8results about How to "Quantitative" patented technology

The application provides a pre-tailings discarding mode distinguishing method based on useful mineral dissemination characteristics, and relates to the field of mineral processing. The pre-tailings discarding mode distinguishing method based on useful mineral dissemination characteristics comprises the following steps: preparing a plurality of optical sections from an ore sample; analyzing the optical sections by using an optical microscope and an image analysis technology, and classifying the dissemination characteristics of useful minerals in the optical sections; calculating the average occupancy of local enrichment type in all optical sections, the average occupancy of vein type in all optical sections, and calculating a pre-enrichment proportion Pvalid; comparing the pre-enrichment proportion with a preset threshold value, and if Pvalid is greater than or equal to the preset threshold value, it is determined that the ore sample is suitable for pre-enrichment by using a pre-tailings discarding process. The prediction conclusion of the method of the application is highly consistent with actual industrial test and production data, has the advantage of high accuracy, solves the problem that the pre-discarding effect can only be detected by test, and is beneficial to improving work efficiency and reducing cost.

This invention discloses a device and method for evaluating the proppant-carrying performance of fracturing fluid with continuously adjustable proppant concentration, relating to the field of oil and gas field production enhancement. The device includes a reactor body. The reactor body is equipped with a stirring assembly, a proppant-adding assembly, a heating assembly, and a visualization window. The proppant-adding assembly achieves quantitative and batch-wise addition of proppant within the high-pressure reactor through a series of upper valves, a proppant-to-be-added section, and a lower valve. The method includes: applying experimental temperature and pressure conditions, initiating stirring to simulate dynamic flow, continuously adding proppant in batches through the proppant-adding assembly, monitoring the proppant status in real time using a vision system, and recording and analyzing data to obtain a continuous proppant-carrying performance curve and a limit proppant-carrying value. This invention solves the problem of existing technologies being unable to conduct continuous gradient testing of proppant concentration under high-temperature and high-pressure dynamic conditions, and can obtain complete proppant-carrying performance data of fracturing fluid from low concentration to limit concentration in one go, with evaluation results closer to actual downhole operating conditions.

This invention provides a liquid storage bottle for quantitative dispensing, comprising a bottle body, a measuring device, and a cap. The bottle body has a storage chamber and a bottle opening communicating with the storage chamber. The measuring device is detachably connected to the bottle opening and has a first cavity forming a dispensing port and a second cavity communicating with the storage chamber. The first and second cavities are connected or disconnected by a one-way valve. When the bottle opening is facing downwards, the contents of the storage chamber flow to the second cavity, and the one-way valve disconnects the first and second cavities. When the bottle is inverted so that the bottle opening faces upwards, the one-way valve connects the first and second cavities. The first cavity is used for quantitative dispensing. The cap is detachably connected to the dispensing port of the measuring device. The first cavity can be used to achieve quantitative dispensing. Thus, quantitative dispensing can be achieved during two inversions of the storage bottle, allowing a fixed volume of liquid to be poured out at once without pouring into the cap, and the amount dispensed does not need to be manually controlled, making the operation convenient and quick.

The application provides a marine rainstorm diagnosis method and system based on a multi-source remote sensing South China Sea summer monsoon index, relates to the meteorological monitoring technical field, and comprises the following steps: acquiring multi-source remote sensing data such as a South China Sea wind field, a temperature field and a humidity field, calculating a monsoon comprehensive index field, and performing time-space gradient analysis to identify an abnormal region. Based on the spatial position and evolution trend of the abnormal region, the intensity of kinetic energy input and thermal energy output is calculated respectively, and whether the energy budget is in a positive feedback enhancement state is determined by comparison. Finally, the rainstorm diagnosis result is generated by coupling the evolution path of the index field and the energy state, and more accurate and timely diagnosis and early warning of the South China Sea marine rainstorm are realized.

The utility model discloses processing equipment for a core body in a disposable hygienic product, which relates to the technical field of hygienic product production equipment and comprises an adsorption die wheel, a first conveying mechanism, a first glue spraying mechanism, a first blanking mechanism, a second conveying mechanism, a second glue spraying mechanism and a second blanking mechanism, macromolecules are efficiently adsorbed through the adsorption cavity and discharged to the adhesive layer, the fluffy cotton is subjected to glue spraying through the second glue spraying mechanism, and another layer of macromolecules is overlaid on the fluffy cotton through the second discharging mechanism. Different adsorption cavities in the adsorption mold wheel are matched with the first discharging mechanism and the second discharging mechanism, and macromolecules are efficiently transferred in a negative-pressure macromolecule adsorption mode, so that the macromolecules can effectively penetrate into fluffy cotton in the middle, and the adsorption effect of the fluffy cotton is improved. Intermittent control in different forms can be realized by changing an adsorption grid of the mold wheel, the macromolecule spreading amount at different positions can be freely set, high-speed operation is realized, synchronous and same-speed online operation with a host is kept, and the stability of the product structure and quality is ensured.

The application provides a piezochromic grounding shielding assembly for a plant protection unmanned aerial vehicle peristaltic pump and a monitoring method thereof, and relates to the technical field of unmanned aerial vehicles. The shielding assembly comprises a multilayer composite structure of a conductive metal substrate layer, a piezochromic functional layer, a transparent conductive protective layer and an anti-corrosion sealing layer. The piezochromic functional layer adopts a polydiacetylene-silver nanowire composite system and undergoes reversible blue-red phase transition under the action of grounding contact pressure. The monitoring method comprises the following steps: periodically collecting images of the color-changing area by an onboard miniature CMOS camera, extracting chromaticity parameters in the CIE Lab color space, establishing a chromaticity-grounding impedance mapping model, realizing four-level grading evaluation of grounding quality, and reporting in real time to a ground station through a flight control system. The application simultaneously provides passive visual indication and active digital monitoring dual functions without increasing the wiring and power supply burden, and significantly improves the reliability and maintainability of the shielding system of the plant protection unmanned aerial vehicle peristaltic pump.

The invention relates to the technical field of permeability difference measurement, in particular to a method for correcting permeability difference before and after water logging of a sandstone reservoir. The method comprises the steps of obtaining parameter data of different reservoirs of a sub-well group before and after the sandstone reservoir is flooded, formation temperatures and air permeability of an oil well, and obtaining a comprehensive intrusion index of each reservoir according to the value of the deep lateral resistivity of a sampling point in each reservoir relative to the original formation resistivity; obtaining an abnormal degree index of each sampling point according to the difference of the parameter data of different sampling points; the natural potential value, the slurry resistivity and the formation temperature are corrected in combination with the comprehensive invasion index and the abnormal degree index, the target potential, the slurry target resistivity and the target temperature are obtained, and the oil displacement efficiency of the oil well after flooding is determined; and obtaining the corrected permeability change rate before and after flooding by using the oil displacement efficiency and the air permeability of the oil well before and after flooding. According to the method, the accuracy of the permeability difference evaluation result before and after the sandstone reservoir is flooded is improved.

The present application relates to the technical field of coastal protection and marine numerical simulation, and particularly relates to a mangrove wave dissipation effect evaluation method, which comprises the following steps: obtaining original coastline data, wind field data, original topographic water depth data and original mangrove distribution data; constructing a nested grid system composed of an outer regular grid and an inner unstructured grid; completing topographic water depth data conversion and mangrove vegetation parameterization; and mapping the spatial distribution of mangroves to the inner grid; under the same boundary conditions and model parameter configuration scheme, executing mangrove scenario simulation and non-mangrove scenario simulation respectively; and then based on the obtained mangrove wave field simulation data and non-mangrove wave field simulation data, evaluating the mangrove wave dissipation effect, so as to realize quantitative, standardized and efficient evaluation of the mangrove wave dissipation effect.