Abstract: A method, apparatus and computer program product for measuring a composition of a multiphase fluid, including radiating a photon beam through the multiphase fluid and measuring radiation absorption by the multiphase fluid for at least three energy levels to obtain measured radiation absorption data, and providing the measured radiation absorption data to processing unit configured to calculate the composition of the multiphase fluid using the measured radiation absorption data, whereby an effect of an injected fluid on the absorption of the photon beam is taken into account during calculation of the composition of the multiphase fluid.

Abstract: 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.

Abstract: A method, apparatus and computer program product for measuring a composition of a multiphase fluid, including radiating a photon beam through the multiphase fluid and measuring radiation absorption by the multiphase fluid for at least three energy levels to obtain measured radiation absorption data, and providing the measured radiation absorption data to processing unit configured to calculate the composition of the multiphase fluid using the measured radiation absorption data, whereby an effect of an injected fluid on the absorption of the photon beam is taken into account during calculation of the composition of the multiphase fluid.

Abstract: An apparatus for performing a well test operation includes a closed chamber testing system having a downhole flow control device. In some embodiments, a method of performing a well test operation includes performing a well test operation with a closed chamber testing system having a downhole flow control device and estimating the reservoir properties based on pressure and flow data measured during the well test operation.

Abstract: A method, apparatus and computer program product for measuring a composition of a multiphase fluid, including radiating a photon beam through the multiphase fluid and measuring radiation absorption by the multiphase fluid for at least three energy levels to obtain measured radiation absorption data, and providing the measured radiation absorption data to processing unit configured to calculate the composition of the multiphase fluid using the measured radiation absorption data, whereby an effect of an injected fluid on the absorption of the photon beam is taken into account during calculation of the composition of the multiphase fluid.

Abstract: A variable throat Venturi flow meter includes an upstream pipe section having an upstream cross-sectional area, a throat section having a variable throat cross-sectional area that is smaller than the upstream cross-sectional area, and a plurality of section-varying elements adapted to temporarily vary the throat cross-sectional area to allow a downhole tool to pass through the throat section.

Abstract: 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.

Abstract: A fluid flow metering device comprises a ball valve locatable in a fluid flow, having at least two transverse bores through the ball valve, a first transverse bore and a second transverse bore. The first transverse bore includes a fluid flow metering apparatus for measuring the rate of fluid flow through the first transverse bore. The ball valve is preferably rotatable between a first metering position where fluid is flowable through the first transverse bore and a second open position where fluid is flowable through the second transverse bore. In addition, the second transverse bore is dimensioned so that a tool is movable through the second transverse bore when the ball valve is in the second open position.

Abstract: A flow rate measuring method for a multiphase fluid mixture flowing into a line is provided. The method comprises the steps of passing the fluid mixture through a Venturi tube having a pressure drop, measuring a differential pressure across the Venturi tube and a line pressure of the fluid mixture, measuring by a second measuring device, measured parameter(s) of the fluid mixture correlated to first and second phase relative quantities, determining estimated parameter(s) of the fluid mixture correlated to the first and second phase relative quantities based on the measured parameter and an extrapolating scheme, determining phase flow rate(s) based on the differential pressure, the line pressure and the measured parameter(s) of the fluid mixture, and determining flow rate(s) based on the differential pressure, the line pressure of the fluid mixture and the estimated parameter(s) of the fluid mixture.

Abstract: A flow rate device for measuring the flow rate of a fluid flowing through a wellbore is disclosed. The flow rate device includes a differential pressure conduit, a flow restrictor insert and a differential pressure measurement device. The differential pressure conduit is locatable in the wellbore, defines an internal bore, and is adapted to include a restriction having a cross-sectional area to increase the velocity of fluid flowing through the differential pressure conduit to create a differential pressure. The differential pressure conduit defining first and second pressure measuring stations axially spaced along the differential pressure conduit. The flow restrictor insert is located in the restriction to reduce the cross-sectional area of the restriction. The flow restrictor insert defines an internal bore having a cross-sectional area less than the cross-sectional area of the restriction. The flow restrictor insert also has a pressure measuring port aligned with the second pressure measuring station.

Abstract: A flow rate device for measuring the flow rate of a fluid flowing through a wellbore is disclosed. The flow rate device includes a differential pressure conduit, a flow restrictor insert and a differential pressure measurement device. The differential pressure conduit is locatable in the wellbore, defines an internal bore, and is adapted to include a restriction having a cross-sectional area to increase the velocity of fluid flowing through the differential pressure conduit to create a differential pressure. The differential pressure conduit defining first and second pressure measuring stations axially spaced along the differential pressure conduit. The flow restrictor insert is located in the restriction to reduce the cross-sectional area of the restriction. The flow restrictor insert defines an internal bore having a cross-sectional area less than the cross-sectional area of the restriction. The flow restrictor insert also has a pressure measuring port aligned with the second pressure measuring station.

Abstract: A variable throat Venturi flow meter includes an upstream pipe section having an upstream cross-sectional area, a throat section having a variable throat cross-sectional area that is smaller than the upstream cross-sectional area, and a plurality of section-varying elements adapted to temporarily vary the throat cross-sectional area to allow a downhole tool to pass through the throat section.

Abstract: A method, apparatus and computer program product for measuring a composition of a multiphase fluid, including radiating a photon beam through the multiphase fluid and measuring radiation absorption by the multiphase fluid for at least three energy levels to obtain measured radiation absorption data, and providing the measured radiation absorption data to processing unit configured to calculate the composition of the multiphase fluid using the measured radiation absorption data, whereby an effect of an injected fluid on the absorption of the photon beam is taken into account during calculation of the composition of the multiphase fluid.

Abstract: A method of detecting an additional element from a plurality of other elements forming a multiphase flow. The method comprising: measuring an energy spectrum response based on electromagnetic irradiation of the multiphase flow. Determining a fraction concentration of the other elements forming the multiphase flow based on a lower energy peak in the spectrum response and detecting an additional element in the multiphase flow based on measuring a variation of a higher energy peak in the spectrum response. It is also possible to measure the quantity of the additional element and to compensate the fractional concentrations of the respective n-phase measurements.

Abstract: An apparatus and method is presented for controlling the quality of a mass density measurement of a multiphase fluid mixture including a plurality of fluid fractions and a plurality of constituting elements. The method includes the steps of: submitting a measuring pipe to a flux of high energy photons and measuring count rates; determining a mass density of the multiphase fluid mixture based on count rate measurements in a first and second energy windows; determining an electronic density of the multiphase fluid mixture based on count rate measurements in a third energy window; and comparing the electronic density to the mass density of the multiphase fluid mixture.

Abstract: A fluid flow metering device comprises a ball valve locatable in a fluid flow, having at least two transverse bores through the ball valve, a first transverse bore and a second transverse bore. The first transverse bore includes a fluid flow metering apparatus for measuring the rate of fluid flow through the first transverse bore. The ball valve is preferably rotatable between a first metering position where fluid is flowable through the first transverse bore and a second open position where fluid is flowable through the second transverse bore. In addition, the second transverse bore is dimensioned so that a tool is movable through the second transverse bore when the ball valve is in the second open position.

Abstract: 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 ?Pv and a line pressure of the fluid mixture in the line Pi, punctually measuring at a determined instant by means of a second measuring device removably installed on the line at least one measured parameter of the fluid mixture correlated to the first phase quantity relatively to the second phase quantity, continuously determining at least one estimated parameter of the fluid mixture correlated to the first phase quantity relatively to the second phase quantity based on the punctually measured parameter and an extrapolating scheme, and determining at least one phase flow rate base

Abstract: A method for controlling the quality of a mass density measurement of a multiphase fluid mixture FM comprising a plurality of fluid fractions and a plurality of constituting elements, the method comprises the steps of: submitting a measuring pipe 3 to a flux of high energy photons and measuring count rates, the measuring pipe being arranged to let the photons pass through the multiphase fluid mixture.

Abstract: A method and apparatus is disclosed for estimating brine water conductivity in a multiphase mixture of brine water and other substances by combining measured mixture permittivity and conductivity with a known or derived relationship between brine water conductivity and brine water permittivity. The mixture permittivity and conductivity are measured using an open-ended coaxial probe or other probes at microwave frequencies. A number of applications for the brine water conductivity estimate are disclosed including making salinity corrections of a dual energy flow meter.

Abstract: A method and apparatus is disclosed for estimating brine water conductivity in a multiphase mixture of brine water and other substances by combining measured mixture permittivity and conductivity with a known or derived relationship between brine water conductivity and brine water permittivity. The mixture permittivity and conductivity are measured using an open-ended coaxial probe or other means at microwave frequencies. A number of applications for the brine water conductivity estimate are disclosed including making salinity corrections of a dual energy flow meter.