64 results about "Stone sample" patented technology

A rock sample holder, an x-ray system, and methods are disclosed. The rock sample holder may include a body having a cavity extending from a first end of the body to a first position along a longitudinal axis. The first end of the body is open. The body comprises a radiolucent material. A slit is formed through a side wall portion of the body such that the slit extends from the first end to a second position on the side wall portion between the first end and the second end. The rock sample holder may further include a base attached to a second end of the body and a cushion disposed within the cavity proximate to the first position. The body and the cushion form a rock sample chamber within the cavity.

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 an experimental method and system for evaluating the sealing capability of a microcrack of wellbore annulus cement stone. The method comprises the following steps: step 1, preparing cement paste; 2, curing the cement paste to obtain a set cement sample; 3, a saline solution is prepared according to the formation water mineralization degree; 4, placing the saline solution and CO2 in a piston type intermediate container; 5, the set cement sample is saturated with saline water; step 6, pressurizing the cement stone sample saturated with the saline water to form a crack, so as to obtain the initial permeability of the cement stone sample; step 7, putting the cement stone sample subjected to fracture forming into a core holder, and monitoring the pressure of the inlet end of the core holder; when the pressure change of the inlet end of the core holder reaches an expected rising and falling trend, collecting data of the pressure of the inlet end to obtain an end point permeability; 8, if the terminal permeability is lower than the initial permeability, it shows that the set cement sample has the micro-crack self-sealing capacity. The experimental method and system simulate and measure the change of the sealing performance in the shaft direction.

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.

This invention provides a PDC single-tooth rock-breaking experimental device and a method for analyzing the rock-breaking mechanism. The experimental device includes a rock-breaking device body, a PDC tooth cutting depth adjustment mechanism, a cutting speed adjustment mechanism, and a cutting force measurement mechanism. The cutting speed adjustment mechanism can adjust the cutting speed of the rock sample; the rock-breaking device body is used to fix and install the cutting depth adjustment mechanism; the cutting depth adjustment mechanism can clamp the PDC tooth and precisely control its inclination angle and cutting depth; the cutting force measurement mechanism can monitor the cutting force on the rock sample. The method includes the following steps: setting parameters such as cutting depth, cutting speed, and inclination angle; monitoring the cutting force and recording the dynamic rock crushing process; sieving and collecting rock fragments, determining the mass fraction of different groups of rock fragments, and preliminarily determining the ductile-brittle crushing mode of the rock based on the distribution pattern of the rock fragments. This invention has the advantages of precisely controlling the cutting depth, PDC tooth inclination angle, and cutting speed.

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 present application provides a method for testing the thermal shock resistance of oil well cement stone. The method comprises the following steps: obtaining a cement stone sample; applying a preset temperature gradient to the cement stone sample; monitoring the stress change of the cement stone sample under the temperature gradient; and calculating the thermal shock resistance index of the cement stone sample according to the stress change of the cement stone sample; wherein the thermal shock resistance index is used to characterize the stress change of the cement stone sample under different temperature gradients and its resistance to thermal shock. The technical solution provided by the present application can improve the accuracy of testing the thermal shock resistance of oil well cement stone.

The invention provides a method and system for determining the incidence relation between the end face flatness and mechanical indexes of rock samples, and the method comprises the steps: preparing a plurality of rock samples with different end face flatness, collecting the multi-dimensional flatness parameters of the samples, measuring various mechanical indexes, water content and density of the samples, and generating 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 by taking a multi-dimensional data set as training data, and optimizing model hyper-parameters through cross validation; and constructing a differential correction model, and correcting the output of the correlation model through the differential correction model according to different lithology so as to obtain a mechanical index prediction curve corresponding to the multi-dimensional input feature vector of the rock sample to be tested. According to the method, the quantitative relation between the rock end face flatness and the mechanical index is established, and the influence of the end face flatness on the rock mechanical test can be effectively avoided.

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.

This application relates to the field of oil and gas technology, and in particular, to a method, device, and storage medium for determining the damage of the cement sheath in a wellbore. The method includes: obtaining a plurality of cement stone samples and their compressive stresses; determining the elastic modulus and compressive inelastic strain of each cement stone sample; determining the compressive damage factor of each cement stone sample; determining the compressive plastic strain of each cement stone sample based on the compressive inelastic strain, compressive stress, elastic modulus, and compressive damage factor of each cement stone sample; constructing a finite element model based on the structural data of the wellbore; inputting the compressive stress, compressive inelastic strain, and compressive damage factor of any one cement stone sample into the finite element model, and setting the number of cycles and the internal pressure within the cycle; and determining the compressive damage of the cement sheath and the width of the first interface micro-annulus according to the processed finite element model, so as to accurately determine the compressive damage of the cement sheath and the width of the micro-annulus, which has high practicability.

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.

The utility model belongs to the technical field of stone sample Poisson's ratio measurement, and discloses an auxiliary device for measuring the Poisson's ratio of a stone sample, so as to solve the problems that the measurement precision is influenced and the number of measurement points is small in the prior art, the device comprises an installation ring, six installation plates are uniformly distributed on the installation ring along the circumferential direction, the six installation plates are divided into three groups, each group of mounting plates are arranged oppositely, sliding sleeve frames with adjustable height positions are arranged on the mounting plates, dial gauge mounting ports are formed in the upper ends of the sliding sleeve frames, and limiting clamping caps for fixing dial gauges are movably arranged at the tops of the sliding sleeve frames. According to the rock Poisson's ratio measuring device, the multi-point precision measurement can be realized, a plurality of groups of dial indicators are arranged, a plurality of test point positions are formed by contact points of the dial indicators and a rock sample, and stress-deformation data of a plurality of different positions can be recorded and analyzed before the rock is damaged, so that the measurement precision of the rock Poisson's ratio is improved. And errors caused by measurement by using a magnetic gauge stand are avoided.

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 utility model relates to the field of geological survey, in particular to an ore sample storage box for geological survey, which comprises a storage box body, a box door is hinged to the surface of the storage box body, a storage structure is arranged in the storage box body, the storage structure comprises a partition plate, and the partition plate is arranged in the storage box body. A drawer is arranged on the surface of the partition plate, air holes are formed in the side wall of the drawer, a rotating button is rotationally connected to the outer wall of the storage box body, a threaded rod is fixedly connected to the outer wall of the rotating button, a threaded block is in threaded connection to the outer wall of the threaded rod, and a clamping plate is arranged at the bottom of the threaded block. An anti-skid pad is fixedly connected to the inner wall of the storage box body, and a disassembling assembly is arranged at the bottom of the threaded block. According to the ore sample storage device, the storage structure is arranged, so that the storage safety of ore samples of different types and different volumes is ensured, and meanwhile, the samples are stored in a distinguishing manner to avoid confusion and mutual influence.

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 utility model relates to the technical field of stone detection, and discloses a stone sample bearing device which comprises a carrying frame for placing a stone sample, positioning grooves are correspondingly formed in opposite borders of the carrying frame, bearing rods for supporting the stone sample are erected in the positioning grooves in the opposite borders, and the stone sample is placed in the bearing rods. The distance between the positioning grooves corresponds to the volume of the sample, so that the stone sample supported on the bearing rod can be placed at a preset interval. According to the utility model, stone samples can be kept at fixed intervals through the bearing rods which are arranged at intervals, so that the interval requirement of the samples is met, the problem that the stone samples are placed unstably in a traditional carrier is solved, and the accuracy of test data is ensured; by adjusting the bearing rods to be in lap joint in different positioning grooves, stone samples of different sizes can be positioned and placed, and the applicability is improved; due to the layered carrying frames, the bearing capacity of the stone samples is expanded, the test requirements of more stone samples can be met, and the test efficiency is improved.

The utility model discloses a rock and ore sample storage box which comprises a box body assembly, a storage box body, a storage cavity formed in the storage box body, and a top cover hinged to the top end of the storage box body. A clamping assembly, comprising a mounting groove formed in the inner wall of the storage cavity, a threaded rod rotationally mounted on the mounting groove, an adjusting knob fixed to the outer end of the threaded rod, a guide rod fixed to the inner wall of the mounting groove, a connecting column connected to the guide rod in a sleeving mode and engaged with the threaded rod at the same time, and a clamping plate fixed to the connecting column. The air bag is fixed to the clamping plate, the air injection pipe is connected to the air bag, and the plug is matched with the air injection pipe. A locking assembly; the air bag can play a certain buffering role, and finally the top cover is closed, so that the rock ore is wrapped and clamped, and the rock ore is prevented from being damaged due to shaking.

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.

The utility model discloses a portable geological rock sample collector. Comprising a supporting ring, a stand column fixedly connected with the supporting ring, a sliding plate slidably connected with the stand column, a driving part arranged on the stand column and used for driving the sliding plate to slide in the length direction of the stand column, a motor fixedly connected with the sliding plate, a drill rod coaxially and fixedly connected with an output shaft of the motor and a drill bit arranged at the lower end of the drill rod. The supporting rods are evenly distributed on the lower end face of the supporting ring in the circumferential direction and fixedly connected with the supporting ring, the ground grabbing pieces are arranged at the lower ends of the supporting rods and used for preventing the supporting rods from moving upwards when rock samples are drilled, the supporting ring is a horizontally-arranged annular body, the stand column is parallel to the axis of the supporting ring, and the sliding plate is perpendicular to the axis of the supporting ring. An output shaft of the motor is parallel to the axis of the supporting ring. According to the utility model, the feeding of the drill bit is kept without being pressed by the weight of a human body in the drilling process, so that the labor intensity of workers is greatly reduced.

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.