32 results about "Mineral analysis" patented technology

An improved mineral analysis system includes mineral definitions that include not only characteristics of the minerals, but also variability in those characteristics. The variabilities allow the calculation of ranges of expected values for different quality of measurements, for example, for different numbers of x-ray counts. Match probabilities can therefore be calculated to more accurately determine the composition of a mineral sample.

The invention provides a mineral standard sample used for nanometer CT, and a preparation method and an application thereof. The preparation method of the mineral standard sample comprises the following steps: selecting standard mineral particles according to the mineral composition of a rock to be measured; respectively processing at least one of the selected standard mineral particles to form mineral sample discs; and welding one of the mineral sample discs to a pedestal, and stacking and welding all the mineral sample discs to form the mineral standard sample. When the mineral standard sample is used in mineral analysis, mineral identification is carried out by using the gray scale information of the standard mineral sample and a rock sample to make unknown mineral particles in the rock sample identified and calibrated, so the three dimensional distribution, the volume proportions and the mineral particle dimension distribution of corresponding mineral components in the rock sample are obtained. The method effectively fills up the gap in preparation methods of like standard samples, and meets urgent demands of microscopic three dimensional mineral analysis in the petroleum geology field.

The invention mainly belongs to the field of oil and gas exploration and development, and particularly relates to an oil-gas field on-site while-drilling cuttings scanning system and method. The oil-gas field on-site while-drilling cuttings scanning system comprises a sample preparation mould and a table-type mineral analysis scanning electron microscope; oil-gas field on-site while-drilling cuttings are prepared to a scanning sample through the sample preparation mould; the table-type mineral analysis scanning electron microscope comprises a secondary electronic probe, a backscattered electron probe, an energy spectrum probe and an electron microscope operation module; and the table-type mineral analysis scanning electron microscope is small in weight, small in land occupation, easy to carry and is suitable for the severe environment in a well field. According to an oil-gas field on-site while-drilling cuttings scanning method, the on-site while-drilling cuttings are fully utilized, mineral elements, mineral types and rock structures are rapidly analyzed, and lithology classification is quickly conducted; and the oil-gas field on-site while-drilling cuttings scanning method has the advantage of on-site real-time guidance drilling and oil-gas field exploration and development, limitation that a laboratory traditional mineral analysis electron microscope scanning system cannot be carried to the site for application is overcome, and the oil-gas field exploration precision and speed are improved.

The invention provides a separation method for light / heavy hydrocarbons in different occurrent states in a clay level of an argillaceous source rock. The separation method comprises the following steps: crushing a fresh part of a core of the argillaceous source rock and soaking and extracting a clay level component; carrying out Soxhlet extraction; saponifying the extraction residues by using a saponifying liquid and respectively extracting the saponified residues by using n-pentane and dichloromethane; pickling the saponified residues by using an acidolysis solution and respectively extracting the pickled residues by using n-pentane and dichloromethane; treating the pickled residues by a HF and HCl mixed liquid and respectively extracting the pickled residues by using n-pentane and dichloromethane; and respectively combining the treatment liquids and the extraction liquids and separating by column chromatography to obtain light / heavy hydrocarbons. The separation method for light / heavy hydrocarbons in different occurrent states in the clay level of the argillaceous source rock provided by the invention extremely improves the problem that light hydrocarbons are lost in other methods and can calibrate an occurrent space of hydrocarbons by combining mineral analysis.

The present invention discloses a rice producing area identification method based on mineral matter analysis technology and application, and belongs to the technical field of quality and safety of agricultural products. The method is as follows: after pretreatment of raw rices of different producing areas, mineral element content of the rice can be measured by high-resolution inductively coupled plasma mass spectrometer, the characteristics of mineral element content of the rice of different producing areas can be analyzed, a discrimination model can be built and validated, and the producing area of a to-be-tested rice can be measured by the discrimination model. The method has the characteristics of high discriminating accuracy, the accuracy rate can reach 97.8%, and the method has great significance to agricultural product quality inspection and protection of geographical indications.

The invention provides a rapid tunnel surrounding rock quartz content obtaining method and application. Mineral analysis is carried out on each collected sample to obtain the quartz content in each sample, and the point load intensity, rebound hardness and wear resistance indexes of each sample are measured; the quartz content serves as an evaluation result, the point load intensity, rebound hardness and wear resistance indexes of the sample serve as evaluation indexes, and the degree that each calculation index relies on the evaluation result is calculated to determine the index weight of theevaluation index; and an integrated evaluation model is established, trained and verified, verification is not ended unless the model satisfies the set requirements, and the model after verificationis used to calculate the content of quartz in the surrounding rocks. The method has the advantage of rapid detection.

The invention provides a TBM tunneling tunnel rock quartz content rapid test system and method. According to the actually measured quartz content and hardness and wear resistance parameters of tunnelrock, through multivariate linear regression analysis or rough set-ideal point nonlinear analysis method, a multivariate linear empirical formula or a comprehensive evaluation model based on the parameters is established, an empirical estimation formula or a comprehensive evaluation model is established, and the method can be used for rapidly obtaining the quartz content of the TBM construction tunnel rock. The method is simple in principle, economical and practical, effectively replaces an expensive and time-consuming conventional rock quartz content testing method (a mineral analysis method), and solves the problems that a TBM tunneling tunnel rock quartz content instrument is high in price and complex in testing process. According to the method, the TBM cutterhead wear information can be quickly predicted, the state of the cutter can be reasonably evaluated, and great guiding significance is achieved for TBM tunnel construction.

The invention provides an automatic control system for lithium carbonate production, comprising a mineral analyzer, a central control server, a roasting controller, a roasting device, a particle sizeanalyzer, a grinding controller, a grinding device, a first flow meter, a second flow meter and an electromagnetic valve controller. The embodiment of the invention can achieve automatic setting of the working and temperature of the roasting device, automatic setting of the grinding time of the grinding device, and automatic control of the addition of concentrated sulfuric acid in the acidification process during preparation of beta-spodumene concentrate with natural spodumene and the grinding and sulfuric acid acidification process, the operation is simple and has no error, and requirements for automatic lithium carbonate production of people are met.

The invention provides an experiment method for researching influence on CO2 flooding by highly-mineralized formation water. The experiment method includes the following steps that a slabbed core A and a slabbed core B are cut from the two ends of a rock core, the rock core is washed, dried and weighed, the rock core pore volume and the gas logging permeability are measured, the rock core is saturated, magnetic resonance imaging is detected, and flooding is carried out to obtain rock core water logging permeability; flooding is carried out, temperature and pressure are kept for placement, CO2 water and gas injection is conducted, the rock core is washed and dried, the mass, the pore volume and the gas logging permeability are measured, vacuumizing is carried out, the rock core is saturated, flooding is carried out to measure the rock core water logging permeability, and magnetic resonance imaging is conducted; a slabbed core C and a slabbed core D are cut from the two ends of the rock core, washed and dried, electron microscope scanning, surface element and rock mineral analysis are carried out on the slabbed core A, the slabbed core B, the slabbed core C and the slabbed core D, the steps 1-3 are repeated after replacing the rock core and changing the temperature and the pressure; data is collected. The influence on reservoir physical property and development parameter collection by CO2-water-rock interaction and CO2-formation water precipitation can be researched.

The invention provides a mineral standard sample for nanometer CT, its preparation method and application. The method of the mineral standard sample comprises the following steps: selecting standard mineral particles according to the mineral composition of the rock to be tested; processing the selected at least one standard mineral particle into a mineral sample disc; welding one of the mineral sample discs on the base Each mineral sample disc is stacked and welded, and the columnar sample formed is the mineral standard sample. When the above-mentioned mineral standard samples are used for mineral analysis, the gray scale information of the standard mineral samples and rock samples is used for mineral identification, so that the unknown mineral particles in the rock samples can be identified and calibrated, and then the three-dimensional information of the corresponding mineral components in the rock samples can be obtained. distribution, volume ratio occupied, and mineral particle size distribution. The method provided by the invention effectively fills the vacancy of such standard sample preparation methods, and meets the urgent demand for microscopic three-dimensional mineral analysis in the field of petroleum geology.

The invention provides a separation method for light / heavy hydrocarbons in different occurrent states in a clay level of an argillaceous source rock. The separation method comprises the following steps: crushing a fresh part of a core of the argillaceous source rock and soaking and extracting a clay level component; carrying out Soxhlet extraction; saponifying the extraction residues by using a saponifying liquid and respectively extracting the saponified residues by using n-pentane and dichloromethane; pickling the saponified residues by using an acidolysis solution and respectively extracting the pickled residues by using n-pentane and dichloromethane; treating the pickled residues by a HF and HCl mixed liquid and respectively extracting the pickled residues by using n-pentane and dichloromethane; and respectively combining the treatment liquids and the extraction liquids and separating by column chromatography to obtain light / heavy hydrocarbons. The separation method for light / heavy hydrocarbons in different occurrent states in the clay level of the argillaceous source rock provided by the invention extremely improves the problem that light hydrocarbons are lost in other methods and can calibrate an occurrent space of hydrocarbons by combining mineral analysis.

The present invention discloses a combination of two existing approaches for mineral analysis and makes use of the Similarity Metric Invention, that allows mineral definitions to be described in theoretical compositional terms, meaning that users are not required to find examples of each mineral, or adjust rules. This system allows untrained operators to use it, as opposed to previous systems, which required extensive training and expertise.

The invention discloses a system and method for analysis of Martian mineral components by using double multiplexing laser spectrum. The system includes an optical head, a short wavelength spectrometer, a medium wave spectrometer, a long wavelength spectrometer, a calibration board bracket, a calibration board, a pointing mirror bracket, a two-dimensional pointing mirror, a two-dimensional rotation control component, a pointing mirror control cable and a load controller. Based on the system, the combined detection of atom and molecular can be achieved by combined detection of laser induced plasma spectroscopy and laser Raman spectroscopy. The invention provides a double multiplexing laser spectrum detection system and method; a same pulse laser source and three frequency multiplication modules are used to realize the multiplexing of light sources; and short, middle and long wave spectrometers in the same length and the corresponding spectrum ICCD area array detectors are used to achieve the multiplexing of beam split and spectral detection. In addition, remote micro area imaging and laser self-focusing function are achieved to share a main optical path. The invention effectively expands the scope of Martian mineral analysis, and the system is compact and convenient, reduces the fluorescence interference and improves the comprehensiveness of molecular detection.

A method for mineral analysis of a sample based on detection of NQR and / or NMR signals from a particular substance within a sample includes; setting a frequency of RF pulses to be approximately equal to one of the NQR or NMR frequencies of the substance; setting a set of parameters of the RF pulses to be optimal for the substance; setting a set of receiving parameters to be optimal for the substance; tuning the probe to maximum sensitivity for the signal detected at predetermined frequency and / or to maximum power transfer efficiency for RF pulses transmitted with the probe; transmitting the RF pulses with the probe at said optimal level during a transmitting period to irradiate the sample and excite an NQR or NMR signal in the substance, if present; detecting and processing NQR or NMR signals emitted by the substance; and calculating the concentration of the substance in the sample.