Patents
Patents for G01V 1 - Seismology; Seismic or acoustic prospecting or detecting (27,288)
06/1990
06/19/1990US4935905 Method and apparatus for seismic exploration
06/19/1990US4935904 Method for suppressing coherent noise in seismic data
06/19/1990US4935903 Reinforcement of surface seismic wavefields
06/13/1990EP0372908A2 Telemetry system
06/12/1990US4933913 Method of seismic surveying for resolving the effects of formation anisotropy in shear wave reflection seismic data
06/12/1990US4933912 Three dimensional seismic prospecting method
06/09/1990CA2003632A1 Towed array streamer
06/06/1990EP0371870A1 Method and apparatus for acquiring and treating signals obtained in boreholes, especially in horizontal boreholes
06/05/1990US4932004 Distributed geophone data acquisition system
06/05/1990US4932003 Acoustic quadrupole shear wave logging device
05/1990
05/29/1990US4930113 Suppression of air-coupled noise produced by seismic vibrators
05/29/1990US4930111 Overlap correlator synthetic aperture processor
05/29/1990US4930110 Method for conducting three-dimensional subsurface seismic surveys
05/29/1990US4930109 Method and apparatus of measuring ultrasonic time travel information obtained from logging operations in a well borehole
05/29/1990US4928784 Anti-bounce device for preventing the multiple shocks of a moving mass after a first impact against another element
05/29/1990US4928783 Well borehole sound source
05/23/1990CN1042421A Marine seismic source frame
05/22/1990US4928269 Determining impedance of material behind a casing in a borehole
05/22/1990US4928263 Hydrophones and similar devices
05/22/1990US4928262 Marine seismic streamer retrieval system
05/22/1990US4928031 Pressure/temperature compensated transducer pad assembly
05/18/1990CA2003280A1 Demountable hydrophone cable connector
05/18/1990CA2003279A1 Construction of towed streamers
05/16/1990EP0368472A1 A fastening member and fastening arrangement for seismic equipment
05/16/1990EP0368440A2 Vibratory seismic source
05/15/1990US4926397 Hydrophone for use in a body of water
05/15/1990US4926394 Monte Carlo method for estimating lithology from seismic data
05/15/1990US4926393 Multifold vertical seismic profile acquisition method and technique for imaging the flank of a salt dome
05/15/1990US4926392 Method and apparatus for obtaining seismic vibrator reflection data
05/15/1990US4926391 Signal processing to enable utilization of a rig reference sensor with a drill bit seismic source
05/15/1990US4924950 Method of drilling a well by utilizing AE/MA measurement
05/15/1990CA1269166A1 Method and apparatus for determining cement conditions
05/09/1990EP0367349A2 Method for processing marine seismic data
05/09/1990CN1041979A Recognizing unwanted material in textile fibres
05/08/1990US4924449 Acoustic sub-surface interrogator
05/08/1990US4924390 Method for determination of earth stratum elastic parameters using seismic energy
05/08/1990US4923030 Device for generating acoustic waves by causing a falling mass to strike a target element coupled with the walls of a well
05/08/1990CA1268851A1 Method and apparatus for generating underwater acoustics
05/02/1990EP0366224A2 True-amplitude dip moveout correction
05/01/1990US4922473 Enclosure for suppression of air-coupled noise produced by seismic vibrators
05/01/1990US4922472 Apparatus for inducing elliptically polarized shear waves in an earth medium
05/01/1990US4922467 Acoustic detection apparatus
05/01/1990US4922466 Method and apparatus for presenting seismic traces
05/01/1990US4922465 Interpolation of severely aliased events
05/01/1990US4922362 Methods for deconvolution of unknown source signatures from unknown waveform data
05/01/1990US4921068 Internal bubble-suppression method and apparatus
05/01/1990US4920802 Ultrasonic check valve inspection
05/01/1990CA1268534A1 Vertical marine flute
04/1990
04/30/1990CA2001763A1 Method for processing marine seismic data
04/25/1990EP0365270A2 Processing seismic data
04/25/1990EP0364786A1 Identification of foreign matter in textile fibres
04/24/1990US4920523 Hydrophone mount
04/24/1990US4919646 System for automatically balancing a centrifuge in operation
04/18/1990EP0364160A2 Improvements in or relating to arrays
04/17/1990US4918670 Method for interval velocity analysis and determination of reflector position from before stack seismic data
04/17/1990US4918669 Method and apparatus for sonic dip measurement
04/17/1990US4918668 Marine vibrator tuneable array
04/17/1990US4918666 Tubular piezo-electric sensor with high sensitivity
04/17/1990CA1267967A1 Hydraulic fracture analysis method
04/11/1990CN1007555B Entropy guided deconvolution of seismic signals
04/10/1990US4916673 Method and apparatus for detecting the peak of an analog signal
04/10/1990US4916648 Ultrasonic logging apparatus with improved receiver
04/10/1990US4916615 Method for stratigraphic correlation and reflection character analysis of setsmic signals
04/04/1990EP0361216A2 Loose rock detector
04/04/1990CN1041040A Liquid acoustic waveguide tube
04/03/1990US4914636 Method and device for acquisition of seismic data
04/03/1990CA1267469A1 Device for the reception of seismic signals and their transmission to a central-control and recording system
03/1990
03/28/1990EP0360652A1 Signal reception system that can be linked to the wall of a well or borehole
03/28/1990CN1040869A Method for evaluating and suppressing anomalous noise amplitudes in seismic data
03/27/1990US4912684 Seismic streamer communication system
03/27/1990US4912683 Method for acoustically measuring wall thickness of tubular goods
03/27/1990US4912682 Point location determination at or close to the surface
03/27/1990US4911244 Marine casing suspension apparatus
03/27/1990US4911012 Sewer line detection system
03/21/1990EP0260165B1 Process and apparatus for initiating data acquisition devices, in particular those for seismic data
03/20/1990US4910718 Method and apparatus for acoustic emission monitoring
03/20/1990US4910716 Suppression of coherent noise in seismic data
03/20/1990US4910715 Marine seismic streamer cable
03/14/1990EP0358390A2 Piezoelectric transducer
03/14/1990CN1040412A Image method for well log
03/13/1990US4908803 Semi-sequential transmission method and system using simultaneously several radio transmission frequencies for connecting a seismic reception assembly to a central control and recording laboratory
03/13/1990US4908802 Apparatus for fiber optic seismic exploration system
03/13/1990US4908801 Real-time simulation of the far-field signature of a seismic sound source array
03/13/1990US4907670 Seismic exploration using compressional and shear waves simultaneously
03/07/1990EP0357539A2 Infra-sonic detector and alarm with self adjusting reference
03/07/1990EP0357268A2 Multicomponent transducer
03/07/1990CN1040269A Anti-bounce device for preventing multiple shocks of moving mass after first impact against another element
03/06/1990US4907206 Method for estimating formation lithology
03/06/1990US4907205 Method for attenuating multiple reflection events in seismic data
03/06/1990US4907204 Method for identifying formation fractures surrounding a well casing
03/06/1990US4905517 Multicomponent transducer
03/06/1990CA1266390A1 Small powerful hydro gun
02/1990
02/28/1990EP0355954A2 Multi-barrel subsea air gun module
02/28/1990CN1040099A Hydrocarbon detecting method of prospecting earthquake
02/27/1990US4905209 Correlation match filter for passive signal detection
02/27/1990US4905205 Method for transmitting to a central recording device seismic data collected by acquisition apparatus distributed over the ground and a device for implementing same
02/27/1990US4905204 Method of suppressing noise from a related seismic traces
02/27/1990US4904956 Linear digital frequency sweep synthesizer
02/27/1990US4904943 Method for detecting long waves and predicting earthquakes
02/22/1990WO1990001712A1 A geophone system