Class / Patent application number | Description | Number of patent applications / Date published |
073152290 | Rate of fluid flow | 73 |
20080257032 | 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. | 10-23-2008 |
20090007650 | Method and Apparatus for Wellsite Verification of Properties of a Fluid - A method for wellsite verification of properties of a fluid may include providing a fluid delivery system at the wellsite; providing at least one reference meter at the wellsite; and measuring the property of the fluid within the fluid delivery system, using the reference meter. The measuring step may be performed prior to or during dispatch of the fluid into a well bore. The reference meter may be a high precision meter. An apparatus for wellsite verification of at least one property of at least one fluid may include a fluid delivery system and at least one reference meter for measuring the property of the fluid within the fluid delivery system. The fluid delivery system and the reference meter may both be located at the wellsite. A trailer may support the fluid delivery system and the reference meter. | 01-08-2009 |
20090114008 | Method and apparatus - A method for determining the flow characteristics of a geological formation; in a particular embodiment the method comprising the steps of: providing a container such as a core barrel within the formation; adding a portion of the formation, such as a core sample, into the container; and whilst the container remains in the formation, injecting fluid into the container such that a portion of the fluid flows through said portion of the formation and measuring the flow of the injected fluid to give information on the nature, such as permeability, of the core sample. In preferred embodiments fluid is received from the portion of the formation in the container to give more information on the core sample. Certain embodiments include packers to direct the flow of the fluids within the container. Such in situ measurements provide more accurate data on the reservoir characteristics, such as reservoir permeability. | 05-07-2009 |
20090178476 | Fluid Flow Measuring Device And Method of Manufacturing Thereof - In a borehole logging tool, the flow of conductive fluid into or out of a wellbore at the wellbore wall is detected and measured with a sensor loop proximate the borehole inner wall. The sensor loop includes a series of contiguous sensors that act as electromagnetic flowmeters and provide fluid measurements covering the entire circumference of the sensor loop. The sensor loop includes an elastic element that forces the sensor loop outward to maintain pressure along the sensor loop circumference against the interior borehole wall. The sensor loop is designed to lie at a non-perpendicular angle to the wellbore axis, and mechanical arms press the top and bottom of the loop against the borehole inner wall. | 07-16-2009 |
20090193885 | FLOW METERING DEVICE - 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. | 08-06-2009 |
20090266155 | Apparatus and Method for Fluid Flow Measurement with Sensor Shielding - Methods and apparatuses for detecting radial flows of conductive fluid are provided. In an embodiment of the present invention, shields are used to prevent or reduce circulating electrical currents from causing a voltage difference that would adversely affect the measured voltage difference between two adjacent electrodes. The shields may be a conduit through which conductive fluid may flow. Groups of sensors, e.g., two or more, may be placed within the shield. The shields may have any cross-section shape. Generally, once the circulating electrical current flow between the electrode pairs is substantially reduced or eliminated, only the voltage difference from the localized induced electric field remains. This way, a true induced voltage may be measured, and thus an accurate value for the fluid velocity may be determined. | 10-29-2009 |
20090308151 | 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. | 12-17-2009 |
20090308152 | 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. | 12-17-2009 |
20100018305 | Rotating Fluid Flow Measurement Device and Method - Fluid flow measurement device and method. In one embodiment, a tool comprises a rotating arm with a sensor pad to measure fluid flow into or out of the casing wall. The arm maintains the sensor pad in close proximity to the casing inner wall. The tool diameter is variable to allow the tool to traverse variable diameter casings and pass obstacles. The sensor pad comprises flow channels to direct the flow of fluid by electromagnetic sensors configured to detect conductive fluid flow. | 01-28-2010 |
20100147066 | METHOD OF DETERMINING END MEMBER CONCENTRATIONS - A method of determining a concentration of a component in a flow from a single source or layer contributing to a total flow is described using the steps of repeatedly changing the relative flows from the source; and for each of the changed relative flows determining the combined flow rate and a total concentration of the component of the total flow until sufficient data points are collected to solving a system of mass balance equations representing the flow of the component from each source at each of the changed flow rates. | 06-17-2010 |
20110061453 | Fluid Flow Measuring Device and Method - In a borehole logging tool, the flow of conductive fluid into or out of a wellbore at the wellbore wall is detected and measured with a sensor loop proximate the borehole inner wall. The sensor loop includes a series of contiguous sensors that act as electromagnetic flowmeters and provide fluid measurements covering the entire circumference of the sensor loop. The sensor loop includes an elastic element that forces the sensor loop outward to maintain pressure along the sensor loop circumference against the interior borehole wall. The sensor loop is designed to lie at a non-perpendicular angle to the wellbore axis, and mechanical arms press the top and bottom of the loop against the borehole inner wall. | 03-17-2011 |
20110100111 | Apparatus and Method for Fluid Flow Measurement with Sensor Shielding - Methods and apparatuses for detecting radial flows of conductive fluid are provided. In an embodiment of the present invention, shields are used to prevent or reduce circulating electrical currents from causing a voltage difference that would adversely affect the measured voltage difference between two adjacent electrodes. The shields may be a conduit through which conductive fluid may flow. Groups of sensors, e.g., two or more, may be placed within the shield. The shields may have any cross-section shape. Generally, once the circulating electrical current flow between the electrode pairs is substantially reduced or eliminated, only the voltage difference from the localized induced electric field remains. This way, a true induced voltage may be measured, and thus an accurate value for the fluid velocity may be determined. | 05-05-2011 |
20110154896 | APPARATUS FOR A BOREHOLE INFLUX FLUID PARAMETERS MEASUREMENT - The apparatus for a borehole influx fluid parameters measurement comprises an enclosure open on two adjacent sides and having a poorly deformable heat-insulating rear wall, a cover and side walls made of elastically deformable heat-insulating material. Inside the enclosure a cellular structure of elastically deformable heat-insulating material is mounted with the gap relative to the enclosure's rear wall and having the through cells insulated from one another. Said cells forming the apparatus inlet openings on one side of the cellular structure and on the other side they are connected with the gap, the total area of the inlet openings significantly exceeds the area of the structure side surface they are located at. The transducers for the measurement of the influx fluid parameters are disposed inside the cells. | 06-30-2011 |
20110185805 | VARIABLE THROAT VENTURI FLOW METER - 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. | 08-04-2011 |
20110197667 | FLOW METER - A flow meter to be used in a hole drilled in the bedrock for measuring stream flows in bedrock fractures which are transversal to the hole. The flow meter comprises an elongated body having a cross section which is substantially smaller than the diameter of the hole; separating members placed at a distance from each other in the longitudinal direction of the body for separating the examined section from the other parts of the hole in a substantially pressure-tight manner; dividing members for dividing the examined section into two sectors in the longitudinal direction of the hole; and a flow channel extending through the body and equipped with a flow sensor for measuring the direction and rate of the flow between the sectors. In accordance with the invention, the dividing members are formed of thin and elastic sealing strips, which have been fixed to the body and, being substantially perpendicular to the surface of the body, arranged to surround and delimit the sectors. | 08-18-2011 |
20110214498 | FLOW RESTRICTION INSERT FOR DIFFERENTIAL PRESSURE MEASUREMENT - 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. The differential pressure measurement device has at least one pressure sensor for detecting the pressure at the first pressure station, and for detecting the pressure at the second pressure station to generate a signal indicative of the flow rate of the fluid. | 09-08-2011 |
20110252878 | PRODUCTION LOGGING PROCESSES AND SYSTEMS - Processes and systems for logging production of fluid produced into a well bore without intervention of the well are disclosed. Two or more markers may be introduced into produced fluid at spaced apart locations along a well. The time for each marker to reach a common point may be measured and production rates for produced fluids at each spaced apart location may be calculated. | 10-20-2011 |
20120011928 | FLUID FLOW SENSOR - A bi-directional fluid flow sensor is disclosed. The sensor comprises a turbine configured to rotate along an axis as a result of fluid flowing past the turbine substantially in the direction of the axis; a magnet mounted to the turbine and configured to rotate with the turbine; and a magnetic flux angle sensor provided adjacent to the turbine and configured to detect the relative flux angle of the magnet as it rotates. The bi-directional fluid flow sensor is sensitive and robust and may be used in a downhole well for example. | 01-19-2012 |
20120103082 | DOWNHOLE FLOW METER - A technique facilitates flow monitoring in a well. A well component is designed for engagement with a well string deployed downhole into a wellbore. The well component has an internal flow passage through which well fluid is flowed. A sensor structure is mounted in the well component along the internal flow passage and comprises at least one sensor designed to sense a parameter related to fluid flow. The sensor structure is movable between a non-intrusive flow position with respect to the internal flow passage and a measurement position within the internal flow passage for measurement of the desired parameter. | 05-03-2012 |
20120198927 | Rotating Fluid Measurement Device and Method - Fluid flow measurement device and method. In one embodiment, a tool comprises a rotating arm with a sensor pad to measure fluid flow into or out of the casing wall. The arm maintains the sensor pad in close proximity to the casing inner wall. The tool diameter is variable to allow the tool to traverse variable diameter casings and pass obstacles. The sensor pad comprises flow channels to direct the flow of fluid by electromagnetic sensors configured to detect conductive fluid flow. | 08-09-2012 |
20120285233 | Fluid Flow Measuring Device and Method - In a borehole logging tool, the flow of conductive fluid into or out of a wellbore at the wellbore wall is detected and measured with a sensor loop proximate the borehole inner wall. The sensor loop includes a series of contiguous sensors that act as electromagnetic flowmeters and provide fluid measurements covering the entire circumference of the sensor loop. The sensor loop includes an elastic element that forces the sensor loop outward to maintain pressure along the sensor loop circumference against the interior borehole wall. The sensor loop is designed to lie at a non-perpendicular angle to the wellbore axis, and mechanical arms press the top and bottom of the loop against the borehole inner wall. | 11-15-2012 |
20130068007 | Compact Surface Well Testing System and Method - A well testing system and method are provided. The well testing system includes a separator-exchanger module that may include a modular frame, a separator and/or a modular steam-heat exchanger. A surge tank module can include a surge tank, frames, and two surge tanks. A manifold model can include a compact manifold. The various modules of the well testing system can be interconnected using various guiding, stopping, and/or fixing clamps. | 03-21-2013 |
20130081459 | PRODUCTION LOGGING IN HORIZONTAL WELLS - An apparatus for production logging includes a conveyance device configured to traverse a wellbore, a multicapacitance flow meter positioned on the conveyance device and configured to estimate at least one parameter relating to holdup; and a spinner flow meter positioned on the conveyance device and configured to estimate at least one parameter relating to a flow velocity of at least one fluid phase. | 04-04-2013 |
20130081460 | Electrical Submersible Pump Flow Meter - An apparatus for metering fluid in a subterranean well includes an electric submersible pump having a motor, a seal section and a pump assembly and a metering assembly. The metering assembly includes an upper pipe section with an outer diameter, the upper pipe section having an upper pressure sensing means, and a lower pipe section with an outer diameter smaller than the outer diameter of the upper pipe section, the lower pipe section having a lower pressure sensing means. A power cable is in electronic communication with the electric submersible pump and with the metering assembly. | 04-04-2013 |
20130220008 | METHOD FOR TRANSIENT TESTING OF OIL WELLS COMPLETED WITH INFLOW CONTROL DEVICES - Disclosed is a method for transient testing of an oil well to determine the individual, distinct skin factor components of an apparent skin factor, which includes opening the well to a first predefined choke setting to allow the reservoir fluid to flow through the well for a first predefined period of time, and measuring a production rate of the reservoir fluid through the well, when the first predefined period of time expires. The method further includes performing a shut-in of the well for a first predefined build-up period, and repeating, when the first predefined build-up period expires, the steps of the flowing, the measuring, and the performing for at least two additional choke settings. The distinct skin factor components of the apparent skin factor are determined using a graphical relationship between the determined apparent skin factors and the measured production rates. | 08-29-2013 |
20130319103 | Dual Differential Pressure Multiphase Flow Meter - A flow meter and method of determining a parameter of a downhole multiphase fluid is disclosed. Multiphase fluid flows through a downhole tubular member having first section, second section and third section, wherein the second section is disposed between the first section and the third section and an inner diameter of the second section is greater than an inner diameter of the first section and an inner diameter of the third section. Absolute pressure measurements of the multiphase fluid are obtained at each of the first section, second section and third section using absolute pressure gauges. The parameter of the downhole multiphase fluid is determined from the absolute pressure measurements. | 12-05-2013 |
20140137642 | NET OIL AND GAS WELL TEST SYSTEM - A net oil and gas well test system for a set of oil and gas wells includes at least two net oil and gas measurement systems and a plurality of valves that are in fluid communication with the individual wells in the set and independently configurable between a first state, in which the valve routes flow to a first net oil and gas measurement system, and a second state, in which the valve routes flow to a second net oil and gas measurement system. Each net oil and gas measurement system suitably has the capability to measure a multiphase flow including oil, gas, and water without separation. For example, each measurement system can include a multiphase Coriolis meter and a water cut meter. Each measurement system suitably includes the capability to provide dynamic uncertainty estimates related to measurement of the multiphase flow. | 05-22-2014 |
20140144225 | MULTIPHASE FLOWMETER - A multiphase flow meter comprising two Venturis separated by a choke. The choke may be varied to adjust the properties of the multiphase fluid flow being measured. The two Venturis may be identical and may be arranged horizontally with respect to the multiphase fluid flow. The choke may be a choke in a return line of a managed pressure drilling system. | 05-29-2014 |
20140260587 | Devices and Methods for Electromagnetic Measurement of Axial Flow - An embodiment method for measuring fluid flow in a casing includes inserting a logging tool into the casing, wherein the logging tool having an internal axial flow channel and an electromagnetic flowmeter sensor disposed in the internal flow channel. The method also includes measuring an axial conductive fluid flow through the flow channel with the electromagnetic flowmeter sensor, while allowing bypass axial fluid flow to bypass the internal flow channel substantially unimpeded between an exterior of the logging tool and an interior wall of the casing. | 09-18-2014 |
20150075273 | ALTERNATIVE GAUGING SYSTEM FOR PRODUCTION WELL TESTING AND RELATED METHODS - A method for measuring a well fluid parameter includes diverting a fluid through a first loop comprising one or more fluid parameter measurement components, determining a gross flow rate of the fluid, recirculating the fluid through a second loop upon determining the gross flow rate is below a threshold amount, and measuring the fluid parameter upon the gross flow rate reaching or exceeding the threshold amount. | 03-19-2015 |
20150315896 | Scale Indication Device and Method - A scale indicator is for a flowline for a fluid. At least one partial fluid line which is arranged to carry a partial fluid flow is provided with an inlet port arranged upstream in a main fluid flow and an outlet port arranged downstream in the main fluid flow. The at least one partial fluid line contains a tracer depot which is in fluid communication with the partial fluid flow. A method is for monitoring a scaling state in a flowline. | 11-05-2015 |
20150330173 | METHOD FOR MONITORING A SEALING ELEMENT - Embodiments of a method for monitoring an annular packer are provided herein. In some embodiments, a method for monitoring a sealing element of a blowout preventer may include providing a fluid to a chamber disposed within a blowout preventer to actuate a piston disposed within the chamber, wherein the actuation of the piston causes a reduction of an inner diameter of a sealing element; measuring one or more parameters of the fluid via a sensor; receiving data relating to the one or more parameters from the sensor; determining a stiffness of the sealing element utilizing the data relating to the one or more parameters; and determining an amount of degradation of the sealing element by comparing the determined stiffness of the sealing element to a known data profile. | 11-19-2015 |
20150369039 | BRIDGE-TYPE CONCENTRIC DIRECT READING TESTING AND COMMISSIONING INSTRUMENT - A bridge concentric direct-reading testing and adjusting instrument, comprising: a cable head having a lower end connected to a pressure sensor via a circuit board; a supporting mechanism having a supporting arm fixing base and a pair of supporting arms connected to the supporting arm fixing base; an inclination well sliding power mechanism including a power motor, a spring, an impact hammer and a one-way clutch assembly, the spring positioned between the power motor and the impact hammer, the impact hammer slidably connected to the power motor and to be rotated along with rotation of the power motor, a lower end of the impact hammer detachably connected to the one-way clutch assembly, and the one-way clutch assembly connecting the supporting arms via a transmission assembly to control opening and closing of the supporting arms; a flowmeter connected below the supporting mechanism; and an adjusting actuator connected below the flowmeter and including an adjusting motor, an adjusting connector and an adjusting arm, the adjusting motor connected to the adjusting arm via the adjusting connector, and the adjusting arm used for adjusting a waterflooding flow rate through rotation of the adjusting arm | 12-24-2015 |
20160010454 | Tracer Based Flow Measurement | 01-14-2016 |
20160076926 | Method and Apparatus for Monitoring the Flow of Mixtures of Fluid in a Pipe - A monitoring apparatus for monitoring a multiphase flow in a pipe, the apparatus comprising: a first monitoring module coupled to the pipe and adapted to provide first output data representing a respective concentration of one phase of a plurality of phases, or a mixture of at least two of the phases, in the multiphase flow by processing at least one first variable representing electrical permittivity of one phase or a mixture of at least two of the phases of the multiphase flow; a second monitoring module coupled to the pipe and adapted to provide second output data representing a respective concentration of one phase, or a mixture of at least two of the phases, of the plurality of phases in the multiphase flow by processing at least one second variable representing electrical conductivity of one phase or a mixture of at least two of the phases of the multiphase flow; and a third monitoring module coupled to the pipe and adapted to provide third output data representing a respective velocity of at least one phase of the plurality of phases in the multiphase flow by processing at least one third variable representing velocity of at least one of the phases. There is a further provided a monitoring method for monitoring a multiphase flow in a pipe. There is a further provided an oil well system including a plurality of oil wells, and one or more monitoring apparatus for monitoring a multiphase flow in a pipe. There is a further provided a method of operating an oil well system using a multiphase fluid flow model which is calibrated or modified based on measured parameters of the multiphase flow. | 03-17-2016 |
20160160634 | SYSTEM FOR NON-INVASIVE CONTROLLING OF UNDERGROUND STORAGES AND METHOD FOR DETECTING LEAKAGES IN UNDERGROUND STORAGES - A device and a method is disclosed for detecting an undesired escape of fluids, in that electric potentials are measured using a grid of non-polarizable measuring electrodes above an underground storage facility. Potential differences are determined in such a way that disturbances due to injection borehole or due to the exchange of fluids in the underground storage facility are eliminated. This is done either through the use of the symmetry of the potential distribution around the injection borehole in that the potential differences of pairs of measuring electrodes are observed whose mid-points coincide with the injection borehole or else through the computational simulation of the potentials that arise due to the fluid movement in the underground storage facility without a leak. These are then subtracted from the measured potentials. If the ascertained potential differences exceed a limit value, this is considered as an indication of a leak. | 06-09-2016 |
20160160640 | SYSTEM FOR TRACKING AND SAMPLING WELLBORE CUTTINGS USING RFID TAGS - A system and process for determining system operational characteristics of a drill string or completed well includes one or more detectors positioned along a fluid flow path in a wellbore. The detectors are operable to detect the presence of one or more transmitters circulated within the fluid flow path and to receive and record data based on detecting the transmitters. The system determines an operational characteristic, such as cutting sample identification information, flow rate, pump efficiency, lag, the presence of a washout, losses, or an equipment malfunction based on the data received and recorded by the detectors. | 06-09-2016 |
20160169726 | Method of Compensating for Changes in Water Properties in A Multiphase Flow Meter | 06-16-2016 |
20160201453 | METHOD FOR CONTROLLING FLUID INTERFACE LEVEL IN GRAVITY DRAINAGE OIL RECOVERY PROCESSES WITH CROSSFLOW | 07-14-2016 |
073152310 | Plural diverse measuring | 8 |
20110219866 | Apparatus to Monitor Flow Assurance Properties in Conduits - A combination of sensors are strategically placed along a pipeline to measure critical properties such as temperature and pressure of the flow product. The sensors are a combination of fiber optic sensing devices that are specifically designed to measure a range of properties within particular bandwidth, with a method to reduce light attenuation over the long pipeline distances. The pipeline is typically subsea and can range widely in diameter. In many cases the pipeline has a coating that acts as a barrier to the corrosive sea water and additional thermal barriers. | 09-15-2011 |
20120297868 | PORTABLE GAS MONITOR - A portable monitor used to measure landfill gas and landfill well parameters. The portable monitor includes a control unit and a measuring unit that can communicate wirelessly with one another. The control unit and/or measuring unit can include a heating arrangement to increase the temperature of one or more components in the control unit and/or measuring unit in cold environments. | 11-29-2012 |
20140137643 | MULTIPHASE FLOW METERING SYSTEM - A multi-phase flow metering system for measuring a multi-phase fluid including oil, water, and gas, includes a Coriolis mass flow meter adapted to measure mass flow rate and density of the multi-phase fluid. The system has a water cut meter adapted to measure the water cut of the multi-phase fluid. A processor is configured to determine the oil mass flow rate of the oil, water mass flow rate of the water, and gas mass flow rate of the gas using the mass flow rate and density from the Coriolis meter and the water cut from the water cut meter. The processor is further configured to determine dynamic estimates of the uncertainty of each of the oil mass flow rate, water mass flow rate, and gas mass flow rate. | 05-22-2014 |
20140144226 | Distributed Fluid Velocity Sensor and Associated Method - Device and method for performing distributed fluid velocity measurement. An elongate device comprising along its length, a heated core ( | 05-29-2014 |
20140150546 | Methods and Apparatus for Analyzing Operations - Example methods and apparatus for analyzing operations are disclosed herein. An example method includes disposing a sensor in a fluid flow passageway. The sensor has a heater and a temperature sensor. The example method further includes obtaining a first response of the sensor to a fluid flowing in the fluid flow passageway and transmitting a signal to a tool to operate the tool. Operation of the tool is to affect a fluid parameter of the fluid. The example method also includes obtaining a second response of the sensor to the fluid flowing in the fluid flow passageway and determining if the tool has operated based on the first response and the second response. | 06-05-2014 |
20140318234 | WELL TESTING - A method of well testing to determine properties of oil and gas wells | 10-30-2014 |
20140338439 | METHOD AND APPARATUS FOR DETERMINING FLUID FLOW CHARACTERISTICS - A measurement device is configured in a shaped charge package to be utilized in a perforating gun section tool string. The measurement device may include for example thermal conductivity detectors (TCD) configured to measure fluid flow velocity and/or thermal characteristics of the flowing fluid. The measurement device may include for example a pair laterally spaced TCDs each having sensor faces positioned co-planar with a surface across which the fluid flows. The measurement device may include a recessed TCD, having a sensor face recessed below an opening in the exterior surface. | 11-20-2014 |
20150330213 | SYSTEMS AND METHODS FOR DETERMINING A RHEOLOGICAL PARAMETER - The present disclosure relates to systems and methods for determining a rheological parameter of a fluid within a wellbore. | 11-19-2015 |
073152320 | Vibration | 13 |
20090165547 | Apparatus and Method for Detecting Fluid Entering a Wellbore - The method and apparatus of the present invention provides for detecting a flow of a formation fluid entering into a wellbore. An ultrasonic sensor is placed in a wellbore. The sensor has a resonant member that is exposed to a fluid in the wellbore. At a location in the wellbore, acoustic energy is measured wherein the acoustic energy is related to turbulence from formation fluid entering the wellbore. In another embodiment of the invention a tool is provided for detecting a flow of a formation fluid into a downhole location in a wellbore. The ultrasonic sensor has a resonant member that is adapted to be in contact with a fluid in the wellbore. The sensor generates electrical signals when exposed to ultrasonic turbulences caused by a formation fluid entering into the wellbore. A processor processes the electrical signals to detect the flow of the formation fluid entering into the wellbore. | 07-02-2009 |
20110030467 | REAL-TIME COMPLETION MONITORING WITH ACOUSTIC WAVES - A method for monitoring fluid flow through a downhole device, comprises a) providing an acoustic tube wave in fluid in the device; b) measuring the acoustic tube wave after it has passed through the fluid in the device; and c) assessing the permeability of the device by measuring the attenuation of the acoustic signal. Changes in velocity of the acoustic signal may also be measured. The device may be a permeable downhole device such as a sand screen the measurements in step b) are made using a plurality of sensors deployed in the hole. The method may further including the step of cross-correlating a signal received at a first receiver with signals received at additional sensors so as to obtain an effective response as if the signal had been emitted from a source at the position of said first receiver. | 02-10-2011 |
20110100112 | PIEZO-BASED DOWNHOLE FLOW METER - A flow meter is provided for disposing downhole in a well. The flow meter includes a resonator beam that is integrated with piezo-material to generate a voltage in response to the downhole flow. A resonator head may be incorporated with the resonator beam so as to enhance the generated voltage where appropriate. Configurations of flow meters employing such piezo-material may substantially avoid the use of moving parts susceptible to corrosion and other downhole conditions. These configurations may be particularly useful for long term downhole use such as for production monitoring. | 05-05-2011 |
20120255351 | SERIES CONFIGURED VARIABLE FLOW RESTRICTORS FOR USE IN A SUBTERRANEAN WELL - A variable flow resistance system can include a vortex device, with resistance to flow of a fluid composition through the vortex device being dependent on a rotation of the fluid composition at an inlet to the vortex device. Another system can include a second vortex device which receives a fluid composition from an outlet of a first vortex device, a resistance to flow of the fluid composition through the second vortex device being dependent on a rotation of the fluid composition at the outlet. Another system can include a first vortex device which causes increased rotation of a fluid composition at an outlet thereof in response to an increase the fluid composition velocity, and a second vortex device which receives the fluid composition from the outlet, a flow resistance through the second vortex device being dependent on the rotation of the fluid composition at the outlet. | 10-11-2012 |
20120291539 | Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods - A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths. A hardened insert in the outlet of the vortex chamber resists erosion. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill sting and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit. | 11-22-2012 |
20140202240 | FLOW VELOCITY AND ACOUSTIC VELOCITY MEASUREMENT WITH DISTRIBUTED ACOUSTIC SENSING - A well flow velocity measurement method can include transmitting an acoustic signal through at least one fluid composition in a well, detecting velocities of the acoustic signal in both opposite directions along an optical waveguide in the well, the optical waveguide being included in a distributed acoustic sensing system, and determining an acoustic velocity in the fluid composition based on the velocities of the acoustic signal. Another well flow velocity measurement method can include propagating at least one pressure pulse through at least one fluid composition in a well, detecting a velocity of the pressure pulse along an optical waveguide in the well, the optical waveguide being included in a distributed acoustic sensing system, and determining an acoustic velocity in the fluid composition based on the velocity of the pressure pulse. | 07-24-2014 |
20140216151 | Flow Monitoring - This application describes methods and apparatus for monitoring flow of fluids within conduits using fibre optic Distributed Acoustic Sensing (DAS). The method can determine flow rate and/or flow regime within a conduit such as within a production well or a pipeline. Embodiments involve introducing an acoustic stimulus ( | 08-07-2014 |
20140260588 | Flow Sensing Fiber Optic Cable and System - A system and method for monitoring oil flow rates at multiple points in production wells using a flow sensing fiber optic cable. An illustrative system embodiment includes: a fiber optic sensing system housed within a tube suitable for a downhole environment; and a flow to signal conversion device attached to the tube and deployed in the oil flow. | 09-18-2014 |
20140260589 | DOWNHOLE TOOL FOR DETERMINING FLOW VELOCITY - The present invention relates to a downhole tool for determining flow velocity of fluid in an inside of a borehole or borehole casing. The downhole tool comprises a tool housing extending along a longitudinal axis and having a circumference which is perpendicular to the longitudinal axis, said tool housing being adapted to be lowered into the inside of the borehole or borehole casing, a longitudinal transducer transmitting a probing signal substantially longitudinally from an end part of the tool housing into a fluid flowing in said borehole or borehole casing so that the transmitted probing signal is exposed to reflective entrained surfaces in the flowing fluid, and the longitudinal transducer receiving a reflected signal reflected substantially from reflective entrained surfaces in the fluid flowing in said well along a longitudinal direction towards the end part of the tool housing, and whereby a flow velocity of the fluid may be extracted from consecutive received signals (RS), a plurality of electrodes arranged spaced apart around the longitudinal axis in the periphery of the tool so that the fluid flows between the electrodes and a borehole wall or borehole casing wall, and a measuring means for measuring the capacitance between two electrodes in all combinations giving n*(n−1)/2 capacitance measurements for n electrodes, wherein the downhole tool has a space between every two electrodes, which space is substantially filled up with a non-conductive means in order to determine properties of the fluid, of which the flow velocity is extracted. | 09-18-2014 |
20150013446 | Monitoring Flow Conditions Downwell - This application describes methods and apparatus for monitoring flow at a given location downwell. The method of comprises performing fibre optic sensing on an optical fibre | 01-15-2015 |
20160041286 | METHODS FOR MEASURING PROPERTIES OF MULTIPHASE OIL-WATER-GAS MIXTURES - Methods for real-time, continuous measurements of the composition and other properties of individual phases of petroleum, water and gas mixtures during the oil production process, without requiring test separators, test lines, with associated valving and instrumentation, are described. Embodiments of the present invention direct ultrasonic sound transmission through a flowing multiphase fluid in three frequency ranges: low frequencies, gas bubble resonance frequencies, and high frequencies, wherein certain sound propagation measurements, including sound speed, sound attenuation and sound scattering, are made in one or more of the three separate frequency regions, from which the multiphase composition and other properties are extracted without having to separate the multiphase fluid or the gas from the flowing stream. | 02-11-2016 |
20160177708 | ACOUSTIC MEASUREMENT OF WELLBORE CONDITIONS | 06-23-2016 |
20160187172 | ULTRASONIC VISCOMETER - An ultrasonic flowmeter for detecting fluid flow rates using transit time measurement, including an upstream transducer positioned so plane waves generated by the upstream transducer propagates through the flowmeter and a downstream transducer positioned so plane waves generated by the downstream transducer propagates through the flowmeter to generate an upstream transducer signal and a downstream transducer signal. The flowmeter further includes sensors which measure either upstream and downstream temperature and/or pressure, thus, providing measurements of fluid density. The flowmeter as described provides a simple and cost effective way to calculate fluid viscosity using Poiseuille's equation in real time. | 06-30-2016 |
073152330 | Thermal | 6 |
20110252879 | APPARATUS FOR DETERMINING DOWNHOLE FLUID TEMPERATURES - Apparatus for determining downhole fluid temperatures are described. An example apparatus for measuring a temperature of a downhole fluid includes a sensing element for measuring a physical or chemical property of the downhole fluid, and a plurality of electrical connections to enable the sensing element to measure the chemical or physical property and provide an output signal representative of the chemical or physical property, wherein at least one of the electrical connections is configured to function as a thermocouple to sense a temperature of the downhole fluid. | 10-20-2011 |
20120285234 | THERMOGRAPHY LOGGING TOOL - The invention relates to a logging tool for determining the properties of a fluid surrounding the tool arranged downhole in a casing comprising a wall and having a longitudinal extension. The logging tool has a substantially longitudinal cylindrical shape with a longitudinal axis, and the logging tool comprises a sensor unit comprising an anemometer having a resistance probe electrically connected with three other resistors, a voltmeter and an amplifier for forming a bridge circuit, such as a Wheatstone bridge, having bridge current and bridge voltage. The invention further relates to a method for determining the properties of a fluid by means of the logging tool. | 11-15-2012 |
20140157884 | Methods and Apparatus for Determining Downhole Parameters - Apparatus and methods for determining downhole fluid parameters are disclosed herein. An example method includes disposing a downhole tool in a well. The downhole tool has a sensor including a heater and a temperature sensor. The example method further includes flowing a fluid in the well. The example method also includes determining a first velocity of the fluid at a first depth via the sensor and, based on the first velocity of the fluid, a first parameter of the well at the first depth is determined. | 06-12-2014 |
20140326063 | VIRTUAL FLOWMETER FOR A WELL - A technique includes inducing a distributed temperature change along a portion of a wellbore and measuring a time varying temperature along the portion of the wellbore due to the induced change. The technique includes determining a distributed flow rate in the portion based at least in part on the measured time varying temperature before the temperature reaches equilibrium. | 11-06-2014 |
20150135817 | Methods and Apparatus for Determining Downhole Fluid Parameters - Example methods and apparatus to determine downhole fluid parameters are disclosed herein. An example method includes determining a velocity of a portion of a downhole tool moving in a well and determining a response of a fluid sensor disposed on the portion of the downhole tool. The fluid sensor includes a resistance temperature detector at least partially immersed in a fluid in the well. The example method further includes determining a velocity of the fluid based the velocity of the portion of the downhole tool and the response of the fluid sensor. | 05-21-2015 |
20160097273 | MULTI-PHASE FLUID FLOW PROFILE MEASUREMENT - Described herein are devices, systems, and methods for analyzing multi-phase fluid flow profile and flow field distribution by utilizing heating wires and thermal sensing arrays to detect transient thermal response and generate a dynamic temperature profile. The thermal sensing arrays include a plurality of thermal sensors disposed linearly along the length of the array. The multi-point dynamic temperature profile is used to determine fluid rate, velocity, flow patterns, and flow field distribution. | 04-07-2016 |
073152340 | Rotary | 5 |
20110162446 | Linearized torque flow sensor - A fluid flow meter is responsive to measured torque force imposed by fluid flow over a static impeller. Exponential torque relationships imposed upon a static torque shaft by fluid flow over a static impeller are linearized by a resilient torque shaft restraint and translated to flow rate values by torque measuring means. | 07-07-2011 |
20130298663 | FLOW MEASUREMENT | 11-14-2013 |
20160047229 | Wellbore Flowmeter - A flowmeter for use in a wellbore that has vane assemblies that deploy from a rotating segment. The vane assemblies project a variable distance away from the rotating segment, so that the flowmeter adjust to varying flow conditions. The variable distance of the vane assemblies also allows use of the flowmeter in different sized wellbores. An example flowmeter includes vane assemblies of varying length that are selectively deployed depending on operating conditions. Other vane assemblies have vane elements with a pitch that varies in response to wellbore and fluid flow operating parameters. | 02-18-2016 |
073152350 | Magnetic | 2 |
20100154530 | ROTATING FLOW METER - A flow meter for measuring the velocity of surrounding fluid, comprising a rotatable member rotatably coupled to a shaft member, wherein the shaft member comprises a measuring electrical circuit comprising an AC power supply and a primary coil, the rotatable member comprising a passive non-permanent magnet marker responsive to a magnetic field, the arrangement being such that when the circuit is powered by the AC supply the coil generates a magnetic field and the marker is positioned on the rotatable member such that rotation of the rotatable member in response to fluid drag on the member causes the distance between the marker and the coil to oscillate, the marker interacting with the magnetic field at its closest approach to the coil, thereby to cause a measurable electrical response in the circuit. Thus, the speed of rotation of the rotatable member can be determined by measuring an electrical response in the circuit without physically contacting the rotatable member and without involving a permanent magnet is provided. | 06-24-2010 |
20140047915 | Rotating Fluid Measurement Device and Method - Fluid flow measurement device and method. In one embodiment, a tool comprises a rotating arm with a sensor pad to measure fluid flow into or out of the casing wall. The arm maintains the sensor pad in close proximity to the casing inner wall. The tool diameter is variable to allow the tool to traverse variable diameter casings and pass obstacles. The sensor pad comprises flow channels to direct the flow of fluid by electromagnetic sensors configured to detect conductive fluid flow. | 02-20-2014 |
073152360 | Packer or deflector detail | 2 |
20130255370 | Variable Throat Venturi Flow Meter - 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. | 10-03-2013 |
20140245827 | In-situ Detection and Analysis of Methane in Coal Bed Methane Formations with Spectrometers - The invention subject of this disclosure teaches a method of determining a production factor for a carbonaceous material reservoir, the method comprising: providing a well in a carbonaceous material reservoir; providing unsampled fluid at a depth in the well; placing a sensor adjacent to the unsampled fluid and performing a measurement on the unsampled fluid; using data from the measurement to determine a partial pressure of a solution gas in the carbonaceous material reservoir; and determining a production factor for the carbonaceous material reservoir from the partial pressure of the solution gas. | 09-04-2014 |