Abstract: A device for measuring the internal temperature of a reforming tube including a first structure having an axial part of tubular shape positioned in the lengthwise direction of a reforming tube and a radial part projecting radially towards the central axis of the reforming tube, a second structure of oblong shape having at least one thermocouple made of welded Nicrosil/Nisil conductors arranged longitudinally against the axial part and radially against the radial part, and an outer sheath enveloping the first structure and the second structure.

Abstract: Post-mix burner and use of same for generating a flame curtain, the burner having a longitudinal central dividing wall (5) terminating in a wall head (7) towards the burner top (4), an oxidant inlet compartment (102) and an oxidant outlet compartment (103) on a first side of the central wall (5), a fuel inlet compartment (202) and a fuel outlet compartment on the opposite side of the central wall (5); the wall head (7) presenting a first set of oxidant outlet passages (107) and a second set of fuel outlet passages (207) terminating respectively in first oxidant ejection openings (100) and second fuel ejection openings (200) in an ejection surface (10) at the burner top (4), the oxidant and fuel ejection openings (100, 200) each extending in the longitudinal direction along the ejection surface (10).

Abstract: A sensor of a multiphase flow meter is operated to determine a physical property attributable to multiphase fluid flow in a conduit of the multiphase flow meter. A stationarity of the multiphase fluid flow is determined based on the determined physical property in actual conditions compared to expected noise of the sensor in stationary flow conditions. A flow model variable is selected from a plurality of flow model variables based on a gas content of the multiphase fluid flow and the determined stationarity. The multiphase fluid flow is then modeled by adjusting the selected flow model variable.

Abstract: A device for measuring the internal temperature of a reforming tube including a first structure having an axial part of tubular shape positioned in the lengthwise direction of a reforming tube and a radial part projecting radially towards the central axis of the reforming tube, a second structure of oblong shape having at least one thermocouple made of welded Nicrosil/Nisil conductors arranged longitudinally against the axial part and radially against the radial part, and an outer sheath enveloping the first structure and the second structure.

Abstract: A heat exchanger of the brazed plate and fin type, including a plurality of plates arranged in a mutually parallel manner so as to define at least one set of passages for a first fluid configured to exchange heat with at least a second fluid to flow through, the passages extending in a longitudinal direction and a lateral direction perpendicular to said longitudinal direction, each passage being divided, in the longitudinal direction, into at least one distribution zone and one heat-exchange zone, the at least one distribution zone of a passage comprising a distribution element, said distribution element including a plurality of dividing walls arranged so as to divide said distribution zone into a plurality of channels for the first fluid to flow through.

Abstract: An installation (11) for drilling a well (13) into a soil comprising: —a discharge pipe (25) connected to the well (13) for recovering a drilling mud created by the drilling fluid mixing with components from the soil; —a flow rate sensor (92) to measure at least one parameter of the recovered drilling mud and generate a parameter value; —a calculator (94) connected to the flow rate sensor (92) to receive the parameter value in order to calculate a flow rate of the recovered drilling mud using the parameter value; characterized in that it further comprises a flume (90) having a throat and an approach channel hydraulically connected to the discharge pipe (25) to receive the recovered drilling mud, the measured parameter of the recovered drilling mud being representative of a height of the recovered drilling mud in the approach channel.

Abstract: A method is presented for determining at least one piece of information representative of a phase fraction of a fluid in a pipe. The method comprises the estimation of a number of counts received in each measuring interval based on each piece of representative information determined at a preceding iteration, then calculating a residual comprising a first criterion calculated from probabilities using a given statistical law to measure, for each energy, the number of counts measured in each interval, the given statistical law being parameterized based on the number of estimated counts.

Abstract: A sensor of a multiphase flow meter is operated to determine a physical property attributable to multiphase fluid flow in a conduit of the multiphase flow meter. A stationarity of the multiphase fluid flow is determined based on the determined physical property in actual conditions compared to expected noise of the sensor in stationary flow conditions. A flow model variable is selected from a plurality of flow model variables based on a gas content of the multiphase fluid flow and the determined stationarity. The multiphase fluid flow is then modeled by adjusting the selected flow model variable.

Abstract: An installation (11) for drilling a well (13) into a soil comprising:—a discharge pipe (25) connected to the well (13) for recovering a drilling mud created by the drilling fluid mixing with components from the soil;—a flow rate sensor (92) to measure at least one parameter of the recovered drilling mud and generate a parameter value;—a calculator (94) connected to the flow rate sensor (92) to receive the parameter value in order to calculate a flow rate of the recovered drilling mud using the parameter value; characterized in that it further comprises a flume (90) having a throat and an approach channel hydraulically connected to the discharge pipe (25) to receive the recovered drilling mud, the measured parameter of the recovered drilling mud being representative of a height of the recovered drilling mud in the approach channel.

Abstract: 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).

Abstract: 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.

Abstract: A method is presented for determining at least one piece of information representative of a phase fraction of a fluid in a pipe. The method comprises the estimation of a number of counts received in each measuring interval based on each piece of representative information determined at a preceding iteration, then calculating a residual comprising a first criterion calculated from probabilities using a given statistical law to measure, for each energy, the number of counts measured in each interval, the given statistical law being parameterized based on the number of estimated counts.

Abstract: 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).