moving bracket; 905. Elastic telescopic column; 906. Lifting plate; 907. T-shaped stud; 908. Knob; 10. Filtration mechanism; 1001. Positioning groove; 1002. Filter frame; 1003. L-shaped plate. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] The electrical components mentioned in this article are all connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can be used for control.
[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] like Figure 1-3As shown, an oil drilling rig uses a high-pressure cyclone desander, including a high-pressure cyclone desander body 1 and a cover 7. The high-pressure cyclone desander body 1 is equipped with support legs 2. An inlet pipe 3 is located on one side of the high-pressure cyclone desander body 1, and an outlet pipe 4 is located on one side of the outlet pipe 4. A transition box 5 is located on one side of the transition box 5, and a reinforcing plate 6 is located on one side of the transition box 5, with the reinforcing plate 6 mounted on the support legs 2. A connecting pipe 8 is located on the transition box 5, and a fixing mechanism 9 is provided on the transition box 5 to press and fix the cover 7 onto the transition box 5, with the fixing mechanism 9 mounted on the cover 7. Figure 1-3 As shown, specifically, the fixing mechanism 9 includes a mounting frame 901, which is fixedly mounted on the surface of the transition box 5. A positioning rod 902 is slidably mounted on the inner wall of the mounting frame 901, and the positioning rod 902 is fixedly mounted on the surface of the box cover 7. A sealing gasket made of rubber is fixedly mounted on the inner wall of the mounting frame 901. Two slide rails 903 are fixedly mounted on the surface of the transition box 5. Two movable supports 904 are slidably mounted on the two slide rails 903. Two elastic telescopic columns 905 are fixedly mounted on each of the two movable supports 904. Two lifting plates 906 are fixedly mounted on the surface of the four elastic telescopic columns 905, and the lifting plates 906 are inserted into the box cover 7. T-shaped studs 907 are rotatably mounted on each of the two lifting plates 906, and the T-shaped studs 907 are threaded onto the movable supports 904. A knob 908 is fixedly mounted on the surface of each of the two T-shaped studs 907.
[0025] More specifically, by inserting the positioning rod 902 into the mounting frame 901 and making it contact with the sealing gasket, the installation and positioning of the box cover 7 is completed. Then, pushing the movable bracket 904 allows it to slide within the slide rail 903. By turning the knob 908, the T-shaped stud 907 is rotated and moved downward, causing the elastic telescopic column 905 to stretch and push the lifting plate 906 to be inserted into the box cover 7, pressing it down so that it is tightly fitted with the positioning rod 902 and the sealing gasket. Thus, the transition box 5 and the box cover 7 are fixed together. Since the lifting plate 906 is inserted into the box cover 7, it also restricts the movement of the movable bracket 904, thereby facilitating the installation and disassembly of the box cover 7.
[0026] The transition box 5 is equipped with a filter mechanism 10 for filtering the discharged liquid, and the filter mechanism 10 is in contact with the box cover 7, such as... Figure 1-3 As shown, specifically, the filter mechanism 10 includes a filter frame 1002, a positioning groove 1001 is provided on the inner wall of the transition box 5, and the filter frame 1002 is slidably installed on the inner wall of the positioning groove 1001. An L-shaped plate 1003 is fixedly installed on the surface of the filter frame 1002, and the L-shaped plate 1003 is in contact with the box cover 7.
[0027] More specifically, when liquid falls onto the filter frame 1002, the filter frame 1002 filters the liquid, preventing fine sand from being discharged with the liquid. After a period of use, the fixing between the cover 7 and the transition box 5 can be released, thus releasing the restriction of the cover 7 on the L-shaped plate 1003. At this time, the filter frame 1002 and the L-shaped plate 1003 can be removed for cleaning and maintenance of the filter frame 1002.
[0028] In summary, during use, liquid enters the body 1 of the high-pressure cyclone sand separator through the inlet pipe 3. The body 1 separates the liquid, and the sand particles move towards the outer wall under the centrifugal force generated by the high-speed cyclone and are finally discharged through the sand discharge port at the bottom of the body 1. The liquid, on the other hand, is discharged from the outlet pipe 4 into the transition box 5. At this time, the filter mechanism 10 further filters the liquid to prevent fine sand from flowing with the liquid due to its low density and insufficient centrifugal force. Finally, the filtered liquid is discharged through the connecting pipe 8. After the filter mechanism 10 has been used for a period of time, the clamping mechanism 9 can be used to release the pressure on the cover 7 and remove the cover 7 from the transition box 5 for maintenance and cleaning of the filter mechanism 10. This achieves further filtration of the liquid and prevents fine sand from being discharged with the liquid due to its low density and insufficient centrifugal force. This also facilitates the installation and removal of the cover 7 and the cleaning of the filtered fine sand. The operation is simple and highly practical.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A high-pressure-resistant cyclone desander for oil drilling, comprising a high-pressure-resistant cyclone desander body (1), a box cover (7), characterized in that, The high-pressure cyclone sand separator body (1) is provided with a support foot (2), the high-pressure cyclone sand separator body (1) is provided with an inlet pipe (3) on one side, the high-pressure cyclone sand separator body (1) is provided with an outlet pipe (4) on one side, the outlet pipe (4) is provided with a transition box (5) on one side, the transition box (5) is provided with a reinforcing plate (6) on one side, and the reinforcing plate (6) is provided on the support foot (2), the transition box (5) is provided with a connecting pipe (8), the transition box (5) is provided with a fixing mechanism (9) for pressing and fixing the box cover (7) on the transition box (5), and the fixing mechanism (9) is provided on the box cover (7), the transition box (5) is provided with a filter mechanism (10) for filtering the discharged liquid, and the filter mechanism (10) is in contact with the box cover (7).
2. A high pressure cyclone desander for use in oil drilling as claimed in claim 1 wherein, The fixing mechanism (9) includes a mounting frame (901), which is fixedly mounted on the surface of the transition box (5). A positioning rod (902) is slidably mounted on the inner wall of the mounting frame (901), and the positioning rod (902) is fixedly mounted on the surface of the box cover (7).
3. A high pressure cyclone desander for use in oil drilling as claimed in claim 2, wherein, A sealing gasket is fixedly installed on the inner wall of the mounting frame (901), and the sealing gasket is made of rubber.
4. The high pressure cyclone desander for oil drilling as claimed in claim 2, wherein, Two slide rails (903) are fixedly installed on the surface of the transition box (5), and two movable brackets (904) are slidably installed on the two slide rails (903).
5. A high pressure cyclonic desander for use in oil drilling as claimed in claim 4, wherein, Two elastic telescopic columns (905) are fixedly installed on each of the two movable supports (904). Two lifting plates (906) are fixedly installed on the surface of the four elastic telescopic columns (905), and the lifting plates (906) are inserted into the box cover (7). T-shaped studs (907) are rotatably installed on each of the two lifting plates (906), and the T-shaped studs (907) are threaded onto the movable supports (904). A knob (908) is fixedly installed on the surface of each of the two T-shaped studs (907).
6. The high pressure cyclone desander for oil drilling according to claim 1, characterized in that, The filtering mechanism (10) includes a filter frame (1002), and a positioning groove (1001) is provided on the inner wall of the transition box (5). The filter frame (1002) is slidably installed on the inner wall of the positioning groove (1001). An L-shaped plate (1003) is fixedly installed on the surface of the filter frame (1002), and the L-shaped plate (1003) is in contact with the box cover (7).