32 results about "Stone sample" patented technology

A testing device for measuring oil, gas and water contents in rock has a heating desorption unit that has a sample chamber for placing a rock sample to be detected, a crushing mechanism arranged within the sample chamber, and a heating mechanism. The heating desorption unit crushes and heats the rock sample in a sealed manner to achieve gas analysis and desorption analysis of oil and water contained therein, thus obtaining components to be detected. The device further has a cold trap collection unit in communication with the sample chamber, a light hydrocarbon capture unit in communication with the cold trap collection unit, a gas measuring unit in communication with the light hydrocarbon capture unit for measuring and calculating a gas volume; and a central control unit for controlling the testing device.

The utility model discloses a rock sample water saturation device, which relates to the technical field of rock water saturation and comprises a flexible water saturation cover, a water supply component and a pressurizing component. A sealed saturated water cavity is formed in the flexible saturated water cover, the saturated water cavity is used for accommodating a rock sample, and the flexible saturated water cover can be flexibly deformed, so that the saturated water cavity is matched with the rock sample in shape; the water supply assembly comprises a water supply pipe and a water storage structure, two ends of the water supply pipe are respectively communicated with the saturated water cavity and the water storage structure, and the water storage structure is used for storing water; the pressurizing assembly comprises a pressurizing pipe, a sucking pump and a pressurizing tank, the sucking pump is communicated with the pressurizing tank, and two ends of the pressurizing pipe are respectively communicated with the saturated water cavity and the pressurizing tank. The water saturation device for the rock sample provided by the utility model can be suitable for rock samples with different shapes and sizes, and the water saturation treatment effect on the rock can be effectively improved.

The invention provides a stone analysis method based on attenuated total reflection Fourier transform infrared spectroscopy. The stone analysis method comprises the following steps: S1, placing and fixing a stone sample to be detected; s2, acquiring an infrared light signal and converting the infrared light signal into original spectral data; s3, processing the original spectrum data to obtain a corrected spectrum; s4, taking the correction spectrum as input, obtaining a preliminary prediction category by using a partial least square discriminant analysis algorithm, and calculating a feature importance index of each wavenumber at the same time; s5, according to the feature importance index, using a random forest algorithm to obtain a secondary prediction category; and combining the accuracy rate of the partial least square discriminant analysis model and the accuracy rate of the random forest model to obtain a final prediction category. According to the method, an attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) technology is taken as a core, and an innovative thought of'pretreatment-free sample treatment + multi-algorithm collaborative analysis' is combined, so that a complete stone analysis process from sample fixation to clinical report output is constructed.

The invention discloses a natural stone texture imitating artificial stone sample color detection device, and relates to the technical field of detection, the natural stone texture imitating artificial stone sample color detection device comprises a vertical machine shell, the vertical machine shell is internally divided into an upper layer mounting area, a middle layer mounting area and a lower layer mounting area along the height direction; the illumination simulation system comprises a first illumination module mounted in the middle-layer mounting area and a second illumination module mounted in the upper-layer mounting area, the first illumination module is used for simulating morning light and evening light in daily life, and the second illumination module is used for simulating noon vertical light; and the sample conveying and positioning mechanism is arranged in the lower-layer mounting area. Through illumination scene precision, detection process automation and module layout rationalization, the core defects of traditional manual detection are effectively overcome, the accuracy and consistency of natural stone imitating artificial stone flower color detection can be improved, the large-scale production requirement can be met, and the method is suitable for large-scale production. The method is of great significance to promotion of industry detection technology upgrading, reduction of user complaints and improvement of product market competitiveness.

The invention discloses a reservoir water-rock reaction simulation analysis method and a reservoir water-rock reaction simulation experiment device. The method comprises the following steps: obtaining diagenesis evolution analysis data and reservoir feature data of a prototype sample; the prototype sample and the rock sample to be tested are taken from the same block; drilling a first parallel sample and a plurality of second parallel samples based on the to-be-tested rock sample; determining experiment pressure and experiment temperature according to diagenesis evolution analysis data; obtaining reservoir feature data of a plurality of second parallel samples after different water-rock ratio simulation experiments, and determining a water-rock ratio corresponding to the minimum difference between the reservoir feature data and the reservoir feature data of the prototype sample from the reservoir feature data; after the first parallel sample and the reaction fluid are subjected to a simulation experiment based on the experiment pressure, the experiment temperature and the corresponding water-rock ratio, reservoir feature data changes of the first parallel sample before and after the simulation experiment and multiple ion concentration change data of the reaction fluid before and after the simulation experiment are obtained, and a water-rock reaction simulation analysis result is determined. According to the method, the actual water-rock ratio can be set.

The invention discloses an automatic core splitting device for rock sampling, and belongs to the technical field of core splitting devices. An automatic core splitting device for rock sampling comprises a storage assembly used for storing samples to be split, a groove used for bearing the samples, a cutting assembly used for core splitting operation and a storage assembly used for bearing the samples subjected to core splitting, and the storage assembly, the groove and the cutting assembly are all arranged on a rack; a clamping assembly used for fixing a sample, a moving assembly used for driving the clamping assembly to do horizontal reciprocating motion and a jacking assembly used for driving the clamping assembly to move up and down are arranged on the rack; according to the rock sample core splitting device, through the arranged moving assembly and clamping assembly, the rock sample can be driven to horizontally move, core splitting operation on the rock sample is automatically achieved, and therefore the problem that in the prior art, core splitting operation on the rock sample mostly needs manual operation is solved.

The present invention is a method of detecting and counting a geological constituent (cge) of an acquired image of a rock sample (IER), by a location detection machine learning method (ALG).

The invention provides a method for detecting the anti-knock property of silica. The detection method comprises the following steps: performing high-temperature treatment on a silica sample to be detected in a sealed state; performing a drum test on the cooled silica sample to be detected to obtain silica particles; the silica particles are sieved, target silica particles are obtained, and the particle size of the target silica particles is larger than 20 mm; calculating the anti-explosion rate of the silica to be detected according to the total mass of the silica sample to be detected and the total mass of the target silica particles; the high-temperature treatment comprises the following steps: heating from room temperature to 1400-1600 DEG C at a heating rate of 5-10 DEG C / min, and keeping the temperature for 28-32 minutes. The detection method has the advantages of being matched with actual working conditions, high in safety, high in repeatability and the like.

The present invention relates to the technical field of oil and gas production, in particular a simulation device and a method for the migration, accumulation, and reservoir formation of oil and gas. The simulation device comprises a vessel with a limiting pressure port arranged on a side wall and a limiting pressure sleeve arranged coaxially within the vessel with a gap between them, wherein a rock sample is placed within the limiting pressure sleeve. An external sealing unit is arranged between an annular space between the vessel and the limiting pressure sleeve and is configured to expand radially under axial pressure, thereby improving the sealing performance.Pressure is applied via the limiting pressure port to the annular space between the vessel and the limiting pressure sleeve, causing the sleeve to deform and exert a radial limiting pressure on the rock sample. The device further comprises an end connector located at an axial end of the vessel and configured to axially compress the outer sealing unit and the rock sample.

This invention discloses a resin embedding device for rock samples, including a fume hood; a mold support platform located inside the fume hood, on which multiple cold embedding molds are spaced apart; and a robotic arm assembly integrated within the fume hood. The robotic arm assembly consists of a first robotic arm and a second robotic arm. The first robotic arm is used to add material into the corresponding cold embedding mold, and the second robotic arm is used to stir the cold embedding mold after the material has been added. The device also includes a control system that controls the operation of each mechanism. This resin embedding device enables automated resin embedding of rock samples, improving labor efficiency and reducing work hazards. It allows for rapid preparation of drilling cuttings samples from oil and gas exploration sites, and enables large-scale sample embedding 24 / 7.

The application provides a portable geochemical element analyzer, which comprises a base and a workbench, the base is provided with a translation mechanism, the translation mechanism is provided with a sample storage mechanism, the bottom end of the workbench is provided with a cutting mechanism for cutting samples, the workbench is provided with an element analysis device, and the base is further provided with a power mechanism for driving the translation mechanism and the cutting mechanism. In the application, the power mechanism is arranged on the base, the translation mechanism and the cutting mechanism are synchronously driven by the power mechanism, the stone sample is transported along the tangent direction of the cutting blade by the translation mechanism, the sample is cut by the cutting blade, the upper surface of the sample is cut into a plane, the upper surface of the stone sample is identified by a visual sensor arranged on the workbench, the upper surface of the stone sample is detected by an infrared detection device, and thus the element content of the stone sample is analyzed.

The embodiment of the invention provides a rock fracture geometric parameter determination method and device, equipment and a medium, and relates to the technical field of geological exploration. The method comprises the following steps: acquiring a scanning electron microscope image corresponding to a rock sample to be analyzed, and converting the scanning electron microscope image into a binary image; based on a preset connectivity condition, screening out a target crack connected body from the binary image; extracting a central axis coordinate in the target crack communicating body; and determining at least one rock fracture geometric parameter corresponding to the target fracture communicating body based on the central axis coordinate. According to the method, the problem that an efficient and reliable rock fracture geometric parameter determination method is lacked in related technologies is effectively solved.

The invention discloses a method and a system for evaluating the mechanical sealing property and the pressure-bearing capacity of a gas storage. The method comprises the following steps: acquiring breakthrough pressure data of each cover rock sample in the gas storage in a research area; according to the breakthrough pressure data, the upper limit of the breakthrough pressure of the gas storage cover layer is determined; obtaining the thickness of each cover layer of the gas storage in the research area; according to the shale content data of the gas storage in the research area, obtaining a gas storage fault plugging lower limit; taking the upper limit of the breakthrough pressure of the gas storage cap layer as a model numerical simulation condition to obtain a lower limit of fault stability; wherein the gas storage overburden breakthrough pressure and the thickness of each overburden serve as overburden sealing performance evaluation indexes, and the gas storage fault plugging lower limit and the fault stability lower limit serve as fault sealing performance evaluation indexes. Based on the data processing flow, the invention aims to solve the problem of sealing evaluation of the gas storage in the pressurization and expansion process, and provides scientific basis and technical support for safe operation of the gas storage.

The invention provides a rock sample hydrofracture thermal-mechanical coupling loading experiment device and method, and belongs to the technical field of rock mechanics, the rock sample hydrofracture thermal-mechanical coupling loading experiment device comprises a frame, an upper base, an upper pressing plate, a lower base, a lower support, a fixing support, a rock sample, a loading system and a hydraulic control system; limitation of a traditional triaxial experiment is effectively overcome, true triaxial non-uniform stress and thermal coupling loading of a cylindrical rock sample is realized, an underground complex ground stress and temperature field can be simulated through 12 groups of confining pressure units and 8 partition heating systems, a positioning structure and a limiting system enhance the overall rigidity of a loading cylinder, and the loading cylinder can be used for loading a rock sample. Uniform stress transmission and stable measurement basis are ensured, the signal-to-noise ratio and precision of strain data are improved, the heat conduction frame and the sealing air bag ring are combined with multi-stage sealing and pressure relief design, reliability and safety under high temperature and high pressure are fundamentally ensured, and technical support is provided for deep research of a rock fracture mechanism and optimization of a fracturing process.

This invention provides an experimental apparatus and method for hydraulic fracturing and thermo-coupling loading of rock samples, belonging to the field of rock mechanics technology. The invention includes: a frame, an upper base, an upper pressure plate, a lower base, a lower support, a fixed bracket, a rock sample, a loading system, and a hydraulic control system. This invention effectively overcomes the limitations of traditional triaxial experiments, achieving true triaxial non-uniform stress and thermo-coupling loading of cylindrical rock samples. Through 12 confining pressure units and an 8-zone heating system, it can simulate complex underground stress and temperature fields. The positioning structure and limiting system enhance the overall rigidity of the loading cylinder, ensuring uniform stress transmission and stable measurement benchmarks, and improving the signal-to-noise ratio and accuracy of strain data. The heat-conducting frame and sealing airbag ring, combined with multi-stage sealing and pressure relief design, fundamentally guarantee reliability and safety under high temperature and high pressure, providing technical support for in-depth research on rock fracture mechanisms and optimization of fracturing processes.

The invention relates to the technical field of content detection, and discloses an artificial quartz stone calcium carbonate content detection method and system based on X-ray diffraction, and the method comprises the following steps: obtaining X-ray diffraction pattern data of an artificial quartz stone sample; presetting a plurality of characteristic diffraction peaks of quartzite and calcium carbonate in the atlas data, calculating an initial independence coefficient, and selecting an initial target peak; calculating a structural complexity parameter; determining an analysis diffraction angle window; recalculating the independence coefficient, selecting a reference peak, and selecting a target peak; calculating an asymmetric distortion coefficient; fitting the peak shape contours of the target peak and the reference peak to obtain respective main peak integral areas; calculating a corrected integral area; and calculating the calcium carbonate content based on the main peak integral area or the corrected integral area of the target peak and the main peak integral area of the reference peak. According to the method, by optimizing peak selection, an integral interval and peak shape correction, the negative influence of peak overlapping and peak shape distortion on quantitative analysis is overcome, and the detection precision of the calcium carbonate content is improved.

The application discloses a kidney stone filtering collector, which comprises a urine pool, a stone collecting table, a urine collecting table and a water storage tank, the urine pool is arranged in a toilet style, the bottom of the urine pool is fixedly connected with the stone collecting table as an integrated structure, the inside of the urine pool is composed of a urine cavity, a separation cavity, a stone discharging channel and a urine discharging channel, the separation cavity is arranged below the urine cavity and is communicated with the urine cavity, the bottom of the separation cavity is communicated with the urine discharging channel, the end of the urine discharging channel is communicated with the urine collecting table through a connecting pipeline, and a movable cavity wall which can rotate is arranged in the separation cavity and is used for communicating with the stone discharging channel. The urine of a patient can be automatically filtered and separated, and the patient can directly obtain a stone sample and a urine sample after urinating, so that the application is very convenient and clean and sanitary.

A method to quantity clay content may comprise flowing a rock sample with water, wherein the water is collected, and a capillary electrophoresis analysis or any water analysis method is run on the water. The method further comprises calculating a clay integrated area using constructed water analysis peaks. Lastly, a correlation to quantify the clay content in the rock sample, and another correlation to quantify the clay content in the water sample are formulated.

A method for calibrating a direct flow simulation of a rock sample involves providing a 3D image of a rock sample and generating a segmented structural image of the rock sample from the 3D image by selecting voxels to represent either a pore space or a solid material. Fluid flow is simulated on the segmented structural image with a direct flow simulation. A 3D spatially-resolved fluid velocity map is generated for one or more fluid phases at a pore-scale resolution using pulsed field gradient nuclear magnetic resonance imaging. The simulated fluid flow and the 3D spatially-resolved fluid velocity map are compared to calibrate the direct flow simulation across the rock sample.

Techniques for determining properties of a rock sample include performing a plurality of series of permeability measurements of a rock sample with a permeability test assembly to derive permeability values, where each series includes permeability measurements of the rock sample at a respective, constant differential pressure between a particular confining pressure and a particular pore pressure; for each series of the plurality of series, performing a curve fit operation to determine a slope and an intercept of a curve associated with a selected Biot coefficient, the permeability values, and the particular pore pressures to generate a plurality of slope values and a plurality of intercept values; determining an effective stress coefficient of the rock sample; and determining an actual Biot coefficient of the rock sample.

The utility model discloses a rock sample cutting device which comprises two groups of supporting legs, a working plate is fixedly arranged at the upper ends of the two groups of supporting legs, a placing frame is arranged at the upper end of the working plate, a driving motor is fixedly arranged on the inner wall of the rear end of each supporting leg, and a cutting blade is fixedly arranged at the front end of each driving motor. A stable structure is arranged at the upper end of the containing frame and comprises a machine box, a clamping motor is fixedly arranged at the front end of the machine box, a two-way lead screw is fixedly arranged at the rear end of the clamping motor, the outer wall of the two-way lead screw is sleeved with a clamping sliding block, and a connecting rod is fixedly arranged at the lower end of the clamping sliding block. The rock sample cutting device disclosed by the utility model can automatically clamp and cut rocks, does not need to be manually held by hands at a short distance for cutting, and is relatively safe to use.

The invention provides an effective reservoir main control factor identification method, apparatus and device, and a medium. The effective reservoir main control factor identification method comprises the following steps: S1, obtaining a scanning image of a rock sample in a target area; s2, the scanning image is input into a pre-trained pore type recognition model, the pore type output by the pore type recognition model is obtained, and variables of the pore type recognition model are confirmed according to the correlation between the pore type and the surface seam rate; and S3, confirming the effective reservoir main control factors according to the pore type. According to the method, the pore type with high correlation serves as a model variable, the defect that a conventional method does not refer to the micro pore structure of the reservoir is overcome, gas-water distribution prediction of the tight sandstone gas reservoir and gas-bearing favorable area prediction can be accurately carried out, and important support is provided for well position deployment of the tight sandstone gas reservoir. In addition, the labor time and the economic cost are saved, and the recognition result accuracy of the effective reservoir is improved.

The invention relates to the field of rock sample detection, and discloses a rock sample detection device which comprises a supporting mechanism (1), a hardness detection mechanism (3), a light transmission detection mechanism (4) and a trauma detection mechanism (5), the hardness detection mechanism (3), the light transmission detection mechanism (4) and the trauma detection mechanism (5) are arranged on the supporting mechanism (1), and the hardness detection mechanism (3) comprises a motor (335). The motor (335) can drive the hardness detection mechanism (3), the light transmission detection mechanism (4) and the trauma detection mechanism (5) to move so as to detect the hardness, the light transmission and the trauma of the rock (2). According to the technical scheme, the hardness, the light transmittance and the trauma of the rock can be synchronously detected, and the detection efficiency is improved.

The application discloses a rock sample residual gas tester and a testing method, which comprise a crushing and grinding module, a sealing cover module, a sealing tank main body, an air inlet and outlet module and a sample clamping module; the crushing and grinding module is arranged on the top of the sealing tank main body and adopts a rotary grinding mode to crush and grind a rock sample in the sealing tank main body; the sample clamping module is arranged on the bottom of the sealing tank main body and is used for clamping and fixing the rock sample to be ground; and the air inlet and outlet module is arranged on the side wall of the sealing tank main body and is used for measuring the residual gas content of the rock sample after crushing and grinding. Compared with the prior art, the rock sample crushing and grinding mode disclosed by the application has more advantages. The rock sample crushing in the prior art usually adopts an impact crushing mode, and the rotary crushing and grinding mode adopted by the application has the characteristics of small noise, small dust, small volume and high efficiency, and is more suitable for installation and use in a laboratory and a closed space.

This application discloses an external volume correction method and apparatus suitable for measuring the porosity of rock samples with rough surfaces. The method includes: acquiring scanned raw slice data; and acquiring binary image data volume D characterizing the rock skeleton components based on the scanned raw slice data. 骨架ROI According to D 骨架ROI Obtaining the binary image data volume D after mean processing 实ROI Volume V 实 Based on the binary image data volume D after mean processing 实ROI Obtain the total pore volume V on the outer surface of the rock sample. 表孔 According to the volume V 实 and the total pore volume V on the outer surface of the rock sample 表孔 Obtain the corrected external volume V of the rock sample 外表体积 This application can provide high-precision external volume measurement results for low-porosity, dense, brittle and easily broken rocks, thereby improving the accuracy of rock helium porosity test results.

The invention belongs to the technical field of ground testing of deep space exploration equipment, and particularly relates to a multi-shaft attached percussion drilling testing platform and a testing method. The testing platform comprises an attachment testing mechanism, a controller, a bottom truss, a three-axis gantry sliding mechanism, a sensing testing mechanism and a drilling and production testing mechanism, wherein the three-axis gantry sliding mechanism, the sensing testing mechanism and the drilling and production testing mechanism are arranged on the bottom truss; the sensing testing mechanism comprises a bottom plate, a six-dimensional force / torque sensor and a tested rock sample which are sequentially arranged from bottom to top; the attachment testing mechanism is arranged at the output end of the three-axis gantry sliding mechanism and is used for attaching, pressing and testing a rock sample; the drilling and production testing mechanism is used for sampling a test rock sample; the controller is used for controlling the three-axis gantry sliding mechanism and the drilling and production testing mechanism to act and synchronously collecting and processing data of all the sensors. According to the invention, through precise motion control and multi-dimensional sensing, standardized and quantitative testing of the drilling performance of the sampling drilling machine and the adhesion performance of the adhesion mechanism is realized.

The application discloses a correction method for laser micro-area tin stone sample hafnium isotope determination, which comprises the following steps: arranging a first tin stone standard substance into a first row, arranging a second tin stone standard substance into a second row, arranging a tin stone sample into a third row, embedding them into the same epoxy resin respectively, so as to prepare a sample target; obtaining a first detection signal at a first time; obtaining a second detection signal at a second time; obtaining a third detection signal at a third time; obtaining initial hafnium isotopes in the first tin stone standard substance according to the first detection signal, obtaining initial hafnium isotopes in the second tin stone standard substance according to the second detection signal, and obtaining initial hafnium isotopes in the tin stone sample according to the third detection signal; and correcting the initial hafnium isotopes in the tin stone sample by using the initial hafnium isotopes in the first tin stone standard substance and the initial hafnium isotopes in the second tin stone standard substance, so as to obtain a correction result of the initial hafnium isotope determination in the tin stone sample.

The application provides a method and system for determining the correlation between the end face flatness of a rock sample and mechanical indexes. The method includes: preparing multiple rock samples with different end face flatness, collecting multi-dimensional flatness parameters of the samples, and measuring multiple mechanical indexes, water content, and density of the samples to generate a multi-dimensional data set; constructing a multi-dimensional input feature vector; constructing a correlation model by integrating a random forest model and a BP neural network, training the correlation model with the multi-dimensional data set as training data, and optimizing the model hyperparameters through cross-validation; constructing a differentiated correction model to correct the output of the correlation model for different lithology to obtain a mechanical index prediction curve corresponding to the multi-dimensional input feature vector of the rock sample to be tested. The method establishes a quantitative relationship between the end face flatness of the rock and the mechanical indexes, and can effectively avoid the influence of the end face flatness on the rock mechanical test.

The present invention discloses a rock sample extraction device, which comprises a downhole plate and a plurality of sampling components uniformly arranged on the downhole plate, wherein the sampling components are used for sampling rock samples in well areas with different depths, and each sampling component is used for sampling at the upper and lower ends of the same well area; each sampling component comprises anisotropic extraction cylinders arranged on the downhole plate and a power member arranged between the anisotropic extraction cylinders, and the power member drives the anisotropic extraction cylinders to perform telescopic movement in opposite directions, so that the anisotropic extraction cylinders can perform sampling operation when extending outwards.