Class / Patent application number | Description | Number of patent applications / Date published |
073861040 | Of selected fluid mixture component | 64 |
20080223146 | METHOD AND APPARATUS FOR INVESTIGATING A GAS-LIQUID MIXTURE - A method and system are provided for investigating a gas-liquid fluid mixture as it is conveyed in a conduit having a first constriction region providing a reduced conduit cross section. The method and system include inducing the mixture to exhibit swirling flow in the first constriction region, thereby separating the liquid from the gas, and determining one or more properties of the fluid in the first constriction region. | 09-18-2008 |
20080276723 | APPARATUS AND METHOD FOR PROVIDING A STRATIFICATION METRIC OF A MULTIPHASE FLUID FLOWING WITHIN A PIPE - A method and apparatus for determining a level of stratification of a multiphase fluid flow passing through a pipe is provided. The method includes, and the apparatus is operable to perform, the steps of: 1) determining a flow velocity of the multiphase fluid flow passing through a first radial region of the pipe; 2) determining a flow velocity of a portion of the multiphase fluid flow passing within a second radial region of the pipe, wherein the second radial region is above the first radial region; and 3) comparing the flow velocity from the first radial region and flow velocity from the second radial region to determine information indicative of the stratification of the multiphase fluid flow. | 11-13-2008 |
20080295607 | Method of Measuring the Ratio of Gas Volume Flow Rate to the Volume Flow Rate of a Multiphase Hydrocarbon Mixture - The invention relates to a method of measuring the ratio of gas volume flow rate to the volume flow rate of a multiphase hydrocarbon mixture. The inventive method comprises the following steps consisting in: sampling (A) the gas and liquid in the pipeline and measuring the ratio (α | 12-04-2008 |
20080307891 | Method and Apparatus for Measuring the Density of One Component in a Multi-Component Flow - A method and apparatus is disclosed that determines the density of one component in a multi-component flow through a conduit. The multi-component flow is separated into two streams ( | 12-18-2008 |
20090000390 | Method and Apparatus for Measuring the Flow Rates of the Individual Phases of a Multiphase Fluid Mixture - A flow rate measuring method for a multiphase fluid mixture FM flowing into a line LN, the fluid mixture FM comprising at least a first and a second phase, the method comprising the steps of: passing the fluid mixture through a Venturi tube in which the fluid mixture is subjected to a pressure drop, continuously measuring by means of said Venturi tube permanently installed on the line a differential pressure across the Venturi tube ΔP | 01-01-2009 |
20090084192 | HYDRAULICS MANAGEMENT FOR BOUNDED IMPLEMENTS - A method of allocating hydraulic fluid between actuators in a machine accepts a first command to provide a first requested fluid flow to a first actuator, wherein the first actuator is a bounded actuator such as a steering actuator, and a second command to provide a second requested fluid flow to a second actuator. The system adjusts the first and second commands to produce adjusted first and second commands corresponding to adjusted first and second fluid flows, such that the sum of the adjusted first and second fluid flows is less than or equal to a maximum available flow and the adjusted first fluid flow meets or exceeds the lesser of the first requested fluid flow and a threshold curve that is a function of engine speed or other variable. | 04-02-2009 |
20090126502 | Method and Apparatus for Tomographic Multiphase Flow Measurements - A method for determining the flow rates of a fluid comprising a multi-component mixture of a gas and at least one liquid in a pipe, the method comprising the following steps: a) the multi-component mixture flow is conditioned to create a symmetrical annular gas concentration flow condition, b) the density distribution and/or dielectric constant distribution in said symmetrical flow within a cross-section of the pipe is determined, c) a function describing the radial distribution of density and/or radial distribution of dielectric constant is determined, d) the velocity of the multi-component mixture is determined, e) the temperature and pressure are obtained, and, f) based on the knowledge of densities and/or dielectric constants of the components of the fluid mixture, and the result from the above steps a-e, the volume and/or mass flow rates of the gas and liquid components of the fluid mixture are calculated. An apparatus for performing the method is also disclosed. | 05-21-2009 |
20090139345 | ISOKINETIC SAMPLING METHOD AND SYSTEM FOR MULTIPHASE FLOW FROM SUBTERRANEAN WELLS - The invention relates in a one aspect to a method or apparatus for measuring flow properties of a multiphase fluid stream flowing in a pipeline comprising means for sampling, with a sampling probe, a portion of the fluid stream; for measuring a differential pressure between a first pressure of the fluid stream in the pipeline and a second pressure of the portion of the fluid stream in the sampling probe; for controlling flow rate of the sampled portion, wherein the flow rate of the sampled portion is controlled to provide for nullification of the differential pressure in order to obtain substantially isokinetic sampling of the fluid stream; for measuring properties of the portion of the fluid stream; and for processing the measured properties to determine the flow properties of the multiphase fluid stream flowing in the pipeline, wherein the above elements do not require- or are performed without the determination of the density of fluid in the fluid stream through nuclear radiation methods. | 06-04-2009 |
20090173165 | SENSOR AND DETECTION DEVICE FOR USE OF THE SENSOR - A sensor of the inductive type comprising at least one support, wherein the support is provided with at least one coil, and wherein the coil is adapted to be fed with a high-frequency signal. The coil or each coil part thereof has its respective windings arranged in one plane and the support is formed of a disc-shaped substrate having a deformation temperature which is at least 1000° C. The windings are provided on the substrate by vapour deposition or etching. The sensor is adapted for operation selected in the frequency range of 1 MHz-1 GHz. Through the substrate and in the centre of said at least one coil there may be arranged a core of ferromagnetic material. The sensor is expediently embeddable with the aid of glass ceramic material or glass material in an aperture in a holder of metal or metal alloy. The sensor is, for example, useful for multiphase measurement of a fluid flow containing a fraction of water, at a pressure selected in the range of 0-1500 bar and a temperature selected in the range of from −50° C. to +250° C. The sensor is particularly useful in a sensor device in which with the aid of glass ceramic material or glass material there is embedded in at least one aperture in the holder a respective capacitive sensor, the holder via an intermediate piece being connected to an attachment flange designed for mounting on pipeline equipment which carries said fluid, so that the holder when so mounted penetrates into the fluid flow. Thus, said water fraction can be detected capacitively and at least partly inductively in a first measuring range and detected inductively in a second measuring range. | 07-09-2009 |
20090199653 | MULTI-PHASE FLOWMETER - In order to extract a part of a three-phase flow from a pipe line ( | 08-13-2009 |
20090266175 | APPARATUS AND METHOD FOR CHARACTERIZING TWO PHASE FLUID FLOW - An apparatus (and corresponding method) for characterizing the fluid properties of a two phase fluid includes a restriction element (e.g., orifice plate or nozzle) along the flow path of the two phase fluid. At least one temperature sensor measures temperature of the two phase fluid flowing through the restriction element. A pressure sensor measures the pressure downstream of the restriction element. Time-of-flight measurements of pulses passing through the two phase fluid are made. The speed of sound within the two phase fluid is calculated from the time-of-flight measurements. At least one fluid property (e.g., a vapor phase fraction) of the two phase fluid is calculated from the measured pressure, the measured temperature, and the calculated speed of sound. | 10-29-2009 |
20090293634 | METHOD OF MEASURING MULTIPHASE FLOW - Multi-phase flow is estimated in a flow meter having a first and a second stage by empirically deriving an algorithm for the water and gas fractions, measuring pressures within the flow meter, and estimating a total mass flow rate based on the measured pressures. A corrected total mass flow rate is calculated using a liquid/gas slip correction technique. The oil fraction can be determined from the corrected total mass flow rate and gas and water fractions. | 12-03-2009 |
20100011875 | SYSTEM AND METHOD TO MINIMIZE IMPACT OF SLUG EVENTS - A system for stabilizing flow in a pipeline is provided. The system includes at least one of an internal supply or an external supply configured to provide fluid into the pipeline such that a ratio of liquid to gas in the flow is within an acceptable range. The system also includes one or more sensors configured to indicate the ratio of liquid to gas in the fluid. The system further includes at least one valve configured to regulate a flow of the fluid from the internal supply or the external supply into the pipeline based upon the ratio indicated by the one or more sensors. | 01-21-2010 |
20100011876 | CONTROL SYSTEM AND METHOD TO DETECT AND MINIMIZE IMPACT OF SLUG EVENTS - A system for detecting and controlling a slug event in a flow through a pipeline is provided. The system includes multiple sensors configured to indicate one or more parameters of the flow for a slug at multiple locations in the pipeline. The system also includes a controller configured to receive one or more response signals corresponding to at least one of the parameters from the sensors. The system further includes a variable speed drive system electrically coupled to the controller and a compressor pumping fluid in the pipeline such that a ratio of liquid to gas is within an acceptable range, wherein the variable speed drive is configured to receive one or more signals from the controller and further configured to regulate at least one of a translational or a rotational speed or a power of the compressor based upon the signals. The system also includes a display unit coupled to the controller, the display unit configured to output the plurality of signals received from the controller. | 01-21-2010 |
20100031754 | ROBUST SYSTEM AND METHOD FOR OBTAINING A LIQUID OR GAS SAMPLE FROM A MULTIPHASE MIXTURE FLOWING IN A HYDROCARBON PIPELINE - This disclosure relates in general to robust and efficient methods and systems for obtaining a sample of a liquid or gas phase from a multiphase mixture flowing in a pipeline, where the multiphase mixture comprises oil and/or a gaseous hydrocarbon and the pipeline is configured for the transport of the oil and/or gaseous hydrocarbon. In certain aspects of the present invention, after obtaining the sample of the liquid or gas phase of the multiphase mixture, sensing devices, meters, sensor systems or the like may be used to analyze the properties of the collected liquid phase sample. | 02-11-2010 |
20100064820 | Method and device for measuring a multiple-phase fluid flowing through a pipe - The invention relates to a method and device for measuring a multiple-phase fluid flowing through a pipe. The inventive method comprises the following steps in which: a fluid is illuminated using a first coaxial probe ( | 03-18-2010 |
20100071475 | DEVICE FOR MONITORING THE FLOW OF WATER VAPOR - Reliably and quickly acting device that can be cheaply employed for monitoring the flow of water vapor, having a water vapor line extending between a switching valve and a cross-section connection, in particular a nozzle, and a temperature sensor monitoring the temperature in the line. | 03-25-2010 |
20100199779 | MULTIPHASE FLOWMETER USING A COMBINATION OF PRESSURE DIFFERENTIALS AND ULTRASOUND DOPPLER READINGS - A multiphase flowmeter, and a method of analyzing and measuring multiphase flow is described. The body of the multiphase flowmeter consists of the following components. It has a straight flow pipe in which two orifice plates a lodged near the extremities. At each of these two locations, a pressure differential transmitter measures the pressure drop that occurs as the fluid passes through the orifice plates. Along the length between the orifice plates, an ultrasound Doppler sensor measures the volume flow rate of the multiphase fluid, a pressure transmitter measures the in-pipe pressure and a temperature sensor measures the temperature. From the signals obtained from the above sensors, an overall analysis of the multiphase fluid flow is performed providing a complete set of flow measurement data for the mixture and for each of the three phases consisting of oil, water and gas. | 08-12-2010 |
20100199780 | Method of Measuring Multiphase Flow - Multi-phase flow is estimated in a flow meter having a first and a second stage by empirically deriving an algorithm for the water and gas fractions, measuring pressures within the flow meter, and estimating a total mass flow rate based on the measured pressures. A corrected total mass flow rate is calculated using a liquid/gas slip correction technique. The oil fraction can be determined from the corrected total mass flow rate and gas and water fractions. | 08-12-2010 |
20110072909 | FLOW MEASUREMENT USING NEAR FIELD MICROWAVES - A flow meter for measuring flow rate and flow composition of a process fluid includes a microwave source configured to generate a microwave signal. A probe tip is coupled to the microwave source and in near field proximity to the process fluid. The probe tip is configured to apply the microwave signal to the process fluid. A microwave detector coupled to the probe tip is configured to detect a near field microwave signal from the process fluid in response to the applied microwave signal. Flow calculation circuitry determines flow rate and/or composition of the process fluid as a function of the detected microwave signal. | 03-31-2011 |
20110138928 | METHOD OF MEASURING FLOW PROPERTIES OF A MULTIPHASE FLUID - A method and system for measuring a property of a multiphase fluid comprising a mixture of at least an oil phase and a water phase travelling through a conduit, the method comprising measuring the thickness of the liquid mixture, measuring the permittivity of a portion of the multiphase fluid, combining the thickness measurement with the permittivity measurement to obtain a derived value for the permittivity of the liquid mixture, and using at least the derived permittivity of the liquid mixture and a relationship between a single phase liquid property and a corresponding two-phase property of the liquid mixture, to obtain a calculated water-to-liquid ratio of the liquid mixture. | 06-16-2011 |
20110146413 | CYCLONIC SENSOR FOR MULTIPHASE COMPOSITION MEASUREMENT - This invention relates to a cyclonic sensor chamber and a multiphase composition meter employing a sensor array compatible with such a sensor chamber. The sensor geometry imparts centripetal force to radially stratify a multiphase composition, and permits radial measurement of the entire flow composition in a linearly independent manner at different regions within the sensor. An appropriate array of sensors may be chosen to measure the properties of the composition from the group of testable composition properties consisting of speed of propagation of ultrasonic waves; amplitude modulation or attenuation of ultrasonic waves, X-rays, gamma rays, microwaves, infrared, visible and ultraviolet light; phase modulation or standing wave resonance of ultrasonic waves and microwaves; spin states of nuclei of nuclear magnetic resonance; and complex impedance, capacitance, inductance, mutual inductance, conductance, frequency response and phase delay. The sensor may be used to measure the water cut in an oil-well flow. | 06-23-2011 |
20110162458 | FLOW SENSOR AND ANALYSIS DEVICE PROVIDED WITH SAME - The present invention relates to a flow rate sensor | 07-07-2011 |
20110252893 | DEVICE FOR MEASURING RATES IN INDIVIDUAL PHASES OF A MULTIPHASE FLOW - A device for measuring rates in individual phases of a multiphase flow, such as in flow of hydrocarbon fluid through a pipe line, comprising a venturi having, seen in the flow direction thereof, a first inlet portion with deceasing cross-section, a second intermediate portion with mainly uniform cross-section, and a third outlet portion with increasing cross-section, and being situated within the pipe line. According to the present invention, the venturi is provided with a number of sensors, and the sensors are arranged in mutual distance at different cross-section areas along at least the first of the three portion of the venturi as thereby being able to determine a pressure profile along the venturi as a base for estimating rates for actual rates of the flow. | 10-20-2011 |
20110283809 | MULTIPHASE FLOWMETER WITH BATCH SEPARATION - A process fluid flow system is provided having an input, an output, and a plurality of fluid circuits disposed between the input and output. At least one valve is disposed to selectably cause process fluid to flow through either a first circuit of the plurality of circuits, or a second circuit of the plurality of circuits. Process fluid flows through the first circuit during normal production, and through the second circuit during process fluid sequestration. A process fluid flow measurement device is operably interposed between the input and output and configured to measure total flow through the system. A separator is disposed in the second circuit and is arranged to allow the process fluid to separate gravitationally over time into immiscible components of the process fluid, the separator having a known internal volume. A guided wave radar level measurement device is preferably disposed to measure heights of interfaces within the separator. A controller is coupled to at least one valve, the process fluid flow measurement system, and the guided wave radar level measurement device. The controller is configured to combine total process fluid flow information from the process fluid flow measurement device with measured height information from the guided wave level measurement device to provide fractional flow rates for at least one immiscible component of the process fluid. | 11-24-2011 |
20110290035 | Method and Apparatus for Measurement of Composition and Flow Rates of a Wet Gas - A method for determining the flow rates of a fluid comprising a multi-component mixture of a gas and at least one liquid in a pipe, the method comprising the following steps: a. the permittivity of the multi-component mixture is determined based on an electromagnetic measurement, b. a statistical parameter related to the electromagnetic measurement is calculated, c. the density of the multi-component is determined, d. the temperature and pressure are obtained, e. based on the knowledge of densities and dielectric constants of the components of the fluid mixture, and the result from the above steps a-c, the water fraction of the multi-component mixture is calculated, characterized by a method for determining the liquid fraction and flow rates of the multi-component mixture where f. the liquid fraction is calculated based on the statistical parameter from step b and the calculated water fraction from step e using an empirical derived curve, g. the velocity of the multi-component mixture is derived, and h. based on the step a-g, the flow rate of the individual components of the multi-component mixture is calculated. An apparatus for performing the method is also disclosed. | 12-01-2011 |
20110314929 | METHOD AND VORTEX FLOW MEASURING DEVICE FOR MONITORING AND/OR MEASURING WALL FLOW OF A MEDIUM OF TWO OR MORE PHASES FLOWING IN A PIPELINE - A method for monitoring and/or measuring an, at least at times, two-phase medium flowing in a pipeline, and having a first phase, especially a gaseous first phase, with a first density and a second phase, especially a liquid second phase, having a second density different from the first density. The method is performed with a vortex flow measuring device, which has at least one measuring tube inserted into the pipeline, a bluff body and a vortex sensor. In such case, the vortex sensor includes a sensitive section that responds to pressure fluctuations, and that is arranged at least partially adjoining the wall of the measuring tube. In the method, a wall flow of a second phase of a two or more phase medium is detected by the vortex flow measuring device, when a measurement signal which contains characteristic features for an interaction of a wall flow of the second phase of a flowing medium flowing along a wall of the measuring tube with the sensitive section of the first vortex sensor is registered by the vortex sensor. | 12-29-2011 |
20120017697 | Multiphase Flow Meter - A multiphase meter for a hydrocarbon-containing flow is provided to estimate the relative amounts of water, oil, and gas in the flow without separating the gas and liquid phases of the flow. The meter comprises a chamber for receiving and directing a flow vertically upward. A first capacitor assembly measures the capacitance about a central flow region of the chamber. A second capacitor assembly measures the capacitance about a peripheral flow region. The meter estimates the water content as a function of the peripheral capacitance and the gas content as a function of the arithmetic difference between the peripheral and central capacitance. | 01-26-2012 |
20120024080 | APPARATUS, METHOD AND SYSTEM FOR CALIBRATING A LIQUID DISPENSING SYSTEM - An apparatus, method and system providing for calibration and/or control of a liquid dispensing system is disclosed. The hand-held calibration auditing tool includes a flow meter ( | 02-02-2012 |
20120055262 | INTEGRATED ACOUSTIC PHASE SEPARATOR AND MULTIPHASE FLUID COMPOSITION MONITORING APPARATUS AND METHOD - An apparatus and method for down hole gas separation from the multiphase fluid flowing in a wellbore or a pipe, for determining the quantities of the individual components of the liquid and the flow rate of the liquid, and for remixing the component parts of the fluid after which the gas volume may be measured, without affecting the flow stream, are described. Acoustic radiation force is employed to separate gas from the liquid, thereby permitting measurements to be separately made for these two components; the liquid (oil/water) composition is determined from ultrasonic resonances; and the gas volume is determined from capacitance measurements. Since the fluid flows around and through the component parts of the apparatus, there is little pressure difference, and no protection is required from high pressure differentials. | 03-08-2012 |
20120096947 | CHRISTMAS TREE WITH INTERNALLY POSITIONED FLOWMETER - A measurement device is disclosed which includes a structure adapted to be removably coupled to a Christmas tree, a sleeve operatively coupled to the structure and a flowmeter positioned at least partially within the sleeve. | 04-26-2012 |
20120111124 | METHOD AND APPARATUS FOR DETERMINING PHASE FRACTIONS OF MULTIPHASE FLOWS - A multiphase meter for use in the quantification of the individual phase fractions of a multiphase flow has: a resonant cavity through which, in use, a multiphase fluid flows, a signal generator configured to apply electromagnetic energy at a range of frequencies to the cavity, and an enhancing and/or suppressing facility for enhancing and/or suppressing resonant modes of a signal produced resultant to the application of electromagnetic energy to the cavity. | 05-10-2012 |
20120132010 | METHOD FOR DETERMINING THE FLOW RATES OF A FIRST GAS PHASE AND AT LEAST ONE SECOND LIQUID PHASE PRESENT IN A POLYPHASIC FLUID - A method for determining a first flow rate of a gas phase and a second flow rate of at least one liquid phase present in a polyphasic fluid circulating in a conduit is presented. The method essentially comprises circulating the polyphasic fluid through the neck of a venturi delimited by the conduit. The method further comprises estimating the first flow rate and the second flow rate by using a measured pressure difference of the fluid through the neck and a property representative of the relative surface occupied by the gas phase relative to a total surface over a cross-section of the neck. The step of estimating the first flow rate and the second flow rate further comprises (a1) calculating an amount representative of the liquid phase present in the gas rich core relative to the total amount of liquid phase in the neck and calculating the first and second flow rate as a function of the amount representative of the liquid phase present in the core calculated during step (a1). | 05-31-2012 |
20120216625 | System, Method and Apparatus for Measuring Multiphase Flow - A system, method and apparatus for measuring fluid properties of a fluid flow having four phases, including a fractional measurement device configured to determine respective fractional measurements of each of four phases of fluids flowing in a fluid flow; and a behavioral modeling device configured to determine, based on the respective fractional measurements of each of the four phases of fluids, respective flow rates for each of the four phases of fluids. | 08-30-2012 |
20120216626 | Wet Gas Measurement - A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. A first apparent property of the multi-phase process fluid based on the motion of the vibratable flowtube is determined, and an apparent intermediate value associated with the multi-phase process fluid based on the first apparent property is determined. A corrected intermediate value is determined based on a mapping between the intermediate value and the corrected intermediate value. A phase-specific property of a phase of the multi-phase process fluid is determined based on the corrected intermediate value. | 08-30-2012 |
20120234103 | APPARATUS AND METHOD FOR MEASURING THE FLOW-RATE OF A MULTIPHASE FLUID STREAM - An apparatus for measuring a multiphase fluid stream which flows in a pipe ( | 09-20-2012 |
20120255367 | POSITIVE DISPLACEMENT GAS-LIQUID TWO-PHASE FLOWMETER AND MULTI PHASE FLOW RATE MEASUREMENT SYSTEM - Disclosed is a positive displacement gas-liquid two-phase flowmeter and a multi phase flow rate measurement system, and more specifically to a positive displacement gas-liquid two-phase flowmeter capable of measuring a flow rate of each of a gas and a liquid of a gas-liquid two-phase flow including the liquid and the gas flowing in a pipe line and a multiphase flow rate measurement system that includes the flowmeter. | 10-11-2012 |
20130068035 | METHOD AND APPARATUS FOR DETERMINING THE PHASE COMPOSITIONS OF A MULTIPHASE FLUID FLOW - Systems and methods are provided that relate to determining the phase compositions of a multiphase fluid flow in a fluid line, including determining a flow velocity parameter which is related to the flow velocity of the fluid flow in the fluid line using a flow sensor and obtaining a vibration signal from the fluid flow using a vibration sensor comprising a target disposed in the fluid flow which vibrates in response to fluid flow in the fluid line. The signal may be analysed to determine an energy parameter which is related to the energy of the vibration signal within a frequency band, and a phase composition parameter, such as a dryness parameter, relating to the phase compositions of the fluid flow is determined using the flow velocity parameter and the energy parameter. An apparatus for determining the phase compositions of a multiphase fluid flow in a fluid line is disclosed. | 03-21-2013 |
20130174667 | MAGNET MODULE FOR A NUCLEAR MAGNETIC FLOW METER - A magnet module for a nuclear magnetic flow meter including at least one permanent magnet and a jacket. The jacket protects the at least one permanent magnet against peeling of magnet material by mechanical loads when the magnet module is introduced into a magnet receiver of the flow meter, simplifies introduction of the permanent magnets into the magnet receivers by reduced friction between the magnet module and the magnet receivers, and influences the magnetic field which generated by the permanent magnets. | 07-11-2013 |
20130174668 | Flow Meter System and Method for Measuring An Amount of Liquid in A Largely Gaseous Multiphase Flow - Both a flow meter system and method are provided for accurately measuring the percentage amounts of liquid and gas phases in a multiphase flow through a conduit when the liquid phase constitutes a small minority portion (e.g., less than about 20%) of the multiphase flow. The system includes a flow meter that includes a differential pressure sensor connected across a Venturi in the conduit, and a dual energy fraction meter, each of which is operably connected to a digital processor. The system further includes a pump connected to the conduit upstream of the flow meter that introduces at least one pulse of a known quantity of liquid, the pulse being sufficient in volume to temporarily increase the liquid phase by a detectable amount. After the liquid pulse is introduced into the multi-phase flow, the digital processor computes the changes in the percentage amounts of the liquid and gas phases which should have occurred as a result of the pulse, and compares the computed changes with the actual changes measured by the flow meter in order to calibrate the flow meter. The measured increase in the liquid flow is then subtracted from the total measured liquid flow to determine the actual percentage of liquid flow. | 07-11-2013 |
20130247684 | BATCH-TYPE MULTIPHASE FLOW RATE MEASUREMENT DEVICE AND FLOW RATE MEASUREMENT METHOD - A multiphase flow rate measurement device including a gas-liquid separator ( | 09-26-2013 |
20130319132 | Apparatus for Measuring at Least One Characteristic Value of a Multiphase Fluid Mixture - An apparatus ( | 12-05-2013 |
20130327154 | MEASURING PROPERTIES OF A MULTIPHASE MIXTURE FLOW - Properties of a multiphase mixture flow are measured in a blind-tee. The measured properties include the permittivity and/or the conductivity of the multiphase mixture flowing through a conduit. The permittivity and/or conductivity are measured at liquid-rich region(s) in a blind-tee section of the conduit and are used to determine properties of a liquid phase of the multiphase fluid flow, including one of the water conductivity, water in liquid ratio and water volume fraction. One or more electromagnetic sensors may be used in the blind-tee to measure the permittivity and/or conductivity. The sensors may be in contact with the multiphase flow or be disposed behind a dielectric window. | 12-12-2013 |
20140013857 | Multiphase Flowmeter and Liquid Film Measurement Method - A flow meter apparatus and method are presented for measuring a flow rate of a multiphase fluid mixture comprising at least one gas phase and one liquid phase. The flow meter comprises a pipe section and measurement section through which the mixture flows. The flow meter also comprises a fraction measurement device adapted to estimate a representative fraction of the gas phase and/or liquid phase of the mixture passing at the measurement section. Moreover, the flow meter preferably comprises at least one ultrasonic sensor arranged to estimate a characteristic, such as liquid film thickness or velocity, of a portion of the liquid phase flowing as liquid film along a wall of the pipe section. The characteristic is preferably used to correct the estimated representative fraction of the gas phase and/or liquid phase when the gas phase flows in a core of the pipe section, and a portion of the liquid phase flows partially as liquid film along the wall of the pipe section and another portion of the liquid phase flows partially as liquid droplets in the core of the pipe section. | 01-16-2014 |
20140060204 | MULTIPHASE FLOW DETECTOR - The multiphase flow detector detects the different fractions of different phases of fluids, i.e., oil, water, and/or gas, flowing through a pipeline or the like. The detector includes a plurality of capacitive and resistive probes extending radially into an oil delivery pipeline. The probes preferably have various different lengths from one another to detect differences in fluid phases at differing distances from the pipe wall as the fluid flows randomly therethrough. The capacitive and resistive probes are preferably evenly spaced from one another in an alternating circumferential array. Two rings or stations of such probes are preferably installed in the pipe to measure the velocity of flow in the pipe, as well as the fluid fractions flowing therethrough. Appropriate algorithms enable a central controller to determine the fraction differences between oil and water and between oil and gas, and therefore to determine the fraction difference between water and gas. | 03-06-2014 |
20140060205 | APPARATUS AND METHOD FOR MEASURING THE FLOW-RATE OF DIFFERENT FLUIDS PRESENT IN MULTIPHASE STREAMS - The present invention relates to an apparatus and method for measuring the flow-rate of different fluids present in a plurality of distinct multiphase streams (C), in transit, each through a respective main flow pipe ( | 03-06-2014 |
20140109684 | INTEGRATED ACOUSTIC PHASE SEPARATOR AND MULTIPHASE FLUID COMPOSITION MONITORING APPARATUS AND METHOD - An apparatus and method for down hole gas separation from the multiphase fluid flowing in a wellbore or a pipe, for determining the quantities of the individual components of the liquid and the flow rate of the liquid, and for remixing the component parts of the fluid after which the gas volume may be measured, without affecting the flow stream, are described. Acoustic radiation force is employed to separate gas from the liquid, thereby permitting measurements to be separately made for these two components; the liquid (oil/water) composition is determined from ultrasonic resonances; and the gas volume is determined from capacitance measurements. Since the fluid flows around and through the component parts of the apparatus, there is little pressure difference, and no protection is required from high pressure differentials. | 04-24-2014 |
20140190271 | HIGH-PRECISION DETERMINATION OF THE MASS PROPORTION OF A COMPONENT IN A MULTI-COMPONENT FLUID - A method to determine a mass proportion of a first component of a multi-component fluid is provided that includes separating the first component in a separation step at least in part from the multi-component fluid, determining at least two reference flow rates, selected from a flow rate of the multi-component fluid supplied to the separation step, a flow rate of a residual fluid resulting from the separation of the first component, and a flow rate of a separation fluid accumulating in the separation step, and determining the mass proportion of the first component from the selected reference flow rates, taking into account a non-separated residual content of the first component in the residual fluid. An extraneous content of an additional separated component of the multi-component fluid is additionally taken into account. | 07-10-2014 |
20140260659 | MULTIPHASE FLOW MEASUREMENT USING ELECTROMAGNETIC SENSORS - A method for determining a phase composition of a multiphase mixture flowing through a pipe is presented. The method includes exciting one or more patch antennas configured to operate over the range of frequencies. Further, the method includes acquiring at least one of a transmitted signal and a reflected signal over the range of frequencies from the one or more patch antennas. Moreover, the method includes estimating the phase composition of the multiphase mixture based on a group delay determined from at least one of the transmitted signal and the reflected signal. A system for determining a phase composition of a multiphase mixture flowing through a pipe is also presented. | 09-18-2014 |
20140260660 | MULTIPHASE FLOW MEASUREMENT - A flow measuring device includes a first sensor device that responds to one stimulus caused by a fluid medium flowing through a measurement section by registering a first measure representing a first type of physical characteristic of the fluid medium, and a second sensor device that responds to another stimulus caused by the fluid medium by registering a second measure representing a second type of physical characteristic of the fluid medium, the second measure being independent from the first measure, and the first and second measures both being dependent on the flow of the first fluid and on the flow of the second fluid in the fluid medium in the measurement section, the first measure and the second measure being sufficient to solve both a first function that defines the flow of the first fluid and a second function that defines the flow of the second fluid. | 09-18-2014 |
20140311251 | STEAM QUALITY AND FLOW RATE MEASUREMENT SYSTEM - A steam quality and flow rate measurement system is described. Embodiments of the system include a steam quality measuring device having a converging/diverging nozzle and ceramic spacer. The steam quality measuring device can be adapted to measure an impedance of a two-phase steam to determine steam quality. The converging/diverging nozzle can be implemented to mix the two-phase flow and reduce pressure loss. The ceramic spacer can be positioned such that steam is in a cross flow when interfacing with the ceramic spacer inside the steam quality measuring device. By placing the spacer in such a position, an electrically conductive liquid phase can be prevented from coating a surface of the ceramic spacer. | 10-23-2014 |
20140331783 | MULTIPHASE FLOWMETER - Method and apparatus for measuring properties of a flowing multiphase mixture uses a plurality of electrodes or plurality of microwave antennas to rapidly and repeatedly measure an electrical property of the multiphase mixture over a period of time. A computer processes the rapid and repeated measurements to determine a succession of values of permittivity and/or conductivity of a liquid phase of the multiphase mixture within the said period of time and further processes the succession of values of a permittivity and/or a conductivity of the liquid phase to determine at least one of a water-in-liquid-ratio and a liquid holdup of the multiphase mixture. A conduit for the multiphase flow possibly includes a Venturi and the processor takes pressure and differential pressure as further inputs to compute flow rates for each phase in the multiphase mixture. | 11-13-2014 |
20150033871 | Monitoring System and Sight Port for Liquid-Gas Transport Line - A monitoring system for use in a liquid-gas mixture transport line includes a chamber containing a phase separator, a liquid flow measurement device downstream of the phase separator, a collector trap intermediate the phase separator and the flow measurement device, and an overflow opening downstream of the flow measurement device. A sight port is provided in the chamber. A chamber inlet is elevated in relation to the collector trap, the flow measurement device and a chamber outlet. In an embodiment of the invention, the chamber is double-walled with the sight port having a lens in each wall and a filler media, such as inert gas, between the lenses. In one embodiment, the filler media is heated to control formation of condensation or solid sulfur on the lens interior of the chamber. In other embodiments, a sight port of the present invention is provided in a liquid flow transport line. | 02-05-2015 |
20150068321 | METHOD FOR MEASURING THE FLOW RATE OF A MULTI-PHASE LIQUID - The method for measuring the flow rate of a multi-phase liquid determines the speed of sound and the density of each phase, and determining the speed of sound in each of the phases of the liquid within a working temperature range. The amplitudes of the vibrations of the pipe along which the multi-phase liquid flows and the frequencies corresponding thereto are determined A range of frequencies with maximum amplitude values is selected. The measured range of frequencies is divided into three parts—the low frequencies corresponding to the gas phase, the mid-frequencies corresponding to the oil phase, the high frequencies corresponding to the water phase. In each of the parts of said frequencies the maximum values of the amplitude are isolated after the use of fast Fourier transforms. Then the volumetric flow rate of each phase of the liquid is calculated on the basis of a given formula. | 03-12-2015 |
20150096385 | METHOD OF, AND APPARATUS FOR, MEASURING THE PHYSICAL PROPERTIES OF TWO-PHASE FLUIDS - There is provided a method of measuring the physical properties of a two-phase fluid using at least one piezoelectric oscillator immersed in the two-phase fluid, the two-phase fluid comprising a gas fraction and a liquid fraction, the method comprising: a) measuring the resonant frequency of the or each piezoelectric oscillator as a function of time; and b) determining, from the or each resonant frequency, at least one physical property of the two-phase fluid to characterise the two-phase fluid. | 04-09-2015 |
20150101419 | Phase Detection in Multi-Phase Fluids - The present disclosure relates to phase detection in multi-phase fluids where two fluid phases can be present in the fluid. Phase detection apparatus and methods are disclosed for determining the phase(s) (e.g., supercritical, liquid, and/or gas) of a fluid in a multi-phase fluid system, such as carbon dioxide based separation and chromatography system. | 04-16-2015 |
20150128722 | SENSING APPARATUS AND METHOD - A method of detecting one or more blocked sampling holes in a pipe of an aspirated smoke detector system. The method includes ascertaining the base flow of fluid through a particle detector using a flow sensor; monitoring subsequent flow through the particle detector; comparing the subsequent flow with the base flow; and indicating a fault if the difference between the base flow and the subsequent flow exceeds a predetermined threshold. | 05-14-2015 |
20150300859 | TWO-PHASE FLOW SENSOR USING CROSS-FLOW-INDUCED VIBRATIONS - A sensor system detects the occurrence of two-phase flow by comparing records of fluidelastic force coefficients, which are characteristically different for single-phase and two-phase flows. A baseline of measurements is obtained for a single phase flow, and a baseline of measurements is obtained for a two-phase flow. Measurements of the amplitude and phase of the fluidelastic forces are recorded, and the corresponding fluidelastic force coefficients computed. The fluidelastic force coefficients can be determined for any flow, and compared to the baselines to determine whether the flow is a single-phase or two-phase flow. | 10-22-2015 |
20150308869 | FLOW DATA ACQUISITION AND TELEMETRY PROCESSING SYSTEMS - Processing electronics provide flow data acquisition and telemetry for multiphase flow tomographic arrays. The processing electronics convert sensed flow condition data obtained by ultrasonic transceiver tomography arrays into a serial digital data to minimize both the number of external feedthroughs and also the bandwidth required for transmission. The processing electronics also sends the full measured waveforms from each of the transceivers in the tomographic arrays. | 10-29-2015 |
20150316402 | METHOD AND APPARATUS FOR MULTIPHASE FLOW MEASUREMENTS IN THE PRESENCE OF PIPE-WALL DEPOSITS - A method for determining the flow rates of a fluid comprising a multi-component mixture comprising the following steps:
| 11-05-2015 |
20160054161 | METHOD AND APPARATUS TO DETECT CONTAMINANTS IN PRESSURIZED FLUID FLOWS - Method and apparatus for the detection and measurement of contaminant concentration within pressurized fluid flows in real-time. The provided method and apparatus allow for real-time detection of black powder contaminants in pressurized gas flows by irradiating the flow with electromagnetic waves generated by hermetically-sealed electromagnetic wave radiators and measuring wave characteristics. An image is rendered of the spatial distribution of black powder within the pipe cross section, and mass flow of the contaminated gas is measured. | 02-25-2016 |
20160054162 | Methodologies and Apparatus for The Recognition of Production Tests Stability - A method for analyzing flow of a fluid through a flowmeter is provided. In an embodiment, the method includes receiving multiphase flowmeter data representative of a characteristic of a multiphase fluid flowing through a multiphase flowmeter and segmenting the multiphase flowmeter data into time blocks. The data in the time blocks can be analyzed using time-domain analysis or frequency-domain analysis to determine flow stability. The time-domain analysis can include analyzing time blocks in a time domain to determine whether measurement distribution in the multiphase flowmeter data of the analyzed time blocks represents stable flow of the multiphase fluid. The frequency-domain analysis can include converting the multiphase flowmeter data of the time blocks from a time domain to a frequency domain and identifying time blocks in which contribution of low-frequency components in the frequency domain is below a contribution threshold. Additional systems, devices, and methods are also disclosed. | 02-25-2016 |
20180023989 | METER AND METHOD FOR DETECTON OF A METER HAVING BEEN TAMPERED WITH | 01-25-2018 |
20220136636 | FLOWLINE DEWATERING - A system for dewatering a subsea gas pipeline includes a pig launcher at the pipeline's upper end, which may be at or near the sea surface, and a pig receiver at the pipeline's lower end, which may be at or near the sea floor. A multiphase pump unit is deployed at the pipeline lower end and is configured to provide sea water suction to aid in a pig train being forced downwards through pipeline. The multiphase pump is configured to handle some amount of gas leaking around the pig train. A choke system may allow sea water to enter the flowline, thereby lowering the gas volume fraction (GVF) and preventing the GVF from exceeding the ability of the multiphase pump. For deeper water applications, a second pump may be provided in series that may be a single pump if positioned downstream of the multiphase pump. | 05-05-2022 |