An automatic rock porosity measurement system and method

Abstract

This paper relates to the field of porosity measurement and provides an automatic rock porosity measurement system and method. The system comprises a feeding device, a weighing device, a lifting and immersion device, a gripping device, a vacuum saturation and pressurization device, a wiping device, and a control device. The feeding device includes a lifting and rotating assembly and a distributing shelf mounted on the assembly. It can automatically measure the dried weight, buoyant weight, and wet weight of multiple core samples, and then calculate the porosity of each core sample based on these measurements. The entire process reduces human interference, enabling streamlined, standardized, and automated testing, improving accuracy, efficiency, and intelligence. It solves the problem of existing core sample porosity testing processes being significantly affected by human factors and lacking unified control standards.

Description

Technical Field

[0001] This article relates to the field of porosity measurement, and in particular to an automatic system and method for measuring rock porosity. Background Technology

[0002] Reservoir porosity refers to the proportion of void volume in the total volume of the reservoir rock. This parameter is the basis for understanding reservoir storage performance, identifying major oil and gas reservoirs, determining effective reservoir thickness, calculating oil and gas reserves, and analyzing the production status of oil and gas fields. It is the most critical rock physical property parameter for oil and gas exploration and development.

[0003] Rock porosity experimental analysis is a unique technique for determining the size of rock porosity. With the continuous warming of oil and gas exploration and development in the Sichuan Basin, various exploration and development efforts urgently need a large amount of rock porosity data to support them.

[0004] In existing technologies, the liquid saturation method is the most commonly used method for determining rock porosity. This method can accurately measure the total volume and pore volume of rocks, and is suitable for analyzing samples of different shapes, sizes, and lithological characteristics, especially for testing nanoscale rock pores. However, in existing technologies, the entire process of measuring porosity using the liquid saturation method is performed manually, which leads to many problems such as numerous manual steps, low testing efficiency, individual and density errors in experimental results, improper storage of raw experimental data, and untimely monitoring of experimental environment safety. These issues affect the standardization and timeliness of rock porosity test results, making it impossible to meet the current pace of oil and gas exploration and development, and also resulting in a waste of human resources. Summary of the Invention

[0005] In existing technologies, rock porosity is usually determined by liquid saturation. This method relies on manual operation and suffers from low efficiency and poor accuracy.

[0006] To address the aforementioned technical issues, this paper provides an automatic rock porosity measurement system, comprising: a feeding device, a weighing device, a lifting and immersion device, a gripping device, a vacuum saturation pressurization device, a wiping device, and a control device.

[0007] The feeding device includes a lifting and rotating component and a distributing shelf set on the lifting and rotating component. The distributing shelf includes multiple layers of loading platforms for placing core samples. The lifting and rotating component is used to move the core samples up and down.

[0008] The weighing device is used to weigh the core samples placed on it;

[0009] The lifting immersion device is fixed below the weighing device and connected to the liquid injection device, and is used to immerse or leach the core sample in the weighing device into or out of the liquid in the lifting immersion device.

[0010] The gripping device is connected to the control device and is used to grip the core sample and move it between the weighing device, the vacuum saturation pressurization device, the wiping device and the feeding device under the control of the control device.

[0011] The vacuum saturation pressurization device is used to vacuum and pressurize the core sample, and the wiping device is used to wipe the liquid off the surface of the core sample.

[0012] The control device is electrically connected to the lifting and rotating assembly, weighing device, lifting and immersion device, gripping device, and wiping device. It is used to control the operation of the lifting and rotating assembly, lifting and immersion device, gripping device, and wiping device. The weighing device measures the dry weight, buoyant weight, and wet weight of the core sample, and calculates the rock porosity based on the dry weight, buoyant weight, and wet weight of the core sample.

[0013] As a further embodiment of this article, it also includes: a liquid injection device, connected to the lifting immersion device, for providing liquid to the lifting immersion device.

[0014] As a further embodiment of this article, it also includes: a shell and an immersion device;

[0015] The shell includes a first region, a second region, a third region, and a fourth region. The first region and the second region are located in the first layer, and the third region and the fourth region are located in the second layer.

[0016] Weighing device, lifting immersion device, grabbing device, and wiping device are set in the first area, feeding device is set in the second area, liquid injection device is set in the third area, vacuum saturation pressurization device and soaking device are set in the fourth area, and core samples on the distribution shelf can be immersed in the soaking device and connected to the vacuum saturation pressurization device.

[0017] A partition is provided between the first area and the third area, and between the first area and the second area, and the partition between the first area and the second area has a through hole for the gripping device to pass through.

[0018] In a further embodiment of this article, the lifting and rotating assembly includes: a lifting assembly, a rotating assembly, and a hoisting assembly;

[0019] The lifting assembly is set vertically, the rotating assembly is set on the lifting assembly, the hoisting assembly is set on the rotating assembly, and the hoisting assembly is fixed with a material distribution shelf;

[0020] The lifting assembly and the rotating assembly are electrically connected to a control device. The lifting assembly moves up and down under the control of the control device, and the rotating assembly moves around under the control of the control device, thereby realizing the lifting and rotating movement of the material distribution shelf.

[0021] In a further embodiment of this article, the lifting assembly includes: a rotating connector, a first connector, a compression spring, and a limiting block;

[0022] The upper end of the rotary connector is disposed on the rotary assembly, the lower end of the rotary connector has an opening groove, the first connector is disposed on both sides of the opening groove, and the compression spring is disposed between the first connectors;

[0023] The limiting block is located below the compression spring and is set on the rotating connector. The limiting block has limiting grooves on both sides to constrain the first connector.

[0024] In a further embodiment of this article, the lifting assembly further includes: a guide post disposed between the first connecting members, and a compression spring sleeved on the guide post.

[0025] As a further embodiment of this article, the material distribution shelf includes: a shaft, a handle plate, and multiple loading platforms;

[0026] A handle plate is fixed to the upper end of the shaft. The handle plate has a second connector for connecting to the first connector in the lifting assembly.

[0027] The stages are evenly distributed on the shaft and are used to place core samples.

[0028] In a further embodiment of this article, the stage is provided with a plurality of circularly arranged limiting grooves and sliding notches identical to the limiting grooves.

[0029] As a further embodiment of this article, the weighing device includes: a balance, a weighing base, and a core sample placement rack;

[0030] The weighing stand is equipped with a balance on the upper side, the weighing stand has a cavity inside, the side of the weighing stand has a window for the gripping device to extend into, and the bottom side of the weighing stand has an opening for installing a lifting and immersion device.

[0031] One end of the placement rack is located on the upper side of the cavity, and the placement rack is used to place core samples.

[0032] As a further embodiment of this article, the lifting immersion device includes: a buoyancy tank and a lifting assembly;

[0033] The buoyancy tank is fixed on the lifting assembly and connected to the liquid injection device. The lifting assembly is electrically connected to the control device. Under the control of the control device, the lifting assembly drives the buoyancy tank to move up and down, thereby immersing the core sample on the weighing device into the liquid leached from the buoyancy tank.

[0034] In a further embodiment of this article, a wiping transfer station is also provided on the housing, which is located in the first area and on one side of the wiping device;

[0035] The gripping device includes: a first gripping device and a second gripping device;

[0036] The first gripping device is located on one side of the weighing device and is used to grip the core sample and move it between the feeding device, the weighing device, and the wiping transfer station.

[0037] The second gripping device is located on one side of the wiping transfer station and is used to grip the core sample and move it between the wiping transfer station and the wiping device.

[0038] As a further embodiment of this article, the first gripping device includes: a three-position assembly, a first guide rod assembly, a swing assembly, and a first gripper for holding the core sample;

[0039] The first guide rod assembly is mounted on the three-position assembly, and the first gripper is mounted on the first guide rod assembly via a swing assembly. The three-position assembly and the first guide rod assembly work together to control the first gripper to move between the feeding device, the weighing device, and the wiping transfer station.

[0040] The swing assembly is used to control the rotation of the first gripper.

[0041] In a further embodiment of this article, the second gripping device includes: a gripping rodless assembly, a second guide rod assembly, and a second gripper;

[0042] The gripping rodless assembly is fixed above the wiping transfer station. The second gripper is fixed between the gripping rodless assembly and the wiping transfer station via the second guide rod assembly. The gripping rodless assembly and the second guide rod assembly work together to control the second gripper to reciprocate between the wiping transfer station and the wiping device.

[0043] As a further embodiment of this article, the wiping device includes: a rodless wiping cylinder, a guide rod wiping cylinder, a double-headed cylinder, a clamping arm, two end-face wiping sponges, a support sponge for receiving the core sample, and a surface wiping sponge;

[0044] The rodless wiping cylinder is fixed to one side of the double-headed cylinder;

[0045] The wiping guide rod cylinder is slidably fixed to the wiping rodless cylinder via a bracket;

[0046] The double-headed cylinder is fixed on one side of the wiping and transfer station;

[0047] The end-face wiping sponge is symmetrically fixed to both ends of the double-headed cylinder by clamping arms;

[0048] The surface wiping sponge is fixed above the supporting sponge by the wiping guide rod cylinder;

[0049] The supporting sponge is fixed between the wiping sponges on the end face;

[0050] The rodless wiping cylinder and the wiping guide rod cylinder work together to control the surface wiping sponge to wipe the surface of the core sample on the support sponge. The double-headed cylinder controls the end face wiping sponge to wipe the end face of the core sample on the support sponge through the clamping arm.

[0051] As a further embodiment of this article, it also includes: a liquid concentration detector and an alarm device;

[0052] A liquid concentration detector is installed in the liquid injection device and connected to the control device. It is used to detect the liquid concentration in the liquid injection device and send the detected liquid concentration to the control device.

[0053] The control device is connected to the alarm equipment and is also used to determine whether the liquid concentration meets the preset conditions. If it does not meet the conditions, the alarm equipment will be activated.

[0054] As a further embodiment of this article, it also includes: a core sample detachment detector, which is set on the material distribution shelf and connected to the control device, for detecting whether the core sample on the material distribution shelf has detached; if so, a detachment signal is sent to the control device.

[0055] The control device terminates operation based on the detachment signal.

[0056] As a further embodiment of this article, it also includes: an image acquisition device, which is disposed on the weighing device and connected to the control device, for acquiring images of the core sample on the weighing device;

[0057] The control device is also used to identify images of core samples acquired by the image acquisition equipment, determine the lithology of the core samples, determine the drying procedure based on the lithology of the core samples, and control the wiping device to wipe the core samples according to the determined drying procedure.

[0058] The second aspect of this document provides an automatic method for measuring rock porosity, applicable to the automatic rock porosity measurement system described in any of the foregoing embodiments, comprising:

[0059] S1, Place the dried core sample into the feeding device;

[0060] S2, control the lifting and rotating components to lift and rotate so that the core samples in the material distribution shelf are aligned with the grabbing device in sequence;

[0061] S3, control the grabbing device to grab the core sample from the material distribution shelf, send the grabbed core sample to the weighing device, and obtain the dried weight data of the core sample measured by the weighing device.

[0062] S4, control the gripping device to transfer the core sample in the weighing device to the gripping device, repeat the above steps S2 to S4 until all core samples in the distribution shelf have been measured with dried weight data.

[0063] S5 controls the lifting and rotating assembly to move up and down so that the core sample in the material distribution shelf is placed in the vacuum saturation pressurization device for saturation pressurization.

[0064] S6 controls the lifting and rotating assembly to move up and down so that the core samples in the material distribution shelf are aligned with the grabbing device in sequence.

[0065] S7, control the grabbing device to grab the core sample from the material distribution shelf, transfer the core sample from the residential area to the weighing device, and control the lifting immersion device to move upward so that the core sample is immersed in the saturated liquid, obtain the buoyancy data of the core sample measured by the weighing device, and control the lifting immersion device to reset.

[0066] S8, control the gripping device to transfer the core sample from the weighing device to the wiping device;

[0067] S9, control the wiping device to wipe the surface of the core sample. After wiping, control the gripping device to transfer the core sample on the wiping device to the weighing device and obtain the wet weight data of the core sample measured by the weighing device.

[0068] S10, control the gripping device to transfer the core sample in the weighing device to the material distribution shelf, and repeat steps S6 to S10.

[0069] S11. Calculate the porosity of the core sample based on its dried weight, buoyant weight, and wet weight data.

[0070] In a further embodiment of this article, step S5 is followed by:

[0071] Control the movement of the lifting and rotating components to place the core samples on the material distribution shelf into the soaking device.

[0072] A third aspect of this document provides a computer device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the methods described in any of the foregoing embodiments.

[0073] A fourth aspect of this document provides a computer storage medium having a computer program stored thereon, which, when executed by a processor of a computer device, implements the method described in any of the foregoing embodiments.

[0074] The automatic rock porosity measurement system and method presented in this paper are configured to include a feeding device, a weighing device, a lifting and immersion device, a gripping device, a vacuum saturation and pressurization device, a wiping device, and a control device. The feeding device includes a lifting and rotating component and a distributing shelf mounted on the lifting and rotating component. The distributing shelf includes multiple layers of platforms, which can automatically measure the dry weight, buoyant weight, and wet weight of multiple rock core samples. Then, the porosity of each rock core sample is calculated based on the automatically measured dry weight, buoyant weight, and wet weight. The entire process reduces human interference, realizes the process of streamlining, standardizing, and automating the testing process, improves the testing accuracy, testing efficiency, and intelligence level, and solves the problem that the existing rock core sample porosity testing process is greatly affected by human factors and lacks a unified control standard.

[0075] To make the above and other objects, features and advantages of this document more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0076] To more clearly illustrate the technical solutions in the embodiments or prior art described herein, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this article. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0077] Figure 1 The electrical connection diagram of the automatic rock porosity measurement system of the embodiment in this paper is shown;

[0078] Figure 2 A side view of the automatic rock porosity measurement system of the embodiment in this paper is shown;

[0079] Figure 3 A top view of the automatic rock porosity measurement system of the embodiment in this paper is shown;

[0080] Figure 4 A front view of the feeding device in the embodiment of this article is shown;

[0081] Figure 5 It shows Figure 4 A schematic diagram of the left-side view structure;

[0082] Figure 6 A schematic diagram of the planar structure of the suspension assembly in the embodiment of this article is shown;

[0083] Figure 7 A cross-sectional structural schematic diagram of the suspension assembly in the embodiments of this article is shown;

[0084] Figure 8This document shows a schematic diagram of the material distribution shelf in the embodiment of this paper;

[0085] Figure 9 for Figure 8 A top-view structural diagram;

[0086] Figure 10 A schematic diagram of the stage in the embodiment of this article is shown;

[0087] Figure 11 A front view of the weighing apparatus of the embodiment described herein is shown;

[0088] Figure 12 It shows Figure 11 A schematic diagram of the right-side view structure;

[0089] Figure 13 This shows a schematic diagram of the front view structure of the first grasping device in the embodiment of this paper;

[0090] Figure 14 It shows Figure 13 A top-view structural diagram;

[0091] Figure 15 This shows a schematic diagram of the front view structure of the second gripping device in the embodiments of this article;

[0092] Figure 16 It shows Figure 15 A top-view structural diagram;

[0093] Figure 17 A front view schematic diagram of the wiping device according to the embodiments of this article is shown;

[0094] Figure 18 It shows Figure 17 A top-view structural diagram;

[0095] Figure 19 A flowchart of an automatic rock porosity measurement method according to an embodiment of this paper is shown;

[0096] Figure 20 Another flowchart of the automatic rock porosity measurement method described in this embodiment is shown;

[0097] Figure 21 A structural diagram of the automatic rock porosity measurement and control device according to an embodiment of this paper is shown;

[0098] Figure 22 A structural diagram of the computer device described in this embodiment is shown.

[0099] Explanation of symbols in the attached drawings:

[0100] 1. Shell;

[0101] 1.1, First Region;

[0102] 1.2, Second Region;

[0103] 1.3, Third Region;

[0104] 1.4, Fourth Region;

[0105] 2. Feeding device;

[0106] 21. Lifting and rotating assembly;

[0107] 211. Lifting assembly;

[0108] 212. Rotating assembly;

[0109] 213. Lifting assembly;

[0110] 2131. Rotary connector;

[0111] 2132. First connecting component;

[0112] 2133. Compression spring;

[0113] 2134. Limit block;

[0114] 2135. Opening groove;

[0115] 2136. Guide column;

[0116] 22. Material distribution rack

[0117] 221. Shaft;

[0118] 222. Handle board;

[0119] 223. Stage;

[0120] 224. Limiting groove;

[0121] 225. Sliding notch;

[0122] 3. Weighing device;

[0123] 31. Balance scale;

[0124] 32. Weighing stand;

[0125] 33. Hanging rod;

[0126] 34. Hanging basket;

[0127] 4. Lifting and immersion device;

[0128] 41. Buoyancy tank;

[0129] 42. Lifting assembly;

[0130] 5. Gripping device;

[0131] 51. First gripping device;

[0132] 511. Three-position component;

[0133] 512. First guide rod assembly;

[0134] 513. Swinging component;

[0135] 514. The first priority;

[0136] 52. Second gripping device;

[0137] 521. Grab the rodless component;

[0138] 522. Second guide rod assembly;

[0139] 523. The second key point;

[0140] 6. Vacuum saturation pressurization device;

[0141] 7. Wiping device;

[0142] 71. Wipe the rodless cylinder;

[0143] 72. Wipe the guide rod cylinder;

[0144] 73. Double-ended cylinder;

[0145] 74. Clamping arm;

[0146] 75. End face wiping sponge;

[0147] 76. Surface wiping sponge;

[0148] 77. Supporting sponge;

[0149] 8. Control device;

[0150] 9. Liquid injection device;

[0151] 10. Soaking device;

[0152] 2101. Sample placement unit;

[0153] 2102, First Control Unit;

[0154] 2103, Second Control Unit;

[0155] 2104. Third control unit;

[0156] 2105. Fourth control unit;

[0157] 2106, Fifth Control Unit;

[0158] 2107. Sixth Control Unit;

[0159] 2108, Seventh Control Unit;

[0160] 2109, Eighth Control Unit;

[0161] 2110. Ninth Control Unit;

[0162] 2111, Calculation Unit;

[0163] 2202. Computer equipment;

[0164] 2204, Processor;

[0165] 2206. Memory;

[0166] 2208. Drive mechanism;

[0167] 2210. Input / output module;

[0168] 2212. Input devices;

[0169] 2214. Output devices;

[0170] 2216. Presentation equipment;

[0171] 2218. Graphical User Interface;

[0172] 2220. Network interface;

[0173] 2222, Communication Link;

[0174] 2224. Communication bus. Detailed Implementation

[0175] The technical solutions in the embodiments described below will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments described herein, and not all of the embodiments. Based on the embodiments described herein, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this document.

[0176] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings herein are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, apparatus, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0177] This specification provides the operational steps of the methods described in the embodiments or flowcharts, but based on conventional or non-inventive labor, more or fewer operational steps may be included. The order of steps listed in the embodiments is merely one possible execution order among many and does not represent the only possible execution order. In actual system or device products, the methods shown in the embodiments or drawings can be executed sequentially or in parallel.

[0178] In one embodiment of this paper, an automatic rock porosity measurement system is provided to address the problem that existing methods for measuring rock porosity typically employ liquid saturation, which are manual and suffer from low efficiency and poor accuracy. Specifically, as shown... Figures 1 to 10 As shown, the automatic rock porosity measurement system includes: a feeding device 2, a weighing device 3, a lifting and immersion device 4, a gripping device 5, a vacuum saturation pressurization device 6, a wiping device 7, and a control device 8.

[0179] The feeding device 2 includes a lifting and rotating component 21 and a material distribution shelf 22 disposed on the lifting and rotating component 21. The material distribution shelf 22 includes multiple layers of loading platforms 223. The loading platforms 223 are used to place core samples. The lifting and rotating component 21 is used to drive the core samples on the loading platforms 223 to move up and down.

[0180] Weighing device 3 is used to weigh the core sample placed on it;

[0181] The lifting immersion device 4 is fixed below the weighing device 3 and connected to the liquid injection device, and is used to immerse or leach the core sample in the weighing device 3 into or out of the liquid in the lifting immersion device 4.

[0182] The gripping device 5 is connected to the control device 8, and is used to grip the core sample and move it between the weighing device 3, the vacuum saturation and pressurization device 6, the wiping device 7, and the stage 223 under the control of the control device 8. Specifically, when the gripping device 5 first grips the core sample from the stage 223 to the weighing device 3, the weighing device 3 measures the dried weight of the core sample. After the core sample has been vacuumed and pressurized, and after the gripping device grips the core sample from the stage 223 to the weighing device 3 for the second time, the liquid in the lifting immersion device 4 is controlled to submerge the core sample, and the weighing device 3 measures the buoyant weight of the core sample. After the gripping device 5 sends the core sample to the wiping device 7 for wiping, and then grips it again to the weighing device 3, the weighing device 3 measures the wet weight of the core sample.

[0183] The vacuum saturation pressurization device 6 is used to vacuum and pressurize the core sample, and the wiping device 7 is used to wipe the liquid on the surface of the core sample.

[0184] The control device 8 is electrically connected to the lifting and rotating assembly 21, the weighing device 3, the lifting and immersion device 4, the gripping device 5, and the wiping device 7. It is used to control the operation of the lifting and rotating assembly 21, the lifting and immersion device 4, the gripping device 5, and the wiping device 7. The weighing device 3 measures the dry weight, buoyant weight, and wet weight of the core sample, and calculates the porosity of the rock based on the dry weight, buoyant weight, and wet weight of the core sample.

[0185] This embodiment sets up a system including a feeding device, a weighing device, a lifting and immersion device, a gripping device, a vacuum saturation and pressurization device, a wiping device, and a control device. The feeding device includes a lifting and rotating assembly and a distributing shelf set on the lifting and rotating assembly. The distributing shelf includes a multi-layer platform, which can automatically measure the dry weight, buoyant weight, and wet weight of multiple core samples. Then, based on the automatically measured dry weight, buoyant weight, and wet weight of each core sample, the porosity of each core sample is calculated. The whole process reduces the interference of human factors, realizes the process of testing in a streamlined, standardized, and automated manner, improves the accuracy, efficiency, and intelligence of testing, and solves the problem that the existing core sample porosity testing process is greatly affected by human factors and lacks a unified control standard.

[0186] In one embodiment of this article, such as Figure 2 As shown, the automatic rock porosity measurement system also includes: a liquid injection device 9, connected to a lifting and immersion device 4, used to provide anhydrous ethanol or kerosene to the lifting and immersion device 4. In specific implementation, the liquid injection device 9 is connected to a control device, which controls the liquid injection device to inject liquid into the lifting and immersion device 4.

[0187] In one embodiment of this article, such as Figure 2 and Figure 3As shown, the automatic rock porosity measurement system also includes: a housing 1 and an immersion device 10. The housing 1 includes a first region 1.1, a second region 1.2, a third region 1.3, and a fourth region 1.4. The first region 1.1 and the second region 1.2 are located in the first layer, and the third region 1.3 and the fourth region 1.4 are located in the second layer. Figure 2 As shown, the first region 1.1 is the upper left corner region, the second region 1.2 is the upper right corner region, the third region 1.3 is the lower left corner region, and the fourth region 1.4 is the lower right corner region.

[0188] Weighing device 3, lifting immersion device 4, gripping device 5, and wiping device 7 are located in the first area 1.1; feeding device 2 is located in the second area 1.2; liquid injection device 9 is located in the third area 1.3; vacuum saturation pressurization device 6 and immersion device 10 are located in the fourth area 1.4. Core samples on the distribution shelf 22 can be immersed in immersion device 10 and connected to vacuum saturation pressurization device 6. In specific implementation, lifting immersion device 4 can also be located below weighing device 3 in the first area.

[0189] A partition is provided between the first region 1.1 and the third region 1.3, and between the first region 1.1 and the second region 1.2, and the partition between the first region 1.1 and the second region 1.2 has a through hole for the gripping device 5 to pass through.

[0190] In practice, the sample chambers of the soaking device 10 and the vacuum saturation pressurization device 6 can be arranged side by side. In some embodiments, in addition to lifting and rotating, the feeding device can also move horizontally, so as to place the core sample in the sample chamber of the soaking device 10 or the vacuum saturation pressurization device 6.

[0191] In some embodiments, the sample chambers of the soaking device 10 and the vacuum saturation pressurization device 6 can be interchanged. For example, by placing the sample chambers of the soaking device 10 and the vacuum saturation pressurization device 6 in a rotating disk, the core sample can be placed in the sample chamber of either the soaking device 10 or the vacuum saturation pressurization device 6.

[0192] In some embodiments, the sample chamber of the soaking device 10 and the vacuum saturation pressurization device 6 can be the same device, which enables the sample after vacuum saturation pressurization to be directly transferred to the weighing system.

[0193] The vacuum saturation pressurization device 6 is an automatic vacuum saturation pressurization device. By setting the vacuum level and saturation pressure, vacuum time and saturation pressurization time that the sample chamber needs to meet during the vacuuming process, the computer software automatically controls the opening and closing of the relevant pneumatic solenoid valves of the device to achieve fully automatic operation of the device.

[0194] This embodiment enables a reasonable layout of the various devices, improving the efficiency and control accuracy of core sample transfer.

[0195] In one embodiment of this article, such as Figure 4 and Figure 5 As shown, the lifting and rotating assembly 21 includes: a lifting assembly 211, a rotating assembly 212, and a hoisting assembly 213.

[0196] The lifting assembly 211 is vertically arranged, the rotating assembly 212 is arranged on the lifting assembly 211, the hoisting assembly 213 is arranged on the rotating assembly 212, and the hoisting assembly 213 is fixed with the material distribution shelf 22.

[0197] The lifting assembly 211 and the rotating assembly 212 are electrically connected to the control device 8. The lifting assembly 211 moves up and down under the control of the control device 8, and the rotating assembly 212 moves around under the control of the control device 8, thereby realizing the lifting and rotating movement of the material distribution shelf 22.

[0198] In one embodiment of this article, such as Figure 6 and Figure 7 As shown, the lifting assembly 213 includes: a rotating connector 2131, a first connector 2132, a compression spring 2133, and a limiting block 2134.

[0199] The upper end of the rotating connector 2131 is disposed on the rotating assembly 212, and the lower end of the rotating connector 2131 has an opening groove 2135. The first connector 2132 is disposed on both sides of the opening groove 2135, and the compression spring 2133 is disposed between the first connectors 2132.

[0200] The limiting block 2134 is located below the compression spring 2133 and is disposed on the rotating connector 2131. The limiting block 2134 has limiting grooves on both sides to constrain the first connector 2132.

[0201] In this embodiment, the upper section of the rotating connector 2131 is connected to the rotating assembly 212 via a mounting flange. Specifically, the rotating connector can be connected in a hook connection, snap-fit ​​connection, or similar manner. The first connector 2132 can be, for example, a hook and a snap-fit; preferably, for ease of operation, the first connector is a hook.

[0202] In one embodiment of this article, such as Figure 6 As shown, the lifting assembly 213 also includes: a guide post 2136 disposed between the first connectors 2132, and a compression spring 2133 sleeved on the guide post 2136.

[0203] In one embodiment of this article, such as Figure 8 and Figure 9 As shown, the material distribution shelf 22 includes: a shaft 221, a handle plate 222, and multiple loading platforms 223.

[0204] A handle plate 222 is fixed to the upper end of the shaft 221. The handle plate 222 has a second connector for connecting the first connector 2132 in the lifting assembly 213. The second connector cooperates with the first connector to realize the connection between the lifting assembly and the material distribution shelf. When the first connector is a hook, the second connector is a hanging hole.

[0205] The stage 223 is evenly distributed on the shaft 221 and is used to place the core sample.

[0206] In one embodiment of this article, such as Figure 10 As shown, the stage 223 is provided with multiple circularly arranged limiting grooves 224 and sliding notches 225 identical to the limiting grooves 224. The core sample is placed in the limiting groove between adjacent stages. In specific implementation, the distance between adjacent stages can be adaptively adjusted according to the height of the core sample, thereby ensuring that the core sample is stably placed on the stage.

[0207] This embodiment facilitates the gripping device in grabbing or returning the core sample from the stage.

[0208] In one embodiment of this article, such as Figure 11 and Figure 12 As shown, the weighing device 3 includes: a balance 31, a weighing base 32, and a core sample placement rack.

[0209] The weighing base 32 has a balance 31 on its upper side, a cavity inside, a window for the gripping device 5 to extend into on its side, and an opening for installing the lifting and immersion device 4 on its bottom side.

[0210] One end of the placement rack is located on the upper side of the cavity and is used to place the core sample.

[0211] In some embodiments, the core sample placement rack includes a rod 33 and a basket 34. One end of the rod 33 is disposed on the upper side of the cavity, and the basket 34 is located inside the cavity and disposed on the other end of the rod 33 for placing the core sample.

[0212] In one embodiment of this article, such as Figure 11 and Figure 12 As shown, the lifting and immersion device 4 includes: a buoyancy tank 41 and a lifting assembly 42.

[0213] The buoyancy tank 41 is fixed on the lifting assembly 42 and connected to the liquid injection device. The lifting assembly 42 is electrically connected to the control device 8. Under the control of the control device 8, the lifting assembly 42 drives the buoyancy tank 41 to move up and down, thereby immersing the core sample on the weighing device into the liquid leached from the buoyancy tank 41.

[0214] In one embodiment of this article, the gripping device has an electric arm, which enables the gripping of core samples to move between the feeding device, the weighing device, and the wiping device.

[0215] In one embodiment of this article, such as Figure 2 As shown, the housing 1 is also provided with a wiping transfer station, which is located in the first area and on one side of the wiping device 7.

[0216] like Figure 2 As shown, the gripping device 5 includes a first gripping device 51 and a second gripping device 52.

[0217] The first gripping device 51 is located on one side of the weighing device 3 and is used to grip the core sample and move it between the feeding device 2, the weighing device 3, and the wiping transfer station.

[0218] The second gripping device 52 is located on one side of the wiping transfer station and is used to grip the core sample and move it between the wiping transfer station and the wiping device 7. In some embodiments, the second gripping device 52 and the wiping device 7 are located in front of the left side and behind the left side of the first gripping device 51, respectively.

[0219] In one embodiment of this article, such as Figure 13 and Figure 14 As shown, the first gripping device 51 includes: a three-position assembly 511, a first guide rod assembly 512, a swing assembly 513, and a first gripper 514 for holding the core sample;

[0220] The first guide rod assembly 512 is mounted on the three-position assembly 511, and the first gripper 514 is mounted on the first guide rod assembly 512 via the swing assembly 513. The three-position assembly 511 and the first guide rod assembly 512 work together to control the first gripper 514 to move between the feeding device 2, the weighing device 3, and the wiping transfer station.

[0221] The swing assembly 513 is used to control the first gripper 514 to flip.

[0222] In one embodiment of this article, such as Figure 15 and Figure 16 As shown, the second gripping device 52 includes: a gripping rodless assembly 521, a second guide rod assembly 522, and a second gripper 523.

[0223] The gripping rodless assembly 521 is fixed above the wiping transfer station. The second gripper 523 is fixed between the gripping rodless assembly 521 and the wiping transfer station via the second guide rod assembly 522. The gripping rodless assembly 521 and the second guide rod assembly 522 work together to control the second gripper 523 to reciprocate between the wiping transfer station and the wiping device 7.

[0224] In one embodiment of this paper, the first and second grippers are pneumatic grippers, and ultrasonic ranging sensors are installed on the grippers to achieve identification and precise positioning of the core sample. The control device is equipped with a position control program, which can automatically analyze the position of the core sample, thereby achieving precise positioning of the core sample.

[0225] In one embodiment of this article, such as Figure 17 and Figure 18 As shown, the wiping device 7 includes: a rodless wiping cylinder 71, a wiping guide rod cylinder 72, a double-headed cylinder 73, a clamping arm 74, two end-face wiping sponges 75, a support sponge 77 for receiving the core sample, and a surface wiping sponge 76.

[0226] The rodless wiping cylinder 71 is fixed to one side of the double-headed cylinder 73.

[0227] The wiping guide cylinder 72 is slidably fixed to the wiping rodless cylinder 71 via a bracket. The wiping guide cylinder 72 can move horizontally along the wiping rodless cylinder 71 and can also extend and retract vertically.

[0228] The double-headed cylinder 73 is fixed on one side of the wiping and transfer station.

[0229] The end-face wiping sponge 75 is symmetrically fixed to both ends of the double-headed cylinder 73 by the clamping arms 74.

[0230] The surface wiping sponge 76 is mounted on the wiping guide rod cylinder 72 and is located above the supporting sponge 77.

[0231] The support sponge 77 is fixed above the double-headed cylinder 73 and located between the end face wiping sponges 75.

[0232] The rodless wiping cylinder 71 and the wiping guide rod cylinder 72 work together to control the surface wiping sponge 76 to wipe the surface of the core sample on the supporting sponge 77. The double-headed cylinder 73 controls the end-face wiping sponge 75 to wipe the end face of the core sample on the supporting sponge 77 through the clamping arm 74. Specifically, after the core sample is placed on the supporting sponge 77, the wiping guide rod cylinder 72 is controlled to move on the rodless wiping cylinder 71. After it is above the supporting sponge 77, the wiping guide rod cylinder 72 is controlled to move downward, so that the surface wiping sponge 76 contacts the core sample. The double-headed cylinder 73 moves relative to the surface wiping sponge 76, so that the end-face wiping sponge 75 contacts the core sample.

[0233] To ensure better adhesion between the sponge and the core sample, both the support sponge and the surface wiping sponge have a V-shaped structure that adapts to the outer surface of the core sample.

[0234] This embodiment enables precise wiping of core samples, and the degree of liquid drying on the surface of the core sample can be controlled by adjusting the tightness of the clamping of the core sample.

[0235] In one embodiment of this article, the automatic rock porosity measurement system further includes: a liquid concentration detector and an alarm device;

[0236] A liquid concentration detector is installed in the liquid injection device 9 and connected to the control device 8. It is used to detect the liquid concentration in the liquid injection device 9 and send the detected liquid concentration to the control device 8.

[0237] The control device 8 is connected to the alarm device and is also used to determine whether the liquid concentration meets the preset conditions. If it does not meet the conditions, the control device will be activated to sound an alarm.

[0238] In one embodiment of this paper, the automatic rock porosity measurement system further includes a core sample detachment detector, which is installed on the distribution shelf 22 and connected to the control device 8. This detector detects whether a core sample has detached from the distribution shelf 22. If so, it sends a detachment signal to the control device 8. The control device 8 terminates its operation based on the detachment signal.

[0239] In some implementations, the core sample detachment detector is an image acquisition device or a weight sensor; however, this article does not limit the specific type of core sample.

[0240] In one embodiment of this article, the automatic rock porosity measurement system further includes: an image acquisition device, which is installed on the weighing device 3 and connected to the control device 8, for acquiring images of the rock core sample on the weighing device 3;

[0241] The control device 8 is also used to identify the image of the core sample acquired by the image acquisition device, determine the lithology of the core sample, determine the drying procedure based on the lithology of the core sample, and control the wiping device 7 to wipe the core sample according to the determined drying procedure.

[0242] In one embodiment of this paper, for each core sample, the rock density is also calculated (based on the volume of the core sample). A linear regression relationship is established using the rock density and porosity of different core samples. The location where R2 is less than a predetermined value is found in the linear regression relationship. The data measured by the core sample at this location is abnormal, and the core sample at this location is retested.

[0243] In one embodiment of this article, an automatic rock porosity measurement method is also provided, applicable to the automatic rock porosity measurement system described in any of the foregoing embodiments. Specifically, as shown in the example... Figure 19 As shown, it includes:

[0244] S1, Place the dried core sample into the feeding device;

[0245] S2, control the lifting and rotating components to lift and rotate so that the core samples in the material distribution shelf are aligned with the grabbing device in sequence;

[0246] S3, control the grabbing device to grab the core sample from the material distribution shelf, send the grabbed core sample to the weighing device, and obtain the dried weight data of the core sample measured by the weighing device.

[0247] S4, control the gripping device to transfer the core sample in the weighing device to the gripping device, repeat the above steps S2 to S4 until all core samples in the distribution shelf have been measured with dried weight data.

[0248] S5 controls the lifting and rotating assembly to move up and down so that the core sample in the material distribution shelf is placed in the vacuum saturation pressurization device for saturation pressurization.

[0249] S6 controls the lifting and rotating assembly to move up and down so that the core samples in the material distribution shelf are aligned with the grabbing device in sequence.

[0250] S7, control the grabbing device to grab the core sample from the material distribution shelf, transfer the core sample from the residential area to the weighing device, and control the lifting immersion device to move upward so that the core sample is immersed in the saturated liquid, obtain the buoyancy data of the core sample measured by the weighing device, and control the lifting immersion device to reset.

[0251] S8, control the gripping device to transfer the core sample from the weighing device to the wiping device;

[0252] S9, control the wiping device to wipe the surface of the core sample. After wiping, control the gripping device to transfer the core sample on the wiping device to the weighing device and obtain the wet weight data of the core sample measured by the weighing device.

[0253] S10, control the gripping device to transfer the core sample in the weighing device to the material distribution shelf, and repeat steps S6 to S10.

[0254] S11. Calculate the porosity of the core sample based on its dried weight, buoyant weight, and wet weight data.

[0255] In this step, the porosity of the core sample is calculated using the following formula:

[0256] ;

[0257] in, The porosity of the core sample. m 1 represents the wet weight data of the core sample. m 2 represents the dried weight data of the core samples. m 3 represents the buoyancy data of the core sample.

[0258] In this embodiment, the data measured by the weighing device and the calculated porosity data can be stored in the analytical experimental management system, and the information of the experimental personnel can also be recorded. By recording the experimental data throughout the entire process, the traceability, integrity, and authenticity of the data and process can be guaranteed.

[0259] In one embodiment of this article, such as Figure 20 Step S5 is followed by:

[0260] Step S5': Control the movement of the lifting and rotating assembly to place the core sample on the material distribution shelf into the soaking device.

[0261] This embodiment ensures that the core sample remains in a saturated liquid state, guaranteeing the accuracy of buoyancy data calculation.

[0262] Based on the same inventive concept, this paper also provides an automatic porosity measurement and control device for stone, as described in the following embodiments. Since the principle of the automatic porosity measurement and control device is similar to that of the automatic porosity measurement method, the implementation of the automatic porosity measurement and control device can be referred to the automatic porosity measurement method, and repeated details will not be elaborated further. Figure 21 As shown, it includes:

[0263] The sample placement unit 2101 is used to place the dried core sample into the feeding device;

[0264] The first control unit 2102 is used to control the lifting and rotating assembly to lift and rotate so that the core samples in the material distribution shelf are aligned with the gripping device in sequence.

[0265] The second control unit 2103 is used to control the grabbing device to grab the core sample from the material distribution shelf, send the grabbed core sample to the weighing device, and obtain the dried weight data of the core sample measured by the weighing device.

[0266] The third control unit 2104 is used to control the gripping device to transfer the core sample in the weighing device to the gripping device, and to repeatedly start the first control unit to the third control unit until all core samples in the distribution shelf have been measured with dried weight data.

[0267] The fourth control unit 2105 is used to control the lifting and rotating assembly to move up and down so that the core sample in the material distribution shelf is placed in the vacuum saturation pressurization device for saturation pressurization.

[0268] The fifth control unit 2106 is used to control the lifting and rotating assembly to move up and down so that the core samples in the material distribution shelf are aligned with the grabbing device in sequence.

[0269] The sixth control unit 2107 is used to control the grabbing device to grab the core sample from the material distribution shelf, transfer the core sample from the residential area to the weighing device, and control the lifting immersion device to move upward so that the core sample is immersed in the saturated liquid, obtain the buoyancy data of the core sample measured by the weighing device, and control the lifting immersion device to reset.

[0270] The seventh control unit 2108 is used to control the gripping device to transfer the core sample from the weighing device to the wiping device;

[0271] The eighth control unit 2109 is used to control the wiping device to wipe the surface of the core sample. After wiping, it controls the gripping device to transfer the core sample on the wiping device to the weighing device and obtain the wet weight data of the core sample measured by the weighing device.

[0272] The ninth control unit 2110 is used to control the gripping device to transfer the core sample in the weighing device to the material distribution shelf, and to repeatedly activate the seventh to ninth control units;

[0273] The calculation unit 2111 is used to calculate the porosity of the core sample based on the dried weight data, buoyant weight data and wet weight data of the core sample.

[0274] The automatic rock porosity measurement system, method, and control device provided in this paper can achieve the following technical effects:

[0275] 1. It can automatically measure the dried weight, buoyant weight, and wet weight of core samples, and derive the porosity of the core samples accordingly. This achieves a streamlined, standardized, and autonomous testing process, improving the accuracy, efficiency, and intelligence of the tests. It solves the problem of significant human influence and the lack of unified control standards during the drying of core samples. Furthermore, it eliminates the need for manual sample handling, reducing operator contact and operational risks, ensuring a safe working environment, and minimizing quality issues caused by measurement errors, thus improving the accuracy of the measurement results.

[0276] 2. Different drying programs are pre-designed according to lithology. The program can automatically identify the lithology and match different drying programs according to different lithologies, ensuring that excess liquid on the sample surface is dried without removing liquid from the sample.

[0277] 3. This paper addresses the mechanical design challenges of precise core sample positioning, sample handling of different sizes, batch transport, drying processes, and sample flow routes. For the development of the mechanical transport and weighing arm, the arm's movement path needs meticulous design. Through multiple simulations and corrections, the required accuracy and success rate for this test must reach over 95%. The design of the process for drying excess liquid from the surface requires establishing corresponding physical models based on factors such as fluid properties, the wettability and porosity of different rock surfaces, and the adsorption characteristics of wiping materials for different fluids. This involves calculating the required force, duration, and suitable wiping materials for different fluid and rock conditions, conducting human-machine comparison and physical model verification experiments, adjusting the process to an accurate state, and fixing it in the control device to ensure the accuracy of experimental data and improve or eliminate human error in wet weight measurement. Simultaneously, the location of each functional area needs to be rationally planned and designed to achieve both equipment safety and smooth operation while maintaining the equipment's aesthetic appeal.

[0278] 4. This paper reduces human error through high-precision measurement and data analysis, enabling the analysis of more subtle porosity differences and lowering the risk of errors and loopholes in data quality management and analysis caused by manual operation and recording. To achieve comprehensive management and analysis of experimental data, a local area network is connected to each stage and data acquisition device, directly uploading and storing the raw data generated during the experiment to the analysis and experimental management system. Experimental data is recorded in real time throughout the process, ensuring the traceability, integrity, and authenticity of the data and process. Furthermore, based on the porosity calculation formula and experience in analyzing and judging data correctness, the porosity and accuracy of samples are calculated and judged, and questionable sample numbers are identified. Automatic calibration can also be achieved, reducing experimental time and costs.

[0279] 5. This paper utilizes precision pneumatic components and control devices (such as a microcomputer control system). Equipped with an intelligent sensor system, it can be integrated into various laboratory information management modules, achieving comprehensive informatization and remote control of the system and methods. Compared to non-fully automatic porosity analyzers, this method achieves highly efficient resource utilization in terms of human resources, materials, and equipment, reduces manual intervention during the measurement process, and improves work efficiency.

[0280] In one embodiment of this document, a computer device is also provided, such as... Figure 22As shown, computer device 2202 may include one or more processors 2204, such as one or more central processing units (CPUs), each of which may implement one or more hardware threads. Computer device 2202 may also include any memory 2206 for storing information of any kind, such as code, settings, data, etc. Non-limitingly, for example, memory 2206 may include any type of RAM, any type of ROM, flash memory, hard disk, optical disk, etc. More generally, any memory can use any technology to store information. Furthermore, any memory may provide volatile or non-volatile retention of information. Furthermore, any memory may represent a fixed or removable component of computer device 2202. In one case, when processor 2204 executes associated instructions stored in any memory or combination of memories, computer device 2202 may perform any operation of the associated instructions. Computer device 2202 also includes one or more drive mechanisms 2208 for interacting with any memory, such as hard disk drive mechanisms, optical disk drive mechanisms, etc.

[0281] Computer device 2202 may also include an input / output module 2210 (I / O) for receiving various inputs (via input device 2212) and providing various outputs (via output device 2214). A specific output mechanism may include a presentation device 2216 and an associated graphical user interface 2218 (GUI). In other embodiments, the input / output module 2210 (I / O), input device 2212, and output device 2214 may be omitted, and the device may function solely as a computer device within a network. Computer device 2202 may also include one or more network interfaces 2220 for exchanging data with other devices via one or more communication links 2222. One or more communication buses 2224 couple the components described above together.

[0282] Communication link 2222 can be implemented in any way, such as via a local area network, a wide area network (e.g., the Internet), a point-to-point connection, or any combination thereof. Communication link 2222 may include any combination of hardwired links, wireless links, routers, gateway functions, name servers, etc., governed by any protocol or combination of protocols.

[0283] This embodiment also provides a computer-readable storage medium storing a computer program that, when executed by a processor, performs the steps of the above-described method.

[0284] This embodiment also provides a computer-readable instruction, wherein when a processor executes the instruction, the program therein causes the processor to perform the method described in any of the foregoing embodiments.

[0285] It should be understood that in the various embodiments of this document, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this document.

[0286] It should also be understood that, in the embodiments herein, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following associated objects have an "or" relationship.

[0287] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this document.

[0288] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0289] In the embodiments provided herein, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the couplings or direct couplings or communication connections shown or discussed may be indirect couplings or communication connections through some interfaces, devices, or units, or they may be electrical, mechanical, or other forms of connection.

[0290] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiments described herein, depending on actual needs.

[0291] Furthermore, the functional units in the various embodiments of this document can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0292] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this paper, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this paper. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0293] This document uses specific embodiments to illustrate the principles and implementation methods of this document. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this document. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this document. Therefore, the content of this specification should not be construed as a limitation of this document.

Claims

1. An automatic rock porosity measurement system, characterized in that, include: Feeding device (2), weighing device (3), lifting and immersion device (4), gripping device (5), vacuum saturation and pressurization device (6), wiping device (7) and control device (8); The feeding device (2) includes a lifting and rotating assembly (21) and a distribution shelf (22) set on the lifting and rotating assembly (21). The distribution shelf (22) is used to place multiple core samples, and the lifting and rotating assembly (21) is used to drive the core samples to move up and down. The weighing device (3) is used to weigh the core sample placed on it; The lifting immersion device (4) is fixed below the weighing device (3) and connected to the liquid injection device, and is used to immerse the core sample in the weighing device (3) into or leach out the liquid in the lifting immersion device (4); The gripping device (5) is connected to the control device (8) and is used to grip the core sample under the control of the control device (8) and move it between the weighing device (3), the vacuum saturation pressurization device (6), the wiping device (7) and the feeding device (2); The vacuum saturation pressurization device (6) is used to vacuum and pressurize core samples; The wiping device (7) is used to wipe the liquid on the surface of the core sample; The control device (8) is electrically connected to the lifting and rotating assembly (21), the weighing device (3), the lifting and immersion device (4), the gripping device (5), and the wiping device (7). It is used to control the operation of the lifting and rotating assembly (21), the lifting and immersion device (4), the gripping device (5), and the wiping device (7). The weighing device (3) measures the dry weight, buoyant weight, and wet weight of the core sample. The rock porosity is calculated based on the dry weight, buoyant weight, and wet weight of the core sample. The lifting and rotating assembly (21) includes: a lifting assembly (211), a rotating assembly (212), and a hoisting assembly (213). The lifting assembly (211) is vertically arranged, the rotating assembly (212) is arranged on the lifting assembly (211), the hoisting assembly (213) is arranged on the rotating assembly (212), and the hoisting assembly (213) is fixed with the material distribution shelf (22). The lifting assembly (211) and the rotating assembly (212) are electrically connected to the control device (8). The lifting assembly (211) moves up and down under the control of the control device (8), and the rotating assembly (212) moves around under the control of the control device (8), thereby realizing the lifting and rotating movement of the material distribution shelf (22).

2. The system as described in claim 1, characterized in that, Also includes: The liquid injection device (9) is connected to the lifting immersion device (4) and is used to provide anhydrous ethanol or kerosene to the lifting immersion device (4).

3. The system as described in claim 2, characterized in that, Also includes: Shell (1) and immersion device (10); The shell (1) includes a first region (1.1), a second region (1.2), a third region (1.3) and a fourth region (1.4), with the first region (1.1) and the second region (1.2) located in the first layer, and the third region (1.3) and the fourth region (1.4) located in the second layer; Weighing device (3), lifting immersion device (4), grabbing device (5), wiping device (7) are set in the first area (1.1), feeding device (2) is set in the second area (1.2), liquid injection device (9) is set in the third area (1.3), vacuum saturation pressurization device (6) and soaking device (10) are set in the fourth area (1.4), and core samples on the distribution shelf (22) can be immersed in the soaking device (10) and connected to the vacuum saturation pressurization device (6); A partition is provided between the first region (1.1) and the third region (1.3), and between the first region (1.1) and the second region (1.2), and the partition between the first region (1.1) and the second region (1.2) has a through hole for the gripping device (5) to pass through.

4. The system as described in claim 1, characterized in that, The lifting assembly (213) includes: a rotating connector (2131), a first connector (2132), a compression spring (2133), and a limiting block (2134); The upper end of the rotating connector (2131) is disposed on the rotating assembly (212), and the lower end of the rotating connector (2131) has an opening groove (2135). The first connector (2132) is disposed on both sides of the opening groove (2135), and the compression spring (2133) is disposed between the first connector (2132). The limiting block (2134) is located below the compression spring (2133) and is disposed on the rotating connector (2131). The limiting block (2134) has limiting grooves on both sides to constrain the first connector (2132).

5. The system as described in claim 4, characterized in that, The lifting assembly (213) also includes: a guide post (2136) disposed between the first connectors (2132), and a compression spring (2133) sleeved on the guide post (2136).

6. The system as described in claim 4, characterized in that, The material distribution shelf (22) includes: a shaft (221), a handle plate (222) and multiple storage platforms (223); The upper end of the shaft (221) is fixed with a handle plate (222), and the handle plate (222) has a second connector for connecting the first connector (2132) in the lifting assembly (213). The stage (223) is evenly distributed on the shaft (221) and is used to place the core sample.

7. The system as described in claim 6, characterized in that, The stage (223) is provided with multiple circularly arranged limiting grooves (224) and sliding notches (225) identical to the limiting grooves.

8. The system as described in claim 1, characterized in that, The weighing device (3) includes: a balance (31), a weighing base (32), and a core sample placement rack; A balance (31) is provided on the upper side of the weighing base (32), the weighing base (32) has a cavity inside, the side of the weighing base (32) is provided with a window for the gripping device (5) to be inserted, and the bottom side of the weighing base (32) is provided with an opening for installing the lifting immersion device (4). One end of the placement rack is located on the upper side of the cavity, and the placement rack is used to place core samples.

9. The system as described in claim 8, characterized in that, The lifting and immersion device (4) includes: a buoyancy tank (41) and a lifting assembly (42); The buoyancy tank (41) is fixed on the lifting assembly (42) and connected to the liquid injection device. The lifting assembly (42) is electrically connected to the control device (8). Under the control of the control device (8), the lifting assembly (42) drives the buoyancy tank (41) to move up and down, thereby immersing the core sample on the weighing device into the liquid leached from the buoyancy tank (41).

10. The system as described in claim 3, characterized in that, The housing (1) is also provided with a wiping transfer station, which is located in the first area (1.1) and is located on one side of the wiping device (7); The gripping device (5) includes: a first gripping device (51) and a second gripping device (52); The first gripping device (51) is located on one side of the weighing device (3) and is used to grip the core sample and move it between the feeding device (2), the weighing device (3), and the wiping transfer station. The second gripping device (52) is located on one side of the wiping transfer station and is used to grip the core sample and move it between the wiping transfer station and the wiping device (7).

11. The system as claimed in claim 10, characterized in that, The first gripping device (51) includes: a three-position assembly (511), a first guide rod assembly (512), a swing assembly (513), and a first gripper (514) for holding the core sample. The first guide rod assembly (512) is mounted on the three-position assembly (511), and the first gripper (514) is mounted on the first guide rod assembly (512) via the swing assembly (513). The three-position assembly (511) and the first guide rod assembly (512) work together to control the first gripper (514) to move between the feeding device (2), the weighing device (3), and the wiping transfer station. The swing assembly (513) is used to control the first gripper (514) to flip.

12. The system as claimed in claim 10, characterized in that, The second gripping device (52) includes: a gripping rodless assembly (521), a second guide rod assembly (522), and a second gripper (523); The gripping rodless assembly (521) is fixed above the wiping transfer station. The second gripper (523) is fixed between the gripping rodless assembly (521) and the wiping transfer station via the second guide rod assembly (522). The gripping rodless assembly (521) and the second guide rod assembly (522) work together to control the second gripper (523) to reciprocate between the wiping transfer station and the wiping device (7).

13. The system as described in claim 10, characterized in that, The wiping device (7) includes: a rodless wiping cylinder (71), a wiping guide rod cylinder (72), a double-headed cylinder (73), a clamping arm (74), two end face wiping sponges (75), a support sponge for receiving the core sample (77), and a surface wiping sponge (76). The rodless wiping cylinder (71) is fixed to one side of the double-headed cylinder (73); The wiping guide rod cylinder (72) is slidably fixed on the wiping rodless cylinder (71) via a bracket; The double-headed cylinder (73) is fixed on one side of the wiping transfer station; The end-face wiping sponge (75) is symmetrically fixed to both ends of the double-headed cylinder (73) by the clamping arms (74); The surface wiping sponge (76) is fixed above the supporting sponge (77) by the wiping guide rod cylinder (72); The support sponge (77) is fixed between the end face wiping sponges (75); The wiping rodless cylinder (71) and the wiping guide rod cylinder (72) work together to control the surface wiping sponge (76) to wipe the surface of the core sample on the support sponge (77). The double-headed cylinder (73) controls the end face wiping sponge (75) to wipe the end face of the core sample on the support sponge (77) through the clamping arm (74).

14. The system as described in claim 2, characterized in that, Also includes: Liquid concentration detectors and alarm devices; A liquid concentration detector is installed in the liquid injection device (9) and connected to the control device (8) to detect the liquid concentration in the liquid injection device (9) and send the detected liquid concentration to the control device (8). The control device (8) is connected to the alarm device and is also used to determine whether the liquid concentration meets the preset conditions. If it does not meet the conditions, the alarm device is controlled to sound an alarm.

15. The system as claimed in claim 1, characterized in that, Also includes: The core sample detachment detector is set on the material distribution shelf (22) and connected to the control device (8) to detect whether the core sample on the material distribution shelf (22) has fallen off. If so, a detachment signal is sent to the control device (8). The control device (8) terminates operation based on the detachment signal.

16. The system as claimed in claim 1, characterized in that, Also includes: An image acquisition device is installed on the weighing device (3) and connected to the control device (8) for acquiring images of the core sample on the weighing device (3); The control device (8) is also used to identify the image of the core sample acquired by the image acquisition device, determine the lithology of the core sample, determine the drying procedure based on the lithology of the core sample, and control the wiping device (7) to wipe the core sample according to the determined drying procedure.

17. An automatic method for measuring rock porosity, characterized in that, The automatic rock porosity measurement system according to any one of claims 1 to 16 comprises: S1, Place the dried core sample into the feeding device; S2, control the lifting and rotating components to lift and rotate so that the core samples in the material distribution shelf are aligned with the grabbing device in sequence; S3, control the grabbing device to grab the core sample from the material distribution shelf, send the grabbed core sample to the weighing device, and obtain the dried weight data of the core sample measured by the weighing device. S4, control the gripping device to transfer the core sample in the weighing device to the gripping device, repeat the above steps S2 to S4 until all core samples in the distribution shelf have been measured with dried weight data. S5 controls the lifting and rotating assembly to move up and down so that the core sample in the material distribution shelf is placed in the vacuum saturation pressurization device for saturation pressurization. S6 controls the lifting and rotating assembly to move up and down so that the core samples in the material distribution shelf are aligned with the grabbing device in sequence. S7, control the grabbing device to grab the core sample from the material distribution shelf, transfer the core sample from the residential area to the weighing device, and control the lifting immersion device to move upward so that the core sample is immersed in the saturated liquid, obtain the buoyancy data of the core sample measured by the weighing device, and control the lifting immersion device to reset. S8, control the gripping device to transfer the core sample from the weighing device to the wiping device; S9, control the wiping device to wipe the surface of the core sample. After wiping, control the gripping device to transfer the core sample on the wiping device to the weighing device and obtain the wet weight data of the core sample measured by the weighing device. S10, control the gripping device to transfer the core sample in the weighing device to the material distribution shelf, and repeat steps S6 to S10. S11. Calculate the porosity of the core sample based on its dried weight, buoyant weight, and wet weight data.

18. The method as described in claim 17, characterized in that, Step S5 is followed by: Control the movement of the lifting and rotating components to place the core samples on the material distribution shelf into the soaking device.

19. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method of claim 17 or 18.

20. A computer storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor of the computer device, it implements the method of claim 17 or 18.

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