Patents
Patents for G01V 1 - Seismology; Seismic or acoustic prospecting or detecting (27,288)
08/1993
08/24/1993US5239514 Narrow band magnetostrictive acoustic source
08/24/1993US5239467 Method for enhancing geophysical data by nonlinear compression of the dynamic range
08/19/1993WO1993016400A1 Detector
08/17/1993US5237538 Method for removing coherent noise from an array of seismic traces
08/17/1993US5235857 Real time 3D imaging device using filtered ellipsoidal backprojection with extended transmitters
08/12/1993DE4203894A1 Electrical vibration frequency meter for vibration receiver with tripod - has three tubes in pendulum swivelable by ball joint in all directions and light source pointing to floor before magnet
08/11/1993EP0555148A1 Process for determining the far-field signature of a plurality of seismic sources
08/11/1993CN2140067Y Automatic siren for earthquake
08/10/1993US5235556 Interpolation of aliased seismic traces
08/10/1993US5235555 For imaging seismic reflection data selected from a data volume
08/10/1993US5235554 Method for correcting impulse response differences of hydrophones and geophones as well as geophone coupling to the water-bottom in dual-sensor, bottom-cable seismic operations
08/10/1993CA1321259C Method for inversion of seismic data to yield estimates of formation lithology
08/05/1993WO1993015421A1 Method and apparatus for acoustic shear wave logging
08/03/1993US5233570 Low frequency underwater acoustic radiator
08/03/1993US5233569 Modified residual migration of seismic data
08/03/1993US5233568 Method of estimating shale fraction
08/03/1993US5233567 Method for determining the path of a borehole
08/03/1993CA1321007C Flexcompressional acoustic transducer
08/03/1993CA1321006C Method of geophysical exploration
07/1993
07/28/1993EP0553053A2 Marine seismic system
07/28/1993EP0552769A2 Two-wire multi-channel streamer communication system
07/27/1993US5231608 Ultrasonic object detecting apparatus
07/27/1993US5231252 Sensor platform for use in seismic reflection surveys
07/27/1993US5231251 Apparatus and method for the acquisition of seismic data
07/24/1993CA2087908A1 Marine seismic system
07/20/1993US5229977 Directional underwater acoustic pulse source
07/20/1993US5229976 Method for creating a numerical model of the physical properties within the earth
07/20/1993US5229940 Method of extracting three dimensional information from a grid of two dimensional seismic data
07/20/1993US5229939 Method and apparatus for correcting a shear wave slowness estimate from a sonic well tool and producing an output medium reflecting a true value of shear wave slowness
07/20/1993US5229938 Method for migrating seismic data by using ray tracing in determining two way travel times
07/20/1993US5229554 Downhole electro-hydraulic vertical shear wave seismic source
07/20/1993US5229553 Acoustic isolator for a borehole logging tool
07/20/1993US5229552 Method and apparatus for the downhole measurement of elastic rock properties
07/20/1993CA1320356C Multiplexed fiber optic sensor
07/14/1993EP0551210A2 Seismic surveying and interpolation of aliased seismic traces
07/13/1993US5228011 Variable multi-stage arc discharge acoustic pulse source transducer
07/13/1993US5228010 Seismic energy source air gun
07/13/1993US5228005 Device for use in a seismic streamer
07/08/1993WO1993013434A1 Method of seismic migration using a massively parallel computer
07/08/1993WO1993013433A1 Linear acoustic antenna
07/08/1993DE4200817C1 Data transmission unit transmitting sonic signals to recorder from hydrophones - arranged on measuring cable towed by ship equipped with sonic pulse generator and identical processor is assigned to each hydrophone with microphone input
07/06/1993US5226019 Method of geophysical exploration
07/06/1993US5226018 Geophysical prospecting method using pseudo-random pulse sequences
07/06/1993US5226017 Method and apparatus for acquiring borehole seismic data in two opposite directions
07/06/1993US5225638 Hydrogen-oxygen acoustic logging device
07/06/1993CA1319991C Vibrator quality control method and system
07/01/1993DE4228112C1 Object detection arrangement - contains light source and receiver, comparator with comparison voltages controlled by micro-controller
06/1993
06/30/1993EP0549419A2 Method and apparatus for hydraulic isolation determination
06/30/1993EP0548384A1 Method of improving the seismic resolution of geologic structures
06/30/1993CN1073770A Method of improving the seismic resolution of geologic structures
06/29/1993CA1319747C Acoustic sub-surface interrogator
06/24/1993WO1993012443A1 Active and/or passive monitoring system for an underground deposit by using fixed units
06/24/1993WO1993003401A3 Method and apparatus for petroleum and gas exploration
06/24/1993DE4141562A1 Propeller driven vehicle locating arrangement - contains extended transducer arrangement, each contg. bandpass filter, envelope curve demodulator and low-pass filter, all feeding direction former
06/23/1993EP0547961A1 Active or passive surveillance system for underground formation by means of fixed stations
06/16/1993EP0545986A1 A method to operate with a wire-guided, in air or water, movable vehicle and a device for carrying out the method.
06/16/1993CN2136483Y Domestic automatic emergence alarm for seism
06/16/1993CN2136482Y Hf seismoscope and piezoelectric wave detector interface arrangement
06/16/1993CN1021243C Device for monitoring drilling
06/16/1993CN1021242C Method and apparatus for detecting and evaluating borehole wall fractures
06/15/1993US5220504 Evaluating properties of porous formations
06/12/1993CA2081648A1 Method for continuity logging
06/09/1993EP0519031A4 Apparatus and method for use in marine seismic surveying
06/08/1993US5218573 Well perforation inspection
06/08/1993CA1318846C Energy collection method in a single point of a drilling well by pulling of a massive column
06/05/1993CA2056956A1 Method of improving the seismic resolution of geologic structures
06/01/1993US5216638 Method and apparatus for the acoustic investigation of a casing cemented in a borehole
05/1993
05/27/1993DE4137644A1 Approximate determination of useful signal from noise affected measurement values - dividing successively gathered signals in two, forming mean values and deriving weighting function
05/26/1993CN2134485Y Heavy hammer impact well instrument for well quake source
05/25/1993US5214617 Hydroacoustic ranging system
05/25/1993US5214614 Seismic directional sensor for solid-borne sound
05/25/1993US5214613 Method and apparatus for determining properties of anisotropicelastic media
05/25/1993US5214612 Swing plate latch mechanism
05/25/1993US5214252 Logging method and device in well bores utilizing directional emission and/or reception means
05/19/1993EP0542584A1 Flexible tubing containing a centred line for transfer of energy or information and method of manufacturing such tubing
05/19/1993EP0541609A1 Zebra mussel (dreissena polymorpha) and other aquatic organism control.
05/19/1993CN2133850Y 多功能地震报警器 Multifunction earthquake alarm
05/18/1993US5212669 Remote cut-off valve
05/18/1993US5212668 Method for quantification of the level of weather and sea noise during marine seismic surveys
05/18/1993US5212353 Transducer system for use with borehole televiewer logging tool
05/18/1993CA1318020C Method of transmitting ultrasonic amplitude and time travel information over a logging cable
05/18/1993CA1318019C Stabilized reference geophone system for use in downhole environment
05/13/1993WO1993009448A1 Weight dropping type vibration source in hole
05/13/1993DE4221359C1 Detecting periodically varying, pulse-like noise strengths - forming correlation function from signals produced by frequency filtering and threshold value
05/13/1993DE4136587A1 Ammunition locating unit distinguishing between live munition and shrapnel etc. - uses sonic or ultrasonic exciter for direct application of sonic waves for exciting ground and evaluates reflected signal
05/12/1993EP0541451A1 Procedure for determining the trajectory of a ray through a tri-dimensional geological medium
05/12/1993EP0541265A2 Method of processing seismic data
05/12/1993EP0292541B1 Seismic processing and imaging with a drill-bit source
05/12/1993CN2133001Y Housthold earthquake siren
05/11/1993US5210381 Apparatus for generating vibrational energy in a borehole
05/05/1993CN1071760A Seismic signal sensor
05/04/1993CA1317367C Method and apparatus for converting tube waves to body waves for seismic exploration
04/1993
04/29/1993WO1993008485A1 Borehole digital geophone tool
04/28/1993CN2131111Y Underwater seismic wave receiver
04/27/1993US5206916 Modular cellular automation for line association and identification
04/27/1993US5206840 Geophone implantation system
04/27/1993US5206839 Underwater sound source
04/27/1993US5206837 Method for compensating for the effect of irregular spatial sampling of seismic wavefields
04/27/1993US5206836 Method of determining position and dimensions of a subsurface structure intersecting a wellbore in the earth
04/27/1993US5206835 Modular device for reception, the acquisition and the transmission of seismic data with several multiplexing levels