| Patents for G01V 1 - Seismology; Seismic or acoustic prospecting or detecting (27,288) |
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| 07/25/1989 | US4852004 Method and apparatus for processing seismographic data by correlation |
| 07/25/1989 | US4850451 Device for generating in the ground both transverse and longitudinal acoustic waves in a plurality of different directions |
| 07/25/1989 | US4850450 Logging tool housing with acoustic delay |
| 07/25/1989 | US4850449 Piezoelectric seismic vibration device and method |
| 07/19/1989 | CN1034106A Tubular piezo-electric sensor with high sensitivity |
| 07/19/1989 | CN1034068A Method for geophysical exploration |
| 07/18/1989 | US4849947 Acoustic ground vibration detector |
| 07/18/1989 | US4849946 Piezo-electric transducer comprising several coaxial sensitive elements |
| 07/18/1989 | US4849945 Seismic processing and imaging with a drill-bit source |
| 07/18/1989 | US4849887 Horizon velocity analysis |
| 07/18/1989 | US4848906 Multiplexed fiber optic sensor |
| 07/18/1989 | US4848512 Vibratory seismic source |
| 07/18/1989 | US4848003 Positioning device |
| 07/12/1989 | EP0323687A1 Method of measuring, analysing, predicting and controlling vibrations induced by explosive blasting in earth formations |
| 07/12/1989 | CN1004771B Geophone spring |
| 07/12/1989 | CN1004770B Geophone spring |
| 07/11/1989 | US4847814 Three-dimensional borehole televiewer display |
| 07/11/1989 | US4847813 Method for extending the lateral subsurface coverage in VSP surveys |
| 07/11/1989 | US4845990 Ultrasonic mine survey probe |
| 07/05/1989 | EP0323305A1 High-sensitivity tubular piezo-electric sensor |
| 07/05/1989 | EP0322501A1 Transducer |
| 07/04/1989 | USH656 Method and system for controlling the moments of firing of marine seismic sources |
| 07/04/1989 | US4845686 Method and device for determining the position of immersed objects with respect to the ship which tows them |
| 07/04/1989 | US4845616 Method for extracting acoustic velocities in a well borehole |
| 07/04/1989 | CA1256976A1 Self-diagnostic ultrasonic intrusion detection system |
| 07/04/1989 | CA1256975A1 Geophysical exploration by interpretation of variations in seismic amplitudes |
| 06/28/1989 | EP0321705A2 Method for obtaining seismic data |
| 06/28/1989 | CN1004651B String-frequency type drilling strain gauge |
| 06/27/1989 | US4843599 Method for continuous color mapping of seismic data |
| 06/27/1989 | US4843598 Method of shear wave porosity logging of a subsurface formation surrounding a cased well |
| 06/27/1989 | US4843597 System for marine seismic exploration |
| 06/27/1989 | US4842094 Rotatable horizontal vibrator |
| 06/27/1989 | CA1256552A1 Streamer cable with protective sheaths for conductor bundle |
| 06/21/1989 | EP0321146A2 Apparatus and method for sensing acoustic reflections |
| 06/20/1989 | US4841494 Underwater piezoelectric arrangement |
| 06/20/1989 | US4841490 Inversion of a vertical seismic profile by minimization of an entropy like function |
| 06/20/1989 | US4841444 Method for continuous estimation by non-linear signal matching of seismic traces |
| 06/20/1989 | CA1256209A1 Self-contained downhole guage system |
| 06/20/1989 | CA1256194A1 Method of three-component reflection seismology |
| 06/20/1989 | CA1256193A1 Methods for attenuation of horizontally traveling seismic noise waves |
| 06/20/1989 | CA1256192A1 Method for segregating and stacking vertical seismic profile data |
| 06/20/1989 | CA1256191A1 Methods of determining lithological characteristics of an underground formation which utilize compressional velocity |
| 06/14/1989 | EP0320466A2 Echographic technique-based apparatus to detect structure and anomalies of the subsoil and/or sea bottom and the like |
| 06/14/1989 | EP0320073A2 Air gun array |
| 06/14/1989 | EP0319716A2 Method for obtaining seismic data |
| 06/14/1989 | CN1033405A Method for determining the dip and direction of formation fracture intersecting borehole |
| 06/13/1989 | US4839872 Geophone with a sensitive element made of piezoelectric polymer |
| 06/13/1989 | US4839869 Methods for processing converted wave seismic data |
| 06/13/1989 | US4838379 Geophone implanting and positioning apparatus |
| 06/13/1989 | CA1255783A1 Instantaneous acoustic logging in a borehole |
| 06/07/1989 | EP0319413A1 Method of generating a lithological cross-section |
| 06/07/1989 | EP0319117A2 A method for determining the dip and direction of a formation fracture intersecting a borehole |
| 06/07/1989 | EP0199749B1 Device for producing shear waves in a solid medium |
| 06/07/1989 | CN1033323A Bandwidth enhancing seismic acquistion system and method |
| 06/06/1989 | US4837753 Method and apparatus for logging a borehole |
| 06/06/1989 | US4837752 Method for establishing a common bandwidth for processing seismic data obtained from different sources, recording equipment and surveys |
| 06/06/1989 | US4837751 Shielded hydrophone assembly |
| 06/06/1989 | US4837723 Method and apparatus for continuous time-variant digital filtering |
| 06/06/1989 | US4837582 Method and apparatus for detecting electromagnetic waves generated by the earth's crust under strain |
| 06/06/1989 | CA1255384A1 Seismic data processing method |
| 06/06/1989 | CA1255140A1 Airgun having shaft-bearing-guided shuttle and capable of fast repetition self-firing |
| 05/31/1989 | CN2038620U High blasting-speed powder column used for shaping purpose |
| 05/30/1989 | US4835745 Method of radial seismic data collection for improved salt structure imaging |
| 05/30/1989 | US4835744 Marine seismic data acquisition system and method |
| 05/30/1989 | US4835435 Simple, sensitive, frequency-tuned drop detector |
| 05/30/1989 | US4834210 Apparatus for generating seismic waves |
| 05/30/1989 | US4834209 Transverse wave logger |
| 05/30/1989 | CA1254992A1 Method for attenuating multiples in cdp data gathers |
| 05/30/1989 | CA1254991A1 Multisource multireceiver method and system for geophysical exploration |
| 05/24/1989 | EP0317386A2 Improved logging tool housing with acoustic delay |
| 05/24/1989 | EP0317385A2 Method and apparatus for detecting acoustic vibrations in a well |
| 05/24/1989 | EP0317288A2 Method for extending the lateral subsurface coverage in vertical seismic profiling surveys |
| 05/24/1989 | EP0317162A2 Seismic sound source |
| 05/24/1989 | EP0316317A1 Seismic processing apparatus. |
| 05/24/1989 | CN2038248U Small-size geophone |
| 05/24/1989 | CN2038150U Logarithm proportion and dotted line recording device for well logging |
| 05/24/1989 | CN1033113A Improved method for estimating shear wave reflection data from acquired compressional wave reflection data |
| 05/23/1989 | US4833658 Method of seismic prospecting with very high resolution in horizontal boreholes |
| 05/23/1989 | US4833453 Monitoring of movable components |
| 05/23/1989 | US4832148 Method and system for measuring azimuthal anisotropy effects using acoustic multipole transducers |
| 05/23/1989 | CA1254648A1 Derive for imparting radial stress pulses on a well bore |
| 05/18/1989 | WO1989004500A1 Arrangement for short-term earthquake prediction |
| 05/16/1989 | US4831600 Borehole logging method for fracture detection and evaluation |
| 05/16/1989 | US4831599 Float for use in seismic surveys of the sea bed |
| 05/16/1989 | US4831530 Method for determining in-situ formation properties |
| 05/16/1989 | CA1254297A1 F-k filtering of multiple reflections from a seismic section |
| 05/16/1989 | CA1254296A1 Seismic generator |
| 05/11/1989 | DE3736873A1 Anordnung zur kurzfristigen vorhersage von erdbeben Arrangement for short-term prediction of earthquake |
| 05/10/1989 | EP0315546A1 Device for determining the point at which a vehicle crosses a boundary |
| 05/09/1989 | US4829489 Method of determining drill string velocity |
| 05/09/1989 | US4829488 Drive mechanism for borehole televiewer |
| 05/09/1989 | US4829487 Method for restoring seismic data using cross-correlation |
| 05/09/1989 | US4829486 Transmitting multiple borehole parameters in sonic logging |
| 05/09/1989 | CA1253955A1 Apparatus for failure prediction of earth structures |
| 05/09/1989 | CA1253954A1 Transducer system for use with borehole televiewer logging tool |
| 05/03/1989 | EP0313903A2 Method for detecting the presence of insects and/or their larvae in solid material, in particular wood |
| 05/03/1989 | EP0175737B1 Finding the direction of a sound |
| 05/02/1989 | US4827456 Method and device for determining the remote emission signature of a seismic emission assembly |
| 05/02/1989 | CA1253613A1 Geophone apparatus and a seismic exploration method |
| 04/26/1989 | EP0313459A1 Process and device for seismic data acquisition |