Overhead tank filtering device

Abstract

The utility model discloses an elevated tank filtering device, which relates to the technical field of thickened oil filtering and comprises an elevated tank, a fixed groove component, a filtering piece, a fixed plate and a pressing plate, the fixing groove assembly comprises a first fixing groove and a second fixing groove, and the first fixing groove and the second fixing groove are formed in the different inner sides of the elevated groove respectively. Fixing plates are arranged at the two side ends of the filtering part respectively, and the fixing plates are mounted on the elevated groove through the first fixing grooves and the second fixing grooves; pressing plates are mounted at the top ends of the filtering pieces; drilling fluid flows inside the elevated tank. According to the utility model, upward-returning thick oil is effectively prevented from entering a drilling fluid circulating system to cause blockage and influence on drilling time efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of thick oil filtering, in particular to an elevated tank filtering device. Background Art

[0002] When drilling at the heavy oil block in the Tahe Oilfield encounters heavy oil stored in dissolved holes or cracks in the cave roof, the oil in the wellbore circulates and displaces upward with the drilling fluid. This causes the accumulation of granular, lumpy, columnar, and strip-like heavy oil on the wellhead, elevated troughs, and vibrating screens, resulting in blockages and an inability to establish effective circulation. The site currently lacks filtration equipment to handle the heavy oil, and the oil returning from the wellhead accumulates in the circulation system, impacting normal construction progress.

[0003] Existing methods for cleaning heavy oil returned from wellbores lack an elevated trough filtration system. Heavy oil returning from the wellbore enters the drilling fluid circulation system, causing blockage and accumulation. This prevents proper circulation in the wellbore, severely impacting drilling progress. Furthermore, workers are unable to effectively collect the heavy oil, and manual disposal of the heavy oil particles is slow. To ensure the effective and timely collection and cleaning of heavy oil returning from the wellhead, reducing the time and potential risks of subsequent operations, filtering the fluid returning from the elevated trough is necessary.

[0004] Therefore, it is necessary to design an elevated tank filtering device that can effectively filter heavy oil. Utility Model Content

[0005] In order to solve the existing problem that heavy oil returns from the wellbore into the drilling fluid circulation system, causing blockage and accumulation, resulting in the wellbore being unable to establish normal circulation and seriously affecting the drilling construction progress, the utility model provides an elevated trough filtering device.

[0006] In order to achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows:

[0007] An elevated tank filter device includes an elevated tank, a fixed groove assembly, a filter element, a fixed plate and a pressure plate; the fixed groove assembly includes a first fixed groove and a second fixed groove, and the first fixed groove and the second fixed groove are respectively arranged on different inner sides of the elevated tank; the two side ends of the filter element are respectively provided with fixed plates, and the fixed plates are installed on the elevated tank through the first fixed groove and the second fixed groove; a pressure plate is installed on the top of the filter element; drilling fluid flows inside the elevated tank.

[0008] Based on the above technical solution, further, the elevated trough includes a horizontal plate, a first vertical plate and a second vertical plate, and the first vertical plate and the second vertical plate are installed on both sides of the horizontal plate to form a U-shaped structure.

[0009] Based on the above technical solution, further, the first fixing groove is installed on the first vertical plate.

[0010] Based on the above technical solution, further, the second fixing groove is installed on the second vertical plate.

[0011] Based on the above technical solution, further, the filter element is a filter screen.

[0012] Based on the above technical solution, further, two fixing plates are provided, which are respectively provided on both sides of the filter element, and one side of the filter element is connected to the first fixing groove through a fixing plate, and the other side of the filter element is connected to the second fixing groove through a fixing plate.

[0013] Based on the above technical solution, further, the short side length of the pressing plate is greater than the short side length of the filter element.

[0014] Based on the above technical solution, further, the shape of the first fixing groove is U-shaped, and the fixing plate is adapted to be inside the U-shape.

[0015] Based on the above technical solution, further, the shape of the second fixing groove is U-shaped, and the fixing plate is adapted to be inside the U-shape.

[0016] Based on the above technical solution, further, a handle structure is provided at the upper end of the pressing plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are specifically embodied in:

[0018] (1) The structure of the filtering device of the present invention can place the heavy oil fixing plate into the first fixing groove and the second fixing groove. By closely connecting the fixing plate with the first fixing groove and the second fixing groove, the heavy oil returned from the wellbore is effectively isolated in the elevated groove for collection and cleaning, preventing the heavy oil from entering the circulation system and causing blockage, significantly improving the cleaning rate when the heavy oil in the wellbore is returned to the elevated groove, and greatly improving the efficiency of workers in handling heavy oil particles.

[0019] (2) The utility model effectively collects and concentrates heavy oil particles through a filter with a specific mesh size, thereby improving the efficiency of workers in handling the oil. At the same time, it effectively prevents the returned heavy oil from entering the drilling fluid circulation system, causing blockage and affecting drilling time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a partial explosion structure of the elevated tank filtration device of the utility model;

[0021] Reference numerals:

[0022] 1. Elevated trough; 2. Fixed groove assembly; 3. Fixed plate; 4. Filter screen; 5. Press plate; 6. Handle; 7. Drilling fluid. DETAILED DESCRIPTION

[0023] The present invention will be further described and illustrated below in conjunction with the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention can be combined accordingly without conflict.

[0024] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. The technical features of the various embodiments of the present invention may be combined accordingly, provided that there is no conflict between them.

[0025] In the description of the present invention, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to the other element or indirectly connected, that is, there are intermediate elements. On the contrary, when an element is said to be "directly" connected to another element, there are no intermediate elements.

[0026] In the description of this utility model, it should be understood that the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0027] Example

[0028] Combine Figure 1As shown, this embodiment provides an elevated trough filtration device, which includes an elevated trough 1, a fixed groove assembly 2, a filter element, a fixed plate 3, and a pressure plate 5; the fixed groove assembly 2 includes a first fixed groove and a second fixed groove, and the first fixed groove and the second fixed groove are respectively arranged on different inner sides of the elevated trough 1; the two side ends of the filter element are respectively provided with fixed plates 3, and the fixed plates 3 are installed on the elevated trough 1 through the first fixed groove and the second fixed groove; the top of the filter element is installed with a pressure plate 5, preferably, the filter element is a filter screen 4, the short side length of the pressure plate 5 is greater than the short side length of the filter element, and the cross-sectional area of ​​the pressure plate 5 is greater than the cross-sectional area of ​​the upper end of the filter element. The drilling fluid 7 flows inside the U-shaped elevated trough 1 and is filtered by the filter screen 4 structure during the flow. At the same time, a handle 6 structure is provided at the upper end of the pressure plate 5, which makes it easy to lift the filter screen 4 structure connected to the pressure plate 5 out of or put it into the fixed groove assembly 2 through the handle 6, and since the cross-sectional area of ​​the pressure plate 5 is larger than the cross-sectional area of ​​the upper end of the filter element in contact with the pressure plate 5, it is also convenient to apply a certain pressure downward to the pressure plate 5, so that the structure of the combination of the pressure plate 5, the filter screen 4 and the fixing part can be smoothly installed in the first fixed groove and the second fixed groove, thereby realizing the installation with the elevated trough 1.

[0029] In this embodiment, the elevated trough 1 includes a horizontal plate, a first vertical plate, and a second vertical plate. The first and second vertical plates are mounted on either side of the horizontal plate to form a U-shaped structure, and the first and second vertical plates are parallel. The first fixing groove is mounted on the first vertical plate, and the second fixing groove is mounted on the second vertical plate.

[0030] In some embodiments, two fixing plates 3 are provided, one on each side of the filter element, and one side of the filter element is connected to the first fixing groove via one fixing plate 3, while the other side of the filter element is connected to the second fixing groove via another fixing plate 3. Preferably, the first fixing groove and the second fixing groove are both U-shaped, and the fixing plate 3 fits within the U-shape.

[0031] During use, the fixing plate 3 is placed within the first and second fixing grooves. The tight connection between the fixing plate 3 and the first and second fixing grooves effectively isolates the heavy oil returning from the wellbore within the elevated tank 1 for collection and cleaning, preventing it from entering the circulation system and causing blockage. This significantly increases the cleaning rate of the heavy oil returning from the wellbore to the elevated tank 1, greatly improving the efficiency of workers in handling heavy oil particles. Currently, this device is in practical use, and the time required to manually handle heavy oil accumulated in the elevated tank 1 during heavy oil return has increased by over 30%.

[0032] The above is only an embodiment of the present invention, and its description is relatively specific and detailed, but it should not be understood as limiting the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, various modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention.

Claims

1. An elevated tank filtration device, characterized in that: Includes an elevated trough, a fixed groove assembly, a filter element, a fixing plate, and a pressure plate; The fixing groove assembly includes a first fixing groove and a second fixing groove, and the first fixing groove and the second fixing groove are respectively arranged on different inner sides of the elevated groove; The two side ends of the filter element are respectively provided with fixing plates, and the fixing plates are installed on the elevated tank through the first fixing groove and the second fixing groove; the top of the filter element is installed with a pressing plate; The drilling fluid flows inside the elevated tank.

2. An elevated tank filtration device according to claim 1, characterized in that: The elevated trough includes a horizontal plate, a first vertical plate and a second vertical plate, and the first vertical plate and the second vertical plate are installed on both sides of the horizontal plate to form a U-shaped structure.

3. An elevated tank filtration device according to claim 2, characterized in that: The first fixing groove is installed on the first vertical plate.

4. The elevated tank filtration device according to claim 1, characterized in that: The second fixing groove is installed on the second vertical plate.

5. The elevated tank filtration device according to claim 1, characterized in that: The filter element is a filter screen.

6. The elevated tank filtration device according to claim 1, characterized in that: There are two fixing plates, which are respectively arranged on both sides of the filter element, and one side of the filter element is connected to the first fixing groove through a fixing plate, and the other side of the filter element is connected to the second fixing groove through a fixing plate.

7. The elevated tank filtration device according to claim 1, characterized in that: The short side length of the pressing plate is greater than the short side length of the filter element.

8. The elevated tank filtration device according to claim 1, characterized in that: The first fixing groove is in a U-shape, and the fixing plate fits into the U-shape.

9. The elevated tank filtration device according to claim 1, characterized in that: The second fixing groove is U-shaped, and the fixing plate is adapted to fit inside the U-shape.

10. The elevated tank filtration device according to claim 1, characterized in that: The upper end of the pressing plate is also provided with a handle structure.

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