Patents
Patents for G01V 1 - Seismology; Seismic or acoustic prospecting or detecting (27,288)
10/1987
10/07/1987CN87101987A Nondestructive downhole seismic vibrator source and processes of utilizing vibrator to obtain information about geologic formations
10/07/1987CN87101970A Downhole electromagnetic seismic source
10/06/1987US4698793 Methods for processing sonic data
10/06/1987US4698792 Method and apparatus for acoustic dipole shear wave well logging
10/06/1987US4698791 Acoustic well logging method for improved amplitude data acquisition
10/06/1987US4698759 Process for structural geologic analysis of topography and point data
10/06/1987US4697667 Debris ejector for a seismic vibrator
10/06/1987US4697650 Method for estimating formation characteristics of the exposed bottomhole formation
09/1987
09/30/1987EP0239464A2 Seismic and logging tool and method
09/30/1987EP0238736A1 Seismic pulse generation
09/29/1987US4697255 Implosion type energy source for seismic exploration
09/29/1987CA1227576A1 Method for removing noise from data
09/29/1987CA1227557A1 Robust estimator method for determining, when subsequent data processing can include sign-bit representations of full-waveform seismic traces
09/24/1987WO1987005708A1 Nondestructive downhole seismic vibrator source and processes of utilizing the vibrator to obtain information about geologic formations
09/24/1987WO1987005707A1 Downhole electromagnetic seismic source
09/23/1987EP0237616A2 Line array transducer assembly
09/23/1987EP0237561A1 Audio and video digital recording and playback system
09/22/1987US4695988 Underwater piezoelectric arrangement
09/22/1987US4695987 Hydroacoustic apparatus
09/22/1987US4695984 Method for establishing a surface consistent correction for the effects of the low velocity layer in seismic data processing
09/22/1987US4695787 Device for detecting and locating penetration of water into a marine acoustic streamer
09/16/1987EP0113369B1 Scaling of sound source signatures in underwater seismic exploration
09/15/1987US4694438 Time-offset-frequency-amplitude panels for seismic identification of hydrocarbons
09/15/1987US4694436 Noise-attenuating streamer-cable bulkhead
09/15/1987US4694435 For receiving acoustic waves in water ar different depth levels
09/15/1987US4694304 Earthquake displacement recorder
09/15/1987US4694162 Sign bit optical-electrical geophone
09/15/1987US4693336 Underwater seismic testing
09/15/1987US4693335 Multi channel borehole seismic surveying tool
09/15/1987CA1226931A1 Acoustic lens for marine seismic data multiple reflection noise reduction
09/11/1987WO1987005404A1 Noise suppression during seismic exploration
09/09/1987EP0236226A1 Hanging structure for coupling a seismic source to a bore hole wall
09/09/1987EP0115717B1 Apparatus for radio and cable transmission of signals between a central control and recording system and data acquisition units
09/09/1987CN86207534U Ultrasonic image logging detector with a gyroscope
09/08/1987US4692912 Automatic force control for a seismic vibrator
09/08/1987US4692910 Methods of determining lithological characteristics of an underground formation which utilize compressional velocity and shear velocity data
09/08/1987US4692909 Adaptive seismic signal processor
09/08/1987US4692908 Method and apparatus for investigating stand-off in a borehole
09/08/1987US4692907 For use in a seismic cable
09/08/1987US4692906 Ocean bottom seisometer
09/08/1987US4692905 Method for geophysical prospecting of complex orebodies
09/08/1987US4691803 Projectile powered piston
09/08/1987CA1226621A1 Remote calibration for acoustic transducer array
09/01/1987US4691307 AGC circuit for televiewer
09/01/1987US4691306 Method for the processing of recordings of signals resulting from a seismic exploration of a medium
09/01/1987US4689997 Motion detector suitable for detecting earthquakes and the like
08/1987
08/25/1987US4689777 Marine seismic cable
08/25/1987US4689774 Seismic streamer section
08/25/1987CA1226064A1 Method of seismic lithologic modeling
08/20/1987DE3701189A1 Method and device for fitting seismic sensors in an oil production well
08/20/1987DE3611374C1 Chain-shaped arrangement of several borehole probes
08/19/1987EP0232646A1 Immobilizing device for a cardan-mounted detector set
08/18/1987US4688198 Entropy guided deconvolution of seismic signals
08/12/1987EP0232010A2 Acoustic energy transmitter for borehole logging
08/12/1987EP0231690A1 Device for amplifying and sampling analog multiplex signals
08/12/1987EP0231679A1 Device for amplifying and scanning signals with wide dynamic range
08/11/1987US4686660 Assembly for use in seismic surveys of the sea bed
08/11/1987US4686657 Matching P wave and shear wave sections in seismic exploration
08/11/1987US4686655 Filtering system for processing signature signals
08/11/1987US4686654 Method for generating orthogonal sweep signals
08/11/1987US4686653 Method and device for making geophysical measurements within a wellbore
08/11/1987US4686474 Survey system for collection and real time processing of geophysical data
08/11/1987CA1225457A1 Wide band acoustic receiver transducer
08/05/1987EP0231063A2 Borehole logging method for determining the damping of acoustic tube waves in subsurface formations along a borehole wall
08/05/1987EP0230812A1 Seismic probe, in particular for use in a non-tubed borehole
08/05/1987EP0230415A1 Electroacoustic pulse source for high resolution seismic prospectings.
08/04/1987US4685094 Lateral compliance device for geophone springs
08/04/1987US4685092 Method and apparatus for the acoustic inspection of a borehole fitted with casing
08/04/1987US4685091 Method and apparatus for acoustic well logging
08/04/1987US4685090 Tubular article
08/04/1987US4684958 Seismic displacement recorder for base-isolated structures
08/04/1987US4684947 Simultaneous digitizing apparatus for an acoustic tool
07/1987
07/30/1987EP0202246A4 Seismic generator.
07/29/1987EP0230372A2 Vibratory seismic source for generating combined compressional and shear waves
07/29/1987EP0230360A2 Apparatus for generating low frequency acoustic energy waves
07/29/1987CN87100310A Process and device for installing seismic sensors inside petroleum production well
07/28/1987US4683558 Control system for inclined impact-type surface seismic source
07/28/1987US4683557 Acoustic logging method for identifying subsurface formation boundaries
07/28/1987US4683556 Method for identifying arrival times of waveforms on acoustic borehole well logs
07/28/1987US4682669 Transportable hydraulic seismic transducer
07/21/1987US4682309 Device for generating acoustic pulses by implosion, inside a well
07/21/1987US4682308 Rod-type multipole source for acoustic well logging
07/21/1987US4682307 Underwater seismic testing
07/21/1987US4682248 Audio and video digital recording and playback system
07/16/1987WO1987004258A1 System for marine seismic exploration
07/15/1987EP0228932A1 Apparatus for use in the seismic exploration of the sea for the receipt of seismic signals and their transmission to a central control and recording system
07/15/1987EP0228832A1 Support member for pressure sensor
07/14/1987US4680741 Method and apparatus for seismic exploration using non-linear sweeps
07/14/1987CA1224263A1 Acoustic multipole compressional wave logging
07/08/1987EP0228231A2 Method for seismic dip filtering
07/08/1987EP0228134A2 Axial borehole televiewer
07/08/1987EP0227710A1 Device for the hydrodynamic generation of acoustic pulses in a liquid volume.
07/07/1987US4679174 Method for seismic lithologic modeling
07/07/1987CA1223953A1 Distributed marine seismic source
06/1987
06/30/1987US4677598 Seismic data acquisition method
06/30/1987US4677597 Method for enhancing common depth point seismic data
06/30/1987US4677596 Method of detecting and correcting impulse noise errors in log data
06/30/1987US4676337 Seismic vibrator baseplate
06/24/1987EP0226366A2 Adaptive seismometer group recorder and method of seismic exploration
06/24/1987EP0226224A2 Electromechanical transducer