Featured patents

Acoustic Transducer With a Backing Containing Unidirectional Fibers and Methods of Making and Using Same
US 08792307 B2, July 29, 2014, With resonant or damping structure, Rocco DiFoggio / Baker Hughes Incorporated (Houston, US)
An apparatus comprising:…

Ultrasound Detectors
US 08792305 B2, July 29, 2014, Receiver Circuitry, Wilfred Edwin Booij et al. / Sonitor Technologies AS (Oslo, NO)
A method of receiving data coded on an ultrasonic signal comprising:…

Removing Noise From a Seismic Measurement
US 08773949 B2, July 8, 2014, Signal analysis and / or correction, Ahmet Kemal Ozdemir et al. / WesternGeco L.L.C. (Houston, US)
A method comprising:…

Multi-Range Object Location Estimation
US 08681585 B2, March 25, 2014, Distance or direction finding, Tobias Dahl et al. / Elliptic Laboratories AS (Oslo, NO)
A method of estimating the impulse response of a channel comprising:…

Apparatus and System for Acquiring Seismic Data Over a Loose Surface
US 08699301 B2, April 15, 2014, Towed land cables, Hashim Sari Almalki et al. / King Abdulaziz City for Science and Technology (Riyadh, SA)
An apparatus for acquiring seismic data over a loose surface, the apparatus…

Method for Optimizing Acoustic Source Array Performance
US 08582396 B2, Nov. 12, 2013, Controlled source signalling, Robert Laws et al. / WesternGeco L.L.C. (Houston, US)
A method, comprising:…

Reducing Noise in Seismic Surveying Environment
US 08588030 B2, Nov. 19, 2013, With feedback control, Colin Readman et al. / WesternGeco L.L.C. (Houston, US)
A method comprising:…

System for Measuring Stress in Downhole Tubulars
US 08553494 B2, Oct. 8, 2013, Borehole or casing condition, Joseph Gregory Barolak / Baker Hughes Incorporated (Houston, US)
An apparatus for determining an azimuthal stress variation in a tubular within…

Sensor Assembly Having a Seismic Sensor, Pressure Sensor, and Processor to Apply First and Second Digital Filters
US 08520469 B2, Aug. 27, 2013, Filters, Qinglin Liu et al. / WesternGeco L.L.C. (Houston, US)
A sensor assembly comprising:…

Methods and Apparatus to Combine Monopole and Multipole Acoustic Logging Measurements to Determine Shear Slowness
US 08451688 B2, May 28, 2013, Shear wave, Shinji Yoneshima / Schlumberger Technology Corporation (Sugar Land, US)
A method to determine shear slowness of a formation from acoustic logging data,…

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