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Class Information
Number: 367/28
Name: Communications, electrical: acoustic wave systems and devices > Seismic prospecting > Well logging > Amplitude measurement
Description: Subject matter wherein the detected acoustic wave is converted to an electric signal whose amplitude is used to determine some characteristic of the acoustic medium (i.e., earth).

Sub-classes under this class:

Class Number Class Name Patents
367/30 Amplitude comparison 57
367/32 Frequency dependent determination 98
367/31 Of noncompressional acoustic wave energy 180
367/29 Peak amplitude 31

Patents under this class:

Patent Number Title Of Patent Date Issued
8639443 Microseismic event monitoring technical field Jan. 28, 2014
8522611 Method and apparatus for measuring pore pressure beyond the casing Sep. 3, 2013
8462584 Sonic borehole caliper and related methods Jun. 11, 2013
8107316 Controlled source imbalance apparatus, systems, and methods Jan. 31, 2012
7764571 Vector 3-component 3-dimensional Kirchhoff prestack migration Jul. 27, 2010
7660195 Attenuation mapping apparatus, systems, and methods Feb. 9, 2010
7542373 Vector 3-component 3-dimensional kirchhoff prestack migration Jun. 2, 2009
7423930 Methods and systems for detecting arrivals of interest Sep. 9, 2008
7035165 Imaging near-borehole structure using directional acoustic-wave measurement Apr. 25, 2006
6868038 Seismic method of performing the time picking step Mar. 15, 2005
6801473 Method for estimating and removing artifact noise from seismic data Oct. 5, 2004
6151275 Method of dual wavefield reinforcement Nov. 21, 2000
6125079 System and method for providing dual distance transducers to image behind an acoustically reflective layer Sep. 26, 2000
5995447 System and method for processing acoustic signals to image behind reflective layers Nov. 30, 1999
5798982 Method for inverting reflection trace data from 3-D and 4-D seismic surveys and identifying subsurface fluid and pathways in and among hydrocarbon reservoirs based on impedance models Aug. 25, 1998
5753812 Transducer for sonic logging-while-drilling May. 19, 1998
5654938 Method for identifying alteration of earth formations using dipole acoustic logging Aug. 5, 1997
5638337 Method for computing borehole geometry from ultrasonic pulse echo data Jun. 10, 1997
5587966 Sonic well logging methods and apparatus for processing flexural wave in optimal frequency band Dec. 24, 1996
5491668 Method for determining the thickness of a casing in a wellbore by signal processing pulse-echo data from an acoustic pulse-echo imaging tool Feb. 13, 1996
5197038 Method and sonic tool apparatus for investigating properties of earth formations transversed by a borehole Mar. 23, 1993
4962489 Acoustic borehole logging Oct. 9, 1990
4855965 Time ramped gain for borehole televiewer Aug. 8, 1989
4829486 Transmitting multiple borehole parameters in sonic logging May. 9, 1989
4817059 Borehole logging methods for detection and imaging of formation structural features Mar. 28, 1989
4809236 Method and apparatus for determining the magnitude of components of measurements made from inside a borehole Feb. 28, 1989
4805156 System for acoustically determining the quality of the cement bond in a cased borehole Feb. 14, 1989
4791618 Well logging method and system for detecting structural and stratigraphic geological make-up of subsurface formations Dec. 13, 1988
4736348 Method and apparatus for logging the characteristics of materials forming the walls of a borehole Apr. 5, 1988
4698793 Methods for processing sonic data Oct. 6, 1987
4698791 Acoustic well logging method for improved amplitude data acquisition Oct. 6, 1987
4672588 Method for displaying acoustic well logging data by producing travel time stacks Jun. 9, 1987
4641724 Fracture detection using circumferential offset acoustic paths Feb. 10, 1987
4551823 Method and apparatus for acoustic cement bond logging Nov. 5, 1985
4524433 High speed sonic logging using multiple transducers Jun. 18, 1985
4495606 Method and apparatus for combined cement bond and acoustic well logging Jan. 22, 1985
4449208 Lithologic studies utilizing acoustic wave attenuation May. 15, 1984
4419748 Continuous wave sonic logging Dec. 6, 1983
4414651 Integrated well logging system and method Nov. 8, 1983
4349896 Digital acoustic logging method and apparatus Sep. 14, 1982
4346460 Method and apparatus for deriving compensated measurements in a borehole Aug. 24, 1982
4172250 Acoustic well logging with threshold adjustment Oct. 23, 1979
4168483 System for detecting substructure microfractures and method therefor Sep. 18, 1979
4140994 Method and apparatus for acoustic well logging of earth boreholes Feb. 20, 1979
4027281 Digital recording of sonic log wavetrains May. 31, 1977

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