Vu, TX
Binh V. Vu, Houston, TX US
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20120045748 | Particulate labels - A methodology for bioassays and diagnostics in which a particulate label (ranging in size from nm-scale molecular assemblages to organisms on the scale of tens or hundreds of microns), such as, but not limited to, nanoparticles, bacteria, bacteriophage, Daphnia, and magnetic particles, serve carriers for analytes bound by molecular recognition elements such as antibodies, aptamers, etc. The described methodology is generally applicable to most pathogen assays and molecular diagnostics and also leads to enhanced sensitivity and convenience of use. | 02-23-2012 |
Chau Vu, Houston, TX US
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20140020910 | In Situ Plasticization of Polymers For Actuation or Mechanical Property Change - An in situ method deploy and/or plasticize a shape-memory material in order to change the material's physical dimensions and/or mechanical properties, including a method for deploying a shape-memory polymer having a deformed or compressed shape in an environment at a first temperature, the shape memory polymer having a first glass transition temperature which is greater than the first temperature. The method also includes decreasing the glass transition temperature of shape memory polymer from the first glass transition temperature to a second glass transition temperature which is less than or equal to the first temperature; and expanding the shape memory polymer to deploy the shape memory polymer in a deployed shape. | 01-23-2014 |
Cung Vu, Houston, TX US
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20090310441 | METHOD AND SYSTEM FOR GENERATING A BEAM OF ACOUSTIC ENERGY FROM A BOREHOLE, AND APPLICATIONS THEREOF - A compact array of transducers is employed as a downhole instrument for acoustic investigation of the surrounding rock formation. The array is operable to generate simultaneously a first acoustic beam signal at a first frequency and a second acoustic beam signal at a second frequency different than the first frequency. These two signals can be oriented through an azimuthal rotation of the array and an inclination rotation using control of the relative phases of the signals from the transmitter elements or electromechanical linkage. Due to the non-linearity of the formation, the first and the second acoustic beam signal mix into the rock formation where they combine into a collimated third signal that propagates in the formation along the same direction than the first and second signals and has a frequency equal to the difference of the first and the second acoustic signals. The third signal is received either within the same borehole, after reflection, or another borehole, after transmission, and analyzed to determine information about rock formation. Recording of the third signal generated along several azimuthal and inclination directions also provides 3D images of the formation, information about 3D distribution of rock formation and fluid properties and an indication of the dynamic acoustic non-linearity of the formation. | 12-17-2009 |
20100265794 | SYSTEM AND METHOD TO ESTIMATE COMPRESSIONAL TO SHEAR VELOCITY (VP/VS) RATIO IN A REGION REMOTE FROM A BOREHOLE - In some aspects of the disclosure, a method for creating three-dimensional images of non-linear properties and the compressional to shear velocity ratio in a region remote from a borehole using a conveyed logging tool is disclosed. In some aspects, the method includes arranging a first source in the borehole and generating a steered beam of elastic energy at a first frequency; arranging a second source in the borehole and generating a steerable beam of elastic energy at a second frequency, such that the steerable beam at the first frequency and the steerable beam at the second frequency intercept at a location away from the borehole; receiving at the borehole by a sensor a third elastic wave, created by a three wave mixing process, with a frequency equal to a difference between the first and second frequencies and a direction of propagation towards the borehole; determining a location of a three wave mixing region based on the arrangement of the first and second sources and on properties of the third wave signal; and creating three-dimensional images of the non-linear properties using data recorded by repeating the generating, receiving and determining at a plurality of azimuths, inclinations and longitudinal locations within the borehole. The method is additionally used to generate three dimensional images of the ratio of compressional to shear acoustic velocity of the same volume surrounding the borehole. | 10-21-2010 |
20100265795 | SYSTEM AND METHOD TO CREATE THREE-DIMENSIONAL IMAGES OF NON-LINEAR ACOUSTIC PROPERTIES IN A REGION REMOTE FROM A BOREHOLE - In some aspects of the disclosure, a method for creating three-dimensional images of non-linear properties and the compressional to shear velocity ratio in a region remote from a borehole using a conveyed logging tool is disclosed. In some aspects, the method includes arranging a first source in the borehole and generating a steered beam of elastic energy at a first frequency; arranging a second source in the borehole and generating a steerable beam of elastic energy at a second frequency, such that the steerable beam at the first frequency and the steerable beam at the second frequency intercept at a location away from the borehole; receiving at the borehole by a sensor a third elastic wave, created by a three wave mixing process, with a frequency equal to a difference between the first and second frequencies and a direction of propagation towards the borehole; determining a location of a three wave mixing region based on the arrangement of the first and second sources and on properties of the third wave signal; and creating three-dimensional images of the non-linear properties using data recorded by repeating the generating, receiving and determining at a plurality of azimuths, inclinations and longitudinal locations within the borehole. The method is additionally used to generate three dimensional images of the ratio of compressional to shear acoustic velocity of the same volume surrounding the borehole. | 10-21-2010 |
Cung Khac Vu, Houston, TX US
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20090238647 | METHOD FOR COUPLING SEISMOMETERS AND SEISMIC SOURCES TO THE OCEAN FLOOR - The present invention is directed to methods for coupling seismometers and seismic sources to the ocean floor that results in improved seismic data quality and repeatability for reservoir management and seismic monitoring activities. Piles are configured with a coupling device and permanently installed on the ocean floor. The seismometers or seismic sources are acoustically coupled to the piles on the ocean floor via the coupling device. The pile, seismometer and seismic source may be surface treated with a material that releases divalent cations to enhance both the acoustic coupling and the load holding capacity of the pile. The pile is permanently imbedded into the seabed while the expensive and high-maintenance seismometers and seismic sources are redeployed on the piles as needed. | 09-24-2009 |
20100002540 | DEVICE AND METHOD FOR GENERATING A BEAM OF ACOUSTIC ENERGY FROM ABOREHOLE, AND APPLICATION THEREOF - In some aspects of the invention, a device, positioned within a well bore, configured to generate and direct an acoustic beam into a rock formation around a borehole is disclosed. The device comprises a source configured to generate a first signal at a first frequency and a second signal at a second frequency; a transducer configured to receive the generated first and the second signals and produce acoustic waves at the first frequency and the second frequency; and a non-linear material, coupled to the transducer, configured to generate a collimated beam with a frequency equal to the difference between the first frequency and the second frequency by a non-linear mixing process, wherein the non-linear material includes one or more of a mixture of liquids, a solid, a granular material, embedded microspheres, or an emulsion. | 01-07-2010 |
20100322029 | SYSTEM FOR GENERATING A BEAM OF ACOUSTIC ENERGY FROM A BOREHOLE, AND APPLICATIONS THEREOF - In some aspects of the invention, a device, positioned within a well bore, configured to generate and direct an acoustic beam into a rock formation around a borehole is disclosed. The device comprises a source configured to generate a first signal at a first frequency and a second signal at a second frequency; a transducer configured to receive the generated first and the second signals and produce acoustic waves at the first frequency and the second frequency; and a non-linear material, coupled to the transducer, configured to generate a collimated beam with a frequency equal to the difference between the first frequency and the second frequency by a non-linear mixing process, wherein the non-linear material includes one or more of a mixture of liquids, a solid, a granular material, embedded microspheres, or an emulsion. | 12-23-2010 |
20100322031 | SYSTEM FOR GENERATING A BEAM OF ACOUSTIC ENERGY FROM A BOREHOLE, AND APPLICATIONS THEREOF - In some aspects of the invention, a device, positioned within a well bore, configured to generate and direct an acoustic beam into a rock formation around a borehole is disclosed. The device comprises a source configured to generate a first signal at a first frequency and a second signal at a second frequency; a transducer configured to receive the generated first and the second signals and produce acoustic waves at the first frequency and the second frequency; and a non-linear material, coupled to the transducer, configured to generate a collimated beam with a frequency equal to the difference between the first frequency and the second frequency by a non-linear mixing process, wherein the non-linear material includes one or more of a mixture of liquids, a solid, a granular material, embedded microspheres, or an emulsion. | 12-23-2010 |
20110080803 | DEVICE AND METHOD FOR GENERATING A BEAM OF ACOUSTIC ENERGY FROM A BOREHOLE, AND APPLICATIONS THEREOF - In some aspects of the invention, a method of generating a beam of acoustic energy in a borehole is disclosed. The method includes generating a first acoustic wave at a first frequency; generating a second acoustic wave at a second frequency different than the first frequency, wherein the first acoustic wave and second acoustic wave are generated by at least one transducer carried by a tool located within the borehole; transmitting the first and the second acoustic waves into an acoustically non-linear medium, wherein the composition of the non-linear medium produces a collimated beam by a non-linear mixing of the first and second acoustic waves, wherein the collimated beam has a frequency based upon a difference between the first frequency range and the second frequency, and wherein the non-linear medium has a velocity of sound between 100 m/s and 800 m/s. | 04-07-2011 |
20110080804 | DEVICE AND METHOD FOR GENERATING A BEAM OF ACOUSTIC ENERGY FROM A BOREHOLE, AND APPLICATIONS THEREOF - In some aspects of the invention, a method of generating a beam of acoustic energy in a borehole is disclosed. The method includes generating a first acoustic wave at a first frequency; generating a second acoustic wave at a second frequency different than the first frequency, wherein the first acoustic wave and second acoustic wave are generated by at least one transducer carried by a tool located within the borehole; transmitting the first and the second acoustic waves into an acoustically non-linear medium, wherein the composition of the non-linear medium produces a collimated beam by a non-linear mixing of the first and second acoustic waves, wherein the collimated beam has a frequency based upon a difference between the first frequency and the second frequency; and transmitting the collimated beam through a diverging acoustic lens to compensate for a refractive effect caused by the curvature of the borehole. | 04-07-2011 |
20110080805 | DEVICE AND METHOD FOR GENERATING A BEAM OF ACOUSTIC ENERGY FROM A BOREHOLE, AND APPLICATIONS THEREOF - In some aspects of the invention, a method of generating a beam of acoustic energy in a borehole is disclosed. The method includes generating a first broad-band acoustic pulse at a first broad-band frequency range having a first central frequency and a first bandwidth spread; generating a second broad-band acoustic pulse at a second broad-band frequency range different than the first frequency range having a second central frequency and a second bandwidth spread, wherein the first acoustic pulse and second acoustic pulse are generated by at least one transducer arranged on a tool located within the borehole; and transmitting the first and the second broad-band acoustic pulses into an acoustically non-linear medium, wherein the composition of the non-linear medium produces a collimated pulse by a non-linear mixing of the first and second acoustic pulses, wherein the collimated pulse has a frequency equal to the difference in frequencies between the first central frequency and the second central frequency and a bandwidth spread equal to the sum of the first bandwidth spread and the second bandwidth spread. | 04-07-2011 |
20120075951 | DEVICE AND METHOD FOR IMAGING OF NON-LINEAR AND LINEAR PROPERTIES OF FORMATIONS SURROUNDING A BOREHOLE - In some aspects of the disclosure, a method and an apparatus is disclosed for investigating material surrounding the borehole. The method includes generating a first low frequency acoustic wave within the borehole, wherein the first low frequency acoustic wave induces a linear and a nonlinear response in one or more features in the material that are substantially perpendicular to a radius of the borehole; directing a first sequence of high frequency pulses in a direction perpendicularly with respect to the longitudinal axis of the borehole into the material contemporaneously with the first acoustic wave; and receiving one or more second high frequency pulses at one or more receivers positionable in the borehole produced by an interaction between the first sequence of high frequency pulses and the one or more features undergoing linear and nonlinear elastic distortion due to the first low frequency acoustic wave to investigate the material surrounding the borehole | 03-29-2012 |
20120075952 | DEVICE AND METHOD FOR IMAGING OF NON-LINEAR AND LINEAR PROPERTIES OF FORMATIONS SURROUNDING A BOREHOLE - In some aspects of the disclosure, a method and an apparatus is disclosed for investigating material surrounding the borehole. The method includes generating within a borehole an intermittent low frequency vibration that propagates as a tube wave longitudinally to the borehole and induces a nonlinear response in one or more features in the material that are substantially perpendicular to a longitudinal axis of the borehole; generating within the borehole a sequence of high frequency pulses directed such that they travel longitudinally to the borehole within the surrounding material; and receiving, at one or more receivers positionable in the borehole, a signal that includes components from the low frequency vibration and the sequence of high frequency pulses during intermittent generation of the low frequency vibration, to investigate the material surrounding the borehole. | 03-29-2012 |
20120120761 | INTEGRATED SYSTEM FOR INVESTIGATING SUB-SURFACE FEATURES OF A ROCK FORMATION - A system for investigating non-linear properties of a rock formation around a borehole is provided. The system includes a first sub-system configured to perform data acquisition, control and recording of data; a second subsystem in communication with the first sub-system and configured to perform non-linearity and velocity preliminary imaging; a third subsystem in communication with the first subsystem and configured to emit controlled acoustic broadcasts and receive acoustic energy; a fourth subsystem in communication with the first subsystem and the third subsystem and configured to generate a source signal directed towards the rock formation; and a fifth subsystem in communication with the third subsystem and the fourth subsystem and configured to perform detection of signals representative of the non-linear properties of the rock formation. | 05-17-2012 |
20120120763 | SYSTEM AND METHOD FOR INVESTIGATING SUB-SURFACE FEATURES OF A ROCK FORMATION WITH ACOUSTIC SOURCES GENERATING CODED SIGNALS - A system and a method for investigating rock formations includes generating, by a first acoustic source, a first acoustic signal comprising a first plurality of pulses, each pulse including a first modulated signal at a central frequency; and generating, by a second acoustic source, a second acoustic signal comprising a second plurality of pulses. A receiver arranged within the borehole receives a detected signal including a signal being generated by a non-linear mixing process from the first-and-second acoustic signal in a non-linear mixing zone within the intersection volume. The method also includes-processing the received signal to extract the signal generated by the non-linear mixing process over noise or over signals generated by a linear interaction process, or both. | 05-17-2012 |
20120120764 | SYSTEM AND METHOD FOR INVESTIGATING SUB-SURFACE FEATURES AND 3D IMAGING OF NON-LINEAR PROPERTY, COMPRESSIONAL VELOCITY VP, SHEAR VELOCITY VS AND VELOCITY RATIO VP/VS OF A ROCK FORMATION - A system and a method for generating a three-dimensional image of a rock formation, compressional velocity VP, shear velocity VS and velocity ratio VP/VS of a rock formation are provided. A first acoustic signal includes a first plurality of pulses. A second acoustic signal from a second source includes a second plurality of pulses. A detected signal returning to the borehole includes a signal generated by a non-linear mixing process from the first and second acoustic signals in a non-linear mixing zone within an intersection volume. The received signal is processed to extract the signal over noise and/or signals resulting from linear interaction and the three dimensional image of is generated. | 05-17-2012 |
20120120765 | SYSTEM AND METHOD FOR INVESTIGATING SUB-SURFACE FEATURES OF A ROCK FORMATION WITH ACOUSTIC SOURCES GENERATING CONICAL BROADCAST SIGNALS - A method of interrogating a formation includes generating a conical acoustic signal, at a first frequency—a second conical acoustic signal at a second frequency each in the between approximately 500 Hz and 500 kHz such that the signals intersect in a desired intersection volume outside the borehole. The method further includes receiving, a difference signal returning to the borehole resulting from a non-linear mixing of the signals in a mixing zone within the intersection volume. | 05-17-2012 |
20120120766 | SYSTEM AND METHOD FOR INVESTIGATING SUB-SURFACE FEATURES OF A ROCK FORMATION USING COMPRESSIONAL ACOUSTIC SOURCES - A system and method for investigating rock formations outside a borehole are provided. The method includes generating a first compressional acoustic wave at a first frequency by a first acoustic source; and generating a second compressional acoustic wave at a second frequency by a second acoustic source. The first and the second acoustic sources are arranged within a localized area of the borehole. The first and the second acoustic waves intersect in an intersection volume outside the borehole. The method further includes receiving a third shear acoustic wave at a third frequency, the third shear acoustic wave returning to the borehole due to a non-linear mixing process in a non-linear mixing zone within the intersection volume at a receiver arranged in the borehole. The third frequency is equal to a difference between the first frequency and the second frequency. | 05-17-2012 |
20120120767 | DATA ACQUISITION AND PROCESSING SYSTEM AND METHOD FOR INVESTIGATING SUB-SURFACE FEATURES OF A ROCK FORMATION - A system and a method includes generating a first signal at a first frequency; and a second signal at a second frequency. Respective sources are positioned within the borehole and controllable such that the signals intersect in an intersection volume outside the borehole. A receiver detects a difference signal returning to the borehole generated by a non-linear mixing process within the intersection volume, and records the detected signal and stores the detected signal in a storage device and records measurement parameters including a position of the first acoustic source, a position of the second acoustic source, a position of the receiver, elevation angle and azimuth angle of the first acoustic signal and elevation angle and azimuth angle of the second acoustic signal. | 05-17-2012 |
20120123684 | SYSTEM AND METHOD FOR GENERATING MICRO-SEISMIC EVENTS AND CHARACTERIZING PROPERTIES OF A MEDIUM WITH NON-LINEAR ACOUSTIC INTERACTIONS - A method and system includes generating a first coded acoustic signal including pulses each having a modulated signal at a central frequency; and a second coded acoustic signal each pulse of which includes a modulated signal a central frequency of which is a fraction d of the central frequency of the modulated signal for the corresponding pulse in the first plurality of pulses. A receiver detects a third signal generated by a non-linear mixing process in the mixing zone and the signal is processed to extract the third signal to obtain an emulated micro-seismic event signal occurring at the mixing zone; and to characterize properties of the medium or creating a 3D image of the properties of the medium, or both, based on the emulated micro-seismic event signal. | 05-17-2012 |
20120195165 | EXPLOITATION OF SELF-CONSISTENCY AND DIFFERENCES BETWEEN VOLUME IMAGES AND INTERPRETED SPATIAL/VOLUMETRIC CONTEXT - Self-consistency and/or differences between volume images and interpreted spatial/volumetric context may be exploited for improving seismic imaging and estimation of attributes of geobodies, in accordance with one or more embodiments. Exemplary embodiments allow exploitation of positional and/or shape discrepancies and/or similarities of geobodies in image volumes associated with a geologic model of a geologic volume of interest to improve the accuracy of the geologic model and/or the image volumes. Constraints associated with the geologic volume of interest may be determined and/or utilized to confirm and/or specify dependencies between attributes that are potentially associated with individual geobodies. | 08-02-2012 |
20120197530 | EXTRACTING GEOLOGIC INFORMATION FROM MULTIPLE OFFSET STACKS AND/OR ANGLE STACKS - Geologic information may be extracted from multiple offset stacks and/or angle stacks. Offset stacks and/or angle stacks may be received that represent energy that has propagated through a geologic volume of interest from energy sources to energy receivers. Attribute volumes associated with individual source-receiver offsets and/or source-receiver angles may be determined based on corresponding offset stacks and/or angle stacks. For individual offset stacks or angle stacks, corresponding sets of geologic features represented in the attribute volumes may be identified. The sets of geologic features corresponding to the different offset stacks and/or angle stacks to may be compared to determine discrepancies and/or similarities between the sets of geologic features corresponding to the different offset stacks and/or angle stacks. Stratigraphic interpretations, stratigraphic predictions, and/or other interpretations and/or predictions may be determined based on causes of the discrepancies and/or similarities. | 08-02-2012 |
20120197531 | EXTRACTING GEOLOGIC INFORMATION FROM MULTIPLE OFFSET STACKS AND/OR ANGLE STACKS - Geologic information may be extracted from multiple offset stacks and/or angle stacks. Offset stacks and/or angle stacks may be received that represent energy that has propagated through a geologic volume of interest from energy sources to energy receivers. Attribute volumes associated with individual source-receiver offsets and/or source-receiver angles may be determined based on corresponding offset stacks and/or angle stacks. For individual offset stacks or angle stacks, corresponding sets of geologic features represented in the attribute volumes may be identified. The sets of geologic features corresponding to the different offset stacks and/or angle stacks to may be compared to determine discrepancies and/or similarities between the sets of geologic features corresponding to the different offset stacks and/or angle stacks. Stratigraphic interpretations, stratigraphic predictions, and/or other interpretations and/or predictions may be determined based on causes of the discrepancies and/or similarities. | 08-02-2012 |
20120197532 | EXTRACTING GEOLOGIC INFORMATION FROM MULTIPLE OFFSET STACKS AND/OR ANGLE STACKS - Geologic information may be extracted from multiple offset stacks and/or angle stacks. Offset stacks and/or angle stacks may be received that represent energy that has propagated through a geologic volume of interest from energy sources to energy receivers. Attribute volumes associated with individual source-receiver offsets and/or source-receiver angles may be determined based on corresponding offset stacks and/or angle stacks. For individual offset stacks or angle stacks, corresponding sets of geologic features represented in the attribute volumes may be identified. The sets of geologic features corresponding to the different offset stacks and/or angle stacks to may be compared to determine discrepancies and/or similarities between the sets of geologic features corresponding to the different offset stacks and/or angle stacks. Stratigraphic interpretations, stratigraphic predictions, and/or other interpretations and/or predictions may be determined based on causes of the discrepancies and/or similarities. | 08-02-2012 |
20120197613 | EXPLOITATION OF SELF-CONSISTENCY AND DIFFERENCES BETWEEN VOLUME IMAGES AND INTERPRETED SPATIAL/VOLUMETRIC CONTEXT - Self-consistency and/or differences between volume images and interpreted spatial/volumetric context may be exploited for improving seismic imaging and estimation of attributes of geobodies, in accordance with one or more embodiments. Exemplary embodiments allow exploitation of positional and/or shape discrepancies and/or similarities of geobodies in image volumes associated with a geologic model of a geologic volume of interest to improve the accuracy of the geologic model and/or the image volumes. Constraints associated with the geologic volume of interest may be determined and/or utilized to confirm and/or specify dependencies between attributes that are potentially associated with individual geobodies. | 08-02-2012 |
20120197614 | EXPLOITATION OF SELF-CONSISTENCY AND DIFFERENCES BETWEEN VOLUME IMAGES AND INTERPRETED SPATIAL/VOLUMETRIC CONTEXT - Self-consistency and/or differences between volume images and interpreted spatial/volumetric context may be exploited for improving seismic imaging and estimation of attributes of geobodies, in accordance with one or more embodiments. Exemplary embodiments allow exploitation of positional and/or shape discrepancies and/or similarities of geobodies in image volumes associated with a geologic model of a geologic volume of interest to improve the accuracy of the geologic model and/or the image volumes. Constraints associated with the geologic volume of interest may be determined and/or utilized to confirm and/or specify dependencies between attributes that are potentially associated with individual geobodies. | 08-02-2012 |
20130054201 | HYBRID DETERMINISTIC-GEOSTATISTICAL EARTH MODEL - Embodiments of the present technology integrate seismic data and geologic concepts into earth model building. More specifically, exemplary embodiments provide new ways to build an earth model based on information in the seismic data and geologic concepts to use as a context to interpret the seismic data and/or to add to the earth model in regions where the seismic data is missing (e.g., either no data or no data resolvability). In some embodiments, a deterministic framework is generated for an earth models through deterministic identification of discrete geobodies. A hybrid deterministic-geostatistical earth model is generated by filling stratigraphic gaps in a deterministic framework using geostatistical information and/or seismic inversion, in accordance with some embodiments. | 02-28-2013 |
20140056101 | SYSTEM AND METHOD FOR SONIC WAVE MEASUREMENTS USING AN ACOUSTIC BEAM SOURCE - A method and system for investigating structure near a borehole are described herein. The method includes generating an acoustic beam by an acoustic source; directing at one or more azimuthal angles the acoustic beam towards a selected location in a vicinity of a borehole; receiving at one or more receivers an acoustic signal, the acoustic signal originating from a reflection or a refraction of the acoustic wave by a material at the selected location; and analyzing the received acoustic signal to characterize features of the material around the borehole. | 02-27-2014 |
20140056110 | ACOUSTIC SOURCE FOR GENERATING AN ACOUSTIC BEAM - An acoustic source for generating an acoustic beam includes a housing; a plurality of spaced apart piezo-electric layers disposed within the housing; and a non-linear medium filling between the plurality of layers. Each of the plurality of piezoelectric layers is configured to generate an acoustic wave. The non-linear medium and the plurality of piezo-electric material layers have a matching impedance so as to enhance a transmission of the acoustic wave generated by each of plurality of layers through the remaining plurality of layers. | 02-27-2014 |
20140056111 | ACOUSTIC DETECTOR - An acoustic detector includes a cylindrical support member and a plurality of receiver elements that are disposed on a surface of the cylindrical support member. The plurality of receiver elements are configured to detect acoustic waves in a plurality of azimuthal angular directions. | 02-27-2014 |
20140160882 | SYSTEM AND METHOD FOR GENERATING 3D IMAGES OF NON-LINEAR PROPERTIES OF ROCK FORMATION USING SURFACE SEISMIC OR SURFACE TO BOREHOLE SEISMIC OR BOTH - A system and method of characterizing properties of a medium from a non-linear interaction are include generating, by first and second acoustic sources disposed on a surface of the medium on a first line, first and second acoustic waves. The first and second acoustic sources are controllable such that trajectories of the first and second acoustic waves intersect in a mixing zone within the medium. The method further includes receiving, by a receiver positioned in a plane containing the first and second acoustic sources, a third acoustic wave generated by a non-linear mixing process from the first and second acoustic waves in the mixing zone; and creating a first two-dimensional image of non-linear properties or a first ratio of compressional velocity and shear velocity, or both, of the medium in a first plane generally perpendicular to the surface and containing the first line, based on the received third acoustic wave. | 06-12-2014 |
Eric Vu, Houston, TX US
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20160135756 | CLINICAL METRIC FOR PREDICTING ONSET OF CARDIORESPIRATORY DETERIORATION IN PATIENTS - A system generates and displays a clinical metric based on continuously collected patient physiological data, wherein the clinical metric provides a predictive measure of the likelihood of the onset of a cardiorespiratory deterioration event in the patient in a predetermined time period in the future. If the clinical metric has a configured relationship with a predetermined threshold value, embodiments may generate an alarm in addition to or instead of displaying the clinical metric. The clinical metric thus allows clinical staff to take medically indicated actions to prevent or reduce the effects of the predicted deterioration. | 05-19-2016 |
George Hoang Vu, Magnolia, TX US
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20120026002 | System and Method for Remote Well Monitoring - A system for remote monitoring of a wellsite operation comprises a sensor disposed at a wellsite to measure a parameter of interest. An information handling system in data communication with the sensor acts according to programmed instructions to generate a predetermined screenshot related to the parameter of interest. A radio frequency transceiver is in data communication with the information handling system to transmit the predetermined screenshot. A personal mobile device comprises a radio frequency transceiver and a display wherein the personal mobile device receives and displays the transmitted predetermined screenshot on the personal mobile device display. | 02-02-2012 |
20130076525 | SYSTEM AND METHOD FOR REMOTE WELL MONITORING - Systems and methods for remote monitoring of a wellsite operation may include receiving login information from a user and displaying a wellsite listing. The user may select at least one wellsite and may provide input regarding at least one parameter of interest for the at least one wellsite. A server may receive data regarding the at least one wellsite via a transceiver from a sensor disposed at a wellsite measuring the at least one parameter of interest. The data regarding the at least one parameter of interest may be transmitted as a dashboard after creation and rendering of teh dashboard at a server. The dashboard may be displayed via a wellsite information display module on a personal mobile device. The display of the at least one parameter of interest is customizable by the user or administrator of the system. | 03-28-2013 |
Hai Vu, Richardson, TX US
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20090257414 | Heterogeneous MAC protocol for multiple base stations in wireless networks - This disclosure describes a new Medium Access Control (MAC) protocol that combines contention-free and contention-based MAC protocols into a heterogeneous MAC protocol used for forwarding VoIP traffic in VoIP systems on wireless networks using multiple base stations which addresses the need to transport high bit-rate data to multiple users over wired and wireless means. | 10-15-2009 |
20090257415 | Heterogeneous MAC protocol for multiple base stations in wireless networks - This disclosure describes a new interference avoidance Medium Access Control (MAC) protocol that combines contention-free and contention-based MAC protocols into a heterogeneous MAC protocol used for forwarding VoIP traffic in VoIP systems on wireless networks using multiple base stations which addresses additional interference elimination and the need to transport high bit-rate data to multiple users over wired and wireless means. | 10-15-2009 |
20110003604 | Dynamic pattern elimination based compression method for text-based signaling protocols - This disclosure describes a dynamic pattern elimination compression method to eliminate redundant patterns, the content of which is not known a priori, by identifying the candidate dynamic patterns and marking them, then checking to see if there are any duplicate occurrences within the entire message by searching for markers, if a marker is found, checking to see if the pattern occurred before, if not, assigning a unique variable to the pattern, if so replacing the pattern with the variable that was assigned for this pattern, and if a pattern is found only once, removing the variable assigned to it. | 01-06-2011 |
Hieu Dinh Vu, Sugar Land, TX US
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20140077073 | SCINTILLATION DETECTOR GAIN CONTROL - A method, apparatus, and computer program products for controlling gain in a scintillation detector. Calibration count rates, each representing an integral count rate above a different threshold, are obtained from a photomultiplier tube. Photomultiplier tube gain is adjusted if a result from evaluating a relationship of calibration count rates varies from an expected result based on integral count rate versus threshold for a reference peak in the energy spectrum of the radiation source. An additional, different relationship may also be evaluated and an additional gain adjustment performed when a result indicates that the calibration count rates are not from the reference peak. A same radiation source may be used for collecting test counts and calibration counts. | 03-20-2014 |
Hoan Vu, Austin, TX US
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20130045803 | Cross-platform gaming between multiple devices of multiple types - Cross-platform gaming between multiple devices of multiple types, including: determining, by a cross-platform gaming server, the device type of a first gaming device; sending, in dependence upon the device type of the first gaming device, a gaming application from the cross-platform gaming server to the first gaming device; determining, by the cross-platform gaming server, the device type of the second gaming device; sending, in dependence upon the device type of the second gaming device, a gaming application from the cross-platform gaming server to the second gaming device; and communicating, in real-time, between the gaming application on the first gaming device and the gaming application on the second gaming device. | 02-21-2013 |
Mai Thi Thanh Vu, Plano, TX US
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20160063277 | METHOD, APPARATUS, AND MEDIA FOR CREATING SOCIAL MEDIA CHANNELS - A method, apparatus, and computer-readable media for creating a private social network (PSN). Channels in the PSN can be created based on connections in existing social networks and based on other interactions between the users. Channels can be dynamically managed based on various interactions and attributes. Channels of the PSN are defined by a data structure indicating the users and relationships therebetween. The data structure can be manipulated to change the attributes of the channels. A user interface can be provided to facilitate aggregation of existing channels. | 03-03-2016 |
Michael Vinh Vu, Austin, TX US
Mieu Vu, Austin, TX US
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20090287857 | Virtual Memory Direct Access (DMA) Channel Technique with Multiple Engines for DMA Controller - A virtual DMA channel technique in which a generally larger number of DMA channels are mapped to a generally smaller number of DMA engines can provide a configuration in which switches amongst DMA engines (and therefore amongst a current working set of DMA channels currently mapped thereto) can be accomplished without context switch latency. Accordingly, as long as contents of the current working set can be appropriately managed, many changes (whether or nor priority based) between a current active DMA channel and a next runnable DMA channel can be accomplished without incurring a context switch latency such as normally associated with loading/restoring and/or saving DMA context information. In some embodiments, a working set or replacement strategy that seeks to cache a most frequently (or most recently) used subset of virtual DMA channels is employed. In some embodiments, a set- or frame-oriented variants of such strategies may be employed. | 11-19-2009 |
Mieu V. Vu, Austin, TX US
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20100113003 | CELLULAR MODEM PROCESSING - A cellular mobile station including a modem processor and memory. The memory includes instructions for the modem processor to perform layer | 05-06-2010 |
20120183029 | CELLULAR MODEM PROCESSING - A cellular mobile station including a modem processor and memory. The memory includes instructions for the modem processor to perform layer | 07-19-2012 |
Mieu Van Vu, Austin, TX US
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20140105101 | Method and System for Low Power Transmission and Data Alignment - A method and apparatus automatically maintains a JESD204 serial data link ( | 04-17-2014 |
Mieu Van V. Vu, Austin, TX US
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20140023048 | Method and System for Phase Compensation in Multi-Path Communication Device - A method and apparatus for a radio base station ( | 01-23-2014 |
My-Phuong Thi Vu, Plano, TX US
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20130009877 | Method and Apparatus Pertaining to Dynamically Determining Entered Telephone Numbers - As keys of the keyboard of a portable communication device are asserted, the device dynamically determines at least a portion of a corresponding telephone number to present on the device's display by, at least in part, considering likelihoods of differing explicit and implicit interpretations of these key assertions. By one approach this can comprise according a likelihood advantage to an explicit interpretation of one or more of the key assertions and/or implicit interpretations of such key assertions. These likelihood advantages need not be necessarily dispositive with respect to the resultant interpretation. | 01-10-2013 |
20140306896 | Method and Apparatus Pertaining to Dynamically Determining Entered Telephone Numbers - As keys of the keyboard of a portable communication device are asserted, the device dynamically determines at least a portion of a corresponding telephone number to present on the device's display by, at least in part, considering likelihoods of differing explicit and implicit interpretations of these key assertions. By one approach this can comprise according a likelihood advantage to an explicit interpretation of one or more of the key assertions and/or implicit interpretations of such key assertions. These likelihood advantages need not be necessarily dispositive with respect to the resultant interpretation. | 10-16-2014 |
My-Phuong Ti Vu, Plano, TX US
Patent application number | Description | Published |
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20130344920 | Method and Apparatus Pertaining to Dynamically Determining Entered Telephone Numbers - As keys of the keyboard of a portable communication device are asserted, the device dynamically determines at least a portion of a corresponding telephone number to present on the device's display by, at least in part, considering likelihoods of differing explicit and implicit interpretations of these key assertions. By one approach this can comprise according a likelihood advantage to an explicit interpretation of one or more of the key assertions and/or implicit interpretations of such key assertions. These likelihood advantages need not be necessarily dispositive with respect to the resultant interpretation. | 12-26-2013 |
Phong Vu, Houston, TX US
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20150101804 | Screen Communication Sleeve Assembly and Method - Fluid flow between screen-pipe annuli of pipe sections in a down-hole well structure is provided by a fluid communication sleeve assembly that may be installed where adjacent pipe sections are connected. A flow ring is provided at each pipe section end, each flow ring providing fluid communication from and to an annulus between a screen and a corresponding base pipe. The fluid communication sleeve assembly includes a screen shield spaced from the adjoining pipes and the pipe joint, the screen shield connected to a flow ring at each screen shield end, and a lock nut at each screen shield end, the lock nut retaining a screen shield end to a corresponding flow ring. A method for providing fluid flow between screen-pipe annuli of pipe is also provided. | 04-16-2015 |
20150238884 | Composite Filter Assembly and Method - Embodiments of a filter assembly for use in down-hole applications generally include a drain filter, an inner layer of filter media, an outer layer of filter media, and a cover filter. The inner filter media includes a woven filter media spiral wrapped around the drain filter, with adjoining edges abutting, and the outer filter media includes a woven filter media spiral wrapped around the inner filter media, with adjoining edges abutting. Abutting edges of the second filter media are offset from the first filter media abutting edges. Embodiments of a method of constructing a filter assembly for use in down-hole applications generally include providing a drain filter by a wire wrap process, wrapping an inner filter media around the drain filter, wrapping an outer filter media around the inner filter media layer, and providing a cover filter by a wire wrap process, wherein abutting filter media layer edges are offset. | 08-27-2015 |
20150240572 | Shunt Tube Connector Assembly and Method - Embodiments of a shunt tube connector assembly generally include a jumper tube assembly and a cooperative shroud assembly. In one embodiment, the jumper tube assembly includes a jumper tube having two tube connectors slideable thereon, where the tube connectors are fluidly connectable to shunt tubes. In one embodiment, the shroud assembly includes shroud segments, and corresponding shroud connection collars that include openings for shunt tubes and a transverse dove tail in the surface thereof, where shroud segments have a dove pin extending inwardly therefrom and adapted to engage a collar dove tail. Embodiments of a method for connecting and shrouding connectable pipe segments equipped with exterior shunt tubes generally include providing fluidly connected pipe segments having collars comprising an exterior surface opened dove tail, fluidly connecting shunt tubes, and attaching shroud segments around at least a portion of each said pipe segment by engaging a dove pin with the dovetail. | 08-27-2015 |
Phuong Vu, Houston, TX US
Patent application number | Description | Published |
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20090048784 | 3D SURFACE RELATED MULTIPLE ELIMINATION FOR WIDE AZIMUTH SEISMIC DATA - According to a preferred aspect of the instant invention, there is provided herein a system and method for the imaging and monitoring of the subsurface hydrocarbon reservoirs and other subsurface features, wherein the collected seismic data contain multiples therein. In brief, the instant invention is a method of removing multiples using SRME, wherein wide azimuth seismic data are used to directly compute a multiple prediction via a mixed space-wavenumber-frequency domain implementation. | 02-19-2009 |
Quoc-Bao Vu, Allen, TX US
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20100009492 | METHOD FOR PRODUCTION OF THIN SEMICONDUCTOR SOLAR CELLS AND INTEGRATED CIRCUITS - The invention relates to the formation of thin-film crystalline silicon using a zone-melting recrystallization process in which the substrate is a ceramic material. Integrated circuits and solar cells are fabricated in the recrystallized silicon thin film and lifted off the substrate. Following lift-off, these circuits and devices are self-sustained, lightweight and flexible and the released ceramic substrate can be reused making the device fabrication process cost effective. | 01-14-2010 |
Robert Bao Vu, Houston, TX US
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20130017303 | APPARATUS AND PRODUCTS FOR PRODUCING BEVERAGES, AND METHODS FOR MAKING AND USING SAMEAANM VU; ROBERT BAOAACI HoustonAAST TXAACO USAAGP VU; ROBERT BAO Houston TX US - A brewing container for use with brewing machines, the container including a distribution outlet for dispersing the injected water in at least 3 directions away from vertical within the cartridge. | 01-17-2013 |
20140245893 | METHODS, APPARATUS AND PRODUCTS FOR GRINDING BREWABLE MATERIALS INTO A FILTER CARTRIDGE - Grinding methods and systems for filling single serve filter cups. A slideably removable cartridge securely holds a single serve filter cup in place to allow the grinder discharge to fill the single serve filter cup. Conversions of grinders to allow filling of single serve filter cups is provided by interchanging the usual grinder discharge bin with the removable cartridge filter holder. | 09-04-2014 |
Steve Vu, Austin, TX US
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20140314124 | CIRCUITS AND METHODS FOR DETERMINING THE TEMPERATURE OF A TRANSISTOR - Methods and circuits for measuring the temperature of a transistor are disclosed. An embodiment of the method includes, providing a current into a circuit, wherein the circuit is connected to the transistor. A variable resistance is connected between the base and collector of the transistor. The circuit has a first mode and a second mode, wherein the current in the first mode flows into the base of the transistor and through the resistance and the current in the second mode flows into the emitter of the transistor. Voltages in both the first mode and the second mode are measured using different resistance settings. The temperature of the transistor is calculated based on the difference between the different voltages. | 10-23-2014 |
Steven Vu, Houston, TX US
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20150302443 | LIMITED-CIRCLE SOCIAL MEDIA REWARDS - A social media application allows a person to make a limited number of referrals to an entity. The entity keeps track of whether the referred people patronize the entity and awards credits to the person making the referral when a referred person patronizes the entity. Upon receiving a threshold credit value, the entity may reward the person making referrals. | 10-22-2015 |
Thomas M. Vu, Houston, TX US
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20100307052 | INTEGRATED BIOFUEL PROCESS - The instant invention pertains to new processes which produce an energy source effectively, efficiently, and in a more environmentally friendly manner. The process comprises hydrolyzing a lignocellulosic feedstock to form lignocellulosic hydrolyzate and a hydrolyzate residue. The lignocellulosic hydrolyzate is treated to produce hydrogen. The hydrolyzate residue may be reacted with hydrogen in the presence of a catalyst to yield the energy source. | 12-09-2010 |
Tommy Duc Vu, Houston, TX US
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20130025937 | Systems and Methods for Continuous and Near Continuous Drilling - The present disclosure provides drilling and tripping equipment packages and control schemes and methods using two or more lifting systems that operate simultaneously and continuously in a synchronized manner such that the feeding of tubular into or out of a well bore is achieved with continuous or near continuous movement, without the need for periodic interruptions. The drilling and tripping equipment packages and control schemes are also able to rotate the tubular in the well bore with continuous speed and torque sufficient for both drilling and back-reaming operations. The drilling and tripping equipment package and control scheme is additionally able to circulate drilling fluid into the internal bore of the tubular with sufficient pressure and flow to facilitate both drilling and back-reaming operations, with minimal interruption to circulation. | 01-31-2013 |
Tony Vu, Houston, TX US
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20160041234 | CALIBRATION OF SENSITIVITY AND AXIAL ORTHOGONALITY FOR MAGNETOMETERS - A reduced-cost apparatus for calibrating the sensitivity and orthogonality of a triaxial magnetometer, and a method for adjusting the distance between the two coils of a Helmholtz coil and other related parameters are described herein. A method can include positioning a calibrated magnetometer within a mounting fixture between two coils of a Helmholtz coil, the two coils arranged in mutually parallel planes and separated by the radius of the Helmholtz coil, the mounting fixture mounted such that a position of the mounting fixture is adjustable along an axis orthogonal to the mutually parallel planes; adjusting the position of the mounting fixture over at least some of the positions and measuring the magnetic field at each position to generate a set of magnetic field measurements associated with the positions; and adjusting the first distance based on the first set of magnetic field measurements. Additional apparatuses, systems, and methods are disclosed. | 02-11-2016 |
Truc Vu, Houston, TX US
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20140275630 | Methods And Systems For Separating Acetone And Phenol From One Another - Systems and methods for improving crude acetone column energy efficiency and operation are provided. The method for improving crude acetone column energy efficiency and operation can include introducing a crude acetone including acetone and phenol to a fractionation column and introducing cumene, AMS, or a combination thereof to the fractionation column. The method can include fractionating the crude acetone within the fractionation column to produce an acetone containing overhead and a phenol containing bottoms. The method can also include condensing at least a portion of the acetone containing overhead indirectly with a cool heat transfer medium to provide a condensed crude acetone product and a heated heat transfer medium, wherein the heat transfer medium includes cumene. | 09-18-2014 |
Van Vu, Houston, TX US
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20150086275 | METHODS AND APPARATUS FOR CONVERTING AN OFFSHORE STRUCTURE - An offshore support system comprises an offshore structure having a platform supported by one or more legs. The system further comprises a mat structure having a mat, and a clamp configured engage at least one leg of the offshore structure. The clamp is movable into and out of engagement with the leg to connect and release the mat to and from the offshore structure. | 03-26-2015 |