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Class Information
Number: 367/48
Name: Communications, electrical: acoustic wave systems and devices > Seismic prospecting > Land-reflection type > Signal analysis and/or correction > Phase
Description: Subject matter wherein the distinction is made among the phases of the various signals or constituents thereof.

Patents under this class:
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Patent Number Title Of Patent Date Issued
7679993 Method of characterizing a fractured reservoir using seismic reflection amplitudes Mar. 16, 2010
7515505 Method for continuous sweeping and separation of multiple seismic vibrators Apr. 7, 2009
7388811 Method for separating microseismic signals from seismic signals emitted by one or several sources Jun. 17, 2008
7295490 System and method of phase encoding for high fidelity vibratory seismic data Nov. 13, 2007
6954403 Concurrent phase angle graphic analysis Oct. 11, 2005
6612398 Methods for measurement, analysis and assessment of ground structure Sep. 2, 2003
6253870 Methods for measurement, analysis and assessment of ground structure Jul. 3, 2001
6049508 Method for seismic monitoring of an underground zone under development allowing better identification of significant events Apr. 11, 2000
6041018 Method for correcting amplitude and phase differences between time-lapse seismic surveys Mar. 21, 2000
6018495 Method of borehole compensation of earth formation characteristic measurements using depth measurements Jan. 25, 2000
6014344 Method for enhancing seismic data Jan. 11, 2000
5946271 Calibration system for use in time lapse tomography Aug. 31, 1999
5933789 Method and system for applying dispersive normal moveout corrections to seismic survey signals Aug. 3, 1999
5825716 Method of reverberation removal from seismic data and removal of dual sensor coupling errors Oct. 20, 1998
5822269 Method for separation of a plurality of vibratory seismic energy source signals Oct. 13, 1998
5790473 High fidelity vibratory source seismic method for use in vertical seismic profile data gathering with a plurality of vibratory seismic energy sources Aug. 4, 1998
5781503 Method for attenuating surface wavetrains in seismic data Jul. 14, 1998
5724309 Method for geophysical processing and interpretation using instantaneous phase and its derivatives and their derivatives Mar. 3, 1998
5715213 High fidelity vibratory source seismic method using a plurality of vibrator sources Feb. 3, 1998
5550786 High fidelity vibratory source seismic method Aug. 27, 1996
5461594 Method of acquiring and processing seismic data recorded on receivers disposed vertically in the earth to monitor the displacement of fluids in a reservoir Oct. 24, 1995
5361239 Compensation method using a single transmitter measurement tool Nov. 1, 1994
5132938 Adjusting seismic data to tie to other data Jul. 21, 1992
5123750 Gas thermometer Jun. 23, 1992
5077697 Discrete-frequency multipole sonic logging methods and apparatus Dec. 31, 1991
4982374 Method of source coding and harmonic cancellation for vibrational geophysical survey sources Jan. 1, 1991
4982381 Method and device for acquiring and processing signals obtained in wells and particularly in horizontal wells Jan. 1, 1991
4964102 Method for enhancing and evaluating seismic data Oct. 16, 1990
4945519 Method of geophysical exploration Jul. 31, 1990
4899321 Method and apparatus for determining the source signature of land vibrators Feb. 6, 1990
4809239 Method for evaluating parameters related to the elastic properties of subsurface earth formations Feb. 28, 1989
4715020 Simultaneous performance of multiple seismic vibratory surveys Dec. 22, 1987
4688198 Entropy guided deconvolution of seismic signals Aug. 18, 1987
4661935 Seismic data processing Apr. 28, 1987
4654836 Seismic vibrator source having improved phase detector Mar. 31, 1987
4635239 Data processing Jan. 6, 1987
4633447 Response waveform characterization of geophysical data Dec. 30, 1986
4633399 Method of seismic data enhancement using a phase of rectified trace seismic parameter Dec. 30, 1986
4554647 Method for measuring seismic phase shift of compressional waveforms Nov. 19, 1985
4542487 Method and apparatus for shear wave logging Sep. 17, 1985
4532618 System for and method of processing a seismic signal Jul. 30, 1985
4500976 Seismic exploration Feb. 19, 1985
4479204 Method of monitoring the spacial production of hydrocarbons from a petroleum reservoir Oct. 23, 1984
4458341 Method and apparatus for seismic exploration Jul. 3, 1984
4369506 Method and apparatus for shear wave logging Jan. 18, 1983
4367542 Phase shifting of waveforms Jan. 4, 1983
4353121 High resolution, marine seismic stratigraphic system Oct. 5, 1982
4351035 Method of and apparatus for locating disturbances in a mineral seam Sep. 21, 1982
4348749 Phase correcting seismic traces Sep. 7, 1982
4314364 Long sweep vibroseis record production Feb. 2, 1982

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