Bucket-type rock sample device

Abstract

The utility model relates to the technical field of rock debris sampling, especially to a bucket type rock debris sampling device. The bucket type rock debris sampling device is arranged on a slurry tank for receiving rock debris slurry, and a mounting frame group for fixing the sampling device is arranged on the slurry tank. The sampling device comprises a shell and a conveying mechanism arranged in the shell. A plurality of groups of material taking mechanisms are arranged on the conveying mechanism at equal intervals. A discharge hopper for receiving samples is arranged on the shell. The bucket type rock debris sampling device provided by the utility model realizes the automation and continuous sampling function of rock debris sampling. The samples taken are more representative. The conveying mechanism is driven by a motor to automatically complete the whole process of rock debris digging, lifting and pouring, greatly reducing the labor intensity and avoiding sample confusion caused by human factors, and providing more reliable analysis basis for geological personnel.

Description

Technical Field

[0001] This utility model relates to the field of rock cuttings sampling technology, and in particular to a bucket-type rock cuttings sampling device. Background Technology

[0002] Drilling is a crucial step in oil exploration and development. Geologists need to analyze the rock cuttings returned from the bottom of the well to understand the underground geological structure, thereby guiding drilling operations.

[0003] Traditional cuttings sampling is primarily done manually. The process involves injecting drilling mud carrying cuttings from the bottom of the well into a mud tank via a mud pipeline, then transporting it to a vibrating screen for separation. Geologists manually collect the separated cuttings below the screen, clean them, and then observe and analyze them. However, with the increasing length of drilling cycles (often lasting tens of days to months) and the demand for high-frequency sampling under complex geological conditions (e.g., sampling every few meters drilled, with intervals as short as 1-2 minutes), this traditional manual sampling method has revealed numerous drawbacks. For example, the complex drilling environment and the long hours and high frequency of manual sampling not only consume enormous amounts of physical energy but also pose certain safety risks. Furthermore, manual operation makes it difficult to ensure the continuity and uniformity of sampling, easily missing cuttings from key strata, resulting in insufficient sample representativeness and affecting the accuracy of geological interpretation. Simultaneously, the probability of human error increases during high-frequency, long-duration operations, potentially leading to incorrect or confused sample labeling, which can severely impact subsequent geological analysis and exploration and development decisions.

[0004] Therefore, it is necessary to provide a new bucket-type rock cuttings sampling device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a bucket-type rock cuttings sampling device.

[0006] The present invention provides a bucket-type rock cuttings sampling device, wherein the sampling device is set on a mud tank for receiving rock cuttings mud, and samples the rock cuttings mud transported from the mud tank. The mud tank is equipped with a mounting frame assembly for fixing the sampling device. The sampling device includes an outer shell and a conveying mechanism installed inside the outer shell. Multiple sets of equidistantly distributed material collection mechanisms are installed on the conveying mechanism, and a discharge hopper for receiving the sample is installed on the outer shell. The material handling mechanism includes a hinged lug bracket, on which an angle-adjustable material handling hopper is installed. The material handling hopper has a screen-like structure, and multiple insert screws are embedded in the bottom of the hinged lug bracket. The material handling hopper extracts rock fragments from the mud tank, and the material handling hopper is lifted by the conveying mechanism so that the sample is poured into the discharge hopper. The bottom of the discharge hopper is equipped with a water inlet pipe and a discharge pipe on both sides. The water inlet pipe is connected to an external water supply line, and the discharge pipe is connected to an external rock cuttings sampling line.

[0007] Preferably, both the hinge bracket and the hopper have mounting holes on their side walls, and the hopper is fixedly installed in the hinge bracket by bolts.

[0008] Preferably, the conveying mechanism includes a driving sprocket, a driven sprocket, and a chain. The driving sprocket and the driven sprocket are rotatably mounted inside the housing, and a chain is installed between the driving sprocket and the driven sprocket for meshing connection. A double-sided single-hole bent plate is installed on a single link of the chain. A motor for driving the rotation of the driving sprocket is fixedly mounted on the housing via a frame.

[0009] Preferably, the insertion screw on the hinge lug bracket is inserted into the double-sided single-hole bent plate on the chain link and fixedly connected by a nut.

[0010] Preferably, a mounting plate is fixedly installed inside the outer casing, and a chain guide rail is mounted on the mounting plate.

[0011] Preferably, a rotatably connected roller brush is installed inside the housing, and the roller brush is located above the discharge hopper.

[0012] Preferably, the mounting frame assembly includes a bracket, which is fixedly mounted on the mud tank. A hinge is fixedly mounted on the bracket, and another page of the hinge is fixedly mounted on the outer shell. The bracket is also equipped with a rotatably connected electric telescopic rod, and the output end of the electric telescopic rod is equipped with a rotatably connected mounting seat, which is fixedly mounted on the outer shell below the hinge.

[0013] Preferably, a mud pipeline is installed at one end of the mud tank, through which mud and rock cuttings returning from the bottom of the well to the surface are injected into the mud tank.

[0014] Compared with related technologies, the bucket-type rock cuttings sampling device provided by this utility model has the following beneficial effects: This invention automates and enables continuous sampling of rock cuttings, resulting in more representative samples. The filtered mud and water from the rock cuttings are returned to the mud tank, eliminating the need for additional mud and water treatment. A motor-driven conveying mechanism automatically completes the entire process of digging, lifting, and dumping the rock cuttings, achieving automation and continuity in the sampling operation. This significantly reduces manual labor intensity and avoids sample contamination caused by human error. Multiple equidistantly distributed hoppers continuously and uniformly extract rock cuttings from the mud tank, ensuring sample continuity and representativeness, and providing geologists with more reliable analytical data. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the installation structure of this utility model on a mud tank; Figure 2 for Figure 1 The diagram shows the structural connection between the outer casing and the mounting bracket assembly. Figure 3 A schematic diagram of the bucket-type rock cuttings sampling device provided by this utility model; Figure 4 for Figure 1 The diagram shows the distribution structure of the material handling mechanism on the conveying mechanism. Figure 5 for Figure 4 A partial structural schematic diagram of the conveying mechanism shown; Figure 6 for Figure 4 The diagram shows the structure of the material handling mechanism. Figure 7 for Figure 4 The diagram shows the structure of the discharge hopper; Figure 8 for Figure 2 The diagram shows the structure of the mounting bracket assembly.

[0016] Numbered in the diagram: 1. Outer shell; 2. Conveying mechanism; 21. Drive sprocket; 22. Driven sprocket; 23. Chain; 24. Mounting plate; 25. Chain guide rail; 3. Material handling mechanism; 31. Hinge lug bracket; 32. Bolt; 33. Material handling hopper; 34. Inserting screw; 4. Roller brush; 5. Discharge hopper; 51. Water inlet pipe; 52. Discharge pipe; 6. Motor; 700, mud tank; 800. Mounting frame assembly; 801. Bracket; 802. Hinge; 803. Electric telescopic rod; 804. Mounting base; 900, mud pipeline. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0019] Please see Figures 1 to 8 The present invention provides a bucket-type rock cuttings sampling device, which includes a shell 1, a conveying mechanism 2, a material taking mechanism 3, and a discharge bucket 5.

[0020] In the embodiments of this utility model, please refer to Figure 1The sampling device is installed on the mud tank 700, which is used to receive rock cuttings and mud. It samples the rock cuttings and mud transported from the mud tank 700. The mud tank 700 is equipped with a mounting frame 800 for fixing the sampling device. A mud pipeline 900 is installed at one end of the mud tank 700. The mud and rock cuttings returning from the bottom of the well to the surface are injected into the mud tank 700 through the mud pipeline 900.

[0021] For specific implementation details, please refer to [link / reference]. Figure 1 and Figure 8 The mounting frame assembly 800 includes a bracket 801, which is fixedly mounted on the mud tank 700. A hinge 802 is fixedly mounted on the bracket 801, and another leaf of the hinge 802 is fixedly mounted on the outer shell 1. An electric telescopic rod 803 is also mounted on the bracket 801 and is rotatably connected. A mounting seat 804 is rotatably connected to the output end of the electric telescopic rod 803 and is fixedly mounted on the outer shell 1 below the hinge 802. The outer shell 1 of the sampling device is mounted on the mud tank 700 through the mounting frame assembly 800. The hinge 802 and the electric telescopic rod 803 are arranged in a front-to-back and up-and-down layout on the bracket 801. Therefore, the outer shell 1 is installed at an angle on the mud tank 700, keeping the lower half of the conveying mechanism 2 and the material taking mechanism 3 inside the outer shell 1 in the mud tank 700 so that the material taking mechanism 3 can take samples.

[0022] Furthermore, the electric telescopic rod 803 is activated to adjust the inclination of the outer casing 1, so as to sample rock debris at different depths on the vibrating screen. In this solution, an adjustable lead screw or hydraulic cylinder can also be used to replace the electric telescopic rod 803, which can be selected by the technicians according to their needs.

[0023] In the embodiments of this utility model, please refer to Figure 3 , Figure 4 and Figure 5 The outer casing 1 houses a conveying mechanism 2, which includes a drive sprocket 21, a driven sprocket 22, and a chain 23. The drive sprocket 21 and the driven sprocket 22 are rotatably mounted inside the outer casing 1, and a chain 23 is installed between the drive sprocket 21 and the driven sprocket 22 for meshing connection. Each link of the chain 23 is equipped with a double-sided single-hole bent plate. A motor 6 for driving the drive sprocket 21 to rotate is fixedly mounted on the outer casing 1 via a frame. The conveying mechanism 2 is equipped with multiple sets of equidistantly distributed material picking mechanisms 3. Turning on the motor 6 will drive the drive sprocket 21 to rotate, thus the chain 23 on the drive sprocket 21 and the driven sprocket 22 can drive the material picking mechanism 3 to run.

[0024] In this embodiment, to prevent the motor 6 from being contaminated by mud and rock debris, a protective cover is added to the outer casing 1 to protect the motor 6.

[0025] Furthermore, a mounting plate 24 is fixedly installed inside the outer casing 1, and a chain guide rail 25 is installed on the mounting plate 24. The chain guide rail 25 improves the stability of the chain 23 during transmission.

[0026] For specific details, please refer to the following: Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 7 The material handling mechanism 3 includes a hinged lug bracket 31, on which an angle-adjustable material handling hopper 33 is installed. Multiple insertion screws 34 are embedded in the bottom of the hinged lug bracket 31. The insertion screws 34 on the hinged lug bracket 31 are inserted into the double-sided single-hole bent plates on the chain link and fixedly connected by nuts. The outer shell 1 is equipped with a discharge hopper 5 for receiving samples. The inlet of the discharge hopper 5 is directly opposite the upper end of the conveying mechanism 2. A water inlet pipe 51 and a discharge pipe 52 are respectively installed on both sides of the bottom of the discharge hopper 5. The water inlet pipe 51 is connected to an external water supply line, and the discharge pipe 52 is connected to an external rock cuttings sampling line. The rock cuttings in the mud tank 700 are extracted by the material handling hopper 33 and the material handling hopper 33 is lifted by the conveying mechanism 2 so that the sample is poured into the discharge hopper 5.

[0027] Turning on motor 6 enables chain 23 to drive the material handling mechanism 3. As the material handling hopper 33 is conveyed upwards from the bottom chain 23, rock fragments are gradually collected within it because the bottom hopper 33 is in the mud. After the hopper 33 leaves the mud surface, because it is screen-like, larger rock fragments remain in the hopper 33 as it continues to convey upwards, while the mud is filtered out through the screen and falls into the mud tank 700. When the hopper 33 is conveyed to the outlet... After the material hopper 5 is directly above, the material hopper 33 continues to be transported under the drive of the double-sided single-hole curved plates on the chain link. The material hopper 33 will be transported from the bottom to the top, and the rock cuttings in the material hopper 33 will be thrown out and fall into the discharge hopper 5. The rock cuttings that fall into the discharge hopper 5 will be transported to the discharge pipe 52 by the water in the water inlet pipe 51, and then transported to the designated position along the external rock cuttings sampling pipeline. Then, the material hopper 33 will continue to be transported to the bottom of the conveying mechanism 2 under the drive of the double-sided single-hole curved plates on the chain link to start the next cycle of rock cuttings sampling. Therefore, the system achieves automated and continuous sampling of rock cuttings, resulting in more representative samples. The filtered mud and water from the rock cuttings are returned to the mud tank 700 without additional mud and water treatment. The conveying mechanism 2, driven by the motor 6, automatically completes the entire process of digging, lifting, and dumping rock cuttings, thus automating and facilitating the sampling operation. This greatly reduces the intensity of manual labor and avoids sample confusion caused by human factors. The multiple equidistantly distributed sampling hoppers 33 can continuously and uniformly extract rock cuttings from the mud tank 700, ensuring the continuity and representativeness of the samples and providing geologists with more reliable analytical data.

[0028] It should be noted that: multiple mounting holes are provided on both sides of the hinge bracket 31, so that the position of the hopper 33 on the hinge bracket 31 can be adjusted. At the same time, a certain gap is maintained between the inner bottom surface of the hinge bracket 31 and the outer bottom surface of the hopper 33. Thus, the angle of the hopper 33 can be deflected by loosening the bolt 32. After the angle is adjusted, the bolt 32 can be tightened again. In addition, the feeding hopper 33 adopts a screen-like structure, which can automatically filter out mud during the lifting process and achieve preliminary solid-liquid separation. Meanwhile, the discharge hopper 5 integrates a water inlet pipe 51, which can wash the collected rock cuttings online, simplifying the subsequent sample processing procedure.

[0029] Optionally, a rotatably connected roller brush 4 is installed inside the housing 1, and the roller brush 4 is located above the discharge hopper 5. When the hopper 33 rotates and is transferred to the position of the roller brush 4, the roller brush 4 cleans the rock chips attached to the hopper 33 and the cleaned rock chips fall into the discharge hopper 5, reducing the residue of rock chips in the hopper 33. Furthermore, a motor for driving the roller brush 4 to rotate can be installed on the housing 1, so that the roller brush 4 rotates actively. The roller brush 4 can be made of a special material that is more wear-resistant and less prone to adhesion (such as a fluoropolymer coating) to make the bristles.

[0030] Optionally, a steel ball can be suspended on the outer shell 1. When the hopper 33 is transported to the top of the outer shell 1 and flipped, the hopper 33 hits the suspended steel ball, thus vibrating the hopper 33. This, together with the roller brush 4, makes the rock debris in the hopper 33 fall more comprehensively.

[0031] In this embodiment, the hinge lug bracket 31 is inserted into the double-sided single-hole curved plate on the corresponding chain link by inserting the screw 34, and then fixed with a nut. Therefore, when the hopper 33 is damaged, it can be replaced individually, which is convenient and simple.

[0032] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A bucket-type rock cuttings sampling device, wherein the sampling device is installed on a mud tank (700) for receiving rock cuttings slurry, and for sampling the rock cuttings slurry transported from the mud tank (700), and a mounting frame assembly (800) for fixing the sampling device is provided on the mud tank (700), characterized in that, The sampling device includes a housing (1) and a conveying mechanism (2) installed inside the housing (1). Multiple sets of equally spaced material taking mechanisms (3) are installed on the conveying mechanism (2), and a discharge hopper (5) for receiving samples is installed on the housing (1). The material handling mechanism (3) includes a hinged lug bracket (31), on which an angle-adjustable material handling hopper (33) is installed. The material handling hopper (33) has a screen-like structure. Multiple insert screws (34) are embedded at the bottom of the hinged lug bracket (31). The material handling hopper (33) extracts rock fragments from the mud tank (700) and the material handling hopper (33) is lifted by the conveying mechanism (2) so that the sample is poured into the discharge hopper (5). The bottom of the discharge hopper (5) is equipped with a water inlet pipe (51) and a discharge pipe (52) on both sides respectively. The water inlet pipe (51) is connected to the external water supply line, and the discharge pipe (52) is connected to the external rock cuttings sampling line.

2. The bucket-type rock cuttings sampling device according to claim 1, characterized in that, The hinge bracket (31) and the hopper (33) are provided with mounting holes on both sides. The hopper (33) is fixedly installed in the hinge bracket (31) by bolts (32).

3. The bucket-type rock cuttings sampling device according to claim 1, characterized in that, The conveying mechanism (2) includes a drive sprocket (21), a driven sprocket (22), and a chain (23). The drive sprocket (21) and the driven sprocket (22) are rotatably mounted inside the housing (1), and a chain (23) is installed between the drive sprocket (21) and the driven sprocket (22). A double-sided single-hole bent plate is installed on a single link of the chain (23). A motor (6) for driving the drive sprocket (21) to rotate is fixedly mounted on the housing (1) by a frame.

4. The bucket-type rock cuttings sampling device according to claim 3, characterized in that, The insertion screw (34) on the hinge lug bracket (31) is inserted into the double-sided single-hole bent plate on the chain link and fixedly connected by a nut.

5. The bucket-type rock cuttings sampling device according to claim 3, characterized in that, An installation plate (24) is fixedly installed inside the outer shell (1), and a chain guide rail (25) is installed on the installation plate (24).

6. The bucket-type rock cuttings sampling device according to claim 1, characterized in that, The outer casing (1) is equipped with a rotating brush (4), and the brush (4) is located above the discharge hopper (5).

7. The bucket-type rock cuttings sampling device according to claim 1, characterized in that, The mounting bracket assembly (800) includes a bracket (801), which is fixedly mounted on the mud tank (700). A hinge (802) is fixedly mounted on the bracket (801). Another page of the hinge (802) is fixedly mounted on the outer shell (1). An electric telescopic rod (803) with a rotatable connection is also mounted on the bracket (801). A mounting seat (804) with a rotatable connection is mounted on the output end of the electric telescopic rod (803). The mounting seat (804) is fixedly mounted on the outer shell (1) below the hinge (802).

8. The bucket-type rock cuttings sampling device according to claim 1, characterized in that, A mud pipeline (900) is installed at one end of the mud tank (700), through which mud and rock cuttings returning from the bottom of the well to the surface are injected into the mud tank (700).

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