Downhole Patents (Class 73/152.28)
  • Patent number: 10975685
    Abstract: A method includes obtaining a sample of a fluid from a subterranean zone while the fluid is being extracted from the zone. A chemical composition of the sample is measured. A temperature and a pressure of the subterranean zone are measured. The measured properties are associated with a time point. The measured properties are incorporated into a set of historical data. A chemical composition of a fluid to be extracted from the subterranean zone at a future time point is determined based on the set of historical data. A presence of a liquid phase in the fluid to be extracted from the subterranean zone at the future time point is determined. A flow rate of the fluid being extracted from the subterranean zone is adjusted in response to determining the presence of the liquid phase in the fluid to be extracted from the subterranean zone at the future time point.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: April 13, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Vinay Raman, Anthony Andrew Kmetz, II, Jason R. Cox
  • Patent number: 10941645
    Abstract: A method includes obtaining a sample of a fluid from a subterranean zone while the fluid is being extracted from the zone. A chemical composition of the sample is measured. A temperature and a pressure of the subterranean zone are measured. The measured properties are associated with a time point. The measured properties are incorporated into a set of historical data. A chemical composition of a fluid to be extracted from the subterranean zone at a future time point is determined based on the set of historical data. A presence of a liquid phase in the fluid to be extracted from the subterranean zone at the future time point is determined. A flow rate of the fluid being extracted from the subterranean zone is adjusted in response to determining the presence of the liquid phase in the fluid to be extracted from the subterranean zone at the future time point.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: March 9, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Vinay Raman, Anthony Andrew Kmetz, II, Jason R. Cox
  • Patent number: 10858930
    Abstract: A method includes obtaining a sample of a fluid from a subterranean zone while the fluid is being extracted from the zone. A chemical composition of the sample is measured. A temperature and a pressure of the subterranean zone are measured. The measured properties are associated with a time point. The measured properties are incorporated into a set of historical data. A chemical composition of a fluid to be extracted from the subterranean zone at a future time point is determined based on the set of historical data. A presence of a liquid phase in the fluid to be extracted from the subterranean zone at the future time point is determined. A flow rate of the fluid being extracted from the subterranean zone is adjusted in response to determining the presence of the liquid phase in the fluid to be extracted from the subterranean zone at the future time point.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: December 8, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Vinay Raman, Anthony Andrew Kmetz, II, Jason R. Cox
  • Patent number: 10782210
    Abstract: A sampling system for taking fuel samples from an external fuel tank includes a mobile platform, a sample tank carried by the mobile platform, and a supply line connected to the sample tank and configured to conduct the fuel from the external fuel tank into the sample tank. A mixing device is disposed in the sample tank and configured to mix fuel in the sample tank. A discharge line connected to the sample tank and configured to discharge the fuel from the sample tank. A sampling device is configured for removing a partial quantity of the fuel from the sample tank. A method for operating the sampling system is also described.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: September 22, 2020
    Assignee: ROFA PRAHA S.R.O.
    Inventors: Matthias Fiedler, Milan Solar
  • Patent number: 10746017
    Abstract: A method includes receiving first fluid property data from a first location in a hydrocarbon reservoir and receiving second fluid property data from a second location in the hydrocarbon reservoir. The method includes performing a plurality of realizations of models of the hydrocarbon reservoir according to a respective plurality of one or more plausible dynamic processes to generate one or more respective modeled fluid properties. The method includes selecting the one or more plausible dynamic processes based at least in part on a relationship between the first fluid property data, the second fluid property data, and the modeled fluid properties obtained from the realizations to identify potential disequilibrium in the hydrocarbon reservoir.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: August 18, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Youxiang Zuo, Kang Wang, Andrew E. Pomerantz, Soraya S. Betancourt Pocaterra, Jerimiah Forsythe, Cosan Ayan, Hadrien Dumont, Vinay Mishra, Jesus Alberto Canas, Daniel M. Tetzlaff, Anish Kumar, Vladislav Achourov, Thomas Pfeiffer, Shu Pan, Yi Chen, Armin Kauerauf, Oliver C. Mullins
  • Patent number: 10473502
    Abstract: A sensor is provided for detecting relative amounts of components within a mixture. The sensor includes a dielectric transducer comprising a first conductive rod and a second conductive rod; an oscillator configured to apply a voltage to the first conductive rod; an amplifier configured receive a voltage from the second conductive rod as input; and a controller configured to periodically sample an output voltage of the amplifier to generate a plurality of sample voltages, compare the sample voltages against distinct voltage values for identifying each of the components to determine the relative amounts of the components.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 12, 2019
    Inventor: Joseph Baumoel
  • Patent number: 10416349
    Abstract: Methods for developing equation-of-states (EOS) composition models for predicting petroleum reservoir fluid behavior and understanding fluid heterogeneity in unconventional shale plays are described. In particular, limited geochemical data from samples taken from the reservoir of interested are utilized to build and tune the EOS model and improve predictions. Real-time applications are also described.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: September 17, 2019
    Assignee: CONOCOPHILLIPS COMPANY
    Inventors: Vishal Bang, Olufemi A. Jokanola
  • Patent number: 9921204
    Abstract: Systems and methods for predicting fluid composition in a reservoir formation are disclosed. To accurately and efficiently predict the composition of a sample fluid, an absorption spectrum is obtained over a prefixed set of wavelength channels and a set of basis spectra is received for all constituents of interest in the sample fluid. A set of a-priori constraints on the obtained absorption spectrum and constituent properties to be determined is then obtained, before calculating a joint probability distribution of all constituents of interest based on the obtained spectrum, basis spectra and a-priori constraints. In one embodiment, qualitative states are also computed for all constituents of interest based on the obtained spectrum, basis spectra and a-priori constraints.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: March 20, 2018
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Hamed Chok, Endre Anderssen, Jess V. Ford
  • Patent number: 9581014
    Abstract: A method for predicting asphaltene onset pressure in a reservoir is provided. In one embodiment, the method includes performing downhole fluid analysis of formation fluid via a downhole tool at a measurement station at a first depth in a wellbore and determining an asphaltene gradient for the formation fluid at the measurement station. Asphaltene onset pressure for a second depth in the wellbore may then be predicted based on the downhole fluid analysis and the determined asphaltene gradient. Additional methods, systems, and devices are also disclosed.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: February 28, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yi Chen, Youxiang Zuo, Oliver C. Mullins
  • Patent number: 9359891
    Abstract: An apparatus for estimating a property of an earth formation includes a carrier configured to be conveyed through a borehole penetrating the formation and a single probe configured to be extended from the carrier and to seal with a wall of the borehole. The apparatus further includes a fluid analysis sensor disposed at the carrier and configured to sense a property of a formation fluid sample extracted from the formation by the probe. A coring device is disposed at the carrier and configured to extend into the probe, to drill into the wall of the borehole, and to extract a core sample. A core sample analysis sensor is disposed at the carrier and configured to sense a property of the core sample. A processor is configured to receive data from the fluid analysis sensor and the core sample analysis sensor and to estimate the property using the data.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: June 7, 2016
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Francisco Galvan-Sanchez, Olufemi A. Adegbola, Chris Morgan, Gigi Zhang, Matthias Meister
  • Patent number: 9074460
    Abstract: A method of evaluating a gradient of a composition of materials in a petroleum reservoir, comprising sampling fluids from a well in the petroleum reservoir in a logging operation, measuring an amount of contamination in the sampled fluids, measuring the composition of the sampling fluids using a downhole fluid analysis, measuring an asphaltene content of the sampling fluids at different depths; and fitting the asphaltene content of the sampling fluids at the different depths to a simplified equation of state during the logging operation to determine the gradient of the composition of the materials in the petroleum reservoir.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: July 7, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Andrew E. Pomerantz, Youxiang Zuo, Denise E. Freed, Oliver C. Mullins
  • Patent number: 9038451
    Abstract: A method for detecting the formation of at least one phase in a mixture, particularly a hydrocarbon mixture. The method may include using a probe to expose a portion of the mixture to electromagnetic radiation to determine the value of a parameter of interest indicative of the formation of a phase. The method may also include using the value of the parameter of interest with a correlation between a known property of the mixture and the value of a parameter of interest to detect the formation of a phase.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: May 26, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Corina L. Sandu, Sebatian Csutak, Marco Respini, Huzeifa Ismail, Michael O. Brauchle
  • Publication number: 20150135816
    Abstract: An arrangement for sampling a fluid, having a sample bottle with an associated piston, wherein the piston separates the sample bottle into an inlet side and a water side, a fluid sample line connected to the sample bottle at the inlet side, the fluid sample line transporting a fluid, a solenoid connected to the sample bottle on the water side of the sample bottle and a check valve connected to the sample bottle on the water side of sample bottle, wherein fluid enters the sample bottle on the inlet side upon actuation of at least one of the solenoid and the check valve on the water side of the sample bottle.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 21, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Adriaan Gisolf, Nathan Landsiedel
  • Patent number: 8991483
    Abstract: Apparatus and method for collecting and preserving in representative condition a fluid sample from a reservoir which comprises: positioning a sample receptacle in the vicinity of a subterranean zone to be sampled, allowing or causing the sample to first flow into the sample receptacle, wherein the movement of the sample into the sample receptacle is restricted by the movement of a sampling piston, and wherein the movement of the sampling piston is further controlled by the rotation of an electrical motor connected to the sample piston such that the rotation of the electric motor translates to lateral movement of the sample piston, the lateral movement of the sample piston in turn allowing sample to enter the sample receptacle, and wherein once an adequate volume of sample has been collected, reversing the direction of the electrical motor will serve to cause the sample piston to exert pressure on the collected sample.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: March 31, 2015
    Inventor: Cyrus Aspi Irani
  • Patent number: 8970093
    Abstract: A transducer includes a preload adapter having a sleeve portion and an end and a housing including a seating portion and a shaft portion that extends from the seating portion. The transducer also includes a piezoelectric element contained at least partially within a chamber that is at least partially defined by the sleeve portion and shaft portion and a diaphragm coupled to an external side of the end such that motion of the piezoelectric element causes motion of the diaphragm.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: March 3, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Dwight W. Swett, Holger C. Stibbe
  • Patent number: 8955375
    Abstract: A device for sampling fluid from an earth formation is disclosed. The device includes: an inlet port disposable in fluid communication with the fluid in a borehole; an injector including an injection chamber in fluid communication with the inlet port, the injector configured to receive a portion of the fluid and direct the fluid toward an analysis unit for analyzing constituent materials in the fluid; and a high pressure valve configured to admit the portion of the fluid at a borehole pressure and release the portion of the fluid into the injector, the portion having a volume that is less than or equal to about one microliter. A system and method for analyzing constituents of fluid in a borehole in an earth formation is also disclosed.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: February 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Rocco DiFoggio, Paul Allan Bergren
  • Publication number: 20140360257
    Abstract: A system includes a downhole formation fluid sampling tool and a processor. An optical spectrometer of the downhole formation fluid sampling tool is able to measure an optical characteristic of a formation fluid flowing through the downhole formation fluid sampling tool over a plurality of wavelengths. The optical spectrometer generates optical spectra data indicative of this optical characteristic. The processor is designed to receive the optical spectra data generated by the optical spectrometer and to estimate a formation volume factor of the formation fluid based on the optical spectra data.
    Type: Application
    Filed: June 9, 2013
    Publication date: December 11, 2014
    Inventors: Kentaro Indo, Kai Hsu, Julian Pop
  • Patent number: 8904859
    Abstract: A gas separation and detection tool for performing in situ analysis of borehole fluid is described. The tool comprises a sampling chamber for a downhole fluid. The sample chamber comprises a detector cell with an opening. The tool also comprises a gas separation module for taking a gas from the downhole fluid. The gas separation module comprises a membrane located in the opening, a support for holding the membrane, and a sealant applied between the housing and the membrane or support. Moreover, the tool comprises a gas detector for sensing the gas.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: December 9, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Jimmy Lawrence, Tim G. J. Jones, Kentaro Indo, Tsutomu Yamate, Noriyuki Matsumoto, Michael M. Toribio, Hidetoshi Yoshiuchi, Andrew Meredith, Nathan S. Lawrence, Li Jiang, Go Fujisawa, Oliver C. Mullins
  • Patent number: 8883508
    Abstract: In some embodiments, apparatus and systems, as well as methods, may operate to draw a formation fluid sample into a sampling port included in a down hole tool, to vaporize some part of the fluid sample to substantially fill an injection port with a gas phase, to differentiate gas components in the gas phase to provide differentiated gas components along a concentration gradient, to detect the differentiated gas components, and to determine a fingerprint of the differentiated gas components. Other apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: November 11, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher M. Jones, Michael T. Pelletier
  • Patent number: 8849582
    Abstract: A method and apparatus is provided for off-line concentration determination of components liquid hydrocarbon mixtures such as crude or heavy oil. A sampling unit continuously delivers a sample volume to a fluid flow path while a temperature control module maintains the sample at a predetermined setpoint temperature. A homogenization module helps prevent sample stratification while a flow control module maintain a constant sample flow rate. A spectrometer is communicably coupled to an optical transmission cell to transmit and receive radiation. The transmission cell includes collection optics to capture and aggregate non-collimated radiation emerging from the cell, for transmission to the spectrometer. The spectrometer measures sample spectra at a predetermined rate of flow of the sample volume through the transmission cell. A processor is configured to capture and use the spectra in combination with a model of spectra for the hydrocarbon mixture.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: September 30, 2014
    Assignee: Invensys Systems, Inc.
    Inventors: W. Marcus Trygstad, Bruce Keen, Russell Jackson
  • Patent number: 8825408
    Abstract: Methods and systems to characterize a fluid in a reservoir to determine if the fluid is in one of equilibrium or non-equilibrium in terms of one of gravity, solvency power, entropy effect or some combination thereof. The method includes acquiring tool data at each depth for each fluid sample of at least two fluid samples wherein each fluid sample is at a different depth and communicating the tool data to a processor. Determining formation properties of each fluid sample to obtain formation property data and determining fluid properties for each fluid sample to obtain fluid property data. Selecting a mathematical model based on one of gravity, solvency power or entropy, in view of a fluid property, using one of tool data, formation property data, fluid property data, known fluid reservoir data or some combination thereof, to predict if the fluid is in an equilibrium distribution or a non-equilibrium distribution.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: September 2, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Denise E Freed, Kentaro Indo, Oliver C Mullins, John Ratulowski, Julian Zuo
  • Patent number: 8762063
    Abstract: A processor accepts sensor data about a geological formation from a sensor. The sensor data is such that processing the sensor data using a processing technique to estimate a parameter of the geological formation without a constraint, whose value is not yet known, produces a plurality of non-unique estimates of the parameter. The processor accepts more than two time-displaced images of fluid sampled from the geological formation. The time displacements between the images are substantially defined by a mathematical series. The processor processes the images to determine the constraint. The processor processes the sensor data using the processing technique constrained by the constraint to estimate the parameter of the geological formation. The processor uses the estimated parameter to affect the drilling of a well through the geological formation.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: June 24, 2014
    Inventors: Wei Zhang, Christopher M. Jones, Michael T. Pelletier, Robert S. Atkinson, Stephen A. Zannoni
  • Publication number: 20140166269
    Abstract: A downhole compressible fluid sampling tool includes a primary fluid flow line deployed between a fluid inlet probe and a fluid outlet line. A fluid analysis module and a fluid pumping module are deployed in the primary fluid flow line. The fluid pumping module includes a pump in parallel with a bypass flow line having a bypass valve. A compressible fluid sampling vessel is deployed in parallel with and in fluid communication with the primary flow line. A method for obtaining a sample of a compressible downhole fluid includes turning off the pump and opening the bypass valve to enable the downhole fluid to flow into the fluid sampling vessel. The pump may then be optionally turned back on to pressurize the sample.
    Type: Application
    Filed: March 13, 2013
    Publication date: June 19, 2014
    Applicant: Schlumberger Technology Corporation
    Inventors: Julian Pop, Pierre Henri Campanac
  • Patent number: 8752620
    Abstract: An assembly capable of being disposed in a subterranean bore for obtaining a fluid sample is described. The assembly can include an apparatus having a sample chamber and a housing encasing the sample chamber and providing a pressure source. The pressure source can be disposed of in an annulus defined by the sample chamber and the housing. The assembly can be attached to a slick line or wire line and conveyed into a wellbore.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 17, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Vincent Paul Zeller, Paul David Ringgenberg, Scott Luke Miller, Cyrus Aspi Irani
  • Patent number: 8744774
    Abstract: Cleanup monitoring and prediction in real time targeting estimation of pumpout volume versus final contamination, including detecting breakthrough of formation fluid to a sampling tool and detecting transition of cleanup regime from a predominantly circumferential cleanup regime to a predominantly vertical cleanup regime. Similar workflow can be employed for estimating contamination at the end of cleanup production for a given pumpout volume.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: June 3, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Alexander Zazovsky
  • Patent number: 8708042
    Abstract: An apparatus for controlling fluid flow that includes a chamber having a first valve and a second valve; a sensor that senses a pressure parameter associated with the chamber; and a controller programmed to operate the first valve and the second valve in response to the sensed pressure parameter may be used to control for flow and to obtain data relating to a formation and/or formation fluid.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: April 29, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Tobias Kischkat, Eick Niemeyer, Alexander Otto
  • Publication number: 20140069184
    Abstract: The invention provides a device and method to quantitatively measure concentrations of volatile organic compound vapors below the ground surface using a preferably “fully” passive device that is placed in a drilled or bored hole for a specified period of time, wherein the sampler constrains the uptake rate to match values that minimize or eliminate the starvation effect and provide acceptable sensitivity for most soil types as calculated via mathematical models.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Inventors: Todd Arthur McAlary, Suresh Seethapathy, Tadeusz Gorecki
  • Publication number: 20130319102
    Abstract: A downhole tool has a housing assembly with an interior and an exterior. A sensor is disposed to the interior of the housing assembly. The sensor is operable to obtain data relative to a fluid parameter of a fluid disposed within the interior of the housing assembly and operable to wirelessly transmit the data to a data acquisition device disposed to the exterior of the housing assembly responsive to interrogation by the data acquisition device.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 5, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Paul David Ringgenberg, Paul I. Herman
  • Patent number: 8508741
    Abstract: An apparatus and method for estimating a parameter of interest in a downhole fluid using fluid testing module. The fluid testing module may include: a substrate comprising at least one microconduit, and a sensor. The sensor may be disposed within the at least one microconduit or external. The apparatus may include a fluid transporter for moving fluid within the microconduit. The method includes estimating a parameter of interest using the fluid testing module.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: August 13, 2013
    Assignee: Baker Hughes Incorporated
    Inventor: Sunil Kumar
  • Patent number: 8492152
    Abstract: Apparatus and systems, as well as methods, may operate to draw a formation fluid sample into a sampling port included in a down hole tool or tool body, to vaporize some part of the fluid sample to substantially fill an injection port with a gas phase, to differentiate gas components in the gas phase to provide differentiated gas components along a concentration gradient in a receiving section, to detect the differentiated gas components with a detector, and to determine a fingerprint of the differentiated gas components. A reaction section and a vacuum section may be used for waste consumption and/or absorption.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: July 23, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher M. Jones, Michael T. Pelletier
  • Publication number: 20130168088
    Abstract: A downhole piston accumulator system is disclosed, such as for a formation tester. The soft piston of the system is designed to withstand high pressure downhole fluids in small volume cylinders, the fluid being collected for optical fluid identification or other analyses. The temperature range of the fluid may vary widely, which can be accommodated by the soft piston. Sealing components on the soft piston include additional materials for sealing the soft piston and otherwise helping to accommodate the wide ranging pressures and temperatures. The piston container or cylinder is designed to properly capture the piston and accommodate piston movement. The piston accumulator system allows an outer or exterior position sensor to detect piston movement, such as by a magnetic sensor.
    Type: Application
    Filed: September 8, 2010
    Publication date: July 4, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Robert Atkinson, Nathan Harder, Michael T. Pelletier
  • Publication number: 20130145837
    Abstract: A sensor module for a sensing apparatus configured for operation downhole, within a borehole. The sensor module comprises a sensor array having a plurality of sensors to sense selected formation parameters and a control system for selective and independent operation of each sensor of the sensor array. Each sensor of the sensor array is configured or designed as a discrete sensor unit for individual and independent communication and control. Each sensor of the sensor array may have an associated electronics module that provides standardized electronic connectivity with the control system.
    Type: Application
    Filed: February 12, 2013
    Publication date: June 13, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: SCHLUMBERGER TECHNOLOGY CORPORATION
  • Publication number: 20130113468
    Abstract: For some embodiments, a system includes a moveable structure, moveable in at least a linear direction relative to a supporting structure, a magnetic field sensor assembly including a magnetic field sensor, and a magnet, wherein one of the magnet and the magnetic field sensor is coupled to the moveable structure, and wherein the other of the magnet and the magnetic field sensor assembly is coupled to the supporting structure, and wherein the magnetic field sensor assembly is configured to determine the relative position of the magnet to the magnetic field sensor.
    Type: Application
    Filed: July 23, 2010
    Publication date: May 9, 2013
    Applicant: Halliburton Energy Service ,Inc.
    Inventors: Li Gao, Jeffrey L. Moore, Jimmy W. Anders, Michael T. Pelletier
  • Patent number: 8434356
    Abstract: A system and method for determining at least one fluid characteristic of a downhole fluid sample using a downhole tool are provided. In one example, the method includes performing a calibration process that correlates optical and density sensor measurements of a fluid sample in a downhole tool at a plurality of pressures. The calibration process is performed while the fluid sample is not being agitated. At least one unknown value of a density calculation is determined based on the correlated optical sensor measurements and density sensor measurements. A second optical sensor measurement of the fluid sample is obtained while the fluid sample is being agitated. A density of the fluid sample is calculated based on the second optical sensor measurement and the at least one unknown value.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: May 7, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Kai Hsu, Kentaro Indo, Oliver Mullins, Peter S. Hegeman
  • Patent number: 8424377
    Abstract: An apparatus and method for monitoring the water tables in boreholes, such as boreholes used as sampling wells for sampling contaminants in ground water. Fluctuations in one or more ground water levels can be monitored and recorded using transducers, and the changes in the water levels evaluated and considered, particularly in the context of sampling for contaminants where subsurface pollution remediation is contemplated or ongoing. The changes in ground water levels can be tracked in time and correlated, as desired, with the water sampling regime. The transducers used for monitoring pressure changes attributable to water table changes are located advantageously above the surface of the ground, where they are accessible for re-use, replacement, or repair. Apparatus and method for providing an air-coupling between the transducers and subsurface sampling points is disclosed.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: April 23, 2013
    Inventor: Carl E. Keller
  • Patent number: 8367413
    Abstract: Apparatus and systems, as well as methods, may operate to draw a formation fluid sample into a sampling port included in a down hole tool or tool body, to vaporize some part of the fluid sample to substantially fill an injection port with a gas phase, to differentiate gas components in the gas phase to provide differentiated gas components along a concentration gradient in a receiving section, to detect the differentiated gas components with a detector, and to determine a fingerprint of the differentiated gas components. The receiving section may comprise a diffusion section. A reaction section and a vacuum section may be used for waste consumption and/or absorption.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: February 5, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher M. Jones, Michael T. Pelletier
  • Publication number: 20120304757
    Abstract: Methods of and apparatus to estimate one or more volumes of one or more components of a fluid in a sample chamber of a downhole tool are described. An example method includes obtaining a sample chamber volume measurement, a flowline volume measurement and a supplemental volume measurement. The example method includes drawing the fluid into the sample chamber until the sample chamber is substantially full and measuring a characteristic of the fluid in the sample chamber at a first time to obtain a first characteristic measurement. The example method also includes adding a supplemental volume corresponding to the supplemental volume measurement to over-pressurize the sample chamber after measuring the characteristic at the first time and measuring the characteristic of the fluid in the sample chamber at a second time to obtain a second characteristic measurement. The second time is after the sample chamber is over-pressurized.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 6, 2012
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: GO FUJISAWA, ANDREW J. CARNEGIE, JACK H. HARFOUSHIAN, SAIFON DAUNGKAEW SIRIMONGKOLKITTI, OLIVER C. MULLINS
  • Patent number: 8322196
    Abstract: Vibrating wire viscometers are described. Some example vibrating wire viscometer housings include a flowline through the housing to expose a first wire to a downhole fluid, a cavity in the housing to hold a magnet and to conduct one or more additional wires from the flowline to a signal generator, first and second electrically conductive posts mechanically coupled to the housing to hold the first wire in tension within the flowline, and a seal mechanically coupled to the housing to prevent access to the magnet by the downhole fluid.
    Type: Grant
    Filed: August 2, 2009
    Date of Patent: December 4, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Raghu Madhavan, Yu Hatori, Mami Nishida, Sophie Nazik Godefroy, Michael Stangeland, Go Fujisawa
  • Publication number: 20120285232
    Abstract: A downhole tool includes a body that includes a sample port through which a sample fluid can be drawn into the downhole tool and a sample channel passing through the body in fluid communication with the sample port and through which the sample fluid travels. The sample channel includes a sample chamber having an inlet and an outlet located along the sample channel, the sample chamber including three cylindrical chambers including a middle resonator cavity surrounded by two outer resonator cavities, one of the two outer resonator cavities including a sensor inlet for receiving a sensor and allowing it to fluidly contact the sample fluid as it travels through the sample channel.
    Type: Application
    Filed: March 14, 2012
    Publication date: November 15, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Dwight W. Swett
  • Patent number: 8276662
    Abstract: The present disclosure is directed to the filtering and collection of downhole fluids. An example system to filter and sample downhole fluids includes a first sampling chamber that includes one or more cone-shaped filters to receive downhole fluid, filter the downhole fluid, and store the downhole fluid, a second sampling chamber, a spool valve to allow the downhole fluid to flow into the first sampling chamber in a first position and to redirect the downhole fluid to the second sampling chamber or a base block in a second position, and a setting line to selectively move the spool valve from the first position to the second position.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: October 2, 2012
    Assignee: Schlumberger Technology Corporation
    Inventor: Mijail Barranco Niconoff
  • Publication number: 20120232799
    Abstract: A methodology that performs downhole fluid analysis of fluid properties of a reservoir and characterizes the reservoir based upon such downhole fluid analysis. The methodology acquires at least one fluid sample at a respective measurement station and performs downhole fluid analysis to measure properties of the fluid sample, including concentration of a plurality of high molecular weight components. For each of a plurality of type classes corresponding to different subsets of a predetermined set of high molecular weight components, a model is used to predict the concentration of the components of the given type class for the plurality of measurement stations. The predicted concentrations of the high molecular weight components for the plurality of type classes are then compared with corresponding concentrations measured by downhole fluid analysis for the plurality of measurement stations to identify the best matching type class.
    Type: Application
    Filed: August 10, 2010
    Publication date: September 13, 2012
    Inventors: Youxiang Zuo, Denise E. Freed, Oliver Clinton Mullins, Christopher Harrison
  • Publication number: 20120118040
    Abstract: A device for sampling fluid from an earth formation is disclosed. The device includes: an inlet port disposable in fluid communication with the fluid in a borehole; an injector including an injection chamber in fluid communication with the inlet port, the injector configured to receive a portion of the fluid and direct the fluid toward an analysis unit for analyzing constituent materials in the fluid; and a high pressure valve configured to admit the portion of the fluid at a borehole pressure and release the portion of the fluid into the injector, the portion having a volume that is less than or equal to about one microliter. A system and method for analyzing constituents of fluid in a borehole in an earth formation is also disclosed.
    Type: Application
    Filed: January 25, 2012
    Publication date: May 17, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Rocco DiFoggio, Paul Allan Bergren
  • Patent number: 8166812
    Abstract: Vibrating wire viscometers are disclosed. An example apparatus to determine the viscosity of a downhole fluid is described, the apparatus including a wire to be immersed in a downhole fluid, to vibrate when an alternating current is applied to the wire within a magnetic field, and to generate an electromotive force when vibrating within the magnetic field, the wire comprising a first resistance. The apparatus further includes a nulling circuit coupled to the wire, wherein the nulling circuit comprises a second resistance that is selectable to be substantially equal to the first resistance, and an analyzer coupled to the wire and the nulling circuit to determine the first resistance, the second resistance, and a viscosity of the downhole fluid based on the first and second resistances, at least one characteristic of the wire, and the electromotive force.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: May 1, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Emmanuel Desroques, Sophie Nazik Godefroy, Anthony Robert Holmes Goodwin, Christopher Harrison, Kai Hsu, Noriyuki Matsumoto
  • Patent number: 8151878
    Abstract: Methods and apparatus for collecting a downhole sample are provided. The method may include conveying a sampling tool in a borehole using a first carrier, conveying a sample container in the borehole using a second carrier, and introducing a downhole sample from the sampling tool to the sample container. An apparatus includes a sampling tool disposed on a first carrier, a sample container disposed on a second carrier, wherein the first carrier and the second carrier are independently conveyable in a borehole, and a coupling connectable to the sampling tool and the sample container.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: April 10, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Daniel T. Georgi, Andrew D. Kirkwood, Roger W. Fincher
  • Patent number: 8145429
    Abstract: A device for sampling fluid from an earth formation is disclosed. The device includes: an inlet port disposable in fluid communication with the fluid in a borehole; an injector including an injection chamber in fluid communication with the inlet port, the injector configured to receive a portion of the fluid and direct the fluid toward an analysis unit for analyzing constituent materials in the fluid; and a high pressure valve configured to admit the portion of the fluid at a borehole pressure and release the portion of the fluid into the injector, the portion having a volume that is less than or equal to about one microliter. A system and method for analyzing constituents of fluid in a borehole in an earth formation is also disclosed.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: March 27, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Rocco DiFoggio, Paul Allan Bergren
  • Patent number: 8131468
    Abstract: Apparatus and methods for estimating a downhole property are provided. The apparatus may include a downhole tool having a predetermined temperature calibration based at least in part on an expected downhole temperature and a temperature controller in communication with the downhole tool that maintains a downhole tool temperature substantially within the predetermined temperature calibration. A method may include conveying a downhole tool having a predetermined temperature calibration based at least in part on an expected downhole temperature in a well borehole and adjusting the temperature of the downhole tool during downhole operation to maintain a downhole tool temperature substantially within the predetermined temperature calibration.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: March 6, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Tobias Kischkat, Ansgar Cartellieri
  • Patent number: 8122956
    Abstract: A sample tank for receiving and storing sampled connate fluid from a subterranean geological formation. The sample tank includes a piston coaxially disposed within the tank. The piston can be disposed close to the end of the tank where the sampled fluid is introduced into the tank and urged along the length of the tank as sampled fluid is added to the tank. The piston includes an agitator for mixing the fluid and keeping particulates suspended within the fluid. The agitator includes a magnetic member, and is rotated by applying a varying electromagnetic field to the member.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: February 28, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Michael Shammai, Robert J. Gordon
  • Publication number: 20120000279
    Abstract: Apparatus and methods for fluid expansion in mud gas logging to determine downhole the composition of a downhole hydrocarbon fluid sample by expanding the sample using an incrementally adjustable piston or a series of fixed chambers to extract vapor containing composition components of interest.
    Type: Application
    Filed: November 17, 2009
    Publication date: January 5, 2012
    Inventors: Pierre J. Daniel, Stefan Smuk, Reza Taherian, Julian J. Pop
  • Patent number: 8069715
    Abstract: A method and apparatus for collection of pore water samples from a subsurface geologic formation, especially a vadose zone formation having high capillary tension. The method consists of injection of a fluid with known tracer concentrations therein into the formation. The injected displacement fluid develops a wetting front which carries with it the ambient pore water. The mixture of pore water and tracer-bearing displacement fluid is absorbed by a collection system, such as an absorbent member or pumping system. The injection and collection system are attached to a sealing borehole liner for emplacement in a borehole in the formation, and for other functions. Water samples collected in the collector system may be recovered by inversion of the liner, or alternatively by pumping. Samples thus removed from the borehole may be evaluated for chemicals, such as contaminants. The use of the tracer permits pore water characteristics to be distinguished from the motivating displacement fluid.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: December 6, 2011
    Inventor: Carl Keller
  • Publication number: 20110249266
    Abstract: An apparatus and method for estimating a parameter of interest in a downhole fluid using fluid testing module. The fluid testing module may include: a substrate comprising at least one microconduit, and a sensor. The sensor may be disposed within the at least one microconduit or external. The apparatus may include a fluid transporter for moving fluid within the microconduit. The method includes estimating a parameter of interest using the fluid testing module.
    Type: Application
    Filed: April 11, 2011
    Publication date: October 13, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Sunil Kumar