24 results about "Liquid ratio" patented technology

The invention discloses a high-gas-liquid-ratio gas-liquid two-phase flow and liquid holdup measurement method and device based on three-dimensional differential pressure, and the method comprises the steps: applying a centrifugal force to a gas-liquid two-phase flow through a centrifuge, and generating a stable gas nucleus-liquid ring separation structure; measuring radial differential pressure, axial differential pressure, temperature and pressure values of the centrifuge in real time; establishing a liquid holdup calculation model based on the differential pressure ratio of the radial differential pressure and the axial differential pressure, and obtaining the liquid holdup according to the liquid holdup calculation model; calculating a friction coefficient and corrected gas phase density according to the temperature and pressure values; and based on the mapping relation between the axial differential pressure and the gas phase apparent velocity and the gas state equation, the gas-liquid two-phase flow is calculated according to the liquid holdup, the friction coefficient and the corrected gas phase density. According to the invention, a high-precision, separation-free and fast-response industrial-grade solution is realized, and a new-generation measuring tool is provided for the key fields of shale gas exploitation, submarine oil and gas pipeline transportation and the like.

The invention discloses a method for calculating the homogeneous temperature of a fluid inclusion homogeneous as a liquid phase. The method comprises the following steps: by heating a rock slice of a target fluid inclusion, acquiring multiple groups of fluid inclusion temperature data and corresponding fluid inclusion gas-liquid ratio data after a gas phase in the fluid inclusion begins to change; according to the obtained multiple sets of fluid inclusion temperature data and the corresponding fluid inclusion gas-liquid ratio data, a relation model of the fluid inclusion gas-liquid ratio and the fluid inclusion temperature is established; and calculating the uniform temperature of the target fluid inclusion according to the relation model of the gas-liquid ratio of the fluid inclusion and the temperature of the fluid inclusion. According to the method, the time for obtaining the uniform temperature of the liquid-phase fluid inclusion is shortened, the efficiency for obtaining the uniform temperature of the fluid inclusion is improved, and particularly, the method has good practical value in the field of calculation of the uniform temperature of the high-temperature and ultrahigh-temperature fluid inclusion.

According to the jet type atomization device and the atomization method, a specific airflow channel is constructed, so that high-speed airflow is jetted to central liquid flow from the periphery, and front and violent momentum exchange type collision is formed at an outlet of a mixing cavity instead of simple shearing, so that superfine atomization is realized at a lower gas-liquid ratio; the collision structure ensures that the whole cross section of the liquid flow can be violently impacted and broken by the air flow, so that the overall atomization uniformity is improved, and the generation of large-particle-size liquid drops is avoided; the head of the nozzle is arranged in the special through hole or the sleeve on the wall surface of the pipeline, and the protective gas hood is utilized to form a heat insulation barrier, so that a key injection part of the nozzle is not directly exposed in mainstream high-temperature fuel gas, continuous impact of hot airflow and particles is avoided, carbon deposition is remarkably reduced, and the service life of the nozzle is prolonged. And meanwhile, due to the modular design, the nozzle is convenient to maintain and use in different application scenes.

The invention relates to the technical field of petroleum equipment, and relates to a device and a method suitable for monitoring the gas-liquid ratio of crude oil, in particular to an online monitoring device for the gas-liquid ratio of crude oil, which is compact in structure, quick in response and suitable for real-time monitoring of scenes such as wellheads and manifolds.

The invention discloses a high-gas-liquid-ratio lifting method and device. The lifting method comprises the steps that a production well is selected, and a gas anchor is installed; a remote control one-way valve is mounted on the wall of the oil pipe; a bottom gas flowmeter and a bottom pressure gauge are mounted at the bottom of the production well; a remote control one-way valve on the wall of the oil pipe is closed, and well bottom gas flow, well bottom pressure and oil production data are monitored; when the gas-liquid ratio of the production well exceeds a first set threshold value or the bottom hole pressure is lower than a second set threshold value of saturation pressure, the remote control one-way valve on the oil pipe wall is opened, and annular gas enters the oil pipe; when the bottom hole pressure rises to a third set threshold value of the original formation pressure or the gas-liquid ratio decreases and is lower than a fourth set threshold value, the remote control one-way valve on the oil pipe wall is closed; and monitoring production parameters, and repeatedly executing the steps of starting the separated gas auxiliary lifting and closing the separated gas auxiliary lifting. And lifting is assisted through separated gas, the annulus pressure of an oil pipe and an oil sleeve is balanced, and safe lifting of a high-gas-liquid-ratio well is achieved.

The present invention relates to a solution for determining the content of a fluid flow, especially for determining the gas fraction or density of the fluid flow at a predetermined rate. It includes a data storage device storing an assumed water liquid ratio value related to the flow, a gamma densitometer configured to measure the density in at least a defined section of the fluid flow in a predetermined time period, thus providing a density measurement of the fluid flow in said defined section, and storing a corresponding first density value and tomographic impedance measuring unit configured for providing a sequence of discrete tomographic measurements of the gas / liquid distribution of the flow at discrete time steps within said time period. The tomographic measuring unit also calculating the gas fraction and density for the fluid flow in the defined section for each discrete time step.

The application discloses an oil-gas mixed transportation gas-liquid ratio control device, which comprises a device base, an input pipeline group fixed on the device base, a speed reducer motor, a double support pump, an output pipeline group, a backflow pipeline group, an accumulator and a control cabinet. The application also proposes an oil-gas mixed transportation gas-liquid ratio control method, which comprises the following steps: step one, building the oil-gas mixed transportation gas-liquid ratio control device and running; step two, regularly judging whether the temperature data detected by the temperature sensor on the double support pump is within the set threshold range; step three, backflow control: the controller controls the second stop valve to open, so that the liquid in the backflow temporary storage pipe enters the buffer pipe through the backflow outlet pipe; step four, when the temperature data returns to the threshold range, the controller controls the second stop valve to directly close or delay to close, and the backflow ends; and step five, regularly judging whether the liquid level data in the backflow temporary storage pipe is within the set threshold. The application can realize gas-liquid ratio control under the oil-gas mixed transportation condition.

The application provides a wellbore scaling amount dynamic determination device and method, wherein the wellbore scaling amount dynamic determination device comprises a reaction kettle system, a rotating scaling system, a sample preparation system and a measuring system; the reaction kettle system is divided into a top cover, a kettle body and a bottom cover, and through holes are arranged on the top cover and the bottom cover to connect with other components; the rotating scaling system comprises a motor and a hollow deposition rod, the hollow deposition rod is fixed on the top cover by a strong magnetic metal block, and the motor drives the hollow deposition rod to rotate; the sample preparation system comprises a high-pressure displacement pump and an intermediate container, the sample preparation system is connected with the reaction kettle system, and after experimental fluid is configured in the intermediate container, the experimental fluid is pumped into the kettle body of the reaction kettle by the high-pressure displacement pump; and the measuring device is connected with the sample preparation system through a pipeline to detect the gas-liquid ratio of the experimental fluid. The application has the advantages that the scaling amount can be tested under different conditions; the rotating scaling system is driven by the electromagnetic principle, the sealing property of the reaction kettle is ensured, and dynamic experiments can be carried out.

The present application relates to a kind of drag chain leaching liquor ratio, liquid level, temperature automatic regulating system and method, system includes drag chain leaching device shell, head has material feed inlet and extraction liquid discharge port, tail has material discharge port and extraction solvent liquid inlet port.Material feed inlet has feeding auger, feeding metering scale, feeding scraper, sequentially head-to-tail connection;Material discharge port has weight sensor;Extraction liquid discharge port and extraction solvent liquid inlet port respectively have extraction liquid discharge regulating valve, extraction liquid discharge flow meter and extraction solvent liquid inlet regulating valve, extraction solvent liquid inlet flow meter;Shell inner bottom has pressure type liquid level meter;Shell side wall has three temperature sensors, corresponding shell interior lower three segments circuitous steam heat exchange pipeline, steam heat exchange pipeline steam inlet all have steam inlet regulating valve;In addition, automatic regulating method is further provided.The present application realizes drag chain leaching liquor ratio, liquid level, temperature automatic regulating, thereby stabilizes production efficiency and the yield of extraction product.

The utility model belongs to the technical field of energy engineering, concretely relates to the proportional measurement of geothermal fluid. A kind of direct condensing geothermal fluid vapor-liquid proportional measurement system, including main output pipe, condensing unit, separation unit, cooling water unit, measurement unit;Condensing unit includes the direct condensing condenser for receiving heat source fluid;Cooling water unit is used to output cooling water to direct condensing condenser;Separation unit includes gas-liquid separator;Gas-liquid separator includes the gas phase output pipe for outputting gas and the liquid phase output pipe for outputting liquid, and the liquid phase output pipe is connected with measurement tank;Heat source fluid and cooling water are directly mixed and heat exchanged in the direct condensing condenser, and the obtained mixed fluid is output to gas-liquid separator.The utility model provides the system and method using direct condensing method, and the original proportion of water, steam and incondensable gas in wellhead geothermal fluid can be accurately measured.

The utility model belongs to the technical field of slurry solid ratio inspection, and particularly relates to a slurry solid ratio visual inspection device which comprises a supporting seat, a first supporting ring abutting against the upper surface of the supporting seat, a plurality of supporting rods fixedly connected to the upper surface of the first supporting ring, and a second supporting ring fixedly connected to the upper surfaces of the supporting rods. The inner wall of the second supporting ring abuts against a vertically-arranged funnel, and the upper surface of the supporting base is provided with a circular marking line arranged under the funnel. According to the visual inspection device for the solid-to-liquid ratio of the slurry, a worker can directly and visually inspect the relationship between the diffusion range of the slurry and the marking line on site so as to quickly inspect whether the solid-to-liquid ratio of the slurry meets the requirement or not, so that the field working efficiency is improved, and the field production is facilitated.

The application discloses a kind of pollution adsorbent particle residual adsorption amount determination method and system, it is related to pollution adsorbent particle desorption research technical field.The application constructs improved Lan* desorption kinetics model;Based on origin software and desorption kinetics experimental data, the coefficient in improved Lan* desorption kinetics model is fitted, and residual adsorption amount prediction model of pollution adsorbent particle is obtained;Target desorption time is substituted into residual adsorption amount prediction model of pollution adsorbent particle, and the residual adsorption amount of unit mass pollution adsorbent particle at target desorption time is determined.The application can quickly complete the prediction of the residual adsorption amount of adsorbate of unit mass adsorbent at any desorption time by introducing solid-liquid ratio to construct improved Lan* desorption kinetics model.

The invention discloses a gas-liquid exchange system and method for enrichment, and relates to the technical field of gas-liquid exchange systems, and the gas-liquid exchange system comprises a liquid phase composition part, a gas phase composition part, a packed tower reactor part, a fluid and temperature control matching part and an online detection and tail gas treatment part. According to the gas-liquid exchange system and method for enrichment, through three core technical means, firstly, ethyl alcohol is introduced into a liquid phase system to serve as a cosolvent, the liquid phase viscosity with triethylamine as a main body is effectively reduced, the mass transfer resistance during gas-liquid two-phase contact is greatly reduced, and the isotope exchange rate is remarkably increased; secondly, the doping proportion of sulfur dioxide is accurately controlled, and the selective adsorption capacity to carbon-13 carbon dioxide is enhanced through the synergistic effect of sulfur dioxide and triethylamine, so that the separation effect of carbon-13 and carbon-12 is better; and finally, the strict limitation of the traditional technology on the temperature and the gas-liquid ratio is broken through, and the temperature and the gas-liquid ratio can be regulated and controlled in a wider range.

The invention provides a method, a system, equipment and a medium for calculating the flowing bottomhole pressure of an oil well. The method comprises the following steps: dividing the high-gas-liquid-ratio oil well into a mixed liquid section, a foam pure oil section and a pure gas section from bottom to top; respectively calculating the pressure of the foam pure oil section and the pressure of the pure gas section; according to the obtained pressure of the foam pure oil section and the obtained pressure of the pure gas section, the pressure of a mixed liquid section is calculated in combination with a segmentation method; calculating the bottom hole flowing pressure of the target oil well according to the obtained pure gas section pressure, the foam pure oil section pressure and the mixed liquid section pressure; according to the method, the pressure of the mixed liquid section is calculated by adopting a segmentation method, so that the accurate bottom hole flowing pressure can be obtained, and the defects that the bottom hole flowing pressure of an oil pumping unit and an electric pump well cannot be directly tested and the production dynamic state of an oil well cannot be accurately mastered due to pipe columns are overcome.

The invention relates to the technical field of oil exploration and development, in particular to a method for determining oil and gas filling time, which comprises the following steps: identifying the occurrence and the period of a hydrocarbon inclusion, and identifying a brine inclusion associated with the hydrocarbon inclusion in the same period; the uniform temperature of the hydrocarbon inclusion and the uniform temperature of the brine inclusion in the same period are obtained through experiments, and the actually measured gas-liquid ratio of the hydrocarbon inclusion is obtained; performing iterative calculation according to the uniform temperature of the hydrocarbon inclusion and the uniform temperature of the brine inclusion in the same period to determine the actual capture temperature of the hydrocarbon inclusion; and comparing the actual capture temperature of the hydrocarbon inclusion with the corresponding single well burial history diagram or profile burial history diagram, and determining the oil and gas filling time. The method overcomes the defect that in the prior art, due to the fact that the oil and gas filling time is determined by replacing the capture temperature of the hydrocarbon inclusion with the uniform temperature of the same-period saline water inclusion associated with the hydrocarbon inclusion, deviation exists in the oil and gas filling time.

The invention relates to a method for measuring the gas-liquid ratio of a fluid inclusion, which comprises the following steps: sample preparation: cutting a rock sample into temperature measuring sheets, polishing, and positioning a target fluid inclusion; sound tweezers are locked, wherein a standing wave sound field is generated by combining high-frequency sound waves with a piezoelectric transducer array and a holographic acoustic lens or phased array technology, and bubbles in the inclusion are locked; raman spectrum verification: before and after the acoustic tweezers are locked, scanning the inclusion by adopting a Raman spectrum technology, and verifying that the sound field operation does not cause phase change or component loss by comparing peak position offset; performing Raman three-dimensional CT scanning and deformation correction: performing layer-by-layer scanning on the inclusion by utilizing a Raman microscope, constructing three-dimensional component distribution information of the inclusion, analyzing and simulating the influence of sound radiation pressure on the bubble form through a finite element, establishing a relation model of bubble deformation and sound field intensity, and correcting an initial volume calculation result; and gas-liquid ratio calculation: calculating a gas phase volume, a liquid phase volume and a sub-mineral volume in combination with the corrected three-dimensional model.

A multiphase vortex flowmeter system determines the gas-to-liquid ratio (GLR) and flow rates from a well producing multiphase gas, oil and water by detecting the frequency and amplitude of vortices shed in a vortex flowmeter. In particular, the phase of the flow can be identified by detecting the change in the frequency of the vortices with respect to time, and the amplitude of the vortices. Based on the phase, the flow rates of liquid and gas can be calculated. For multiphase flow, the GLR can be determined based on changes in the magnitude of the velocity oscillations measured by the vortex flowmeter, if the changes exceed a predetermined threshold. If not, the GLR can be determined based on the average frequency and average amplitude of the vortices.

The present invention discloses a system and method for establishing a phase fraction metering model for multiphase production from oil wells. The oil well multiphase medium production simulation equipment of the system is used to measure the throttling pressure difference signal and temperature drop amplitude before and after the nozzle when the gas phase and liquid phase of different flow combinations are mixed and pass through the selected nozzle, thereby obtaining an experimental data set; the metering model establishment module is used to establish a gas phase mass fraction calculation model based on the experimental data set, and the gas phase mass fraction calculation model is used to characterize the relationship between the standard deviation of the throttling pressure difference fluctuation before and after the nozzle, the temperature drop amplitude and the gas phase mass fraction. The model established by this system can accurately and conveniently perform phase fraction metering on the multiphase production medium of oil wells, and has a wide range of applications, and is still applicable to complex working conditions such as high gas-liquid ratios; at the same time, the ground process flow is simple and the metering cost is low.

The present application relates to a kind of strong precipitation nowcasting methods of liquid ratio, comprising: collecting radar reflectivity data and next hour precipitation real-time data within one hour;Radar reflectivity data is converted into three-dimensional data under Cartesian rectangular coordinate system, and precipitation real-time data is converted into two-dimensional precipitation grid field;Strong precipitation nowcasting model is built;Model is trained on training set, hyperparameter is optimized on verification set, and model is tested on test set;Obtain precipitation estimation field data.The present application uses the double decoder based on liquid ratio and attention mechanism to build strong precipitation nowcasting model, uses the echo data of liquid water content conversion processing and carries out the feature coding extraction work using encoder module, using two parallel decoder module respectively output prediction result of strong rain area and rainfall, using comprehensive loss function improves the quantitative estimation and qualitative classification of strong precipitation area, after effectiveness test, the present application can significantly improve nowcasting accuracy.

The invention relates to a differential pressure type solid-to-liquid ratio automatic monitoring system, and relates to the technical field of salt production. The differential pressure type solid-liquid ratio automatic monitoring system comprises a measuring system, a flushing system and a control system. The pressure data is monitored through the first pressure strain gauge and the second pressure strain gauge, the differential pressure value obtained through calculation is compensated and corrected, then the measured differential pressure value can be quickly and accurately converted into the solid-liquid ratio through the linear regression model, and the accuracy of real-time monitoring is guaranteed.

The present application relates to the technical field of foam evaluation, and is a kind of foam evaluation device and foam evaluation method, the former includes a flat pump, a piston container, a foam generator, a visible kettle, a gas booster pump, a recovery pipeline and a back pressure pipeline, the inlet of the visible kettle is fixedly connected with the gas inlet pipeline, the liquid inlet pipeline and the foam pipeline respectively;The latter includes three kinds of foaming mode evaluation, which are ground foaming mode, well bottom foaming mode and gas-liquid alternating mode.The present application has reasonable and compact structure, is easy to use, can test the performance parameters of foam under different foaming modes, different gas media, different gas-liquid ratios, different temperatures, different pressures and other experimental conditions, can observe the dynamic changes of foam diameter and volume in real time during the experiment, and has the characteristics of simplicity and high efficiency.

Salt modified aluminoborates and processes of producing them are described. The salt modified aluminoborate has a weight ratio of Al:B in the range of 1.5 to 2.5, and it has an XRD diffraction pattern substantially similar to the XRD pattern of known aluminoborates. It can be produced using temperatures in the range of 20°C to 40°C and a solid: liquid ratio of 1:20 to 1:100, or temperatures in the range of 50 to 100 °C and a solid: liquid ratio of 1:10 to 1:40 will produce a salt modified aluminoborate with the properties described below. Calcining the salt modified aluminoborate produces different XRD diffraction patterns depending on the temperature used for the calcining.

The invention discloses a refrigerating device, system, method, medium and equipment capable of dynamically adjusting the air-liquid ratio. The refrigerating device comprises an air cooling tail end module, a liquid cooling tail end module and a cold supplementing module, the air cooling tail end module is used for conducting air cooling on the environment where the high-heat-flux equipment is located, and the liquid cooling tail end module is used for conducting liquid cooling on the high-heat-flux equipment through a liquid cooling agent. The cold supplementing module is connected with the air cooling tail end module and the liquid cooling tail end module, and the cold supplementing module obtains cold energy through an external cold source and dynamically distributes the cold energy to the air cooling tail end module and / or the liquid cooling tail end module according to the air cooling load and the liquid cooling load and a preset proportion. According to the refrigeration device, the cold supplementing module can respond to changes of air cooling loads and liquid cooling loads in real time, the proportion of the cooling capacity distributed to the air cooling tail end and the liquid cooling tail end is accurately adjusted by controlling components such as a compressor and an expansion valve in the cold supplementing module, and the adaptability of the refrigeration device to actual requirements is improved.

The invention relates to a device (2) for measuring a gas to liquid ratio value in a gas-liquid of a refrigerant (6), comprising at least one control logic (3) and at least one capacitive sensing element (4) comprising at least two electrodes (7). The device (2) is designed and arranged such that a fluid (6) is present between the two electrodes (7). The control logic (3) measures the capacitance of the capacitive sensing element (4) and derives a measurement signal to be output indicative of a gas-to-liquid ratio value in the fluid (6).