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99results about "Gas dispersion analysis" patented technology

System And Method For Characterizing Particulates in a Fluid Sample

A system for characterizing at least one particle from a fluid sample is disclosed. The system includes a filter disposed upstream of an outlet, and a luminaire configured to illuminate the at least one particle at an oblique angle. An imaging device is configured to capture and process images of the illuminated at least one particle as it rests on the filter for characterizing the at least one particle. A system for characterizing at least one particle using bright field illumination is also disclosed. A method for characterizing particulates in a fluid sample using at least one of oblique angle and bright field illumination is also disclosed.
Owner:OPTOFLUIDICS

Combined measurement method for organic matter-rich compact rock core gas permeability and diffusion coefficient

The invention discloses a combined measurement method for organic matter-rich compact rock core gas permeability and diffusion coefficient. The method utilizes a gas pressure attenuation device to accomplish. The device is composed of a rock core holder, a gas storage chamber, a vacuum pump, a confining pressure pump, and a computer. The rock core holder is connected to the vacuum pump and the confining pressure pump respectively, the inlet end of the rock core is connected to the gas storage chamber and a gas source, the outlet end of the rock core is in a closed state, and the device is located in a water-bath heating system. By monitoring the process of the gas in the gas storage chamber flowing to the rock core till balance, a gas pressure attenuation curve can be obtained, then according to a real gas state equation, material balance and the occurrence and flow mechanism of gas in rock, the attenuation curve is divided into a seepage stage and a diffusion stage, thus acquiring the gas permeability and diffusion coefficient. The method provided by the invention simplifies the testing procedure, improves the experimental analysis efficiency, and can provide data support for experimental evaluation of gas mass-transfer ability in shale, coal rock and other unconventional reservoir rocks, gas well productivity prediction and the like.
Owner:SOUTHWEST PETROLEUM UNIV

Atmosphere fine particle spatial and temporal distribution Raman mie scattering laser radar surveying device

The invention discloses an atmosphere fine particle spatial and temporal distribution Raman mie scattering laser radar surveying device. The device works at the wavelengths of 532nm, 355nm and 387nm and is provided with four detection channels. A light source is an Nd: YAG solid laser. According to the transmitting optical design, a single multi-wavelength coupling transmitting telescope is used. According to the receiving optical system design, a receiving telescope which is high in efficiency and small in caliber is used. According to the subsequent optical design, a multi-channel subsequent optical system is used. Expansion is facilitated, and a high protection grade and the high electromagnetic-interference-resisting capability are achieved. Detection light for detecting the wavelength of 532nm and detection light for detecting the wavelength of 355nm share the same transmitting telescope. A transmitting optical system and a receiving optical system are coaxially designed, and the systems are provided with small detection dead zones and designed with 387nm wavelength nitrogen Raman detection channels. Detection of the laser radar ratio close to a ground layer can be achieved, the detection precision of the systems is ensured, and synchronous remote sensing detection on multiple parameters of atmosphere fine particles is achieved. The device can be launched into the atmosphere at any angle so as to achieve all-weather on-line detection on the spatial and temporal distribution characteristics of the atmosphere fine particles. The device has the advantages of being high in detection precision, little in inversion error, high in spatial and temporal resolution and the like.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Experimental apparatus for studying gas invasion and migration mechanism in oil and gas wellbores

The present invention provides an experimental apparatus for studying the gas invasion and migration mechanism in oil and gas wellbores, comprising: a wellbore; a wellbore pressure control unit, configured to control the pressure in the wellbore; a drilling fluid injection and discharge unit, configured to control the volume of a drilling fluid in the wellbore; a temperature control unit, configured to control the temperature in the wellbore; a rock core clamper, configured to clamp a rock core in a way that one side of the rock core is exposed to the drilling fluid in the wellbore; a gas invasion unit, configured to inject a gas into the rock core; and a measuring device, configured to measure the data related to one or more of the following items in the wellbore: gas bubble migration velocity, diffusion concentration and particle size distribution, gas bubble merging process, hydrate phase transition process, and migration velocity, diffusion concentration and particle size distribution of hydrate after phase transition.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Experiment equipment used for studying gas invasion and migration mechanism of oil and gas pitshaft

ActiveCN106351621AAchieve intrusionMigration revealedSurveyGas dispersion analysisEngineeringBubble fusion
The embodiment of the invention provides experiment equipment used for studying gas invasion and migration mechanism of oil and gas pitshaft. The experiment equipment comprises a pitshaft, a pitshaft pressure controlling unit, a drilling fluid injecting and discharging unit, a temperature controlling unit, a rock core clamp holder, a gas invading unit and a measuring device, wherein the pitshaft pressure controlling unit is used for controlling the pressure within the pitshaft; the drilling fluid injecting and discharging unit is used for controlling the amount of the drilling fluid within the pitshaft; the temperature controlling method is used for controlling the temperature within the pitshaft; the rock core clamp holder is used for clamping a rock core, one side of the rock core is exposed to the drilling fluid within the pitshaft; the gas invading unit is used for injecting gases to the rock core; and the measuring device is used for measuring information concerned with one or several of the following: bubble migration velocity, diffusion concentration and particle size distribution, bubble fusion process, hydrate phase transition process, as well as the migration velocity, the diffusion concentration and the particle size distribution of the hydrate after the phase change. The experiment equipment can study stratum gas invading pitshaft mechanism and bubbles migration, integration and / or phase change mechanism within the pitshaft, therefore providing experimental evidence for establishing a deepwater oil and gas pitshaft gas invading theoretical model.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1

System and method for monitoring a fluid

System (18, 28) for inspecting oil, which comprises a cell (280) through which oil (281) flows through a pipe. Inside said cell (280) the system comprises a lighting system (284) based on at least one LED diode and configured to supply a beam of white light to the flow of oil (281); a diffuser (286) situated between the lighting system (284) and the flow of oil (281), configured to provide homogeneous lighting to the lit area; an image capture system (282, 382) situated on the opposite side of the pipe through which the oil (281) flows in respect of the lighting system (284) and configured to capture a sequence of images of the oil which flows inside said pipe; a lens (283) situated between the image capture system (282) and the flow of oil (281), configured to focus the captured images; a calibration device (287) situated between the lens (283) and the flow of oil (281); a processor (2851) configured to process said sequence of images and to determine the presence of particles and bubbles and a degradation value of the oil.
Owner:ATTEN2 ADVANCED MONITORING TECH S L U

Determination of gas solubility, entrained gas content, and true liquid density in manufacturing processes

Improved control of continuous processes that handle liquids. Data generated by this invention is used to control gas contents of liquids within optimum ranges, for instance in paper coating processes and in the manufacture of food products (ketchup), personal care products (shampoo), paints, and in any industry where information on entrained and / or dissolved gases, and related parameters such as true density of and gas solubility in process liquids, is employed to optimize processing. The amount of gas in a liquid is determined by subjecting a mixture of an incompressible liquid sample and a compressible gas to three or more different equilibrium pressure states, measuring the temperature and volume of the mixture at each of the pressure states, determining the changes in volume of the mixture between at least two different pairs of pressure states, and calculating the amount of gas in the liquid sample. The inventive apparatus includes: a reservoir for process fluid; piping through which fluid may be pumped, the piping being under the control of a pressure regulator which is capable of setting at least three different pressures P1, P2, and P3 in the apparatus; at least three fluid control valves V1, V2, and V3; a pressure gauge; a temperature gauge; and a density gauge.
Owner:APPLETON PAPERS INC

Particle detecting device

A particle detecting device is provided. The particle detecting device includes a base, a detecting element, a micro pump and a drive control board. The base includes a detecting channel, a beam channel and a light trapping region. The detecting element includes a microprocessor, a particle sensor and a laser transmitter. The particle sensor is disposed at an orthogonal position where the detecting channel intersects the beam channel. When the micro pump, the particle sensor and the laser transmitter are enabled under the control of the microprocessor, the gas outside the detecting channel is inhaled into the detecting channel. When the gas flows to the orthogonal position where the detecting channel intersects the beam channel, the gas is irradiated by the projecting light source from the laser transmitter, and projecting light spots generated are projected on the particle sensor for detecting the size and the concentration of suspended particles.
Owner:MICROJET TECH

Particle sorting device, particle sorting method, program, and particle sorting system

Disclosed herein are a particle sorting device capable of simply detecting bubbles, foreign substances, or the like in droplets, a method for analyzing particles, a program, and a particle sorting system. The particle sorting device includes a judgment unit, and the judgment unit judges whether or not captured image information including captured droplet image information about a brightness of an image of particle-containing droplets captured after discharge from an orifice has changed with respect to previously-set reference image information including reference droplet image information about a brightness of an image of droplets captured after discharge from the orifice.
Owner:SONY GRP CORP

Flushing a multi-port valve manifold

A method for flushing gas pockets from a manifold that forms a part of a liquid sampling system that is compatible with a chemical-mechanical polishing system is described. A flushing liquid, e.g., ultra pure water, is introduced into, and expelled from, the manifold to expel gas pockets from the manifold. The method comprises the steps of opening a manifold vent, filling the manifold with the flushing liquid, and closing the vent to increase the velocity of the flushing liquid flowing through the manifold. The introduction of the flushing liquid is discontinued, and thereafter, resumed. The discontinuation and resumption steps are preferably repeated The manifold is thus flushed of gas pockets.
Owner:AIR LIQUIDE ELECTRONICS US LP

Calibrating system and calibrating method for gas exchange flux of land-atmosphere interface

The invention relates to a calibrating system and a calibrating method for gas exchange flux of a land-atmosphere interface. The calibrating system comprises an exchange process simulating unit, a T-shaped balancing port, an exchange flux measuring unit and an environment variable measuring unit, wherein the exchange process simulating unit mixes standard gas in a standard gas cylinder with air ina storage tank to obtain mixed gas; the T-shaped balancing port balances the pressure difference between the mixed air and environmental atmosphere; land-atmosphere exchange happens through a pervious bed as a result of concentration difference between the mixed gas and the environmental atmosphere; characteristic changes of the pervious bed simulate land-atmosphere exchange processes of different types of soil; the exchange flux measuring unit is connected to the exchange process simulating unit to detect the concentrations of the mixed gas of the storage tank and the environmental atmosphere; and the environmental variable measuring unit is connected to the exchange process simulating unit to determine the standard value Fs of the land-atmosphere exchange flux according to data of a sensor module and concentrations of the mixed gas and the environmental atmosphere. Therefore, errors of the measured value Fm of land-atmosphere exchange flux are calibrated through a closed box method,that is, the absolute error ea is equal to Fm-Fs.
Owner:INST OF ATMOSPHERIC PHYSICS CHINESE ACADEMY SCI

Method for measuring oxygen effective diffusion coefficient in fuel cell catalyst layer

The invention designs a method for measuring the oxygen effective diffusion coefficient in a fuel cell catalyst layer. The method includes the steps of S1, assembling double membrane electrodes into a fuel cell; S2, detecting the limited current of the fuel cell; S3, substituting the limited current into a Fick law shown in the formula I to obtain the diffusion coefficient of an electrode layer, wherein CO2 is experiment control amount of oxygen concentration, CPt and suf are oxygen concentrations of a Pt surface, delta is the thickness of a simulation catalyst layer, and all can be obtained through experiment measurement. The method has the advantages that DCL does not contain Pt and is free of electrochemical reaction, so the mass transfer characteristic can be presented through the Fick law; the manufacturing method, material composition and CL of the DCL are completely consistent, and the mass transfer characteristic of CL can be effectively copied; by measuring the limited current, the relation between the oxygen flux and the concentration is obtained, and the effective mass transfer coefficient is calculated through the Fick law.
Owner:SHANGHAI JIAO TONG UNIV
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