Rock debris automatic sampling analysis system and method

Abstract

The invention discloses a rock debris automatic sample introduction analysis system and method, and belongs to the technical field of oil exploration, the rock debris automatic sample introduction analysis system comprises: a cleaning device for cleaning a slurry sample to obtain a cleaned sample; the drying device is connected with the cleaning device and is used for drying the cleaned sample to generate a dried sample; the grinding device is connected with the drying device and is used for grinding and screening the dried samples to obtain rock debris particles with qualified diameters; and the tabletting device is connected with the grinding device and is used for tabletting the rock debris particles with qualified diameters to generate rock debris tabletting samples. According to the invention, high-quality rock debris samples can be obtained; by matching with the movement of the elliptical sliding guide rail, the preparation work of the rock debris sample can be more efficiently completed.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum exploration, and in particular relates to a rock cuttings automatic sampling and analysis system and method. Background Art

[0002] In the field of oil exploration, cuttings geological analysis is an important basis for identifying formation lithology, determining formation positions, and discovering and evaluating oil and gas layers. The automatic cuttings sampling system meets the needs of rapid drilling, realizes the automatic collection and preparation of cuttings geological samples, and thus conducts oil and gas exploration work in a timely manner. It solves the industry problem of inaccurate manual collection of cuttings geological samples due to the increase in drilling speed, and provides accurate input samples for formation interpretation and evaluation.

[0003] At present, there is still no usable rock cuttings sampling system in domestic oil fields, and most areas still use manual operations to sample rock cuttings. As offshore oil and gas fields vigorously strengthen exploration and development work, the intensity of work has increased and the pace has become faster. Mud logging and sampling personnel have been overloaded for a long time, and the safety of staff has faced major challenges and tests. At the same time, since most of the links such as rock cuttings sampling and sample preparation are still manual operations, the work efficiency is not ideal, and the quality of rock cuttings samples is difficult to guarantee. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a rock cuttings automatic sampling and analysis system and method to solve the above problems existing in the prior art.

[0005] To achieve the above object, the present invention provides a rock cuttings automatic sampling and analysis system, comprising:

[0006] A cleaning device, used for cleaning the mud sample to obtain a cleaned sample;

[0007] A drying device, connected to the cleaning device, for drying the cleaned sample to generate a dried sample;

[0008] A grinding device, connected to the drying device, for grinding and screening the dried sample to obtain rock cuttings particles with a qualified diameter;

[0009] The tableting device is connected to the grinding device and is used to tablet the rock chip particles with a qualified diameter to generate rock chip tablet samples.

[0010] Preferably, the cleaning device comprises: a cleaning filter, a cleaning basin, a rotating assembly, a recovery bucket and a flushing pipe;

[0011] The flushing pipe is connected to the cleaning basin through a pipeline, the rotating assembly is arranged below the cleaning basin, the recovery bucket is arranged directly below the rotating assembly, and the cleaning filter is connected to the cleaning basin.

[0012] Preferably, the drying device comprises a rotating device, a funnel, a heating device, a drying cylinder, a filter and a supporting frame;

[0013] The rotating device is coaxially connected to the heating device, the funnel is connected to the rotating device, the filter is arranged at the lower end of the drying cylinder, the drying cylinder and the diaphragm pump are connected through a pipeline, and the support frame is connected to the ground and the drying barrel.

[0014] Preferably, the grinding device comprises a grinder housing, a discharge port, a grinder wall, a grinding disc, a rotary screen, a grinding gear, a grinding blade, a discharge port and a chip storage box;

[0015] The grinder housing is connected to the drying cylinder through a pipeline, the discharge port is arranged on the surface of the grinder housing, the grinder wall is vertically arranged on the surface of the grinding disc, the rotary screen is arranged on the upper end of the grinder housing, the grinding gear and the grinding blade are coaxially connected to the rotary screen, the discharge port is arranged on the top of the grinder housing, and the discharge port is connected to the chip storage box through a pipeline.

[0016] Preferably, a chip discharge port is provided at the top of one side of the chip storage box, and a material discharge port is provided at the bottom of the chip storage box.

[0017] Preferably, it also includes a rotary drive device, a transmission motor and a rotary screener;

[0018] The rotary drive device is coaxially connected to the grinding device, and the grinding disc rotates horizontally when the rotation is started;

[0019] The transmission motor is used to drive the grinding disc, the grinding gear and the grinding blade to rotate;

[0020] The grinding gear comprises two layers with different diameters;

[0021] The rotary screen is used for rebounding and repeatedly grinding large diameter rock cutting particles.

[0022] Preferably, it also includes an elliptical sliding guide rail, a sliding table and an electric control box;

[0023] The sliding platform is installed on the upper end of the elliptical sliding guide rail, the tablet pressing device is installed on the sliding platform, and the electric control box is connected to the circular sliding guide rail and the tablet pressing device respectively.

[0024] To achieve the above object, the present invention also provides a cuttings automatic sampling and analysis method, comprising:

[0025] Step 1: Pump the mud sample from the mud tank into the drying mechanism through a diaphragm pump;

[0026] Step 2: The rotary drive device drives the rotary device in the drying drum to rotate, and the heating device is started at the same time, and hot air flow is continuously generated in the drying drum, so that the rock cuttings solids and waste liquid are separated and move to the filter at the bottom;

[0027] Step 3: After the waste liquid is filtered by the filter, the rock cuttings solids enter the grinding device from the chip outlet inside the drying drum, and the waste liquid enters the waste liquid barrel through the drain port for recovery;

[0028] Step 4: The dried rock chips enter the grinding device and then the wall of the grinder. The transmission motor drives the grinding blade and the grinding gear of the grinding table to rotate. The rock chips move toward the edge of the grinder wall under the action of centrifugal force. The larger rock chips are first crushed by the grinding blade, then fall down and are crushed by the first layer of grinding gears, and then are crushed by the grinding gears with the largest diameter into rock chips of qualified diameter. Finally, the rock chips run out from the screening port at the bottom of the grinder wall and are driven upward to the rotary screener by the airflow generated by the wind turbine. The rotary screener rotates under the drive of the transmission motor. The rock chips with small diameters pass through the rotary screener and enter the chip storage box, while the rock chips with large diameters are rebounded and continue to be ground until they are crushed into rock chips of qualified diameter.

[0029] Step 5: The cuttings enter the cuttings storage box and enter the tableting mold from the discharge port to wait for tableting;

[0030] Step 6: After the rock cuttings particles enter the tableting mold, the elliptical sliding guide rail drives the sliding table to move to the bottom of the tableting device. Then the electrical control box controls the tableting device to push the tablets to complete the rock cutting tableting work. After obtaining the rock cuttings sample, the elliptical sliding guide rail drives the sliding table to the outside of the guide rail, waiting for the staff to collect the rock cuttings sample.

[0031] Compared with the prior art, the present invention has the following advantages and technical effects:

[0032] The present invention can quickly dry the rock cuttings by using the hot air flow generated by the heating device and the rotating device in the drying device, and then effectively realize the solid-liquid separation of the rock cuttings and the waste liquid through the filter, so that the subsequent grinding work can be carried out better; through the combination of the grinding blade and the grinding gear in the grinding device, the rock cuttings move to the edge of the grinder wall under the action of centrifugal force, the rock cuttings are squeezed and crushed more evenly and fully, and after further screening by the rotary screener, the rock cutting particles with larger diameters are rebounded and repeatedly ground, and the obtained rock cutting particles have a smaller diameter; the sliding table is controlled by the electric control box to move periodically on the elliptical sliding track, and the movement of the film pressing mechanism is coordinated to simultaneously complete the filling of the tablet pressing mold and the pressing of the tablet pressing device, and the rock cutting tablet pressing work can be completed more efficiently and systematically. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0034] Figure 1 A schematic structural diagram of an automatic cuttings sampling and analysis system according to an embodiment of the present invention;

[0035] Figure 2 It is a schematic structural diagram of a cleaning device according to an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of a recycling bin according to an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the external structure of a drying device according to an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the internal structure of a drying device according to an embodiment of the present invention;

[0039] Figure 6 is a cross-sectional schematic diagram of a drying device according to an embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of the structure of a waste liquid barrel according to an embodiment of the present invention;

[0041] Figure 8 A schematic diagram of the external structure of a grinding device according to an embodiment of the present invention;

[0042] Fig. 9 A schematic diagram of the internal structure of a grinding device according to an embodiment of the present invention;

[0043] Fig.10 is a cross-sectional schematic diagram of a grinding device according to an embodiment of the present invention;

[0044] Fig.11 A schematic diagram of the structure of a chip storage box according to an embodiment of the present invention;

[0045] Fig.12 It is a schematic diagram of the overall structure of a tablet pressing device according to an embodiment of the present invention;

[0046] Among them, 1. Mud tank; 2. Pipeline; 3. Mud sampling box; 4. Rotary drive device; 5. Support frame; 6. Drying device; 7. Grinding device; 8. Waste liquid barrel; 9. Transmission motor; 10. Chip storage box; 11. Tablet pressing mold; 12. Elliptical sliding track; 13. Sliding table; 14. Diaphragm pump; 15. Tablet pressing device; 16. Electric control box; 17. Drying cylinder shell; 18. Chip outlet; 19. Liquid discharge port; 20. Heating device; 21. Rotating device; 22. Filter; 23. , drying drum base; 24, waste liquid inlet; 25, grinder housing; 26, chip inlet; 27, first discharge port; 28, rotary screen; 29, grinding blade; 30, wind turbine; 31, grinding table; 32, chip discharge port; 33, second discharge port; 34, cleaning device; 35, recovery barrel; 36, flushing pipe; 37, rotating device; 38, cleaning basin; 39, cleaning filter; 40, drain outlet; 41, funnel; 42, grinding gear; 43, grinder wall; 44, screening port. DETAILED DESCRIPTION

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0049] Embodiment 1

[0050] like Figure 1-12 As shown, this embodiment provides a rock cuttings automatic sampling and analysis system, including:

[0051] It consists of a mud tank 1, a pipeline 2, a mud sampling box 3, a drying device 6, a grinding device 7, a waste liquid barrel 8, a chip storage box 10, an elliptical sliding guide rail, a tablet pressing device 15 and a cleaning device 34.

[0052] The mud tank 1 is connected to the mud sampling box 3 through a pipeline 2, and the diaphragm pump 14 is connected to the mud sampling box 3 and the drying device 6 through a pipe. The mud sample is pumped from the mud sampling box 3 into the cleaning device 34 by the diaphragm pump 14.

[0053] The cleaning device 34 is provided with a cleaning filter 39, a cleaning basin 38, a rotating assembly, a recovery bucket 35 and a flushing pipe 36. The flushing pipe 36 is connected to the cleaning basin 38 through a pipe 2. The rotating assembly is arranged below the cleaning basin 38. The recovery bucket 35 is arranged directly below the rotating assembly. The recovery bucket 35 also includes a drain outlet 40.

[0054] The drying device 6 is mainly composed of a rotating drive device 4, a funnel 41, a drying cylinder shell 17, a heating device 20, a rotating device 21, a filter 22, a chip outlet 18, a liquid discharge port 19, a filter 22 and a drying cylinder base 23; the heating device 20 is coaxially connected to the rotating device 21, and after starting the two devices, the mud sample entering the drying cylinder can be quickly dried; the filter 22 is arranged at the lower end of the drying cylinder, and after the mud sample is dried, the filter 22 will separate the rock cuttings solids and the waste liquid separated from the rock cuttings.

[0055] The waste liquid barrel 8 is connected to the liquid discharge port 19 through a pipe, and the waste liquid separated from the rock cuttings enters the waste liquid inlet 24 in the waste liquid barrel 8 from the liquid discharge port 19 .

[0056] The grinding device 7 is mainly composed of a transmission motor 9, a grinder housing 25, a chip inlet 26, a first discharge port 27, a grinding blade 29, a grinding gear 42, a grinder wall 43, a wind turbine 30, a rotary screener 28, a rotating device 37 and a grinding table 31; the chip inlet 26 is connected to the chip outlet 18 by a pipe, and the dried rock chips solid enter the chip inlet 26 through the pipeline 2; the grinding table 31 is arranged at the lower end of the grinder housing 25, and the rock chips will fall into the grinder wall 43 after entering the grinding device 7. After the transmission motor 9 is started, the grinding table 31 rotates in the horizontal direction, and the rock chips gradually move toward the edge of the grinder wall 43 under the action of centrifugal force; the grinding blade 29 and the grinding gear 42 are coaxially connected to the rotary screener 28. After the transmission motor 9 is started, the grinding blade 29 and the grinding gear 42 rotate in the horizontal direction. The rock chips with larger diameters first move to the grinding blade 29 and are crushed into rock chips particles with smaller diameters, and then fall to the grinding gear 42 to continue to be crushed until they are qualified. The crushed rock chips particles run out from the screening port 44 at the lower end of the grinder wall 43; the wind turbine 30 is arranged at the lower end of the grinding table 31, and the crushed rock chips particles enter the rotary screen 28 upward with the wind; the rotary screen 28 is arranged at the upper end inside the grinding device 7. After the transmission motor 9 is started, the rotary screen 28 rotates in the horizontal direction, and rock chips particles with small diameters can enter the rotary screen 28, while rock chips particles with too large diameters will be rebounded by the rotary screen 28 and re-ground until they are qualified; the first discharge port 27 is arranged at the top of the grinding device 7, connected by the pipeline 2, and the crushed rock chips particles enter the chip storage box 10 from the first discharge port 27.

[0057] The chip storage box 10 includes a second discharge port 33 and a chip discharge port 32; the second discharge port 33 is arranged at the bottom of the chip storage box 10, and the rock cuttings particles quickly sink to the bottom after entering the chip storage box 10, and enter the tableting mold 11 through the second discharge port 33 to prepare for tableting; the chip discharge port 32 is arranged on one side of the top of the chip storage box 10. When too much rock cuttings particles are stored, they will be discharged from the chip discharge port 32 and stored before waiting for sample preparation.

[0058] The tableting mold is arranged on the sliding table 13, and the rock chips enter the tableting mold 11 from the chip discharge port 32 to wait for tableting; the sliding table 13 is arranged on the elliptical sliding track 12. After the rock chips enter the tableting mold 11 and are ready for tableting, the elliptical sliding track 12 drives the sliding table 13 to move to the bottom of the tableting device 15; the electric control box 16 is connected with the tableting device 15 and the elliptical sliding track 12. After the sliding table 13 moves to the bottom of the tableting device 15, the electric control box 16 controls it to push the tableting to complete the sample preparation work. After the tableting is completed, the elliptical sliding track 12 is controlled to drive the sliding table 13 to move to the outside to wait for the staff to collect the rock chip samples.

[0059] Embodiment 2

[0060] This embodiment provides a rock cuttings automatic sampling and analysis system, comprising:

[0061] A cleaning device 34, used for cleaning the mud sample to obtain a cleaned sample;

[0062] A drying device 6, connected to the cleaning device 34, for drying the cleaned sample to generate a dried sample;

[0063] A grinding device 7, connected to the drying device 6, for grinding and screening the dried sample to obtain rock cuttings particles with a qualified diameter;

[0064] The tableting device 15 is connected to the grinding device 7 and is used to tablet the rock chip particles with a qualified diameter to generate rock chip tablet samples.

[0065] Furthermore, the cleaning device 34 includes: a cleaning filter 39, a cleaning basin 38, a rotating assembly, a recovery bucket 35 and a flushing pipe 36;

[0066] The flushing pipe 36 is connected to the cleaning basin 38 through the pipeline 2 , the rotating assembly is arranged below the cleaning basin 38 , the recovery bucket 35 is arranged directly below the rotating assembly, and the cleaning filter 39 is connected to the cleaning basin 38 .

[0067] Furthermore, the drying device 6 includes a rotating device 21, a funnel 41, a heating device 20, a drying cylinder, a filter 22 and a support frame 5;

[0068] The rotating device 21 is coaxially connected to the heating device 20, the funnel 41 is connected to the rotating device 21, the filter 22 is arranged at the lower end of the drying cylinder, the drying cylinder and the diaphragm pump 14 are connected through the pipeline 2, and the support frame 5 is connected to the ground and the drying barrel.

[0069] Further, the grinding device 7 includes a grinder housing 25, a discharge port, a grinder wall 43, a grinding disc, a rotary screen 28, a grinding gear 42, a grinding blade 29, a discharge port and a chip storage box 10;

[0070] The grinder housing 25 is connected to the drying cylinder through a pipe 2, the discharge port is arranged on the surface of the grinder housing 25, the grinder wall 43 is vertically arranged on the surface of the grinding disc, the rotary screener 28 is arranged at the upper end of the grinder housing 25, the grinding gear 42 and the grinding blade 29 are coaxially connected to the rotary screener 28, the discharge port is arranged at the top of the grinder housing 25, and the discharge port is connected to the chip storage box 10 through a pipe 2.

[0071] Furthermore, a chip discharge port 32 is provided at the top of one side of the chip storage box 10 , and a material discharge port is provided at the bottom of the chip storage box 10 .

[0072] Furthermore, it also includes a rotary drive device 4, a transmission motor 9 and a rotary screener 28;

[0073] The rotary drive device 4 is coaxially connected to the grinding device 7, and the grinding disc rotates horizontally when the rotation is started;

[0074] The transmission motor 9 is used to drive the grinding disc, the grinding gear 42 and the grinding blade 29 to rotate;

[0075] The grinding gear 42 includes two layers with different diameters;

[0076] The rotary screen 28 is used to rebound and repeatedly grind the rock cutting particles with large diameters.

[0077] Furthermore, it also includes an elliptical sliding guide rail, a sliding table 13 and an electric control box 16;

[0078] The sliding platform 13 is installed on the upper end of the elliptical sliding guide rail, the tablet pressing device 15 is installed on the sliding platform 13, and the electric control box 16 is connected to the circular sliding guide rail and the tablet pressing device 15 respectively.

[0079] Embodiment 3

[0080] This embodiment provides a cuttings automatic sampling and analysis method, comprising:

[0081] Step 1: The diaphragm pump 14 is used to pump the mud sample from the mud tank 1 into the cleaning basin 38. At the same time, the flushing pipe 36 introduces water from the outside into the cleaning basin 38 to wash the mud. After a period of flushing, the flushing is stopped, and the waste water flows downward from the cleaning filter 39 and enters the recovery bucket 35. After the waste water flows out, the rotating assembly is turned over, and the cleaned mud is poured into the funnel 41 to prepare for drying.

[0082] Step 2: After the mud enters the drying mechanism from the funnel 41, the rotary drive device 4 drives the rotating device 21 in the drying cylinder to rotate, and at the same time the heating device 20 is started, and hot air flow is continuously generated in the drying cylinder, so that the rock cuttings solids and waste liquid are separated and move to the filter 22 at the bottom;

[0083] Step 3: After the waste liquid is filtered by the filter 22, the rock cuttings solids enter the grinding device 7 from the chip outlet 18 inside the drying cylinder, and the waste liquid enters the waste liquid barrel 8 through the drain port 19 for recovery;

[0084] Step 4: The dried rock chips enter the grinding device 7 and fall on the grinding table 31. The transmission motor 9 drives the grinding table 31, the grinding blade 29 and the grinding gear 42 to rotate, and the grinding gear 42 is divided into two layers with different diameters. The rock chips move toward the edge of the grinder wall 43 under the action of centrifugal force. The larger rock chip particles are first crushed by the grinding blade 29, and then fall down and are crushed by the first layer of grinding gears 42, and then are crushed into rock chip particles with a qualified diameter by the second layer of grinding gears 42 with a larger diameter. Finally, the rock chip particles run out from the screening port 44 at the bottom of the grinder wall 43, and then the rock chip particles are driven upward by the airflow generated by the wind turbine 30 to the rotary screener 28. The rotary screener 28 rotates under the drive of the transmission motor 9, and the rock chip particles with small diameters pass through the rotary screener 28 and enter the chip storage box 10, while the rock chip particles with large diameters are rebounded and continue to be ground until they are crushed into rock chip particles with a qualified diameter.

[0085] Step 5: The rock cuttings enter the chip storage box 10 and enter the tableting mold 11 from the second discharge port 33 to wait for tableting. When the rock cuttings accumulate too quickly in the chip storage box 10, they will be discharged from the chip discharge port 32 and stored for backup.

[0086] Step 6: After the rock cuttings particles enter the tableting mold 11, the elliptical sliding guide rail drives the sliding table 13 to move to the bottom of the tableting device 15. Then the electrical control box 16 controls the tableting device 15 to push the tablets to complete the rock cutting tableting work. After obtaining the rock cuttings sample, the elliptical sliding guide rail drives the sliding table 13 to the outside of the guide rail, waiting for the staff to collect the rock cuttings sample.

[0087] The above are only preferred specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A rock cuttings automatic sampling and analysis system, characterized in that: include: A cleaning device, used for cleaning the mud sample to obtain a cleaned sample; A drying device, connected to the cleaning device, for drying the cleaned sample to generate a dried sample; A grinding device, connected to the drying device, for grinding and screening the dried sample to obtain rock cuttings particles with a qualified diameter; The tableting device is connected to the grinding device and is used to tablet the rock chip particles with a qualified diameter to generate rock chip tablet samples.

2. The automatic cuttings sampling and analysis system according to claim 1, characterized in that: The cleaning device comprises: a cleaning filter, a cleaning basin, a rotating assembly, a recovery bucket and a flushing pipe; The flushing pipe is connected to the cleaning basin through a pipeline, the rotating assembly is arranged below the cleaning basin, the recovery bucket is arranged directly below the rotating assembly, and the cleaning filter is connected to the cleaning basin.

3. The automatic cuttings sampling and analysis system according to claim 1, characterized in that: The drying device comprises a rotating device, a funnel, a heating device, a drying cylinder, a filter and a supporting frame; The rotating device is coaxially connected to the heating device, the funnel is connected to the rotating device, the filter is arranged at the lower end of the drying cylinder, the drying cylinder and the diaphragm pump are connected through a pipeline, and the support frame is connected to the ground and the drying barrel.

4. The automatic cuttings sampling and analysis system according to claim 3, characterized in that: The grinding device comprises a grinding machine housing, a discharge port, a grinder wall, a grinding disc, a rotary screen, a grinding gear, a grinding blade, a discharge port and a chip storage box; The grinder housing is connected to the drying cylinder through a pipeline, the discharge port is arranged on the surface of the grinder housing, the grinder wall is vertically arranged on the surface of the grinding disc, the rotary screen is arranged on the upper end of the grinder housing, the grinding gear and the grinding blade are coaxially connected to the rotary screen, the discharge port is arranged on the top of the grinder housing, and the discharge port is connected to the chip storage box through a pipeline.

5. The automatic cuttings sampling and analysis system according to claim 4, characterized in that: The top of one side of the chip storage box is provided with a chip discharge port, and the bottom of the chip storage box is provided with a material discharge port.

6. The automatic cuttings sampling and analysis system according to claim 4, characterized in that: It also includes a rotary drive device, a transmission motor and a rotary screener; The rotary drive device is coaxially connected to the grinding device, and the grinding disc rotates horizontally when the rotation is started; The transmission motor is used to drive the grinding disc, the grinding gear and the grinding blade to rotate; The grinding gear comprises two layers with different diameters; The rotary screen is used for rebounding and repeatedly grinding large diameter rock cutting particles.

7. The automatic cuttings sampling and analysis system according to claim 1, characterized in that: It also includes an oval sliding guide rail, a sliding table and an electric control box; The sliding platform is installed on the upper end of the elliptical sliding guide rail, the tablet pressing device is installed on the sliding platform, and the electric control box is connected to the circular sliding guide rail and the tablet pressing device respectively.

8. The method of the automatic cuttings sampling and analysis system according to any one of claims 1 to 7, characterized in that: The following steps are included Step 1: Pump the mud sample from the mud tank into the drying mechanism through a diaphragm pump; Step 2: The rotary drive device drives the rotary device in the drying drum to rotate, and the heating device is started at the same time, and hot air flow is continuously generated in the drying drum, so that the rock cuttings solids and waste liquid are separated and move to the filter at the bottom; Step 3: After the waste liquid is filtered by the filter, the rock cuttings solids enter the grinding device from the chip outlet inside the drying drum, and the waste liquid enters the waste liquid barrel through the drain port for recovery; Step 4: The dried rock chips enter the grinding device and then the wall of the grinder. The transmission motor drives the grinding blade and the grinding gear of the grinding table to rotate. The rock chips move toward the edge of the grinder wall under the action of centrifugal force. The larger rock chips are first crushed by the grinding blade, then fall down and are crushed by the first layer of grinding gears, and then are crushed by the grinding gears with the largest diameter into rock chips of qualified diameter. Finally, the rock chips run out from the screening port at the bottom of the grinder wall and are driven upward to the rotary screener by the airflow generated by the wind turbine. The rotary screener rotates under the drive of the transmission motor. The rock chips with small diameters pass through the rotary screener and enter the chip storage box, while the rock chips with large diameters are rebounded and continue to be ground until they are crushed into rock chips of qualified diameter. Step 5: The cuttings enter the cuttings storage box and enter the tableting mold from the discharge port to wait for tableting; Step 6: After the rock cuttings particles enter the tableting mold, the elliptical sliding guide rail drives the sliding table to move to the bottom of the tableting device. Then the electrical control box controls the tableting device to push the tablets to complete the rock cutting tableting work. After obtaining the rock cuttings sample, the elliptical sliding guide rail drives the sliding table to the outside of the guide rail, waiting for the staff to collect the rock cuttings sample.

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