Rate Of Fluid Flow Patents (Class 73/152.29)
  • Publication number: 20110139442
    Abstract: A method of determining a concentration of a component in a flow from a single source or layer contributing to a total flow using the steps of measuring the total flow rate at various depths and sampling the total flow at a depth between two successive sources, measuring a total concentration of one or more flow components within the total flow, repeating the measuring of the total flow rate, the sampling and total concentration in further intervals separating other pairs of successive sources, and determining the concentration of at least one component by solving a system of mass balance equations representing the total flow of the flow components at each sampling depth.
    Type: Application
    Filed: December 10, 2009
    Publication date: June 16, 2011
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Murtaza Ziauddin, Ozgur Karacali
  • Publication number: 20110100111
    Abstract: 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.
    Type: Application
    Filed: January 10, 2011
    Publication date: May 5, 2011
    Inventor: Robert E. Maute
  • Publication number: 20110094741
    Abstract: The invention provides apparatus for use in a wellbore (32) made of a casing (30) and an annular (33) with a fluid within, comprising: a reel (40) of wound optic fiber line (10) fixed to an object (20) within the casing, and a light transmitter/receiver device (12) able to generate a signal through the optic fiber line and to measure a change of said signal; wherein the optic fiber line is: (a) on a first position fixed to a reference point (4) linked to the light transmitter/receiver device, and is (b) on a second position unwound from the reel; wherein the light transmitter/receiver device is able to measure the change of said signal when occurring at the second position; and the apparatus having a system able to measure the flow rate of the fluid exiting the annular at the surface level Q.
    Type: Application
    Filed: April 2, 2009
    Publication date: April 28, 2011
    Applicant: PRAD RESEARCH AND DEVELOPMENT LIMITED.
    Inventors: Pierre Vigneaux, Dominique Guillot
  • Publication number: 20110061453
    Abstract: 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.
    Type: Application
    Filed: November 16, 2010
    Publication date: March 17, 2011
    Inventor: Robert E. Maute
  • Patent number: 7891422
    Abstract: A sensor system includes a carrier configured for a specific application; an electronics module mountable in a number of individual carriers; a feedthrough mountable in a number of individual carriers and in operable communication with the interface; a sensor mounting mountable in a number of individual carriers and in operable communication with the feedthrough; and a sensor array articulated to the sensor mounting.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: February 22, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: Iain M. Maclean
  • Publication number: 20110023595
    Abstract: A compact fluid disposal and surface well testing system and method, including a multiphase meter for flow-metering and sampling of a received oil/gas/water stream and generating flow information for the received oil/gas/water stream; a compact gas/liquid splitter coupled to the multiphase meter and configured for generating a gas rich stream, and a liquid rich stream from the oil/gas/water stream based on the flow information from the multiphase meter; and a free water knock out (FWKO)/holding tank coupled to the compact gas/liquid splitter for receiving the liquid rich stream from the compact gas/liquid splitter and degassing the liquid rich stream and performing oil/water separation on the liquid rich stream.
    Type: Application
    Filed: December 24, 2008
    Publication date: February 3, 2011
    Inventor: Francis Allouche
  • Patent number: 7866207
    Abstract: 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.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: January 11, 2011
    Assignee: REM Scientific Enterprises, Inc.
    Inventor: Robert E. Maute
  • Patent number: 7836759
    Abstract: 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.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: November 23, 2010
    Assignee: REM Scientific Enterprises, Inc.
    Inventor: Robert E. Maute
  • Patent number: 7784339
    Abstract: The present invention provides an apparatus an methods for detecting the behavior of perforations in a wellbore casing, the apparatus including a sensor array movable within the internal diameter of the casing, the sensor array having one or more sensors located proximate the internal surface of the casing with the sensors being located or oriented such that properties of flow from a proximate perforation can be distinguished from properties of a main flow through the wellbore.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: August 31, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: John Mervyn Cook, Ashley Bernard Johnson
  • Patent number: 7778780
    Abstract: One aspect of the invention relates to a method (10) for characterizing a well (700) using distributed temperature sensor (DTS) data to optimise a well model (12). The method comprises providing a well model of flow and thermal properties (12a, 12b) of the well (700), where the well model (12) has a plurality of adjustable physical parameters, providing a data set made up of a plurality of DTS temperature profiles of the well (700) taken at different times during operation of the well (700), and running the well model (12) with different combinations of the plurality of adjustable physical parameters to match to the plurality of DTS temperature profiles. The DTS temperature profiles may also be pre-processed to make them consistent with one another.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: August 17, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Stephen J. Kimminau, Mohammed Rupawalla, Kashif Rashid, David Michael Hargreaves, Cyril Lagrange
  • Publication number: 20100200242
    Abstract: Embodiments of the present invention generally relate to methods and apparatus for centrifugal separation. In one embodiment, a separator includes an outer tubular having ends sealed from the environment and an inner tubular. The inner tubular is disposed within the outer tubular, has ends in fluid communication with a bore of the outer tubular, and is attached to the outer tubular. The separator further includes an inlet. The inlet is disposed through a wall of the outer tubular, in fluid communication with a bore of the inner tubular, and tangentially attached to the inner tubular so that fluid flow from the inlet to the inner tubular is centrifugally accelerated. The separator further includes a gas outlet in fluid communication with the outer tubular bore; and a liquid outlet in fluid communication with the outer tubular bore.
    Type: Application
    Filed: February 11, 2009
    Publication date: August 12, 2010
    Inventors: George Joel Rodger, Denman L. Cloudt, JR.
  • Publication number: 20100147066
    Abstract: 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.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 17, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY COPORATION
    Inventor: Murtaza Ziauddin
  • Patent number: 7658226
    Abstract: Although the methods have been described here for, and are most typically used for, hydrocarbon production, fluid diversion measurement systems and methods are described. One method includes inserting a tubular tubing having one more fluid injection ports into a wellbore, injecting a treatment fluid through the injection port, and determining differential flow of the treatment fluid at one or more wellbore based on measuring the concentration of at least one particular component of a wellbore fluid located in the annulus formed between the wellbore and tubular; and using the measured parameters in realtime to monitor, control, or both monitor and control diversion of the fluid.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: February 9, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Murtaza Ziauddin, Bhavani Raghuraman, Li Jiang, Xuefei Sun, Sebastien Fremont, Ballard Andrews, Robert Schroeder, Stephen Hill, Mahmuda Afroz, Frank Espinosa, Michael Orlet, John Lovell, Steve Davies
  • Publication number: 20100018305
    Abstract: 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.
    Type: Application
    Filed: November 9, 2007
    Publication date: January 28, 2010
    Inventors: Robert E. Maute, Feroze Sidhwa
  • Publication number: 20090308151
    Abstract: 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.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 17, 2009
    Inventors: David Zollo, Andrew Beck, Sean Walters
  • Publication number: 20090308152
    Abstract: 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.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 17, 2009
    Inventors: David Zollo, Andrew Beck, Sean Walters
  • Publication number: 20090266155
    Abstract: 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.
    Type: Application
    Filed: July 6, 2009
    Publication date: October 29, 2009
    Inventor: Robert E. Maute
  • Patent number: 7600419
    Abstract: A production logging tool for measuring at least one property of a surrounding fluid in a wellbore, comprising a shaft and a rotatable member coupled to the shaft, the rotatable member comprising a sensor component, the arrangement being such that on rotation of the member the sensor moves in a path transverse to the length of the shaft.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: October 13, 2009
    Assignee: Schlumberger Technology Corporation
    Inventor: Gary Martin Oddie
  • Patent number: 7596996
    Abstract: 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.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: October 6, 2009
    Assignee: FMC Technologies, Inc.
    Inventors: David Zollo, Andrew Beck, Sean Walters
  • Publication number: 20090235730
    Abstract: A method and apparatus for removing deposits formed within a capillary tube that has been used to deliver treatment chemicals into a well. The method includes pumping a cleaning solution through the capillary tube coil, preferably after the capillary tube has been removed from the well and formed as a coil. The cleaning solution comprises at least 20 weight percent of a surfactant or dispersant, at least 5 weight percent of a coupling agent, and at least 10 weight percent solvent. A preferred surfactant or dispersant is selected from the group consisting of an alkyl-aryl sulphonate and a phosphate ester. An example of a cleaning solution includes dodecylbenzeneylsulphonic (DDBSA) acid, ethylene glycol monobutyl ether and toluene.
    Type: Application
    Filed: March 19, 2009
    Publication date: September 24, 2009
    Applicant: CHAMPION TECHNOLOGIES, INC.
    Inventor: Rama R. Alapati
  • Patent number: 7574907
    Abstract: 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.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 18, 2009
    Assignee: REM Scientific Enterprises, Inc.
    Inventor: Robert E. Maute
  • Publication number: 20090193885
    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.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 6, 2009
    Inventors: CĂ©line Gabard-Cuoq, Jean-Michel Hache, Gilles Roux
  • Publication number: 20090178476
    Abstract: 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.
    Type: Application
    Filed: March 26, 2009
    Publication date: July 16, 2009
    Inventor: Robert E. Maute
  • Publication number: 20090114008
    Abstract: 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.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 7, 2009
    Inventor: Philippe Cravatte
  • Patent number: 7509852
    Abstract: 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.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: March 31, 2009
    Assignee: REM Scientific Enterprises, Inc.
    Inventor: Robert E. Maute
  • Patent number: 7475593
    Abstract: A borehole logging system for the measure and the telemetry of properties and conditions of a well borehole environs. The system is embodied to measure fluids within the borehole, to measure high resolution images of the wall of the borehole, to transfer of data to and from equipment operating within the borehole environment, and to determine the status of equipment operating within the borehole. The embodiments are based upon emission, measurement and processing of electromagnetic radiation in the near infrared (NIR) region of the radiation spectrum.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: January 13, 2009
    Assignee: Precision Energy Services, Inc.
    Inventor: Richard Odom
  • Publication number: 20090007650
    Abstract: 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.
    Type: Application
    Filed: July 3, 2007
    Publication date: January 8, 2009
    Inventor: Robert Douglas Hayworth
  • Publication number: 20080307860
    Abstract: A detector (1) is used distinguishing a phase from a multiphase fluid mixture. The detector comprises: an optical probe (2) for optically distinguishing one of the phases from the multiphase fluid mixture, the optical probe having a tip (20) in contact with the multiphase fluid mixture, and a detector cell (3) arranged to be coupled to a multiphase fluid mixture flowing line (L) and to the optical probe (2). The detector cell (1) further comprises: an internal flowing line (4) arranged so that the phases of the multiphase fluid mixture flowing in the internal flowing line are driven-on by capillarity effect, and a bore (5) coupled to the internal flowing line for positioning the optical probe in the detector cell so that the multiphase fluid mixture flows substantially around the tip (20) of the optical probe.
    Type: Application
    Filed: July 11, 2005
    Publication date: December 18, 2008
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Paul Guieze, Bruno Pinguet
  • Publication number: 20080257032
    Abstract: 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.
    Type: Application
    Filed: April 19, 2007
    Publication date: October 23, 2008
    Inventors: David Zollo, Andrew Beck, Sean Walters
  • Publication number: 20080186024
    Abstract: A method and apparatus useful to determine characteristics of fluid flow, such as fluid holdup and flow velocity. The apparatus comprises a flow tube, a permanent magnet, a first set of coils, and a second set of coils. The first set of coils creates a radio frequency magnetic field within the flow tube with a series of refocusing pulses. The second set of coils encodes velocity information onto the fluid molecules using rotating frame zeugmatography that is later decoded and used to estimate the fluid flow velocity.
    Type: Application
    Filed: April 8, 2008
    Publication date: August 7, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Carl Edwards
  • Publication number: 20080183392
    Abstract: Dynamic gain setting is provided for a multiphase flow measuring device that measures in-phase and quadrature signals. The average current at a plurality of measure electrodes is determined and subtracted from the individual measure currents to give a measurement with improved dynamic range.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 31, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Stanislav W. Forgang
  • Patent number: 7389684
    Abstract: The gas lift flow surveillance device has a paddle having a rod with a target attached to one end and a paddle block attached to the opposite end. The paddle block is pivotally disposed within a surveillance device housing body. A contact extending from the paddle block exerts pressure against a strain input area of a load cell. The load cell has a machine-readable millivolt output that changes according to a strain input from the paddle. A bottom section of the housing body has a bore defined therein that receives a threaded hex nipple, the rod passing through the nipple. The threaded hex nipple is adapted for attachment to a flow pipe National Pipe Thread (NPT) aperture for attaching the surveillance device to a flow pipe with the target in the fluid flow path.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: June 24, 2008
    Inventor: Jude B. Roy
  • Publication number: 20080078242
    Abstract: Caliper measurements made during rotation of a bottomhole assembly are processed to estimate the location of the BHA, and size and shape of the borehole. A piecewise elliptical fitting procedure may be used. These estimates may be used to correct measurements made by a standoff-sensitive formation evaluation sensor such as a neutron porosity tool. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 3, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Gamal A. Hassan, Philip L. Kurkoski, Pingjun Guo
  • Publication number: 20080022763
    Abstract: 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.
    Type: Application
    Filed: September 30, 2004
    Publication date: January 31, 2008
    Inventor: Robert E. Maute
  • Patent number: 7114386
    Abstract: To acquire data such as the flow rate of various phases of a fluid flowing in a hydrocarbon well (12) in production, in particular in an inclined or horizontal portion of the well, both the local speed of the fluid and the proportions of the various phases are determined in each of at least two distinct regions of the well that are not in alignment with one another parallel to the axis of the well. The regions in which the measurements are taken are advantageously distributed in a vertical plane containing the axis of the well when the well is inclined or horizontal.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: October 3, 2006
    Assignee: Schlumberger Technology Corporation
    Inventors: Eric Veignat, Fadhel Rezgui, Jean-Pierre Chyzak
  • Patent number: 7110920
    Abstract: Improved water monitoring systems comprise a test unit having an analytical device and a control system in communication with the test unit such that water supply data generated at the test unit can be communicated to the control system. In some embodiments, the analytical device can be a fluorometer that can monitor the fluorescence induction pattern of algae located in the water, which can indicate, when the induction pattern is compared against known baseline induction patterns, the potential presence of toxic chemicals located in the water supply. In other embodiments, the analytical device can comprise, for example, a pH meter, an infrared spectroscopy (IR) device or the like. In some embodiments, the test unit can provide continuous intake, analysis, and can communicate water supply data to the control system via a wireless communication device, fiber optic cable or the like.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: September 19, 2006
    Assignee: BAE Systems Land & Armaments L.P.
    Inventors: Steven M. McCarter, Ronald W. Jenkins
  • Patent number: 7064677
    Abstract: A method monitors servicing operations of a vehicle capable for example of pumping various fluid treatments down into a well being serviced at a well site. The method records the vehicle's engine speed and the values of one or more service-related variables, such as pressure, temperature, flow rate, and pump strokes per minute. These variables are recorded as a function of the time of day in accordance with when they were sensed, and are associated with a well site identifier to form a data record. Global Positioning System data associated with the service vehicle assists in determining the well site identifier or can constitute the well site identifier. In some embodiments, the data record is communicated over a wireless communication link from a remote well site to a central office.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: June 20, 2006
    Assignee: Key Energy Services, Inc.
    Inventor: Frederic M Newman
  • Patent number: 6928864
    Abstract: The present invention provides a tool assembly for use in field applications to monitor at least one condition in a well or other hole. The tool assembly may include a computing unit for directing operation of the tool assembly and may be sized to be operable in a hole having a diameter of 1 inch, and in some cases even smaller. In one aspect, the tool assembly is designed to significantly conserve power. Sensor readings may be taken at different schedules to conserve power when frequent readings are not required. Also, internal electronics of the tool assembly can be operated at a low voltage. In one aspect, the tool assembly is assemblable by simple rotatable engagement of the components, with electrical interconnections being made automatically by the rotatable engagement without keying of components. In another aspect, the tool assembly is networkable with other like tool assemblies and monitorable from a central location.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: August 16, 2005
    Assignee: In-Situ, Inc.
    Inventors: Kent D. Henry, Zachary A. Gray, Mark A. Watson, Stanley B. Smith, Korey L. Kreitman
  • Patent number: 6860325
    Abstract: This invention comprises the use of a variable orifice valve as a flow controller and flow meter. Pressure measurements are taken upstream and downstream of the variable orifice valve by way of a differential pressure measurement mechanism. The differential pressure measurement mechanism may comprise two separate absolute pressure measurement devices or a single differential pressure measurement device. Flow rate through the valve is determined from the pressure drop across the valve. In wellbores having multiple zones, a variable orifice valve together with a differential pressure measurement mechanism may be deployed for each zone. The flow rate through each of the zones and at the surface can then be monitored and controlled.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: March 1, 2005
    Assignee: Schlumberger Technology Corporation
    Inventors: Terizhandur S. Ramakrishnan, Gary M. Oddie, Sam Smonian
  • Patent number: 6851444
    Abstract: A system is provided that monitors at the wellsite injection of additives into formation fluids recovered through wellbores and controls the supply of such additives from remote locations. A pump supplies the selected additive from a source at the wellsite into the wellbore via a suitable supply line. A flow meter in the supply line measures the flow rate of the additive through the supply line and generates signals representative of the flow rate. A controller at the wellsite determines the flow rate from the flow meter signals and in response thereto controls the pump to control the flow rate of the additive to the well. The wellsite controller interfaces with a suitable two-way communication link and transmits signals and data representative of the flow rate, and other parameters to a second remote controller. The remote controller transmits command signals to the wellsite controller representative of any change desired for the flow rate.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: February 8, 2005
    Assignee: Baker Hughes Incorporated
    Inventors: Kristopher T. Kohl, C. Mitch Means
  • Patent number: 6832515
    Abstract: An apparatus and method for determining at least one downhole formation property is disclosed. The apparatus includes a probe and a pretest piston positionable in fluid communication with the formation, and a series of flowlines pressure gauges, and valves configured to selectively draw into the apparatus for measurement of one of formation fluid and mud. The method includes performing a first pretest to determine an estimated formation parameter; using the first pretest to design a second pretest and generate refined formation parameters whereby formation properties may be estimated.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: December 21, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Jean-Marc Follini, Julian Pop
  • Patent number: 6820702
    Abstract: An automated method and system for recognizing a well control event includes determining a state of drilling operations. When drilling operations are in a circulating state, a benchmark for a relative flow value. The relative flow value is based on a flow of drilling fluid into a well bore and a flow of drilling fluid out of the well bore. A limit on variation of the relative flow value is determined from the benchmark. A cumulative sum for the relative flow value is determined over time in response to the relative flow value exceeding the limit. A well control event is recognized based on the cumulative sum.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: November 23, 2004
    Assignee: Noble Drilling Services Inc.
    Inventors: Michael Niedermayr, Mitchell D. Pinckard, Gerhard P. Glaser, Joao Tadeu Vidal de Sousa
  • Patent number: 6799634
    Abstract: A tracer release method for monitoring fluid flow in a well utilizes a deformable container having a liquid tracer material which container has an outlet which debouches into the neck portion of a venturi in a well conduit. The container has a wall which is at least partly exposed to the fluid pressure at the relatively wide in- or outlet of the venturi, so that an amount of tracer is injected continuously or discontinuously into the well effluents which is proportional to the pressure difference p across the venturi, which pressure difference p is indicative of the fluid density &rgr; and squared fluid velocity &ugr;.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: October 5, 2004
    Assignee: Shell Oil Company
    Inventors: Floor Andre Hartog, Ulfert Cornelis Klomp, Jean Eric Negre, Douwe Johannes Runia, Yves Veran
  • Publication number: 20040083804
    Abstract: 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.
    Type: Application
    Filed: June 20, 2003
    Publication date: May 6, 2004
    Inventor: Robert E. Maute
  • Patent number: 6711947
    Abstract: 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.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: March 30, 2004
    Assignee: REM Scientific Enterprises, Inc.
    Inventor: Robert E. Maute
  • Patent number: 6650280
    Abstract: System and methods are disclosed for fluid measurements which may be utilized to determine mass flow rates such as instantaneous mass flow of a fluid stream. In a preferred embodiment, the present invention may be utilized to compare an input mass flow to an output mass flow of a drilling fluid circulation stream. In one embodiment, a fluid flow rate is determined by utilizing a microwave detector in combination with an acoustic sensor. The acoustic signal is utilized to eliminate 2&pgr; phase ambiguities in a reflected microwave signal. In another embodiment, a fluid flow rate may be determined by detecting a phase shift of an acoustic signal across two different predetermined transmission paths. A fluid density may be determined by detecting a calibrated phase shift of an acoustic signal through the fluid. In another embodiment, a second acoustic signal may be transmitted through the fluid to define a particular 2&pgr; phase range which defines the phase shift.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: November 18, 2003
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: G. Dickey Arndt, Phong H. Ngo, James R. Carl, Kent A. Byerly
  • Publication number: 20030131991
    Abstract: A tracer release method for monitoring fluid flow in a well utilizes a deformable container comprising a liquid tracer material which container has an outlet which debouches into the neck portion of a venturi in a well conduit. The container has a wall which is at least partly exposed to the fluid pressure at the relatively wide in- or outlet of the venturi, so that an amount of tracer is injected continuously or discontinuously into the well effluents which is proportional to the pressure difference p across the venturi, which pressure difference p is indicative of the fluid density &rgr; and squared fluid velocity &ugr;.
    Type: Application
    Filed: November 27, 2002
    Publication date: July 17, 2003
    Inventors: Floor Andre Hartog, Ulfert Cornelis Klomp, Jean Eric Negre, Douwe Johannes Runia, Yves Veran
  • Patent number: 6578634
    Abstract: A method monitors pumping operations of a vehicle that pumps various fluid treatments down into a well being serviced at a well site. The method records the vehicle's engine speed and the values of one or more fluid-related variables, such as pressure, temperature, flow rate, and pump strokes per minute. The values are recorded as a function of the time of day that the variables and engine speed were sensed. In some embodiments, the recorded values are communicated over a wireless communication link from a remote well site to a central office.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: June 17, 2003
    Assignee: Key Energy Services, Inc.
    Inventor: Frederic M. Newman
  • Publication number: 20030051873
    Abstract: A control system and method for determining optimal fluid injection pressure is based upon a model of a growing hydrofracture due to waterflood injection pressure. This model is used to develop a control system optimizing the injection pressure by using a prescribed injection goal coupled with the historical times, pressures, and volume of injected fluid at a single well. In this control method, the historical data is used to derive two major flow components: the transitional component, where cumulative injection volume is scaled as the square root of time, and a steady-state breakthrough component, which scales linearly with respect to time. These components provide diagnostic information and allow for the prevention of rapid fracture growth and associated massive water break through that is an important part of a successful waterflood, thereby extending the life of both injection and associated production wells in waterflood secondary oil recovery operations.
    Type: Application
    Filed: April 2, 2002
    Publication date: March 20, 2003
    Inventors: Tadeusz Wiktor Patzek, Dimitriy Borisovich Silin, Asoke Kumar De
  • Patent number: 6532813
    Abstract: During the determination of a fill level of liquid in a container, a measuring chamber, in which there is initially the same fill level as in the container, is completely filled with liquid. The time required for completely filling the measuring chamber is measured and compared with previously determined values. The fill level in the container is then determined by comparison of the measured values with the known values.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: March 18, 2003
    Assignee: Mannesmann VDO AG
    Inventor: Bernd Pauer