100 results about "Detritus" patented technology

The invention discloses a method for analyzing a sedimentary basin object source based on the detrital zircon age, and belongs to the field of analysis and detection, and the method comprises the following steps: S1, uniformly sampling in a known well and a potential object source area of a target layer to obtain a rock sample; s2, slicing the obtained rock sample to obtain a plurality of common slice samples and casting body slice samples, then performing component identification on slices, and analyzing identification results; s3, performing statistics on sandstone debris components of the Benxi group sample in the research area, and drawing a lithologic triangular diagram; s4, drawing a Qt-F-L diagram according to the debris component data of the research area; s5, representative samples in the research area are selected for heavy mineral analysis; s6, selecting representative samples in the research area, and measuring major elements and rare earth elements in the representative samples to analyze the material source supply condition of the research area; s7, performing U-Pb chronological characteristic analysis on the fragment zircon of the sample; and S8, performing U-Pb dating analysis on the fragment zircon of the sample.

The invention discloses a method for determining the shale content of tight sandstone, and relates to the technical field of exploration and research of tight rock oil and gas reservoirs. The method comprises the following steps: identifying a rock slice identification photo by using a computer image identification method, obtaining the area percentage of debris particles with the diameter greater than a set threshold value in the slice identification photo, and then calculating the area percentage of argillaceous particles in the slice identification photo; according to the area percentage of the argillaceous particles and the corresponding times of the polarizing microscope, displaying the argillaceous particles in a rectangular coordinate system in a scatter mode; fitting all scatter points by using a nonlinear least square method, and establishing a shale content volume percentage change relation curve under different objective lens multiples of the polarizing microscope; and solving the curvilinear equation, and calculating the shale content of the sample by using the curvilinear equation. According to the method, the error caused by the fact that the shale content is calculated by an eye estimation method singly through a slice identifier is avoided, and the analysis result is more consistent with the real content of the sample, so that the accuracy of the shale content determination by an image method is greatly improved.

The invention provides a method for carrying out paleogeography reconstruction by using detrital zircon age space-time distribution characteristics. The method comprises the following steps: obtaining detrital zircon age data; sorting and analyzing the obtained fragment zircon age data to obtain age distribution characteristics of the group of data; grouping according to regional or stratigraphic times, and determining a main age distribution interval; obtaining age data and proportion of a single sample in each main component; drawing spatial distribution of main components of all samples in the age interval; and according to the obtained detrital zircon age space distribution diagram, in combination with the zircon age characteristics of the potential source area, detrital material source system analysis is carried out, and paleogeography reconstruction is realized, so that the spatial and temporal distribution characteristics of detrital zircon age data can be reflected more accurately, the evolution rule of detrital material sources in space along with time is effectively described, and the reconstruction efficiency is improved. The paleogeography pattern is reconstructed, and a reliable basis is provided for research of important geological events.

The sampling device comprises a handle, first connecting columns are symmetrically and fixedly connected to the lower portion of the outer surface of the handle, the ends, away from the handle, of the two first connecting columns are jointly and fixedly connected with a sampling connecting structure, and a sampling structure is arranged on the inner surface of the sampling connecting structure; and a pedal structure fixedly connected with the sampling connecting structure is arranged on the outer surfaces of the two first connecting columns. According to the sampling device for ecological slope treatment, debris such as vegetation and insects around the sampling barrel is treated through cooperation of the sampling connecting structure and the sampling structure, and the situation that broken insect remains or leaves in a sample pollute the sample and a final detection result is obtained is avoided; the sampling connecting structure is twisted through the handle, so that a soil sample in the sampling barrel is separated from a soil layer, the sampling barrel carries the sample to be separated from the soil layer, and rapid disassembly is achieved through cooperation of the connecting assembly and the sampling barrel.

The invention discloses a valley-type ice rock collapse clastic flow disaster chain danger range prediction method, system and device and a storage medium, and belongs to the field of clastic flow disaster prevention and control, and the method comprises the steps: obtaining the average width of a valley; determining the volume and the ice content of the hidden danger body; the ratio H / L of the predicted vertical height difference H to the horizontal distance L in the whole movement process of the ice rock collapse clastic flow is obtained; the ratio Ht / Lt of the vertical height difference Ht and the horizontal distance Lt from the position of the hidden danger body to the position of each point of the gully is obtained, and when the first value smaller than H / L appears in the Ht / Lt, the position is determined to be the maximum danger range boundary of the ice rock collapse clastic flow disaster in the gully. The invention provides a set of efficient, quantitative and spatialized scheme, the static distribution information of the ice rock clastic flow hidden danger can be accurately quantified into visual and available geographic space information of the maximum danger range in combination with the dynamic influence of the valley terrain, and the risk assessment and emergency decision of ice rock collapse clastic flow disasters can be more scientifically supported.

The invention provides an automatic dangerous rock identification method and system based on a machine vision system, and relates to the technical field of engineering mechanics, and the method comprises the steps: obtaining dangerous rock region image data containing disturbance amplitude and frequency, obtaining disturbance stress data, and carrying out the comprehensive analysis to calculate a rockburst failure load; the method comprises the following steps: establishing a relationship among a dynamic disturbance load, a stress gradient, a rockburst failure load and rockburst strength, calculating a stress-strength ratio and establishing a relationship between the stress-strength ratio and rockburst intensity, then extracting deformation and debris granularity characteristics, comprehensively generating a dangerous rock index, setting a safety threshold, and finally comparing the dangerous rock index with the safety threshold and sending out an early warning. According to the method, the image data, the high-resolution imaging equipment, the stress sensor and the numerical simulation method are utilized, automatic dangerous rock identification is achieved, the rockburst risk is effectively predicted, and regional safety is ensured.

The present invention provides a method, system, equipment and storage medium for chemical phase division of lacustrine mud shale, which belongs to the field of petroleum exploration and development geology. Element data is obtained by collecting lacustrine mud shale samples, and the element data is processed to remove trace elements that are greatly affected by terrigenous debris. The principal component analysis (PCA) method is used to screen the features that have a greater impact on the chemical phase division to construct a feature vector, and the clustering algorithm is used to perform cluster analysis on the feature vector to obtain the chemical phase type. The chemical phase prediction model is trained using the random forest algorithm to automatically and efficiently perform the chemical phase division of lacustrine mud shale, and finally the chemical phase division results are applied to the exploration and development of shale oil and gas to identify and evaluate the oil and gas resource potential in lacustrine mud shale.

The invention discloses geochemical sampling equipment and a using method thereof, and relates to the technical field of geological sampling, the geochemical sampling equipment comprises a sampling device base, the sampling device base is placed on geological soil, a lifting system is installed on the sampling device base, the lifting system is connected with a driving system, and the driving system is connected with the sampling device base. The bottom end of the driving system is connected with a hand-operating mechanism, a planetary gear box body mechanism is movably connected in the hand-operating mechanism, the output end of the driving system penetrates through the hand-operating mechanism and is in transmission connection with the planetary gear box body mechanism, and the output end of the bottom of the planetary gear box body mechanism is connected with a sampling drill bit. A collecting mechanism is connected into the planetary gear box body mechanism, and a cleaning mechanism is further connected into the planetary gear box body mechanism. According to the equipment, the planetary gear box body mechanism and the cleaning mechanism are combined, so that when the sampling drill bits cut soil, chippings can be collected and cleaned synchronously, and the collecting mechanism is of a surrounding type cleaning structure.

The invention is a flow-through flow-through filter that can separate raw water and / or sewage to filtered stream, fine particle stream and grit stream in one hydraulic device. For raw lake and / or canal water intake application, the flow-through filter is placed inside a chamber box that is mounted on a water intake rack structure or diversion canal. The invention filters debris and organisms to prevent biomes formation in pumps and waterlines that delivers raw water to a water treatment plant. The flow-through filter withdraws flows from a raw water body without taking defined sediment, floating debris and target aquatic biomes and eliminates the need of discharging remnants to a sewage system.For wastewater treatment, the flow-through filter is installed over a wet well after the headwork rack and may replace the grit removal, primary clarifier, and the fine screening. The flow-through filter requires a much smaller footprint of the area and / or enclosed building that requires smaller odor control. There is a substantial cost saving of using one device and replaces grit removal, primary basin, and fine screening.

The method is a quantitative sedimentary basin feature source analysis method based on detrital zircon U-Pb age data, results of quantitative analysis and cumulative age curve analysis of a multi-dimensional calibration method (MDS) are fully utilized, differences among different samples are compared more accurately, and the method has remarkable advantages in quantitative treatment of a large number of samples. The method comprises the following specific steps: (1) collecting and integrating U-Pb age data of chipping zircon from different studies, and preprocessing the U-Pb age data; (2) performing statistical analysis and visualization processing in various forms on the U-Pb age data of the chipping zircon; (3) analyzing the contribution rate of each zircon age to sample age interpretation, and quantitatively evaluating the importance of different zircon ages in material source analysis; (4) quantitatively comparing the similarities among the samples by adopting a multi-dimensional calibration method; and (5) analyzing the difference of different source-sink system construction backgrounds in the sedimentary basin by drawing a chipping zircon cumulative age curve and the difference distribution between the zircon crystallization age and the deposition age in the sediment, and further explaining the dynamic mechanism of the construction unit and the source-sink system on the periphery of the construction unit.

A method for identifying deepwater gravity flow causes based on directional arrangement of debris particles relates to the technical field of petroleum and natural gas exploration and development, and comprises the following steps: analyzing deepwater gravity flow deposition cause mechanisms by combining actual geological data of a to-be-detected area, selecting sandstone samples of different gravity flow cause mechanisms to obtain slice images, and preprocessing the slice images; performing quantitative statistics on the long-axis direction distribution conditions of the debris particles in the processed image of the sample slices, establishing a relationship between the long-axis direction distribution conditions of the debris particles of different sample slices and deepwater gravity flow deposition causes, and collecting the sample slices in other areas to perform statistics on the long-axis direction distribution conditions of the debris particles of the sample slices; obtaining deepwater gravity flow deposition causes of samples in other areas; according to the method, through quantitative statistical analysis of the blocky sandstone debris particles in the long axis direction, the relation between debris particle distribution and a gravity flow cause mechanism is established, the problem that the macroscopic characteristics of the blocky sandstone cannot reflect the gravity flow deposition cause is solved, and the time and cost required by related experimental analysis are reduced.

The invention discloses an enteromorpha-microalgae competitive growth process simulation method, and relates to the technical field of marine ecology and environmental science. The method comprises the following steps: taking remote sensing image monitoring data of a research area, constructing an enteromorpha green tide coverage area three-dimensional space-time distribution matrix, and determining the distribution range of the matrix; dividing and numbering according to the size of a preset grid unit to obtain an enteromorpha block and a spatial position, and performing dimension reduction processing; the method comprises the following steps: dividing a research area into three subareas, and respectively constructing nutritive salt-enteromorpha-microalgae-debris ecological dynamics box-type models; determining a cross-regional shunting coefficient according to the drifting speed of the enteromorpha between the partitions, and connecting the three box-type models in series; and reconstructing and simulating a time-varying simulation value of the enteromorpha coverage area by using the serially connected models, determining an environmental element modulation effect value, and further determining the key control degree of each environmental element on the competitive growth process of the enteromorpha.

The invention provides an arid region mountain vegetation bearing capacity assessment method and device, a medium and equipment, and the method comprises the steps: obtaining the rainfall capacity, the soil water quantity and the underground runoff capacity of a sample site in a monitoring time period, the underground runoff volume comprises the upper boundary runoff volume and the lower boundary runoff volume of a bedrock weathered layer corresponding to the sample site; estimating the total amount of absorbable water according to the rainfall, the soil water amount and the underground runoff; and according to the total absorbable water amount and the vegetation water demand corresponding to the vegetation, generating a corresponding vegetation bearing capacity evaluation result. According to the method, a total moisture mode is integrated, thin film water and weathered debris water storage in soil are comprehensively considered, a method system for evaluating the vegetation bearing capacity of the mountain land is provided, total moisture dynamic modes of different soil types can be accurately captured, a vegetation bearing capacity evaluation result is obtained, and scientific and technological support is provided for ecological restoration, vegetation configuration and water resource management of an arid region.

This invention relates to the field of oil and gas exploration technology research, specifically to a method for determining the initial porosity of mixed sedimentary rocks. The method includes the following steps: establishing a classical porosity model for the mixed sedimentary rock reservoir to obtain the initial porosity formula for terrigenous clastic sediments; determining the effective storage of snail-like biocavities in the mixed sedimentary rock reservoir through simulation experiments, thereby obtaining the initial porosity of bioclastic sediments in the mixed sedimentary rock; and combining the initial porosity of terrigenous clastic sediments and the initial porosity of bioclastic sediments to obtain the initial porosity of the mixed sedimentary rock. Compared with existing methods, the calculation method of this invention includes biocavity porosity, and particularly, comprehensively considers the influence of terrigenous clastic sediments and bioclastic sediments during deposition, effectively increasing the accuracy of the initial porosity calculation for mixed sedimentary rocks.

The invention relates to the field of organic matter-rich shale mineral type and cause research, and discloses a shale clay mineral composition quantitative recovery method, which comprises: S1, cutting and polishing a shale sample, and carrying out argon ion polishing; s2, based on SEM-EDS combined analysis, collecting morphology and energy spectrum characteristics of clay minerals with different causes, and constructing a clay mineral cause standard library; s3, AMICS analysis parameters are optimized, and 2-4 vision fields are selected for scanning to generate original data; s4, processing the scanning data, calculating the mineral content, and performing cross validation with an XRD-Rietveld result; and S5, in combination with a diagenetic evolution sequence and a mass conservation principle, inverting the contents of original montmorillonite and clastic clay minerals. According to the method, clay minerals of different causes are distinguished through the SEM-EDS double-constraint model, AMICS parameters are optimized, the recognition precision is improved, and quantitative recovery of original components is achieved in combination with diagenetic inversion.

The present application belongs to the technical field of environmental monitoring, and discloses a kind of analysis method of total carbon lateral transport flux of mangrove ecosystem.The analysis method provided by the present application establishes monitoring target area at the connection of mangrove tidal ditch and adjacent water body and obtains corresponding hydrological parameters and chemical parameters at regular time, to realize the monitoring of lateral transport flux of non-large plant detritus carbon, while collecting large plant detritus samples and measuring the amount of large plant detritus carbon, to realize the monitoring of lateral transport flux of large plant detritus carbon, by quantifying the lateral transport of different forms of carbon and performing weighted operation, so that the obtained total carbon lateral transport flux of mangrove ecosystem has higher accuracy and certainty, can well realize long-time sequence full-form continuous observation of carbon lateral transport of mangrove ecosystem, and has good application prospect.

The invention relates to the technical field of cleaning, in particular to a deslagging method and a crawler-type remote control car. The slag removal method comprises the following steps that the cutting device, the prying device and the sweeping device are installed on the moving platform; driving a cutting device to cut the sediment attached to the surface of the base body through the moving platform so as to form a gap; the moving platform drives the prying device to be inserted into the gap, and the cut sediments are prying away from the surface of the base body where the sediments are attached; the moving platform drives the cutting device and the prying device to repeatedly cut and pry the sediment; the moving platform drives the cleaning device to clean and collect chippings generated in the cutting and prying process; the whole deslagging process is more systematized and coherent through the clear operation procedures of cutting, prying and repeated moving, invalid operation and long-time waiting between procedures are avoided, the overall cleaning efficiency is improved, and the cleaning safety is improved by integrating a plurality of cleaning devices to the mobile platform capable of being remotely operated.

The present invention relates to a method for classifying the genetic types of seepage barriers in deep-sea waterways, and belongs to the technical field of geological exploration for oil and gas field development. The present invention discloses a method for classifying the genetic types of seepage barriers in deep-sea waterways, comprising obtaining the sedimentation process, scale, lithology, distribution location, and gravity flow genetic type of the deep-sea waterway; classifying the genetic types of the seepage barriers in the deep-sea waterway into landslide-induced seepage barriers, debris flow-induced seepage barriers, low-density turbidite-induced seepage barriers, and semi-pelagic sediment-induced seepage barriers based on the gravity flow genetic type of the deep-sea waterway; and further finely classifying the genetic types of the seepage barriers in combination with the lithology, scale, distribution location, and sedimentation process of the seepage barriers. The present invention fills the gap in the classification scheme of the genetic types of seepage barriers within deep-sea waterways, thereby providing important geological basis and guidance for the evaluation of the continuity and connectivity within the reservoirs of deep-sea waterways.

Methods and tools to identify a type of sedimentary system from an XRD pattern. The method includes applying x-rays to a sample to obtain diffraction pattern data, and calculating a March-Dollase preferred orientation factor of a crystallographic plane of the sample based on the diffraction pattern data. The method further includes classifying the calculated March-Dollase preferred orientation factor to identify a type of clastic sedimentary system corresponding to the sample. A rapid sediment analyzer tool includes an X-ray diffraction device and an application having a March-Dollase preferred orientation factor calculator and a classifier. The display device is configured to display the identified type of clastic sedimentary system.

This utility model relates to a fountain structure for ecological restoration of eutrophication in a landscape lake, including a water inlet tank. A filter screen is installed on the inner wall of the water inlet tank. Multiple water inlets are opened on the outer surface of the water inlet tank, and multiple water inlets are opened on the upper surface of the water inlet tank. A protective box is installed on the upper surface of the water inlet tank, and a first motor is installed on the inner bottom wall of the protective box. This utility model, through a dual composite water inlet structure of water inlets and water inlets, combined with the filter screen installed on the inner wall, can intercept large particles of debris such as aquatic plants and large-diameter organic debris, avoiding the problem of device clogging. The first motor drives the rotating rod and stirring rod to rotate at high speed, and the resulting vortex can disperse algae clusters and fine organic debris in the water inlet tank, preventing them from depositing at the bottom of the water inlet tank to form an anaerobic sediment layer. This design avoids secondary pollution and also prevents deposited debris from being carried into the subsequent biological treatment stage by the water flow, ensuring the stability of the microbial degradation environment.

The utility model discloses a grinding machine cutting fluid sedimentation circulating device which comprises a plurality of sedimentation tanks which are sequentially distributed in a step shape in a descending mode, each sedimentation tank comprises a tank body and an overflow bevel opening, each tank body is cubic, an opening is formed in the upper end of each tank body, one end of each overflow bevel opening is communicated with the opening, and the other end of each overflow bevel opening is communicated with the corresponding sedimentation tank. The other end of the overflow bevel opening is far away from the tank body and located over the opening of the adjacent sedimentation tank, the cover plate can seal and cover the opening, a filtering opening is formed in the cover plate, and the cutting fluid sequentially flows through the sedimentation tanks after passing through the filtering opening. And the overflow bevel opening ensures that the overflow cutting fluid of the upper-stage sedimentation tank enters the lower-stage sedimentation tank, so that the loss of the cutting fluid due to a gap between adjacent sedimentation tanks is avoided. The cover plate is at least arranged at the sedimentation tank at the uppermost stage, large fragments are prevented from entering the sedimentation tanks, and if the sedimentation tanks are exposed for use, the cover plates can be arranged on the sedimentation tanks in a matched mode, and sundries or personnel are prevented from falling off.

The invention discloses a sediment source tracking method for numerical simulation of clastic sedimentary rock deposition, and the method comprises the following steps: S1, data collection: the geological data of a research area are widely collected, the topographic data cover a high-precision digital topographic measurement result, and the accurate mastering of topographic relief is ensured; geochemical data of the rock sample are obtained through an advanced analysis instrument in a professional laboratory, and the accuracy of element analysis is guaranteed; deposited layer thickness data are explored by means of various exploration means. According to the established numerical model, various factors in the sediment carrying and depositing process are comprehensively considered, the movement track of the sediment can be simulated more truly, the tracking precision is improved, refined tracking of the sediment source is achieved through multi-level tracer system construction and tracer dynamic updating management, and the tracking precision is improved. The source and movement history of the sediment can be better reflected, and the advantages of the method in the aspects of accuracy, efficiency and reliability are ensured through strict effect evaluation.

The invention relates to the technical field of geology and sedimentary data analysis, in particular to a sedimentary rock particle analysis method and system based on an opencv visual library. The method comprises the following steps: firstly, acquiring a high-resolution digital image of a sedimentary rock sample, and preprocessing to enhance the characteristics of clastic particles; processing the image by using an opencv library, automatically identifying and segmenting a single debris particle, and calculating the equivalent diameter of the single debris particle; finally, an analysis report containing particle distribution and particle size statistical information is automatically generated. According to the method, image acquisition, processing, analysis and report generation are integrated into a continuous automatic process, a traditional manual microscope observation and manual measurement mode is replaced, the analysis efficiency is remarkably improved, and the method is suitable for large-scale sample processing. Recognition and measurement are executed through a standardized algorithm, subjective errors are effectively reduced, objectivity and consistency of analysis results are guaranteed, and an efficient and reliable technical means is provided for sedimentary rock granularity analysis.

The present application relates to a microfossil extraction system based on fluid control, comprising an extraction system body, a maintenance assembly is clamped on the top of the extraction system body, and a dredging assembly is fixedly connected to one side of the extraction system body; the maintenance assembly comprises a top cover and a threaded rod, the top cover is clamped on the top of the extraction system body, and the threaded rod is threadedly connected to one side of the extraction system body. The microfossil extraction system based on fluid control, the dredging assembly can remove the blockage such as sample debris and clay deposits at the fluid pipeline and discharge port in the device, avoid the decrease of fluid flow rate caused by blockage, prevent the target microfossil from being stranded and damaged at the blockage, ensure the stability of fluid circulation in the extraction process, ensure the smooth discharge of waste residues, reduce manual intervention in dredging operation, reduce operation strength, avoid local wear of the system caused by blockage, improve the smoothness and reliability of system operation, and provide protection for efficient microfossil extraction.

The present invention comprises the deployment of a product known as RubisCO Climate Vaccine® or simply RCV which contains a specialised adapted culture of psychrophile algae and accelerators. This RCV is inoculated into targeted tropospheric clouds. The cumulatively large air-liquid optical interface area of clouds enables conditions for potential exponential photosynthetic algal growth and replication during which carbon dioxide is processed and oxygen released directly in the troposphere. Optimal inoculation sites are determined by altitude, humidity, temperature, weather patterns and predicted direction and duration of travel for precipitation, The biomass produced in this process is intended to be precipitated over mid-ocean where it is sequestered within natural ocean food chains or sedimented as detritus essentially permanently. This nature-based solution through repeated deployments offers a feasible scalable pathway toward potential climate change reversal within a decade with minimal or no adverse environmental impact.

The invention relates to the field of underground water collection, in particular to an underground water collection device for mining area geological exploration, underground water in a sampling barrel needs to be quickly distinguished by detection personnel, sampled water is filtered out from ore, the operation affects sampling and collection of the detection personnel on the underground water, and the underground water sampling efficiency of operators is reduced. The underground water in the inner cylinder and the underground water in the sampling cavity are distinguished, loose and attached particles such as sand, silt and mineral debris are removed through instantaneous movement of the filtering part, and the requirement that the sampling time needs to be excessively prolonged due to the fact that the flow in the sampling cavity is too low is reduced.

The invention provides a naming method for salt lake mixed rock. The naming method comprises the following steps: carrying out rock division by using terrestrial clastic particles, carbonate particles and miscellaneous bases; using 50% as a boundary to distinguish siltstone and limestone; according to a sedimentary structure, the land-derived debris particle component is divided into a stratified structure, a blocky structure, a deformed structure and a wave-formed staggered bedding, siltstone is taken as a basic name when the land-derived debris particle component is larger than 50%, silty sand is taken as a basic name when the land-derived debris particle component is 25%-50%, and silty sand is taken as a basic name when the land-derived debris particle component is 15%-25%; dividing the lithofacies by taking the component characteristics and sedimentary structure characteristics of the rock as a division basis according to the conditions of the rock core and the slice; salt lake lithofacies are divided into three major classes, namely siltstone facies, granular limestone facies and marlstone facies, and are subdivided into ten lithofacies subclasses. The method provides a standardized new thought for lithofacies division in a salt lake deposition system, a standard reference is provided for lithofacies naming through outcrop observation, and a lithofacies division standard is formulated according to the scheme according to the deposition structure, the component content and the like.

The invention belongs to the technical field of shale oil and gas exploration and development, and discloses a method for quantitatively characterizing the particle size of clastic particles of clastic rock based on a CT scanning structure image. The method comprises the following steps: firstly, acquiring a geological environment of target layer rock deposition diagenesis, determining image acquisition parameters, and performing multi-scale image acquisition to obtain a grayscale image; then obtaining characterization parameters by using an equivalent sphere algorithm, and constructing a digital model according to a screening standard; building a standard model and a digital result model by means of machine learning; and finally determining a hydrocarbon reservoir dominant reservoir and a fractured target layer section. According to the method, by means of multi-scale image acquisition, machine learning and the like, the accuracy of the three-dimensional digital model of the size and structural characteristics of the clastic particles of the clastic rock is improved, the exploration and development conditions of oil and gas can be predicted more accurately, the exploration and development efficiency is improved, the cost is reduced, and the problem of inaccurate measurement in the prior art is effectively solved.

The present invention relates to a method, apparatus, device, and storage medium for extracting sediment particle size secondary distribution. The method comprises: establishing a sediment particle size distribution model that integrates two probability density functions based on frequency data of the sediment particle size distribution; obtaining sediment particle size distribution model parameters based on the sediment particle size distribution model that integrates the two probability density functions; and determining particle size secondary distribution statistical parameters based on the sediment particle size distribution model parameters. The present invention solves the existing problem of extracting detrital sediment particle size secondary distribution, improving the accuracy and effectiveness of particle size secondary distribution extraction.

The application discloses a kind of marine mining area geological survey columnar sediments cutting sampling device of sampling device technical field, including mounting frame, support leg, drive drill rig;When the present application is surveyed and sampled to the geology of marine mining area, utilize rotating column and cleaning tooth, rotating column and cleaning tooth can be rotated under the drive of silt and debris, the mud discharge effect of drill bit can be increased by rotating column rotation, avoid silt and debris will gather and adhere in the gap between multiple broken teeth, and cleaning tooth can stir and clean silt and debris that have adhered between multiple broken teeth, so that silt and debris adhered between broken teeth can be stripped and flow with water flow, avoid multiple broken teeth between there can be silt and debris adhered, and utilize flushing hole to flush the gap between broken teeth, cooperate with the stripping of silt and debris between broken teeth by cleaning tooth, can further remove the debris remaining between broken teeth.