System for collecting and cleaning geothermal well rock debris

Abstract

The utility model discloses a system for collecting and cleaning geothermal well rock debris, which comprises a vibrating screen, a cleaning mechanism, a water tank and a dryer, the vibrating screen is provided with a mixed feed port, the output end of the vibrating screen is provided with a discharge plate, a conveyor I and a conveyor II are arranged in the cleaning mechanism, and a cleaning brush is arranged on the conveyor I. When debris of a rock stratum with a certain depth is needed, the mud late time is calculated, the mud input port is connected into the mixed feeding port, and then the subsequent procedures of closed screening, cleaning, drying and the like are performed, so that the problem that rock debris is not completely collected is solved, the whole process is closed, and other rock debris is prevented from being mixed; according to the rock debris cleaning device, the first conveyor and the second conveyor rotate in the same direction, so that the cleaning brush on the first conveyor can brush rock debris, the rock debris can be gradually pushed to the next procedure by the push plate on the second conveyor, the problem that the bottom of the rock debris cannot be cleaned thoroughly is solved, automation of rock debris conveying is achieved, and manual labor is relieved.

Description

Technical Field

[0001] This utility model relates to the technical field of rock cuttings collection and cleaning systems, and in particular to a system for collecting and cleaning rock cuttings from geothermal wells. Background Technology

[0002] Geothermal energy is a green and clean resource, and accelerating its development is an important way to achieve dual-carbon goals. Geological cuttings logging is a crucial part of drilling geothermal wells. Cuttings logging allows for lithological analysis, providing important data for subsequent geological interpretation and other work; it can also be used to accurately delineate strata and determine the contact relationships between different strata, thus providing fundamental data for stratigraphic correlation and tectonic interpretation.

[0003] In the current technology, the collection of rock cuttings is still carried out by specialized logging personnel, who take steps such as retrieving, washing, and drying the rock cuttings. In this process, the rock cuttings are time-consuming and labor-intensive to retrieve, and there may be cases where the retrieval is incomplete or inaccurate. In addition, during the washing process, there is a possibility that the washing is not thorough or that other rock cuttings may be mixed in. Utility Model Content

[0004] Therefore, it is necessary to provide a system for collecting and cleaning cuttings from geothermal wells to address the aforementioned technical problems.

[0005] To achieve the above objectives, this utility model provides a system for collecting and cleaning rock cuttings from geothermal wells, including a vibrating screen, a cleaning mechanism, a water tank, and a dryer. The vibrating screen is provided with a mixing inlet and a discharge plate at its output end. The cleaning mechanism is equipped with a first conveyor and a second conveyor. A cleaning brush is installed on the first conveyor, and the discharge plate abuts against the cleaning brush. Several push plates are installed on the second conveyor. A rotary drive device is installed on the cleaning mechanism. A first transmission wheel and a second transmission wheel are respectively installed on the first and second conveyors. The diameter of the first transmission wheel is larger than that of the second transmission wheel. The output end of the rotary drive device is connected to the first transmission wheel. The first and second transmission wheels are connected by a transmission chain. The water tank is installed on the top of the cleaning mechanism and is configured to cooperate with the cleaning mechanism. A feed plate is installed at the output end of the dryer. The push plates are configured to cooperate with the cleaning brush, the discharge plate, and the feed plate.

[0006] Preferably, both the discharge plate and the feed plate should be inclined.

[0007] Preferably, the vibrating screen is equipped with a mud discharge port.

[0008] Preferably, the cleaning mechanism is equipped with several water spray heads, all of which are connected to a water tank, and a booster pump is installed on the water tank.

[0009] Preferably, all the spray heads are inclined.

[0010] Preferably, a scraper is installed at the bottom of the discharge plate, and the scraper is configured in conjunction with a cleaning brush.

[0011] Preferably, the scraper is provided with a discharge groove.

[0012] Compared with existing technologies, this technical solution has at least one of the following beneficial effects:

[0013] When debris from a rock layer at a certain depth is needed, the mud arrival time is calculated, the mud inlet is connected to the mixing inlet, and then the debris is subjected to subsequent closed screening, washing, drying and other processes to avoid the problem of incomplete collection of rock debris. The process is also completely closed to prevent mixing with other rock debris.

[0014] By rotating conveyor one and conveyor two in the same direction, the cleaning brush on conveyor one can scrub the rock chips, and the rock chips can be gradually pushed to the next process by the push plate on conveyor two. This avoids the problem of the bottom of the rock chips not being cleaned properly, and realizes the automation of rock chip conveying, reducing manual labor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] In the diagram, 1. Vibrating screen; 2. Cleaning mechanism; 3. Water tank; 4. Dryer; 5. Mixing inlet; 6. Discharge plate; 7. Conveyor 1; 8. Conveyor 2; 9. Cleaning brush; 10. Push plate; 11. Rotary drive device; 12. Drive wheel 1; 13. Drive wheel 2; 14. Drive chain; 15. Feed plate; 16. Slurry outlet; 17. Spray head; 18. Booster pump; 19. Scraper; 20. Discharge trough. Detailed Implementation

[0017] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0018] Please see Figure 1This application provides a system for collecting and cleaning rock cuttings from geothermal wells, including a vibrating screen 1, a cleaning mechanism 2, a water tank 3, and a dryer 4. Both the vibrating screen 1 and the dryer 4 are existing technologies. The vibrating screen 1 is equipped with a mixing inlet 5 and a discharge plate 6 at its output end. The cleaning mechanism 2 is equipped with a first conveyor 7 and a second conveyor 8. The first conveyor 7 is preferably a belt conveyor, and the second conveyor 8 is preferably a double-row chain conveyor. A cleaning brush 9 is installed on the first conveyor 7, covering its surface. The discharge plate 6 abuts against the cleaning brush 9. Several push plates 10 are installed on the second conveyor 8. A rotary drive device 11 is installed on the cleaning mechanism 2. The rotary drive device 11 can be a motor. The first conveyor 7 and the second conveyor 8 are respectively equipped with a first transmission wheel 12 and a second transmission wheel 13. The diameter of the first transmission wheel 12 is larger than that of the second transmission wheel 13. The output end of the rotary drive device 11 is connected to the first transmission wheel 12. The first transmission wheel 12 and the second transmission wheel 13 are connected by a transmission chain 14. The first transmission wheel 12, the second transmission wheel 13 and the transmission chain 14 can be selected as pulleys, belts or sprockets or chains. The water tank 3 is installed on the top of the cleaning mechanism 2. The water tank 3 is set in conjunction with the cleaning mechanism 2. The output end of the dryer 4 is equipped with a feed plate 15. The push plate 10 is set in conjunction with the cleaning brush 9, the discharge plate 6 and the feed plate 15.

[0019] In this embodiment, when collecting rock cuttings from a certain well depth, the mud arrival time is calculated. Then, at this time, the mud output port is switched so that the mud can enter the vibrating screen 1 from the mixing feed port 5. After the mud is initially screened by the vibrating screen 1, the rock cuttings screened out slide into the cleaning mechanism 2 through the discharge plate 6. At this time, the water outlet of the water tank 3 is opened, and the incoming rock cuttings are cleaned in the cleaning mechanism 2 to remove the mud, sand, etc. mixed in the rock cuttings. After the rock cuttings are cleaned, they are sent into the dryer 4 for drying. When rock chips slide from the discharge plate 6 to the cleaning mechanism 2, they are blocked by the rotating conveyor 7. When the push plate 10 on the conveyor 8 passes the rock chips on the discharge plate 6, it pushes them into the conveyor 7. Thus, the rock chips located between the conveyors 7 and 8 are moved forward by the two rotating conveyors in the same direction. This, combined with the water flow sprayed from the water tank 3, directly washes the upper surface of the rock chips. Meanwhile, the bottom of the rock chips is scrubbed by the cleaning brush 9 on the reverse-rotating conveyor 7, along with the residual water flow on the conveyor 7, thereby thoroughly cleaning the rock chips. After cleaning, the rock chips are pushed onto the feed plate 15 by the pusher plate 10 and then slide into the dryer 4 for drying. Since the drive shaft diameters of conveyor 7 and conveyor 8 are the same, when the rotary drive device 11 drives the drive wheel 12 on conveyor 7 to rotate, the transmission chain 14 and the larger diameter of drive wheel 12 enable drive wheel 12 to rotate one revolution while drive wheel 13 rotates several revolutions in the same direction. That is, conveyor 8 rotates faster than conveyor 7, so the rock chips can be pushed forward by the pusher plate 10.

[0020] In some embodiments, in order to facilitate the sliding of rock chips from the vibrating screen 1 into the cleaning mechanism 2, and then from the cleaning mechanism 2 into the dryer 4, both the discharge plate 6 and the feed plate 15 should be inclined.

[0021] In some embodiments, to facilitate the smooth discharge of mud after the vibrating screen 1 performs preliminary screening, a mud discharge port 16 is installed on the vibrating screen 1.

[0022] In some embodiments, to facilitate the washing of rock debris, a plurality of water nozzles 17 are installed on the cleaning mechanism 2. The water nozzles 17 should be high-pressure water nozzles with built-in control switches. All water nozzles 17 are connected to the water tank 3, and a booster pump 18 is installed on the water tank 3. Thus, under the pressure boosting of the water source in the water tank 3 by the booster pump 18, water can be sprayed out from the water nozzles 17 to wash the rock debris.

[0023] In some embodiments, the spray heads 17 are all inclined to increase the cleaning range of the spray head 17. Compared with the vertical setting of the spray head 17, the inclined spray head 17 can make the water flow over a greater distance.

[0024] In some embodiments, to facilitate cleaning of the cleaning brush 9, a scraper 19 is installed at the bottom of the discharge plate 6, and the scraper 19 is configured to cooperate with the cleaning brush 9. Thus, in conjunction with the residual water flow on the conveyor 7, the scraper 19 can scrape off some of the sand and other debris trapped on the cleaning brush 9, thereby achieving a certain cleaning effect.

[0025] In some embodiments, to facilitate the cleaning of impurities scraped off by the scraper 19, a discharge groove 20 is provided on the scraper 19. When impurities accumulate to a certain extent on the scraper 19, they can overflow from the discharge groove 20.

[0026] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A system for collecting and cleaning cuttings from geothermal wells, comprising a vibrating screen (1), a cleaning mechanism (2), a water tank (3), and a dryer (4), characterized in that, The vibrating screen (1) is provided with a mixing inlet (5), and the output end of the vibrating screen (1) is provided with a discharge plate (6). The cleaning mechanism (2) is equipped with a first conveyor (7) and a second conveyor (8). A cleaning brush (9) is installed on the first conveyor (7), and the discharge plate (6) abuts against the cleaning brush (9). Several push plates (10) are installed on the second conveyor (8). A rotary drive device (11) is installed on the cleaning mechanism (2). A first drive wheel (12) and a second drive wheel (13) are respectively installed on the first conveyor (7) and the second conveyor (8). (13) The diameter of transmission wheel one (12) is larger than that of transmission wheel two (13). The output end of the rotary drive device (11) is connected to transmission wheel one (12). Transmission wheel one (12) and transmission wheel two (13) are connected by transmission chain (14). Water tank (3) is installed on top of cleaning mechanism (2). Water tank (3) is set in conjunction with cleaning mechanism (2). Feed plate (15) is installed at the output end of dryer (4). Push plate (10) is set in conjunction with cleaning brush (9), discharge plate (6) and feed plate (15).

2. The system for collecting and cleaning cuttings from geothermal wells according to claim 1, characterized in that, Both the discharge plate (6) and the feed plate (15) should be inclined.

3. The system for collecting and cleaning cuttings from geothermal wells according to claim 1, characterized in that, The vibrating screen (1) is equipped with a mud discharge port (16).

4. The system for collecting and cleaning cuttings from geothermal wells according to claim 1, characterized in that, The cleaning mechanism (2) is equipped with several spray heads (17), all of which are connected to the water tank (3). A booster pump (18) is installed on the water tank (3).

5. The system for collecting and cleaning cuttings from geothermal wells according to claim 4, characterized in that, All the water spray heads (17) are set at an angle.

6. The system for collecting and cleaning cuttings from geothermal wells according to claim 1, characterized in that, The bottom of the discharge plate (6) is equipped with a scraper (19), which is configured in conjunction with the cleaning brush (9).

7. The system for collecting and cleaning cuttings from geothermal wells according to claim 6, characterized in that, The scraper (19) is provided with a discharge groove (20).

Images