Automatic suction device for drilling mud

Abstract

The utility model relates to mud pumping technical field especially relates to automatic pumping device of drilling mud. Its technical scheme: including slurry pool and slurry pump, the slurry pool is divided into gravel cavity and slurry cavity through the baffle in, the upper end of gravel cavity is fixed with filter screen, a pair of mounting blocks is connected with the upper end of slurry pool and slides, the slurry pump is fixed on one mounting block, the outlet pipe end of slurry pump is fixed with the shunt pipe, the shunt pipe is fixed with the pipe of rowing in, the upper end opening of slurry pool is provided with the drive assembly of drive mounting block sliding, the scraper is installed between the mounting block, the scraper bottom is located above filter screen. The utility model evenly shunts the mud that draws to the different position on filter screen, and utilizes scraper to scrape the surface gravel, can greatly improve the filtering efficiency to the gravel in mud, and then can better carry out mud circulation.

Description

Technical Field

[0001] This utility model relates to the field of mud suction technology, specifically to an automatic drilling mud suction device. Background Technology

[0002] Drilling mud plays a crucial role in the drilling process by cooling the drill bit, carrying cuttings, stabilizing the wellbore, and balancing formation pressure. Mud suction is an important component of the drilling fluid circulation system. Through suction, mud containing cuttings can be transported from the bottom of the well to the surface, purified, and then reinjected into the well to ensure the smooth progress of drilling operations.

[0003] After the mud is extracted, it needs to be filtered to remove any mixed gravel before it can be returned to the well. However, if the mud is injected through a separate pipe, the mud will always be filtered at the same location in the filtration structure when it enters the mud pit. This can easily cause the filtration structure to become clogged, and its filtration capacity is relatively limited. It cannot guarantee efficient circulation of the mud, and the failure to remove gravel in a timely manner will also increase the risk of clogging. Utility Model Content

[0004] The purpose of this invention is to provide an automatic drilling mud suction device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a mud tank and a mud pump. The mud tank is divided into a crushed stone chamber and a mud chamber by a partition. A filter screen is fixed to the upper end of the crushed stone chamber. A pair of mounting blocks are slidably connected to the upper end of the mud tank. The mud pump is fixed to one of the mounting blocks. A diversion pipe is fixed to the end of the outlet pipe of the mud pump. An inlet pipe is fixed to the diversion pipe. A driving assembly for driving the mounting blocks to slide is provided at the upper opening of the mud tank. A scraper is installed between the mounting blocks, with the bottom of the scraper located above the filter screen.

[0006] Preferably, the drive assembly includes a side plate and a linkage plate. The linkage plate is fixed between the upper ends of the mounting blocks, and the side plates are fixed on both sides of the upper end of the mud tank. A threaded rod is rotatably connected between the side plates, and the threaded rod passes through the linkage plate and is threadedly connected to the linkage plate.

[0007] Preferably, a servo motor is fixed to the outer side of the side plate, the output end of the servo motor is fixed to the threaded rod, a guide rod is fixed between the side plates, and the guide rod passes through the linkage plate and is slidably connected to the linkage plate.

[0008] Preferably, the bottom of the mounting block is provided with a sliding groove, and the upper end of the mud pool is located in the sliding groove.

[0009] Preferably, the mounting block has a mounting groove on one side close to each other, and a mounting shaft is rotatably connected in the mounting groove. The two ends of the scraper are located in the mounting groove and are fixedly connected to the mounting shaft. The mounting groove is a right-angled trapezoidal groove.

[0010] Preferably, a return pipe is fixed below the side wall of the mud tank, and a suction hose is fixed to the inlet pipe of the mud pump.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the extracted mud is evenly distributed to different positions on the filter screen, and the surface gravel is scraped off by a scraper, which can greatly improve the filtration efficiency of gravel in the mud, and thus enable better mud circulation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of the automatic drilling mud suction device of this utility model.

[0013] Figure 2 This is a top view of the automatic drilling mud suction device of this utility model.

[0014] Figure 3 This is a schematic diagram of the installation block structure of the automatic drilling mud suction device of this utility model.

[0015] In the diagram: 1. Mud pit; 11. Baffle plate; 12. Crushed stone chamber; 13. Mud chamber; 14. Return pipe; 2. Mud pump; 21. Diverter pipe; 22. Discharge pipe; 23. Pumping hose; 3. Filter screen; 4. Mounting block; 41. Slide groove; 42. Mounting groove; 43. Mounting shaft; 5. Scraper; 6. Side plate; 61. Threaded rod; 62. Guide rod; 63. Servo motor; 64. Linkage plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3This utility model provides a technical solution: including a mud tank 1 and a mud pump 2. The mud tank 1 is divided into a crushing chamber 12 and a mud chamber 13 by a partition 11. A filter screen 3 is fixed at the upper end of the crushing chamber 12. A pair of mounting blocks 4 are slidably connected to the upper end of the mud tank 1. The mud pump 2 is fixed on one of the mounting blocks 4. A diversion pipe 21 is fixed at the end of the outlet pipe of the mud pump 2. An inlet pipe 22 is fixed on the diversion pipe 21. A driving assembly for driving the mounting blocks 4 to slide is provided at the upper opening of the mud tank 1. A scraper 5 is installed between the mounting blocks 4. The bottom of the scraper 5 is located above the filter screen 3. A return pipe 14 is fixed below the side wall of the mud tank 1. A suction hose 23 is fixed to the inlet pipe of the mud pump 2.

[0018] The drive assembly includes a side plate 6 and a linkage plate 64. The linkage plate 64 is fixed between the upper ends of the mounting blocks 4. The side plates 6 are fixed on both sides of the upper end of the mud tank 1. A threaded rod 61 is rotatably connected between the side plates 6. The threaded rod 61 passes through the linkage plate 64 and is threadedly connected to the linkage plate 64. A servo motor 63 is fixed on the outside of the side plates 6. The output end of the servo motor 63 is fixed on the threaded rod 61. A guide rod 62 is fixed between the side plates 6. The guide rod 62 passes through the linkage plate 64 and is slidably connected to the linkage plate 64.

[0019] The mounting block 4 has a mounting groove 42 on one side close to it. The mounting shaft 43 is rotatably connected in the mounting groove 42. The two ends of the scraper 5 are located in the mounting groove 42 and are fixedly connected to the mounting shaft 43. The mounting groove 42 is a right-angled trapezoidal groove. The bottom of the mounting block 4 has a sliding groove 41. The upper end of the mud tank 1 is located in the sliding groove 41.

[0020] Working principle: First, connect the entire device to an external power source and connect the suction hose 23 to the end of the drill rod. Use the mud pump 2 to automatically extract mud from the borehole and discharge it into the mud tank 1. At this time, the mud is discharged from the outlet pipe of the mud pump 2. After being diverted by the diversion pipe 21, it can be injected into the sewage tank through different discharge pipes 22. After being filtered by the filter screen 3, gravel in the mud can be removed. During this process, the servo motor 63 drives the threaded rod 61 to rotate, causing the linkage plate 64 to slide horizontally, which in turn drives the mounting block 4 to slide horizontally. During this process, the threaded rod 61 rotates, causing the linkage plate 64 to slide horizontally. The position of the discharge pipe 22 is constantly changing, and filtration is performed at different positions on the filter screen 3. This ensures that the filtered gravel is evenly distributed on the filter screen 3, reducing the risk of clogging. During the sliding of the mounting block 4, the scraper 5 can slide synchronously to scrape off the gravel on the surface of the filter screen 3, preventing it from accumulating on the filter screen 3. The scraper 5 is installed in right-angled trapezoidal grooves at both ends. When it moves towards the gravel chamber 12, it will only rotate to an upright position, while when it moves in the opposite direction, it can rotate to an inclined position. Therefore, it can achieve the purpose of always pushing the gravel towards the gravel chamber 12.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic drilling mud suction device, comprising a mud tank (1) and a mud pump (2), characterized in that: The mud tank (1) is divided into a crushed stone chamber (12) and a mud chamber (13) by a partition (11). A filter screen (3) is fixed at the upper end of the crushed stone chamber (12). A pair of mounting blocks (4) are slidably connected to the upper end of the mud tank (1). The mud pump (2) is fixed on one of the mounting blocks (4). A diversion pipe (21) is fixed at the end of the outlet pipe of the mud pump (2). An inlet pipe (22) is fixed on the diversion pipe (21). A drive assembly for driving the mounting blocks (4) to slide is provided at the upper opening of the mud tank (1). A scraper (5) is installed between the mounting blocks (4). The bottom of the scraper (5) is located above the filter screen (3).

2. The automatic drilling mud suction device according to claim 1, characterized in that: The drive assembly includes a side plate (6) and a linkage plate (64). The linkage plate (64) is fixed between the upper ends of the mounting block (4). The side plates (6) are fixed on both sides of the upper end of the mud tank (1). A threaded rod (61) is rotatably connected between the side plates (6). The threaded rod (61) passes through the linkage plate (64) and is threadedly connected to the linkage plate (64).

3. The automatic drilling mud suction device according to claim 2, characterized in that: A servo motor (63) is fixed on the outside of the side plate (6). The output end of the servo motor (63) is fixed on the threaded rod (61). A guide rod (62) is fixed between the side plates (6). The guide rod (62) passes through the linkage plate (64) and is slidably connected to the linkage plate (64).

4. The automatic drilling mud suction device according to claim 1, characterized in that: The bottom of the mounting block (4) is provided with a sliding groove (41), and the upper end of the mud pool (1) is located in the sliding groove (41).

5. The automatic drilling mud suction device according to claim 1, characterized in that: The mounting block (4) has a mounting groove (42) on one side close to each other. A mounting shaft (43) is rotatably connected in the mounting groove (42). Both ends of the scraper (5) are located in the mounting groove (42) and are fixedly connected to the mounting shaft (43). The mounting groove (42) is a right-angled trapezoidal groove.

6. The automatic drilling mud suction device according to claim 1, characterized in that: A return pipe (14) is fixed below the side wall of the mud tank (1), and a suction hose (23) is fixed to the inlet pipe of the mud pump (2).

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