Patents
Sitemap › G01 - Measuring; Testing › G01V - Geophysics; Gravitational measurements; Detecting masses or objects; Tags › G01V 1 - Seismology; Seismic or acoustic prospecting or detecting
Patents for G01V 1 - Seismology; Seismic or acoustic prospecting or detecting (27,288)
07/1991
07/24/1991CN1013312B Apparatus for collecting and transmitting seismic data while drilling
07/24/1991CN1013311B Dowhole seismic exploration device and apparatus
07/24/1991CN1013310B Simultaneous performance of multiple seismic vibratory surveys
07/24/1991CN1013309B Oscillating orbital vibrator
07/23/1991US5034712 Magnetic heading sensor alignment
07/23/1991CA1286764C Method and device for treating seismic data through correlation
07/19/1991CA2034264A1 Method for identifying hydrocarbon-bearing zones in subsurface formations
07/17/1991CN1013227B Horizon velocity analysis
07/17/1991CN1013226B Method for depth imaging multicomponent seismic data
07/16/1991US5031719 Seismic sonde
07/16/1991US5031718 Method and apparatus for generating seismic energy in transition zones
07/16/1991US5031717 Advanced downhole periodic seismic generator
07/10/1991EP0436431A2 Low frequency hydrophone and sonar antenna using such hydrophones
07/10/1991CN1052954A Vibrating seismic source usable notably in wells
07/09/1991US5031163 Method of determining position and dimensions of a subsurface structure intersecting a wellbore in the earth
07/09/1991US5031159 Hydroacoustic ranging system
07/09/1991US5031158 Method and apparatus for drill bit location
07/09/1991US5031155 Compression and reconstruction of sonic data
07/09/1991US5031154 Three-dimensional object imaging method and system
07/09/1991US5030873 Monopole, dipole, and quadrupole borehole seismic transducers
07/03/1991EP0434702A1 A geophone system.
07/03/1991EP0237561A4 Audio and video digital recording and playback system
07/03/1991EP0181859B1 Marine seismic system
07/02/1991US5029146 Multisource multireceiver method and system for geophysical exploration
07/02/1991US5029145 Methods of geophysical exploration
07/02/1991US5027658 Three dimensional imaging method and device using ellipsoidal backprojection with arbitrarily shaped pulses
06/1991
06/28/1991CA2031416A1 Method of using a circularly-polarized source to characterize seismic anisotropy
06/27/1991WO1991009328A1 Method and device for acquiring seismic data in a weill in two opposite directions
06/26/1991EP0434511A1 Vibrating seismic source, particularly for use in boreholes
06/26/1991EP0434456A2 A method for derivation of interval velocities from post-migration parts
06/26/1991EP0434229A2 Enhanced ocean bottom sonar system
06/26/1991CN2079760U Earth pulse frequency tester
06/26/1991CN1052556A Gun and shell for generating earthquake focus in shallow layer
06/26/1991CN1013000B Method for estimating shear wave reflection data from acquired compressional wave reflection deta
06/25/1991US5027332 Method for geophysical exploration
06/25/1991US5027331 Acoustic quadrupole shear wave logging device
06/20/1991CA2032582A1 Seismic vibration generating device used particularly in oil wells
06/19/1991EP0432328A1 Marine seismic streamer retrieval system
06/18/1991US5025423 Enhanced bottom sonar system
06/18/1991US5024090 Loose rock detector
06/12/1991CN1052197A Bandwidth enhancing seismic acquisition system and method
06/11/1991US5022485 Method and apparatus for detonation of distributed charges
06/11/1991US5022484 Logging method and apparatus using a sonde equipped with measuring pads
06/05/1991EP0430688A2 Common offset depth migration with residual moveout correction
06/04/1991US5022052 Analog signal binary transmission system using slope detection
05/1991
05/29/1991CN1051688A Cleaning apparatus and process
05/29/1991CA2004204A1 Acoustic data transmission through a drill string
05/28/1991US5020036 Magnetostrictive transducer for logging tool
05/28/1991US5020033 Large eddy break-up device for towed arrays
05/28/1991US5018598 Apparatus for generating seismic waves
05/28/1991US5018389 Rock-stress measuring method
05/28/1991CA1284531C Increased sensitivity piezoelectric hydrophones
05/22/1991CN2077552U Underground pressure transmission butt-jointing apparatus
05/22/1991CN1051625A Method for receiving electromagnetic radiation before seism and equipment thereof
05/21/1991US5018115 Marine acoustic source
05/21/1991US5018112 Method for hydrocarbon reservoir identification
05/21/1991US5016727 Method and device of seismic prospection in wells and particularly deviated wells
05/15/1991EP0426761A1 Acoustic field transducers.
05/14/1991US5014813 Water-proof geophone housing
05/14/1991CA1284210C Acoustic transducer
05/14/1991CA1284209C Transmission having one central seismic data recording device, for signalsemitted by a set of probes
05/14/1991CA1284208C Process for the determination of the geometry of a multi-seismic wave emitting device
05/08/1991EP0426518A1 Method and circuit for the transmission of high speed data according to a quasi asynchronous mode
05/08/1991EP0426515A1 Improvements in seismic prospection processes
05/08/1991EP0426514A1 Method for underwater seismic prospection
05/08/1991EP0426511A1 Modular device for receiving, recording and transmitting seismic data with several levels of multiplexing
05/08/1991EP0426381A2 Continuity logging waves in a lithographic region between two boreholes
05/08/1991CN2076682U Seismic alarm
05/07/1991USH912 Ultrasonic liquid-in-line detector for tubes
05/07/1991US5014249 Method in a real time control system for seismic interference
05/07/1991US5012675 Integrating multiple mappable variables for oil and gas exploration
05/04/1991CA2029207A1 Multilevel multiplex modular seismic data reception, acquisition and transmission device
05/02/1991WO1991006017A1 Seismic directional sensor for terrestrial sound
05/02/1991EP0425250A2 Method and apparatus for source coding and harmonic cancellation for vibrational geophysical survey sources
05/02/1991DE3639252C1 Transmitting pulsed digital signals immune to interference - spacing at intervals to represent 1 and 0 and recovering at receiver by resettable time window
05/01/1991CN1012543B Piezoelectric transduce with multiple sensitive coaxial elements
05/01/1991CA2028988A1 High rate data transmission method and device using a quasi-asynchronous mode
04/1991
04/30/1991US5012453 Inverse vertical seismic profiling while drilling
04/30/1991US5010976 Characterization of the full elastic effect of the near surface on seismic waves
04/27/1991WO1991006879A1 Seismic cable device
04/27/1991WO1991006878A1 Seismic device
04/27/1991WO1991006877A1 Seismic cable
04/25/1991CA2023478A1 Methods for attenuating noise in seismic data
04/24/1991EP0424308A2 Geophysical survey system
04/24/1991EP0424271A2 Method and apparatus for determining compressional first arrival times from waveform threshold crossings provided by apparatus disposed in a sonic well tool
04/23/1991US5010531 Three-dimensional geophone
04/23/1991US5010530 Magnetic coupler for electroacoustic hydrophones
04/23/1991US5010527 Method for determining the depth of a hydraulic fracture zone in the earth
04/23/1991US5010526 Method of digital filtering
04/21/1991CA2023471A1 Method for characterizing velocity estimates
04/16/1991US5008861 Geophysical exploration by automatically picking and associating stacked seismic sections with regional coherency peaks of velocity spectra
04/16/1991US5007292 Multicomponent transducer
04/16/1991CA1283201C System for acoustically determining the quality of the cement bond in a cased borehole
04/10/1991EP0421658A2 Characterization of the full elastic effect of the near surface on seismic waves
04/10/1991EP0258397B1 Noise suppression during seismic exploration
04/09/1991US5007032 Detecting an acoustic signal produced by a vehicle
04/09/1991US5007031 Apparatus for positioning geophones in shallow holes
04/09/1991US5005666 Attenuation of borehole tube-waves
04/09/1991US5005665 Piezoelectric seismic vibration device and method
04/09/1991US5005418 Three dimensional imaging device using ellipsoidal backprojection
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