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Class Information
Number: 367/29
Name: Communications, electrical: acoustic wave systems and devices > Seismic prospecting > Well logging > Amplitude measurement > Peak amplitude
Description: Subject matter wherein the maximum amplitude of the signal is used to determine some characteristic of the acoustic medium.










Patents under this class:

Patent Number Title Of Patent Date Issued
8576660 Ultrasonic imaging in wells or tubulars Nov. 5, 2013
8331466 Method and system for adaptive peak to average power ratio reduction in orthogonal frequency division multiplexing communication networks Dec. 11, 2012
7991553 Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys Aug. 2, 2011
7660195 Attenuation mapping apparatus, systems, and methods Feb. 9, 2010
7577183 Transmission apparatus and peak reduction method Aug. 18, 2009
7565244 Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys Jul. 21, 2009
7423930 Methods and systems for detecting arrivals of interest Sep. 9, 2008
7337068 Global classification of sonic logs Feb. 26, 2008
7013217 System and method for determining formation slowness Mar. 14, 2006
6891777 Subsurface borehole evaluation and downhole tool position determination methods May. 10, 2005
6739692 Ink jet recording apparatus May. 25, 2004
6188643 Method and apparatus for inspecting well bore casing Feb. 13, 2001
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
4899144 Method of transmitting ultrasonic amplitude & time travel information over a logging cable Feb. 6, 1990
4893285 Method and apparatus for cement bond tool Jan. 9, 1990
4813026 Method for logarithmic analysis of seismic reflection signals Mar. 14, 1989
4780858 Borehole televiewer mudcake monitor Oct. 25, 1988
4777629 Method and apparatus for detecting the peak of an analog signal Oct. 11, 1988
4764903 Method and apparatus to determine permeability of rock formations adjacent a borehole Aug. 16, 1988
4757479 Method and apparatus for cement bond logging Jul. 12, 1988
4701891 Method and apparatus for measuring formation compression and shear wave velocity Oct. 20, 1987
4658383 Automatic gain control of digitized full trace acoustic signal in a borehole Apr. 14, 1987
4592030 Method of seismic exploration by acoustic well logging May. 27, 1986
4543648 Shot to shot processing for measuring a characteristic of earth formations from inside a borehole Sep. 24, 1985
4495605 Method for determining the dip angle of geological formations traversed by a borehole Jan. 22, 1985
4479204 Method of monitoring the spacial production of hydrocarbons from a petroleum reservoir Oct. 23, 1984
4402068 Method and apparatus for acoustic well logging Aug. 30, 1983
4349896 Digital acoustic logging method and apparatus Sep. 14, 1982
4210965 Acoustic well logging method and apparatus for detecting and measuring an acoustic wave Jul. 1, 1980
4123744 Method and apparatus for dynamically investigating a borehole Oct. 31, 1978
3968499 Apparatus for producing continuous graphic displays from intermittantly sampled data Jul. 6, 1976











 
 
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