Communications, electrical: acoustic wave systems and devices inventions 02/07

20070041271 - Method for treating seismic data corresponding to acquisitions obtained for a common zone by means of underwater seismic receivers and by means of surface receivers: Method for processing seismic data sets corresponding to the same zone, some of which are acquired by means of receivers at the ocean bottom, while others are acquired by means of surface receivers, characterised in that at least one seismic data set that is an estimation of the component common... Agent: Adams And Reese LLP

20070041272 - Control system for positioning of marine seismic streamers: A method of controlling a streamer positioning device (18) configured to be attached to a marine seismic streamer (12) and towed by seismic survey vessel (10) and having a wing and a wing motor for changing the orientation of the wing. The method includes the steps of: obtaining an estimated... Agent: Westerngeco L.L.C.

20070041274 - Acoustic sensor: Disclosed are devices, systems, and methods for capturing acoustic data in an efficient manner. Some embodiments have piezoelectric sensing portions with polarization axes and conducting layers. In some embodiments, piezoelectric sensing portions can be positioned generally coplanar to each other and in partial electrical contact. In some embodiments, polarization axes... Agent: Knobbe Martens Olson & Bear LLP

20070041273 - Acoustic sensor: Disclosed are devices, systems, and methods for capturing acoustic data in an efficient manner. Some embodiments have piezoelectric sensing portions with polarization axes and conducting layers. In some embodiments, piezoelectric sensing portions can be positioned generally coplanar to each other and in partial electrical contact. In some embodiments, polarization axes... Agent: Knobbe Martens Olson & Bear LLP

20070036030 - Method of accounting for wavelet stretch in seismic data: A computer-implemented method of accounting for angle-dependent wavelet stretch in seismic data based on a novel relationship between wavelet stretch and the cosine of a reflection angle of an acoustic ray. Conventional seismic data having at least one wavelet, such as data generated from a reflection seismic survey, is accessed.... Agent: Conocophilips Company - I.p. Legal

20070036031 - Sensor and recorder communication: Implementations of various technologies for a method for establishing communication pathway redundancy within a seismic recording array. In one implementation, the method may include identifying each data acquisition cell deployed in a seismic field and determining one or more communication pathways for each data acquisition cell. The communication pathways include... Agent: Jeffrey E. Griffin Westerngeco, L.L.C.

20070036032 - Acoustic generator for distance sounding with a new and novel portal structure for the efficient firing of the pressure chamber: In the oil industry, the acoustic sounding method is a well-known technique for taking the depth measurements of particular attributes of an oil well or borehole. The method involves sending a short, sharp, clear, loud bang sound down a borehole, normally between the inside wall of the borehole casing, commonly... Agent: Mark David Fox, Esq.

20070036033 - Flexible hydrophone: A hydrophone includes a body formed of a flexible, plastic material. The body includes a plurality of channels and each channel may have one or more wells. The wells are adapted to receive an active element which includes mounting hardware. The mounting hardware includes a soft, rubber grommet or other... Agent: Tim Cook

20070030760 - Method and apparatus for attenuation wind noise in seismic data: A method and apparatus for use in seismic prospecting are disclosed. The method includes: attenuating coherent noise in a seismic data set generated from a sweep signal; and correlating the coherent noise-attenuated seismic data set to the sweep signal. The apparatus includes a program storage medium encoded with instructions that,... Agent: Westerngeco L.L.C.

20070030761 - Method for characterizing shear wave formation anisotropy: A method of characterizing shear wave anisotropy in a formation includes obtaining crossed-dipole waveforms from a borehole penetrating the formation over a range of depths and frequencies, determining far-field slowness in a fast-shear and slow-shear direction using a low-frequency portion of the crossed-dipole waveforms, and determining near-wellbore slowness in the... Agent: Schlumberger Oilfield Services

20070030762 - Borehole telemetry system: An acoustic telemetry apparatus and method for communicating encoded digital data from a down-hole location through a borehole to the surface is described including an acoustic channel terminated at a down-hole end by a reflecting terminal (133, 134), an acoustic wave generator (140) located at the surface and providing an... Agent: Schlumberger-doll Research Attn: Intellectual Property Law Department

20070030763 - System and method for disambiguating shooter locations: Systems and methods for locating the shooter of supersonic projectiles based on shockwave-only measurements are described. Muzzle blast signals are neither sought nor required. The system uses at least five, preferably seven, acoustic sensors that are spaced apart at least 1 meter. The sensor signals are acquired with a time... Agent: Fish & NeaveIPGroup Ropes & Gray LLP

20070025182 - Methods and apparatus for acquisition of marine seismic data: Methods and apparatus for acquiring marine seismic data are described. One method comprises selecting tow depth of one or more marine seismic streamers based at least in part on lack of or presence of currents at different depths, and allowing the current to contribute to steering the streamers to desired... Agent: Westerngeco L.L.C.

20070025183 - 3-d forward looking sonar with fixed frame of reference for navigation: An imaging sonar system develops three-dimensional images of the space below, to the sides, and forward of a ship relative to a fixed frame of reference. Various features permit the system to be used in non-military environments and make possible low cost with substantial capabilities.... Agent: Matthew J. Zimmerman Farsounder, Inc.

20070025184 - Method and apparatus for correlation sonar: A correlation SONAR that provides improved velocity estimates due to a reduction in random and bias errors is disclosed. Rather than basing the velocity estimate on a single set of primary receiver pairs, one or more additional velocity estimates are generated based on one or more available receiver pair sets... Agent: Demont & Breyer, LLC

20070025185 - Underwater geopositioning methods and apparatus: A method and apparatus for determining the geophysical position of an autonomous underwater system utilizing underwater acoustic modems that exchange broadband underwater acoustic signals. The method of the invention includes the steps of initiating an exchange of broadband acoustic signals between the autonomous system of unknown geophysical position and a... Agent: Francis J. Caufield