Patents
Patents for G01V 1 - Seismology; Seismic or acoustic prospecting or detecting (27,288)
10/1994
10/18/1994CA1332632C Multishot downhole explosive device as a seismic source
10/13/1994WO1994023422A1 Partial beamforming
10/13/1994WO1994023313A1 Hydrophone carrier
10/12/1994EP0619026A1 A method for compensating 3- dmo for the effects of an inhomogeneous earth
10/12/1994EP0454771B1 Method for reducing noise in drill string signals
10/11/1994US5354956 Ultrasonic measurement apparatus
10/05/1994EP0617799A1 Method of seismic migration using a massively parallel computer.
10/04/1994US5353223 Marine navigation method for geophysical exploration
09/1994
09/29/1994WO1994022036A1 Drive assembly for acoustic sources
09/29/1994DE4309599A1 Method and device for detecting an inaminate object having dynamic properties in the ground
09/29/1994CA2158337A1 Drive assembly for acoustic sources
09/28/1994EP0617186A1 Opening and closing method and apparatus for vehicle window
09/27/1994US5351244 Seismic transmission method and device for a very low error rate
09/27/1994US5351218 Method for reconnection and connection of sensor groups
09/21/1994EP0615628A1 Seismic energy source.
09/21/1994EP0596966A4 Time gate ultrasonic sensor and method.
09/20/1994US5349527 Method of seismic time migration using a massively parallel computer
09/20/1994US5348097 Device for carrying out measuring and servicing operations in a well bore, comprising tubing having a rod centered therein, process for assembling the device and use of the device in an oil well
09/20/1994US5348084 Device for carrying out measuring and servicing operations in a well bore and use in an oil well
09/20/1994US5348020 Method and system for near real-time analysis and display of electrocardiographic signals
09/14/1994EP0497814B1 Seismic cable
09/13/1994US5347494 Shaped-sweep technology
09/13/1994US5346400 Sensor rotating apparatus
09/07/1994EP0377017B1 Method for determining the position of seismic streamers in a reflection seismic measuring system
09/07/1994CN1025824C Cleaning apparatus and process
09/06/1994USH1356 Bomb sensor system
09/06/1994US5345522 Reduced noise fiber optic towed array and method of using same
09/01/1994WO1994019774A1 Coin handling apparatus and methods of determining information regarding moving coins
09/01/1994WO1994019707A1 A method for undertaking marine, seismic measurements, as well as a seismic sea-bed cable for carrying out said method
09/01/1994CA2156159A1 A method for undertaking marine, seismic measurements, as well as a seismic sea-bed cable for carrying out said method
08/1994
08/31/1994EP0613025A1 A device and method for positioning of towing systems for use in marine seismic surveys
08/31/1994EP0613024A2 Mechanical sweep frequency vibrator
08/30/1994US5343441 Multisource multireceiver method and system for geophysical exploration
08/30/1994US5343440 Geopressure analysis system
08/30/1994US5343001 Acoustic multi-mode logging device adapted to decouple noise within a semi-rigid receiver array
08/24/1994CA2116302A1 Sweep frequency vibrator
08/23/1994US5341348 Swivel mount for gimbal geophone
08/16/1994US5339288 Underwater sound source with remote controlled actuator
08/16/1994US5339281 Compact deployable acoustic sensor
08/10/1994EP0610123A1 Process for improving the estimated seismic propagation velocity by focussing analysis
08/10/1994EP0609949A1 Process and device for detecting seismic signals
08/10/1994EP0609206A1 Borehole digital geophone tool.
08/09/1994US5337234 Self-contained downhole gauge system
08/03/1994EP0448680B1 Directional sensor for terrestrial sound
08/02/1994US5335208 Method for conducting multiple natural frequency seismic surveys
07/1994
07/21/1994WO1994016344A1 Multi-vessel timing synchronization method and device
07/21/1994WO1994016343A1 Method of seismic exploration
07/21/1994WO1994012896A3 High frequency retention seismic survey method
07/20/1994EP0471724B1 Seismic source
07/20/1994CN1089684A Method for detecting earthquake by use of drill on bottom of well
07/19/1994US5331607 Sweep frequency vibrator
07/19/1994US5331604 Methods and apparatus for discrete-frequency tube-wave logging of boreholes
07/19/1994US5331603 Magnetic heading sensor alignment and roll reducing device
07/19/1994US5331318 Communications protocol for digital telemetry system
07/19/1994CA2009655C Integrating multiple mappable variables for oil and gas exploration
07/13/1994CN2171675Y Sound wave cement grouting well logging ground instrument
07/12/1994US5329071 Method and device for operation of equipment installed in marine seismic tows
07/06/1994EP0604866A2 Telemetry system
07/06/1994CN1025368C Method and apparatus for performing acoustic investigations in borehole
07/05/1994US5327399 Multivibrator waveform monitoring system
07/05/1994US5327216 Apparatus for remote seismic sensing of array signals using side-by-side retroreflectors
07/05/1994CA1330586C Method and apparatus for performing acoustic investigations in a borehole
06/1994
06/28/1994CA2002468C Method of determining the depth of a hydraulic fracture zone in the earth
06/23/1994WO1994014086A1 Removable piston bore liner for hydraulically actuated seismic vibrator
06/22/1994EP0603023A1 Process for marine seismic prospecting
06/22/1994EP0602703A2 Method for improving signal to noise ratio
06/22/1994EP0602152A1 A device for securing two or more seismic energy sources at fixed relative positions.
06/21/1994US5323133 Method and apparatus for making electrical connection with a movable member
06/16/1994DE4241627A1 Shear wave coupling using freezing for investigating soft ground - involves freezing technique, torsion stimulators and tubular rods
06/15/1994CN2169143Y 地震报警器 Earthquake Alarm
06/14/1994US5321668 Hydroacoustic ranging method using bottom reflections
06/14/1994US5321213 Downhole epicyclic motion orbital seismic source
06/14/1994CA1330235C Method for processing seismic data
06/09/1994WO1994012896A2 High frequency retention seismic survey method
06/09/1994WO1994012895A1 Method and device for the detection of structural changes in solid bodies
06/09/1994CA2128422A1 High frequency retention seismic survey method
06/08/1994EP0600555A1 Seismic source
06/08/1994EP0600242A2 Linear array lateral motion compensation method
06/07/1994US5319609 Acoustic emission system for seismic surveying at sea
06/07/1994US5319554 Method for data interpolation and signal enhancement
06/03/1994CA2110306A1 Seismic source
05/1994
05/31/1994US5317383 Array retroreflector apparatus for remote seismic sensing
05/31/1994US5317111 Ultrasonic measurement apparatus
05/31/1994US5315917 Monoport airgun for seismic exploration having discharge port extending continuously for 360 degree around its axis
05/26/1994WO1994011756A1 Multi-dimensional signal processing and display
05/26/1994WO1994010905A1 A method and system for near real-time analysis and display of electrocardiographic signals
05/26/1994CA2149671A1 Multi-dimensional signal processing and display
05/26/1994CA2149670A1 A method and system for near real-time analysis and display of electrocardiographic signals
05/25/1994EP0462149B1 Acoustic detection apparatus
05/24/1994US5315074 Method and apparatus for implanting geophones into the earth
05/18/1994EP0596966A1 Time gate ultrasonic sensor and method
05/18/1994CN2165458Y Multi-light-path shock sensor
05/17/1994US5313025 For use in a well borehole
05/17/1994US5311856 Gas gun and quick release mechanism for large loads
05/17/1994CA1329647C Method for identifying anomalous noise amplitudes in seismic data
05/11/1994WO1994010587A1 Borehole logging tool
05/11/1994WO1994010586A1 A method for compensating 3- dmo for the effects of an inhomogeneous earth
05/11/1994WO1994010585A1 A method for determining the far-field signature of a marine seismic source array
05/11/1994WO1994010584A1 Method for estimating the position of acoustic reflectors in a medium
05/11/1994EP0596803A1 Method and device for attenuating surface noise, and obtained record