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Class Information
Number: 181/101
Name: Acoustics > Geophysical or subsurface exploration
Description: Subject matter relating to systems for mechanically transmitting or receiving acoustical waves for the purpose of identifying geologic or subsurface structure.










Sub-classes under this class:

Class Number Class Name Patents
181/107 Programmed or timer-controlled 38
181/108 Seismic source and detector 109
181/122 Seismic wave detection 151
181/113 Seismic wave generation 177
181/102 Well logging 263


Patents under this class:
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Patent Number Title Of Patent Date Issued
8407008 For in-field control module for managing wireless seismic data acquisition systems and related methods Mar. 26, 2013
8340912 Seismic attributes for structural analysis Dec. 25, 2012
8316713 Scanning near field ultrasound holography Nov. 27, 2012
8310756 Window image projection screen Nov. 13, 2012
8302730 System and method for generating and controlling conducted acoustic waves for geophysical exploration Nov. 6, 2012
8292022 System and method for generating and controlling conducted acoustic waves for geophysical exploration Oct. 23, 2012
8107317 Technique and system for performing a cross well survey Jan. 31, 2012
7944774 Method for determining adequacy of seismic data coverage of a subsurface area being surveyed and its application to selecting sensor array geometry May. 17, 2011
7841444 Seismic vibrator baseplate Nov. 30, 2010
7841982 Apparatus and method for imaging objects with wavefields Nov. 30, 2010
7823689 Closed-loop downhole resonant source Nov. 2, 2010
7798001 Scanning near field ultrasound holography Sep. 21, 2010
7797110 Method for velocity analysis using waveform inversion in Laplace domain for geophysical imaging Sep. 14, 2010
7736314 Ultrasonic technique for assessing wall vibrations in stenosed blood vessels Jun. 15, 2010
7684846 Apparatus and method for imaging objects with wavefields Mar. 23, 2010
7584056 Multiple suppression in angle domain time and depth migration Sep. 1, 2009
7539279 Logarithmic spectrum transmitter waveform for controlled-source electromagnetic surveying May. 26, 2009
7448269 Scanning near field ultrasound holography Nov. 11, 2008
7426439 Method and apparatus for marine seismic data acquisition Sep. 16, 2008
7395897 Accelerated weight drop configurable for use as a shear wave seismic energy source and a method of operation thereof Jul. 8, 2008
7284636 Accelerated weight drop for use as a seismic energy source and a method of operation thereof Oct. 23, 2007
7216738 Acoustic stimulation method with axial driver actuating moment arms on tines May. 15, 2007
7213681 Acoustic stimulation tool with axial driver actuating moment arms on tines May. 8, 2007
6915875 Acoustic isolator for downhole applications Jul. 12, 2005
6837332 Method and apparatus for cancellation of unwanted signals in MWD acoustic tools Jan. 4, 2005
6782970 Acoustic source using a shaftless electrical hammer Aug. 31, 2004
6619423 Measuring device for measuring the elastic properties of a surface structure Sep. 16, 2003
6418081 System for detection of buried objects Jul. 9, 2002
6209640 Method of obtaining improved geophysical information about earth formations Apr. 3, 2001
6089345 Elastic wave exploration tool for wells Jul. 18, 2000
6076629 Low frequency flextensional acoustic source for underwater use Jun. 20, 2000
6076630 Acoustic energy system for marine operations Jun. 20, 2000
6065562 System for imparting compressional and shear waves into the earth May. 23, 2000
6065538 Method of obtaining improved geophysical information about earth formations May. 23, 2000
6041888 Low frequency flextensional acoustic source for underwater use Mar. 28, 2000
5954517 Interactive sand box for training Sep. 21, 1999
5811741 Apparatus for placing geophones beneath the surface of the earth Sep. 22, 1998
5646379 Attentuator for borehole acoustic waves Jul. 8, 1997
5551881 Method and system for geophysical and geologic modeling Sep. 3, 1996
5432305 Penetrometer acoustic soil sensor Jul. 11, 1995
5408441 Method for seismic exploration in artic regions Apr. 18, 1995
5373486 Seismic event classification system Dec. 13, 1994
H1307 Method for continuity logging May. 3, 1994
5170018 Method and apparatus for tube-wave suppression Dec. 8, 1992
5131477 Method and apparatus for preventing drilling of a new well into an existing well Jul. 21, 1992
5005665 Piezoelectric seismic vibration device and method Apr. 9, 1991
4982381 Method and device for acquiring and processing signals obtained in wells and particularly in horizontal wells Jan. 1, 1991
4850449 Piezoelectric seismic vibration device and method Jul. 25, 1989
4833658 Method of seismic prospecting with very high resolution in horizontal boreholes May. 23, 1989
4649524 Integrated acoustic network Mar. 10, 1987

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