Patents
Patents for G01V 1 - Seismology; Seismic or acoustic prospecting or detecting (27,288)
01/1991
01/08/1991US4982811 Fluid driven torsional dipole seismic source
01/08/1991CA1278852C Method and apparatus for filtering seismic data
01/08/1991CA1278851C Method of acoustic well logging
01/02/1991EP0406080A1 Method and apparatus for registering analogue data allowing accurate digitization
01/01/1991US4982382 Method of modeling subsurface formations
01/01/1991US4982381 Method and device for acquiring and processing signals obtained in wells and particularly in horizontal wells
01/01/1991US4982374 Method of source coding and harmonic cancellation for vibrational geophysical survey sources
12/1990
12/29/1990CA2020096A1 Acquisition method and device giving an accurate digitization of analog signal
12/27/1990CA1278368C Method and device for improving the sensitivity and the signal-to-noise ratio and piezoelectric transducers comprising a mulitiplicity of parallel mounted sensors
12/25/1990US4980874 Method and apparatus for maximizing seismic shear wave production
12/25/1990US4980866 Common offset depth migration with residual moveout correction
12/25/1990US4980674 Acoustic ash deposition monitor apparatus and method
12/25/1990US4980644 Earthquake detecting magnetometer with movable magnetic compass needle and method of using same
12/25/1990US4979585 Compound suspension linkage
12/19/1990CN1047924A Utilization of satellite thermal infrared abnormality for three-essential on-shock prediction of earthquake above medium intensity
12/18/1990US4979152 Device for transmitting signals by radio and cable between a central control and recording system and data acquisition devices
12/18/1990US4979151 Method and apparatus for investigating stand-off in a borehole
12/18/1990US4979150 System for attenuation of water-column reverberations
12/18/1990US4978948 Combined earthquake sensor and night light
12/18/1990CA1278085C Method and device for locating submerged objects in relationship to a towing ship
12/18/1990CA1278084C Method of seismic exploration including processing and displaying shear wave seismic data
12/18/1990CA1278083C Device for generating simultaneously, in the ground, longitudinal and transversal acoustic waves
12/18/1990CA1278082C Pressure wave sensing device of the continuous structure piezoelectric type and method for fabricating said device
12/18/1990CA1278081C Device for generating acoustic waves by means of percussion in a well
12/11/1990US4976333 Method for reshaping acoustical pressure pulses
12/11/1990CA1277768C Log processing system
12/11/1990CA1277760C Process for directly detecting the presence of hydrocarbons in a rock formation
12/11/1990CA1277759C Method and apparatus for the generation and transmission of signals for echo location and other signaling purposes, particularly in geophysical exploration
12/05/1990EP0400776A2 Marine seismic surveying utilizing dual streamers
12/05/1990EP0400775A2 Marine seismic surveying
12/05/1990EP0400769A2 Real-time simulation of the far-field signature of a seismic sound source array
12/04/1990USRE33472 Rod-type multipole source(for) and receiver for acoustic well logging
12/04/1990US4975891 Vehicle sensing device and method
12/04/1990US4974671 Down-hole seismic source with containment
12/04/1990CA1277412C Seismic and logging tool and method
12/04/1990CA1277411C Ultrasonic mine survey probe
11/1990
11/30/1990CA2004941A1 Time variant suppression of coherent noise signals in a seismic section
11/28/1990EP0399122A1 Anti-rebounce apparatus for avoiding multiple impacts of a mass after a first impact against another element
11/27/1990US4974216 Acoustic energy source
11/27/1990US4974212 Method for processing marine seismic data
11/27/1990US4972578 Method of making a cable mounted magnetostrictive line hydrophone
11/22/1990EP0398071A2 Method for reshaping acoustical pressure pulses
11/20/1990US4972384 Method for identifying hydrocarbon-zones in subsurface formations
11/20/1990US4972383 Method of obtaining a model representative of a heterogeneous medium, and particularly the sub-soil
11/20/1990US4972382 Time variant suppression of coherent noise signals in a seismic section
11/20/1990CA1276671C Electromagnetic vibrator for seismic and civil- engineering applications
11/15/1990WO1990013831A1 Process for automatic plotting and assistance in interpretation of seismic cross-sections in particular using image analysis techniques
11/15/1990WO1990013830A1 Seismic source
11/14/1990EP0397318A2 Energy source for seismic surveying
11/14/1990EP0397313A2 Comprehensive system for evaluation of velocities of acoustical energy of sedimentary rocks
11/14/1990EP0252971B1 System for marine seismic exploration
11/14/1990CN1046983A Oil deposit-described method by earthquake data
11/13/1990US4970704 Acoustical generator
11/13/1990US4970699 Method for color mapping geophysical data
11/13/1990US4970697 Vertical marine seismic array
11/13/1990US4970696 Method for conducting three-dimensional subsurface and marine seismic surveys
11/13/1990US4970695 In situ calibration of a sensor
11/13/1990US4970046 Marine seismic source frame
11/13/1990CA1276280C Seismic source firing control system
11/06/1990US4969130 System for monitoring the changes in fluid content of a petroleum reservoir
11/06/1990US4969129 Coding seismic sources
11/06/1990US4969128 Borehole acoustic logging system having synchronization
11/06/1990US4967870 Alignment restoration means for use in seismic apparatus
11/01/1990WO1990013051A1 Device for generating elastic waves in a body and for seismic prospecting
10/1990
10/31/1990EP0395500A2 Method of filtering sonic well logging data
10/31/1990EP0395499A2 Method and apparatus for the acoustic investigation of a casing cemented in a borehole
10/31/1990CN1046609A Device for generating elastic waves in body and for seismic prospecting
10/30/1990US4967401 Method of acquiring and interpreting seismic data to obtain lithological parameters
10/30/1990US4967400 Digital marine seismic system
10/30/1990CA1275724C Method and device for measuring vibrational stresses and velocities of waves propagated within formations surrounding a wellbore
10/24/1990EP0393988A2 Borehole acoustic transmitter
10/24/1990EP0393881A2 Seismic pulse generation
10/24/1990EP0393880A2 Seismic pulse generation
10/24/1990EP0393261A1 Method and apparatus for the suppression of bubble oscillations in underwater seismic exploration
10/24/1990EP0393070A1 Bandwidth enhancing seismic acquisition system and method.
10/23/1990US4965778 Helical magnetostrictive core line hydrophone
10/23/1990US4965774 Method and system for vertical seismic profiling by measuring drilling vibrations
10/23/1990US4965773 Method for recording seismic data
10/23/1990CA1275489C External bubble suppression
10/20/1990CA2015054A1 Antibounce device for a solid hitting a target element
10/18/1990WO1990012333A1 Acoustic sub-surface interrogator
10/18/1990WO1990012332A1 Improved method and apparatus for detonation of distributed charges
10/17/1990EP0392106A1 Method for the suppression of bubble oscillations in underwater seismic exploration utilising an internal gas injection
10/16/1990US4964103 Three dimensional before stack depth migration of two dimensional or three dimensional seismic data
10/16/1990US4964102 Method for enhancing and evaluating seismic data
10/16/1990US4964101 Method for determining fluid mobility characteristics of earth formations
10/16/1990US4964099 Method of establishing a stratigraphic model of the subsurface from an acoustic impedance profile and a seismic section
10/16/1990US4964098 Method for seismic trace interpolation
10/16/1990US4964097 Three dimensional image construction using a grid of two dimensional depth sections
10/16/1990US4964096 Method for inversion of seismic data to yield estimates of formation lithology
10/16/1990US4964089 Method for derivation of internal velocities from post-migration parts
10/16/1990US4964088 Method for tomographically laterally varying seismic data velocity estimation
10/16/1990US4964087 Seismic processing and imaging with a drill-bit source
10/16/1990US4964086 Method for characterizing velocity estimates
10/16/1990CA1275320C Vent means for closed air system impact-type seismic source
10/11/1990DE3910906A1 Method for direction forming in the case of a towed acoustic underwater antenna
10/10/1990EP0391809A1 Method and apparatus for seismic prospecting in wells, especially in deviated wells
10/10/1990EP0390987A1 Latching mechanism
10/10/1990CN1009968B Process for detection of heterogeneities and/or for determination of petrophisical charaeteristics
10/10/1990CN1009967B Borehole seismic receiver