135 results about "Denudation" patented technology

The invention provides a method and device for determining a sedimentary stratum ancient landform. The method comprises the steps that objective horizon obtained in advance is divided according to the third-order sequence division mode in the sequence stratigraphy theory, and a sequence stratigraphic framework of the objective horizon is built to determine the studying sequence; the horizon, in accordance with the preset requirements, in the studying sequence is selected as restoring horizon; the thickness of the restoring horizon is obtained according to the top boundary and the bottom boundary of the restoring horizon; decompaction treatment is performed on the thickness of the restoring horizon to determine the original sedimentary thickness; the sedimentary stratum ancient landform is determined according to the mirror-image relationship between the original sedimentary thickness and the ancient landform. According to the method and device for determining the sedimentary stratum ancient landform, the condition that a denudation phenomenon may exist in the objective horizon is considered, the sequence stratigraphic division is performed on the objective horizon, a selection method of the restoring horizon is discussed under the constraint of the sequence stratigraphy theory to obtain the accurate stratum thickness used for ancient landform restoring, and therefore the accuracy of ancient landform restoring is improved.

The invention relates to an ethylene-propylene-diene monomer(EPDM) rubber heat-insulating material with a ceramifiable ablation carbon layer, which is composed of 100 of EPDM, 5-50 of strengthening agent, 5-15 of organic fiber, 8-15 of tackifying resin, 4-15 of plasticizer, 8-20 of fire retardant and 3-12 of other auxiliary agent. According to the invention, a low melting point silicate substance such as montmorillonite and mica powder is introduced in an EPDM heat-insulating material formula, by using the characteristics of meltable performance at high temperature, a viscous liquid is generated for bonding the cracked carburization zones through physical crosslinking effect, and thereby a large solid particle network structure is formed, capability of the carbon layer for resisting volatilization internal stress of pyrolysis gas and erosion external stress of gas flow can be enhanced, denudation and shedding of the carbon layer can be reduced, and performances of anti-ablation, anti-erosion and characteristic signal transmitance of the EPDM heat-insulating material can be effectively increased. The heat-insulating material can be used for inner heat insulation of an engine and also can be widely used for producing ceramifiable wire and cable compounds and other places which requires fireproofing flame retardation.

The invention belongs to the technical field of water diversion vertical shaft defect detection, and discloses a water diversion vertical shaft defect detection method based on a three-dimensional laser scanning technology. The method comprises the following steps: acquiring original point cloud data of a water diversion vertical shaft through three-dimensional laser scanning and preprocessing theoriginal point cloud data; acquiring complete point cloud data of the water diversion vertical shaft through point cloud registration; extracting a central axis of the water diversion vertical shaftto obtain a section; performing convergence analysis of the water diversion vertical shaft; performing radial deformation analysis of the water diversion vertical shaft; performing slab staggering detection of the water diversion vertical shaft; and performing denudation extraction detection. According to the water diversion vertical shaft defect detection method based on the three-dimensional laser scanning technology provided by the invention, the problem that water diversion vertical shaft defects are difficult to be detected in the prior art is solved, and the defect detection of a vertical shaft section of a water diversion power generation system of a large hydropower station can be realized, so that potential safety hazards of the vertical shaft section of a water diversion tunnel can be timely troubleshot, and a powerful guarantee is provided for the safe operation of the hydropower station.

The invention discloses a strata denudation amount recovery method. The method comprises the following steps of carrying out a data acquisition step: acquiring a strata thickness and a strata age of each layer system of a position to be analyzed; carrying out a settlement model establishment step: constructing a settlement model of the position to be analyzed according to the strata thickness and the strata age; carrying out a denudation amount recovery step: calculating an accumulative deposition thickness of the position to be analyzed according to the settlement model and the strata age, and calculating the strata denudation amount of the position to be analyzed according to an accumulation thickness and a strata thickness. The method is suitable for a multi-period settlement-uplifting and multi-period burying-denudation long-term development evolution deposition basin, excessive analysis and test cost does not need to be spent, and the method is not limited by a sample rock type and a stratigraphic buried depth and possesses good enforceability, objectivity and reliability.

An early-strengthening grouting material for the back liner of tunnel to resist against dispersing in water and denudation is proportionally prepared from powdered coal ash, slag, steel dregs, meta-kaolin, sodium fluorosilicate, stellite, hydroxyethyl methylcellulose, sand, water, and water glass solution. Its preparing process is also disclosed.

The invention discloses a method for simulating deposition on the basis of deposition process control of reference planes. The method includes analyzing deposition environments of deposition zones by the aid of well logging, mud logging and rock core information and determining change conditions of the reference planes and ancient landform conditions by the aid of burial history information; inputting ancient landforms into hydrodynamic models as initial landforms according to ancient landform analysis, simulating and reconstructing hydrodynamic characteristics of research zones, simulating and reconstructing transportation and deposition of sediment on the basis of hydrodynamic research according to sediment transport and diffusion equations, constraining deposition and denudation of deposits by the aid of the reference planes on the basis of transportation and deposition of the sediment, superposing deposition and denudation of the deposits on the initial landforms to be used as landforms for next simulation so as to carry out cyclic processes for simulating and reconstructing deposition. The method has the advantages that conditions of conditions of the reference planes are considered in simulation processes, and accordingly deposition at basin level can be simulated; the method is short in simulation time, and correction can be repeatedly carried out until requirements of geological characteristics are met.

The invention discloses a method for quantitatively recovering carbonate rock stratum denudation quantity, comprising steps of performing system sampling on the field outcrop and corestone, performing analysis and measurement on the conodont to form a conodont sequence, forming a complete conodont sequence plate in a research area, performing conodont sequence comparison to determine a stratum deletion region and a stratum non-deletion region, sorting out single-well GR curves of the stratum deletion region and the stratum non-deletion region, performing Fourier changing on the GR curve which has gone through the non-deletion region decomposition to carry out time-frequency transformation so as to obtain the frequency of gyration of different levels, determining gyration of various levels to determine gyration thickness of the corresponding level, determining stratum gyration number of various levels, determining complete stratum depositing time, performing calculation on the -deletion region to obtain the gyration frequency, rotation time and rotation thickness of various levels, utilizing the ratio of the non-deletion complete depositing time to the deletion region alternative level gyration time to obtain an original stratum thickness and performing difference calculation on the original stratum thickness and the current residual thickness.

The invention provides a rotary channel type laser denudation pool, which at least comprises an outer cavity and a sample seat installed in the outer chamber, wherein the outer cavity is hollow, an air inlet and an air outlet are formed in the side wall of the outer cavity, and a slot and a top cover are arranged at the top of the outer cavity; an analysis window is arranged on the top cover; the sample seat is in the shape of a flat cylinder and is composed of a seat of samples to be measured and a standard sample seat; a rotating handle is arranged on the side wall of the outer cavity, and a rotary supporting base is arranged at the bottom of the outer cavity, is connected with the rotating handle through a transmission component and can be driven by the rotating handle to rotate. The rotary channel type laser denudation pool provided by the invention can be used for significantly reducing the sample change efficiency, and eliminating the position effect of a common denudation pool in an analysis process; an analysis volume in the practical analysis process is small, a memory effect is very low, and a single-pulse cleaning time is shorter than 1s; a standard sample and a sample to be measured can be quickly positioned; cross contamination on the surfaces of analysis samples can be avoided.

The invention provides a method and device for reconstructing lithofacies paleogeography. The method includes the following steps that: the exploration data of strata are obtained, stratum denudation and lacuna recovery are performed on the strata according to the exploration data, the thickness of strata which have been subjected to exposure denudation transformation is recovered, wherein the exploration data at least contain outcrop data, drilling data and seismic data; spatial homing is performed on the distribution and thickness of each stratum according to a volumetric balance principle, so that true distribution features of each stratum in the depositional stage can be determined; spatial homing is performed on lithological characteristics and sedimentary facies in drilling and outcrops according to the true distribution features of each stratum in the depositional stage; a recovered lithofacies paleogeographic map is constructed according to a regional background based on the lithological characteristics and sedimentary facies after spatial homing; and based on a tectonic evolution process, the distribution rule features of ithofacies which have been subjected to a plurality of stages of diastrophism according to the recovered lithofacies paleogeographic map by using sedimentation process forward modeling.

The invention relates to an unconformity stratum denudation amount recovery method and belongs to the field of geological structure evolution research and oil gas resource quantitative evaluation. According to the invention, by use of sound wave time difference data corresponding to a mudstone well segment of each single well in a target area with a denudation amount, logarithmic relations between unconformity upper and lower stratum mudstone well segment embedment depths and sound wave time differences are established, compacting features of old strata below an unconformity before denudation are determined, compacting trends of stratum mudstones below the unconformity are extended upwards to a paleo-ground surface, and thus a stratum denudation amount at the unconformity is determined. According to the invention, the recovered denudation amount has a good positive correlation relation with paleotopography, the recovery precision is high, the rationality is high, and therefore, the applicability is wide.

The invention discloses a laser synchronous double-denudation system and method. The laser synchronous double-denudation system comprises a single-laser-beam shaping sub system and a double-way light-adjusting sub system. The single-laser-beam shaping sub system comprises a laser, an axicon pair, a micro-optical element, a collecting mirror and a microporous turn table, and the double-way light-adjusting sub system comprises a first beam splitter prism, a second beam splitter prism, a first reflecting objective, a second reflecting objective, a first angle tuning optical filter, a second angletuning optical filter, a first projection objective and a second projection objective. The laser synchronous double-denudation method comprises the steps that a single laser beam is generated by utilizing the single-laser-beam shaping sub system, and shaping is conducted on the single laser beam; and the shaped single laser beam is divided into a first light beam and a second light beam by utilizing the double-way light-adjusting sub system, the first light beam and the second light beam are guided to a sample and an internal standard substance correspondingly, and synchronous denudation of the sample and the internal standard substance is achieved.

The invention provides a superimposed basin oil gas pool-forming period rock porosity recovering method. The superimposed basin oil gas pool-forming period rock porosity recovering method comprises the steps that Step 1, recovery of stratum denudation quantity is carried out; Step 2, a thermal evolution history model is established; Step 3, pool-forming periods of target layer oil gas in an area and stratus temperatures of all the pool-forming periods are determined; Step 4, a compaction porosity model in the process of burying is established; Step 5, a surface-porosity-porosity model is established; Step 6, an organic acid corrosion porosity model in the process of burying is established; and Step 7, according to the compaction porosity model in the Step 4 and the organic acid corrosion porosity model established in the Step 6, a pool-forming period porosity model is established. The superimposed basin oil gas pool-forming period rock porosity recovering method enriches a quantitativeevaluation of corrosion porosity in the processes of multi-period pool-forming, can be widely applied to an evaluation of porosity in the process of superimposed basin multi-period pool-forming, andhas important guiding significancesfor oil gas exploration.

The invention provides a parallel analysis device for laser microcell denudation product components and isotopes and a method. The device comprises a laser microcell denudation system, a sample feeding system, a temperature control system and an analysis detection system, wherein a product capturing device in the sample feeding system is used for condensing and enriching a gas product discharged from the laser microcell denudation system, and used for releasing the gas product through heating treatment of the temperature control system under appointed conditions; a gas path diversion device inthe analysis detection system is used for diverting a compound separated by using a chromatographic instrument according to a certain ratio, and used for further guiding the diverted compound into amass spectrometer and an isotope instrument respectively; the sample feeding temperature of a sample is controlled by the temperate control system outside the chromatographic instrument. By adopting the scheme of the invention, on-line parallel analysis on components and monomer hydrocarbon isotopes of laser microcell denudation products can be achieved, comprehensiveness and accuracy of experiment data can be ensured, and meanwhile the experiment efficiency can be improved.

The invention relates to a method for recovering the burial history of a stratum near a normal fault. The method comprises the steps of: S1, performing well-seismic combination for regional stratigraphic division; S2, selecting a virtual well location of a target area and calculating the denudation amount of the virtual well location; S3, calculating the fault activity rate; and S4, recovering theburial history. The invention adopts well-seismic combination to carry out regional stratigraphic division, selects a virtual well location in the vicinity of the fault of the target well location without passing through the zone, uses the "trend analysis method" to calculate the denudation amount of the stratum, then calculates the fault activity rate according to the strata thickness features of the upthrown side and the downsthrown side of the fault, and determines the fault activity period; stratum erosion data, lithology data, geothermal data and geochemical analysis data are combined torecover the burial history of the study area. The invention can accurately recover the burial history and thermal evolution history of the stratum near the fault zone, thereby laying a foundation forreservoir evolution and high-quality reservoir diagenesis research, further determining the distribution of high-quality reservoirs, improving the drilling efficiency in the exploration and development process, and saving production funds.

A multi-actuated micro-pipette controller is actuated in at least three different ways. First, the multi-actuated micro-pipette controller may be employed similar to a striper for denudation of cumulus cells and transfer of oocytes and embryos by depressing an actuator assembly operably coupled to a ballonet. Second, the multi-actuated micro-pipette controller may be actuated similar to a SWEMED™ denudation pipette by pressing directly on the ballonet while it is seated in a primary housing and a secondary housing, without employing an actuator assembly of the primary housing. Third, the multi-actuated micro-pipette controller may be actuated by removing the ballonet and employing it similar to a PASTEUR™ pipette.

The invention relates to a geological knowledge base establishing method based on numerical simulation. The method includes: according to a mathematical equation and a boundary condition of hydrodynamics, superposing the deposition amount and the denudation amount which are obtained by simulating the hydrodynamic process and the sediment transmission process; obtaining a new sedimentary model, comparing and analyzing a simulation result and geological parameters of a target layer, performing geological dissection on the simulation result when the comparison and analysis results are consistent,extracting the geological parameters, and summarizing a geological phenomenon and a distribution rule of geological data, thereby establishing a corresponding geological knowledge base. Therefore, the material cost is saved, the constraint condition required by geologists to construct the geological model can be met, and the problem that the cost is high when a sedimentary physics simulation experiment is carried out through modern sedimentary investigation is effectively solved.

The invention discloses a processing method and device based on a high-pressure water jet cavitation effect, and relates to the technical field of removal manufacturing. The high-pressure water jet is utilized to generate the cavitation effect to perform denudation processing on a workpiece to form a required shape through accumulation. The device comprises a jet flow generation system, a high-pressure submersion system, a water tank, a high-pressure hose and a filter. According to the device, when a high-pressure water jet cavitation group moves to the surface of the workpiece, the cavitation group is broken due to stagnation pressure generated from retardation of the workpiece, about (5000 +/- 200)K of hot stops are generated for material melting and weakening, and the fatigue threshold of materials is decreased; fatigue fracture of the materials is caused under the composite action of high-frequency high-pressure shock waves, round block-shaped denudation is achieved, and removal manufacturing is achieved; and the device is simple in structure, easy to maintain, relatively low in cost and low in environmental pollution, and can process various materials and micro parts difficult to shape.

The invention discloses an ancient landform recovery method based on a source-sink system. The ancient landform recovery method comprises the steps that: S1, selecting a to-be-recovered region, and determining a geological history period; S2, dividing source-sink units of a geological history period on the basis of the residual landform; S3, based on a structural evolution rule of the to-be-recovered region, determining a differential settlement rule and a deposition reference surface, and performing differential settlement correction; S4, defining the ranges of a denudation region, an over-stripping region and an over-covering region based on the unconformity interface characteristics of the to-be-recovered region and the seismic facies difference of different lithologies, and performingdenudation amount recovery on the denudation region and the over-stripping region based on the principle of conservation of substances of the source-sink system; and S5, superposing images obtained inthe step S3 and the step S4 to complete recovery of the ancient landform framework. According to the ancient landform recovery method, the denudation region material source and the total material amount are recovered more visually and scientifically, so that ancient landform and prototype basins in the deposition period are established, and guidance is provided for research on denudation and deposition region material distribution, landform evolution, reservoir characteristics, reservoir body distribution and the like.