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| Number | Title | Issue Date |
| 5099697 | Two and three-phase flow measurement A device for measuring multi-phase fluid flow includes first and second flow meters connected in series for measuring a first and second fluid flow and providing first and second signals indicative of the first and second fluid flow. The device further in... | 03/31/1992 |
| 5095758 | Water cut monitoring means and method The present invention is a water cut monitor which includes a settling tank in which a quantity of fluid from a producing well is accumulated. The fluid is removed as a stream of fluid after a predetermined interval from the accumulation of the fluid by t... | 03/17/1992 |
| 5094112 | Process and a device for carrying out measurements at a foaming liquid This specific density of the liquid/air mixture is measured at successive levels within the reception vessel for the liquid using a reference measurement (Io) representing the specific density of the degasified liquid within a reference measuring path. Th... | 03/10/1992 |
| 5092159 | Method and apparatus utilizing a single nozzle for effecting measurment of steam characteristics A system for measuring steam flowing through a convergent-divergent nozzle at critical flow uses selected measurements along with Napier's Parameter, Dimensionless Critical Steam Flux and Critical Density Ratio to determine steam quality and flow rate.... | 03/03/1992 |
| 5054325 | Flow measurement by collision characterization Particle analysis apparatus (10) in combination with a triboelectric probe (P) and including means (18, 20, 22, 24, 26) to analyze individual particle collisions with the probe as a useful measure of flow conditions--of a fluid with suspended solid partic... | 10/08/1991 |
| 5051922 | Method and apparatus for the measurement of gas/liquid flow A method of determining flowrates of individual constituent phases of a flowing multiphase medium includes digitizing electrical output signals from multiple sensors which produce signals in response to fluctuating high frequency hydrodynamic and physical... | 09/24/1991 |
| 5049823 | Method and device for measuring the qualities of a multiphase fluid A method and a device for measuring the qualities of a fluid including at least two liquids, the two liquids having at least one characteristic intrinsic factor relative to microwaves for a given frequency, such as the loss factor. The characteristic of t... | 09/17/1991 |
| 5048348 | Fluid flow volumetric determination apparatus and method A system and method for obtaining a rapid determination of the volumetric flow rate of a multi-phase fluid stream comprised of crude oil, water and gas. The gaseous component of the stream is first segregated to allow a measurement of the volumetric relat... | 09/17/1991 |
| 5049317 | Metering arrangement for a gas mixture The invention is directed to an arrangement for generating and metering a gas mixture which includes controllable adjusting elements whereby the gas mixture is either conducted through a bypass line past a vaporizer unit to a consumer or is conducted thro... | 09/17/1991 |
| 5036710 | Multi-phase flowmeter A flow meter for measuring liquid and gaseous flow rates in a mixed fluid ow has one or more helical fins (17) positioned between a cylindrical sleeve (10) and a core member (11). Centrifugal effects resulting from fluid flow though channels (29) defined ... | 08/06/1991 |
| 5035146 | Method and apparatus for determining steam quality and/or flow rate from impact force and flow restriction data A method and apparatus for determining the quality of steam and steam flow rate use the thrust or impact force of the steam against a device in the steam flow path and restriction data from a choke or orifice plate. The impact force can be read from a var... | 07/30/1991 |
| 5031466 | Method and apparatus for determining steam quality and mass flow rate Steam quality, namely the mass of steam vapor divided by the total mass of water and steam vapor, is determined by measuring the degree of fluctuation of the differential pressure signal across the orifice of a single sharp-edged orifice plate in the stea... | 07/16/1991 |
| 5031465 | Steam quality and mass flow rate measurement using critical flow choke upstream of an orifice plate A method and apparatus for measuring steam quality and mass flow rate at an injection wellhead includes measuring upstream pressure before a critical flow choke, downstream pressure after the choke and differential pressure across an orifice plate spaced ... | 07/16/1991 |
| 5029482 | Gas/liquid flow measurement using coriolis-based flow meters A method of determining mass flow rate and phase distribution of gas/liquid two-phase flows is disclosed. The method uses a Coriolis-based mass flow meter. Flow streams of known mass flow rate and phase distribution are directed through the meter and corr... | 07/09/1991 |
| 5022274 | High temperature particle velocity meter and associated method The high temperature particle velocity meter is comprised of a pair of spaced apart conducting portions having disposed on each of their upstream edges a first and second non-conducting portion. The bombardment of the particles on the conducting and non-c... | 06/11/1991 |
| 5010771 | Fast response, high sensitivity manometric wind sensor A gas flow alternator cyclically connects a microphone to a dynamic flow ssure and then a reference static flow pressure. The microphone converts the pressures to a resultant alternating differential signal providing a first input to a phase-locked ampli... | 04/30/1991 |
| 5007293 | Two-phase flow meter A device for metering a liquid and a vapor flowing through a conduit generates a spin to the two-phase flow, by which the centrifugal force separates the liquid phase from the vapor phase. Next, the liquid-vapor rate and the isolated annular vapor rate ar... | 04/16/1991 |
| 4975645 | Impedance cross correlation logging tool for two phase flow measurement The logging tool comprises a gas void fraction measurement section (37) consisting of a first set (37) of eight longitudinal electrodes (38) extending parallel to the longitudinal axis of the tool and positioned and regularly spaced around said longitudin... | 12/04/1990 |
| 4974452 | Homogenizing and metering the flow of a multiphase mixture of fluids It is often desirable to meter multiphase fluid flow in pipes (e.g. bore holes). In order to obtain reliable/accurate flow rate measurements it is known to incorporate obstructions in the flow path to cause homogenization. A non-obstructive method of homo... | 12/04/1990 |
| 4974446 | Method and apparatus for analyzing a multi-phase flow in a hydrocarbon well This invention relates to methods and apparatus for analyzing a multi-phase fluid flowing along a hydrocarbon well in order to determine, at each depth, the average static proportion of one of the phases by means of a local measurement. At each depth the ... | 12/04/1990 |
| 4944189 | Ultrasonic speckle velocity measurement method and apparatus An ultrasonic speckle velocity measurement method and apparatus that uses the transmission and reception of ultrasonic waves to detect the velocity of moving members comprised of random scattering bodies. The ultrasonic wave transmitted toward a moving me... | 07/31/1990 |
| 4941778 | Method and apparatus for measuring and regulating the flow rate of powder in a powder spraying device An apparatus and method for accurately determining the quantity of powder flowing in a spraying device includes a power density measuring element for measuring the powder density of the powder/gas mixture flowing in the spraying device and a device for me... | 07/17/1990 |
| 4936870 | Process for determination and control of fuel mass flow in partial oxidation and gasification of a fine-grained to powdery fuel The process for determining and controlling the fuel mass flow in partial oxidation and gasification of a fine-grained to powdery fuel includes particularly drawing the fuel from the supply vessel through a single outlet pipe and feeding the fuel to a dis... | 06/26/1990 |
| 4932788 | Monitoring of the quality of a flowing vapor An improved monitoring of the quality and heat value of a flow of condensable vapor. A small side stream of representative vapor sample is tapped from the flow in the vapor main by utilizing the difference between the dynamic pressure of the vapor at a sa... | 06/12/1990 |
| 4930356 | Flowmeter for gas-entrained solids flow An apparatus and method for the measurement of solids feedrate in a gas-entrained solids flow conveyance system. The apparatus and method of the present invention include a vertical duct connecting a source of solids to the gas-entrained flow conveyance s... | 06/05/1990 |
| 4928524 | Method and apparatus for measuring flow rate of a gas containing condensable components and mists A method and an apparatus for measuring a flow rate of a gas such as a blow by gas in a reciprocating internal combustion engine in which condensable components and mists are contained are disclosed. The method for measuring the flow rate of the gas is ch... | 05/29/1990 |
| 4890500 | Measuring apparatus Apparatus for detecting and counting flowable particulates having means for feeding these particulates at a uniform speed through a measuring area, defined by radiation emitting and sensing means which are arranged in a plane transverse to the feeding dir... | 01/02/1990 |
| 4884457 | Means and method for monitoring the flow of a multi-phase petroleum stream The multi-phase petroleum stream monitor includes two densitometers which measure the density of the petroleum stream at two locations and provides corresponding signals. The temperature and the pressure of the petroleum stream are also measured and corre... | 12/05/1989 |
| 4882934 | Ultrasonic instrument to measure the gas velocity and/or the solids loading in a flowing gas stream A mass flow meter particularly adapted for measuring the mass flow rate of finely divided coal being transmitted through a conduit, for example, as used in large scale fossil fuel power plants. The invention is particularly related to several embodiments ... | 11/28/1989 |
| 4881412 | Flow meters A 3-phase flow meter comprises a pipeline containing pressure and temperature meters and a meter for measuring the density of the combined flow. A proportion of the flow is diverted through a separator which separates out the gas component from the liquid... | 11/21/1989 |
| 4876879 | Apparatus and methods for measuring the density of an unknown fluid using a Coriolis meter Apparatus and accompanying methods for implementing both an accurate densimeter and a net oil computer utilizing a common Coriolis meter assembly is described. This apparatus measures density of an unknown fluid by first determining the period at which bo... | 10/31/1989 |
| 4876897 | Steam quality measurement apparatus and method It has been discovered that vortex flowmeters can be suitably adapted for the measurement of two-phase fluid flows, and particularly for the measurement of steam quality, when disposed in a particular manner in horizontal flowpipes carrying such fluids. M... | 10/31/1989 |
| 4873648 | Watercut monitor device and method A watercut monitor device has an oscillator circuit which generates an analog input signal in response to the capacitance of a capacitance probe through which an oil and water emulsion flows. The frequency of the analog input signal is non-linearly relate... | 10/10/1989 |
| 4872351 | Net oil computer Apparatus and accompanying methods for implementing both an accurate densimeter and a net oil computer utilizing a common Coriolis meter assembly is described. In essence, this apparatus measures density of an unknown fluid by first determining the period... | 10/10/1989 |
| 4860591 | Gas-liquid separation and flow measurement apparatus A gas-liquid mixture consisting in particular of a petroleum product supplied to a feed pipe in a dynamic flow regime is subjected to a vortical gravity-separation process so as to form two separate streams of gas and liquid for separate measurements of t... | 08/29/1989 |
| 4856344 | Measuring flow in a pipe A gradiomanometer 1 measures the difference in pressure between points 3 and 4 to indicate density and hence proportions of two phases (e.g. liquid and gas), each of known density flowing as indicated by arrow 6. A venturi meter 2 measures the difference ... | 08/15/1989 |
| 4852395 | Three phase fluid flow measuring system A multi-phase fluid flow measuring system for measuring the volumetric fractions of gas, water and oil including a centrifugal separator for conducting primary separation of gas from the liquid phase, a conduit section forming a closed chamber and a pisto... | 08/01/1989 |
| 4836032 | Method of determining the quality of steam for stimulating hydrocarbon production The use of an orifice plate in series with a critical flow choke provides a method of measurement for both steam quality and mass flowrate. Neither the orifice plate or the choke alone can be used to measure steam quality and mass flowrate. However, an ex... | 06/06/1989 |
| 4829831 | Device for measuring flow rate in a pipe A device for measuring flow rate of a flowing medium in a pipe having a throttling device received therein, and a meter for measuring pressure differential connected to the throttling device, including a measuring device for determining density of the med... | 05/16/1989 |
| 4817439 | Process and apparatus for measuring two phase flow A two-phase fluid is rotated around a longitudinal axis so as to generate a coaxial flow having a tubular layer (15) formed by the gaseous phase surrounded by a tubular layer (16) formed by the liquid phase. The thicknesses of the tubular layers of the li... | 04/04/1989 |
