Communications, electrical: acoustic wave systems and devices inventions 06/08

20080151688 - Removing noise from seismic data obtained from towed seismic sensors: A technique includes obtaining different sets of data, which are provided by seismic sensors that share a tow line in common. Each data set is associated with a different spatial sampling interval. The technique includes processing the different sets of data to generate a signal that is indicative of a... Agent: Westerngeco L.l.c. Jeffrey E. Griffin

20080151689 - Removing vibration noise from seismic data obtained from towed seismic sensors: A technique includes obtaining different sets of data, which are provided by seismic sensors that share a tow line in common. Each data set is associated with a different spatial sampling interval. The technique includes processing the different sets of data to generate a signal that is indicative of a... Agent: Westerngeco L.l.c. Jeffrey E. Griffin

20080151690 - Imaging near-borehole reflectors using shear wave reflections from a multi-component acoustic tool: Shear wave reflection data obtained by a cross dipole tool are rotated to a fixed coordinate system and migrated to produce an image of an earth formation.... Agent: Madan, Mossman & Sriram, P.c.

20080151691 - Method of monitoring microseismic events: A microseismic method of monitoring fracturing operation or other passive seismic events in hydrocarbon wells is described using the steps of obtaining multi-component s-wave signals of the event; and using a linear derivative of S-wave arrival times of the signals in a first direction, an S-wave velocity and an s-wave... Agent: Schlumberger-doll Research Attn: Intellectual Property Law Department

20080151692 - Low cost acoustic responder location system: A location system including a base station (120, 200) and a responder tag (140, 250) that communicate using an acoustic signal to determine the location of the tag in a bounded 3D space (100). The base station transmits a request signal (310) encoded with the identifier of a particular tag.... Agent: Philips Intellectual Property & Standards

20080151693 - Method for simultaneous transmission of soundwaves and, in particular, sonar pulses, without interference: A system and method simultaneously transmits sound waves through a plurality of sonar elements without interference, such as for the purpose of tracking objects underwater. The system has a pulse generator with a plurality of transceivers connected to the pulse generator. A plurality of sonar elements is connected to the... Agent: Standley Law Group LLP

20080151694 - Passive long range acoustic sensor: This Passive Long Range Acoustical Sensor relates to means of sensing acoustical sources and signals, including multi-channel acoustical signals, such as various types of sounds, vibrations, flutter, turbulence, and the like, and at long distances through a natural optical channel, without the use of a laser or other artificial illuminating... Agent: Robert Schlesinger

20080144434 - Seismic streamers which attentuate longitudinally traveling waves: A seismic streamer includes at least one array of sensors each disposed in a sensor holder at longitudinally spaced apart locations. A longitudinal orientation of at least one sensor or at least one sensor holder is different from that of the other sensors along the length of the array.... Agent: E. Eugene Thigpen Petroleum Geo-services, Inc.

20080144435 - Deep low frequency towed-array marine survey: A method includes: acquiring a set of multicomponent seismic data in a towed-array, marine seismic survey at a low seismic frequency and at a deep tow depth; and processing the acquired seismic data to attenuate the affect of reverberations in the water column thereon. A method for processing seismic data... Agent: Westerngeco L.l.c. Jeffrey E. Griffin

20080144436 - Time-lapse seismic acquisition: Methods for generating a time lapse difference image. In one implementation, the method includes estimating a trace in a first seismic survey data set at each trace coordinate of a second seismic survey data set, estimating a trace in the second seismic survey data set at each trace coordinate of... Agent: Jeffrey E. Griffin Westerngeco, L.l.c.

20080144437 - Computing an absorption parameter for a mode-converted seismic wave: To survey a subterranean structure, measured seismic data is processed using an algorithm for deriving a single-mode absorption parameter. A first absorption parameter for a mode-converted seismic wave is computed based on an output of the algorithm. The first absorption parameter represents an absorption effect of the mode-converted seismic wave... Agent: Westerngeco L.l.c. Jeffrey E. Griffin

20080144438 - Determining acceptability of sensor locations used to perform a seismic survey: Method for determining acceptability of sensor locations used to perform a seismic survey. In one implementation, the method includes obtaining a first set of reference data, generating a first output trace from a second set of reference data estimated from the first set of reference data at a plurality of... Agent: Westerngeco L.l.c. Jeffrey E. Griffin

20080144439 - Slowness-frequency projection display and animation: Techniques for displaying sonic logging data that provide highly reliable, visual quality-control (QC) indicators. One aspect herein is directed to a display of sonic logging data corresponding to a slowness frequency analysis (SFA) projection log.... Agent: Schlumberger K.k.

20080144440 - Method for all ocean-terrain ships covert velocity reference: Methods for mitigating errors in velocity estimates obtained from correlation SONARs when the SONARs are operated over irregular ocean-bottom terrain are disclosed.... Agent: Demont & Breyer, Llc

20080144441 - Sonar device: A sonar device for determining the locations of all sound-reflective objects in all directions within a desired range in a body of water comprises a transmitting transducer and at least three receiving transducers. During operation of the sonar device, the transmitting transducer generates a single omnidirectional pulse which is reflected... Agent: Henry C. Query, Jr.

20080144442 - Apparatus, systems and methods for seabed data acquisition: Seabed sensor units, systems including same, and methods for acquiring seabed data are described, one seabed sensor unit comprising a base, the base containing at least one sensor able to detect a seismic signal, electronics comprising a clock and one or more electronic components enabling the sensor to communicate seismic... Agent: Westerngeco L.l.c. Jeffrey E. Griffin

20080137474 - Apparatus and method for clock shift correction for measurement-while-drilling measurements: The disclosure provides a method which includes transmitting signals over a time period between a downhole location and a surface location during drilling of a wellbore; recording the time of each signal at the surface using a surface clock and the time of each signal downhole using a downhole clock;... Agent: Madan, Mossman & Sriram, P.c.

20080137475 - System, method and computer program product for detection of seismic events from a network: Disclosed is a system for detecting seismic events, the system including a plurality of seismic receivers, at least one of the receivers in the plurality adapted for: monitoring seismic activity, providing an alert to at least another of the receivers in the plurality upon detection of a seismic event, and... Agent: Cantor Colburn LLP- Baker Atlas

20080137476 - Dynamic source parameter selection for seismic vibrator data acquisition: A method and system of operating single vibrator source points for seismic data acquisition includes acquiring real-time field survey locations for a first plurality of seismic vibrators, determining at least one geometrical relationship between each of the first plurality of seismic vibrators as a function of the field survey locations,... Agent: Conocophillips Company - I.p. Legal

20080137477 - Method for computing an exact impulse response of a plane acoustic reflector at zero offset due to a point acoustic source: Originating from a novel and an exact algebraic formula for the impulse response of a plane acoustic reflector at zero offset due to a point acoustic source the present invention provides a method for computing an exact impulse response of a plane acoustic reflector at zero offset due to a... Agent: Dla Piper Us LLP

20080137478 - Method for multi-azimuth prestack time migration for general heterogeneous, anisotropic media: Three data subsets are obtained in three selected azimuthal directions from seismic data in heterogeneous, anisotropic media. Azimuthal velocities are determined for each of the data subsets. A linear system of equations in the three selected azimuthal directions and the three determined azimuthal velocities is solved for three independent parameters.... Agent: E. Eugene Thigpen Petroleum Geo-services, Inc.

20080137479 - Method for interpreting seismic data using a digitizing display tablet: A method for interpreting seismic data includes displaying seismic data on a graphic digitizing tablet. At least one data point is entered into a seismic data interpretation program by contacting a write end of a digitizing stylus to the digitizing tablet at a user-selected position within the displayed seismic data.... Agent: E. Eugene Thigpen Petroleum Geo-services, Inc.

20080137480 - Method of building a subsurface velocity model: A method is provided for building a subsurface velocity model from a plurality of bins of marine acquired seismic traces of the subsurface.... Agent: Edell, Shapiro & Finnan, Llc

20080137481 - Receiver for an acoustic telemetry system: One embodiment includes a method comprising receiving an acoustic signal that is propagated along a drill string. The method also includes correlating the acoustic signal to a first stored acoustic signal representing a first symbol, wherein the first stored acoustic signal is acquired from a propagation along the drill string... Agent: Schwegman, Lundberg, Woessner & Kluth, P.a.

20080137483 - Multibeam, multifrequency sonar method and apparatus: The present invention relates to a sonar method and apparatus of tracking objects underwater. Specifically, the method and apparatus can be used to acoustically track a multitude of objects in a hemispherical volume 360° azimuth and 180° elevation relative to the location of the apparatus. The method and apparatus of... Agent: Standley Law Group LLP

20080137482 - Time multiplexed method and device for beamforming: The present invention relates to a digital beamformer in ultrasound imaging after the process of receiving a digital echo signal. Provided herein is a time multiplexed device and method for beamforming. The device includes an echo data write/read unit, a multi-beam processing unit, a channel data summing unit, and a... Agent: Mindray C/o Stoel Rives LLP

20080137485 - Method and apparatus for seismic data acquisition: A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are tethered together with flexible, non-rigid, non-conducting cable used to control pod deployment. Pods... Agent: Houston Ip Department Jackson Walker L.l.p.

20080137484 - Seismic sensor housing, seismic sensor, and seismic acquisition system made therewith: A seismic sensor includes a housing having a device for releasably affixing the housing to the Earth. A seismic sensing element is disposed within the housing. A wireless signal communication device is associated with the housing and is in signal communication with the seismic sensing element. The communication device is... Agent: E. Eugene Thigpen Petroleum Geo-services, Inc.

20080130407 - Fracture clusters identification: Method for identifying one or more fracture clusters in a formation surrounding a reservoir. In one implementation, the method may include generating a P to S image, comparing the P to S image to one or more images from a borehole, and identifying one or more fracture clusters using the... Agent: Jeffrey E. Griffin Westerngeco, L.l.c.

20080130408 - Headtracking system: System and method for tracking of a head comprising generating and radiating at least one acoustical test signal; receiving the radiated acoustical test signal(s) at two locations at the head under investigation and generating electrical measurement signals therefrom; and evaluating the two measurement signals for determining the position and/or angle... Agent: O'shea, Getz & Kosakowski, P.c.

20080130409 - Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications: The present invention provides a method and apparatus for using an acoustic logging tool conveyed in a borehole in an earth formation for determining a characteristic of the formation. The method comprises using a first acoustic source for generating an acoustic signal in the earth formation at a first frequency.... Agent: Madan, Mossman & Sriram, P.c.

20080130410 - Attenuating unwanted signal using interferometry techniques: A method to attenuate unwanted signals in seismic data using seismic interferometry techniques. In one implementation, seismograms may be converted into seismic interferograms. In the seismic interferogram domain, unwanted signals may be attenuated by various techniques, such as muting, filtering and the like. The modified seismic interferograms may then be... Agent: Westerngeco L.l.c.

20080130411 - Seismic imaging with natural green's functions derived from vsp data: The methods described herein are conceptually similar to classical migration/imaging for surface seismic data. However, instead of using computed (estimated) Green's functions in the imaging process, the instant invention utilizes measured (near-exact) Green's functions from VSP data to image the surface seismic data. Although the instant invention is best utilized... Agent: Fellers Snider Blankenship Bailey & Tippens

20080130412 - Method and apparatus for acoustic data transmission in a subterranean well: The disclosure describes a method and apparatus for effectively communicating data along an acoustic transmission path. The method comprises driving an acoustic transmitter to send a data signal along the acoustic transmission path, where the signal is distorted by ambient noise. The distorted signal is input to a spaced apart... Agent: Peter Schroeder Crutsinger & Booth

20080130413 - Systems and methods implementing frequency-steered acoustic arrays for 2d and 3d imaging: Frequency-steered acoustic arrays transmitting and/or receiving multiple, angularly dispersed acoustic beams are used to generate 2D and 3D images. Input pulses to the arrays are generally non-linear, frequency-modulated pulses. Frequency-steered acoustic arrays may be provided in one-dimensional linear and two dimensional planar and curvilinear configurations, may be operated as single... Agent: Speckman Law Group Pllc

20080130414 - System and method for improving the efficiency of an acoustic sensor: The present invention provides a system for identifying and locating an acoustic event. In a preferred embodiment a gunshot detection sensor includes an audio sensor which detects gunshots in combination with a GPS engine which provides location and timing in conjunction with a host system. This allows an acoustic sensing... Agent: Lumen Patent Firm, Inc.

20080130415 - Compound flexible circuit and method for electrically connecting a transducer array: A compound flexible circuit for electrically connecting a transducer array and a cable includes a first end configured to be coupled to the transducer array and a plurality of sections. Each section has a pitch and at least one of the plurality of sections has a variable pitch. The compound... Agent: Peter Vogel Ge Healthcare

20080130416 - Diaphragm cup for an ultrasonic transducer: Provided is a diaphragm cup for an ultrasonic transducer having a hollow area for carrying a diaphragm, which is electroplated, preferably with a chrome coating.... Agent: Kenyon & Kenyon LLP