| Patents for G01V 1 - Seismology; Seismic or acoustic prospecting or detecting (27,288) |
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| 02/21/1990 | CN1039869A Modal transmission method and apparatus for multi-conductor wireline cables |
| 02/20/1990 | US4903244 Multisource multireceiver method and system for geophysical exploration |
| 02/14/1990 | EP0354813A2 Seismic data processing |
| 02/14/1990 | CN1039689A Acquisition device for digitizing high dynamic signals |
| 02/13/1990 | US4901292 Method for the position detection of the strip edge of a material web |
| 02/13/1990 | US4901289 System for acquiring and recording signals delivered by a set of sensors disposed in well probes |
| 02/13/1990 | US4901287 Underwater sonar array |
| 02/13/1990 | US4899845 Echographic technique-based method and apparatus to detect structure and anomalies of the subsoil and/or sea bottom and the like |
| 02/13/1990 | US4899844 Acoustical well logging method and apparatus |
| 02/07/1990 | EP0354112A1 Method for obtaining a model representative of a heterogeneous medium, in particular of the sub-soil |
| 02/07/1990 | CN1039517A Piezoelectric sensor comprising at least one pair of flexible sensitive elements of great length |
| 02/06/1990 | US4899321 Method and apparatus for determining the source signature of land vibrators |
| 02/06/1990 | US4899319 Method for determining induced fracture azimuth in formations surrounding a cased well |
| 02/06/1990 | US4899144 Method of transmitting ultrasonic amplitude & time travel information over a logging cable |
| 02/06/1990 | US4898237 Probe and its multidirectional anchoring device in a well |
| 01/31/1990 | EP0352869A2 Modal transmission method and apparatus for multi-conductor wireline cables |
| 01/30/1990 | US4897821 Method and device for initializing data, and particularly seismic data, acquisition apparatus |
| 01/30/1990 | CA1265249A1 Processing of oriented patterns |
| 01/30/1990 | CA1265212A1 Method and apparatus for continuous time-variant digital filtering |
| 01/25/1990 | WO1990000730A1 Acoustic field transducers |
| 01/23/1990 | US4896303 Method for cementation evaluation using acoustical coupling and attenuation |
| 01/23/1990 | US4895218 Multishot downhole explosive device as a seismic source |
| 01/23/1990 | US4895025 Destructive insect induced vibration detector |
| 01/17/1990 | EP0351285A1 Piezo electric detector with at least two long, sensitive, supple elements |
| 01/16/1990 | US4894809 Method for bin, moveout correction and stack of offset vertical seismic profile data in media with dip |
| 01/16/1990 | US4894808 Flow noise reduction |
| 01/16/1990 | US4894807 Simultaneous vertical-seismic profiling and surface seismic acquisition method |
| 01/16/1990 | US4893930 Multiple axis, fiber optic interferometric seismic sensor |
| 01/16/1990 | US4893694 VSP-based method and apparatus for tieing seismic data shot using different types of seismic sources |
| 01/10/1990 | CN1006439B X-ray image pickup device |
| 01/09/1990 | US4893290 For detecting seismic signals along orthogonal axes |
| 01/09/1990 | US4893289 Production of directionally limited acoustic power spectra |
| 01/09/1990 | US4893285 Method and apparatus for cement bond tool |
| 01/09/1990 | US4892373 Sign bit optical geophone |
| 01/09/1990 | CA1264371A1 Flexible piezoelectric transducer assembly |
| 01/09/1990 | CA1264370A1 Method and apparatus for generating low frequency acoustic energy waves |
| 01/03/1990 | EP0349262A2 Method for reducing drill string multiples in field signals |
| 01/03/1990 | CN1038489A Method of using acoustic wave to evaluate cement-bond well quality in all its aspests |
| 01/02/1990 | US4891628 Environmental matter detection system |
| 01/02/1990 | US4890687 Borehole acoustic transmitter |
| 12/27/1989 | CN2050174U 地震电磁信息接收机 Seismic electromagnetic information receiver |
| 12/26/1989 | US4890264 Seismic exploration method and apparatus for cancelling non-uniformly distributed noise |
| 12/20/1989 | EP0347295A1 A method of establishing a stratigraphic model of the subsurface from an acoustic impedance profile and a seismic section |
| 12/20/1989 | EP0347019A2 Simultaneous vertical-seismic profiling and surface seismic acquisition method |
| 12/19/1989 | US4888745 Apparatus for marking individual points of an underwater construction |
| 12/19/1989 | US4888743 Method of seismic surveying for resolving the effects of formation anisotropy in shear wave reflection seismic data |
| 12/19/1989 | US4888742 Method of migrating seismic data |
| 12/19/1989 | US4888740 Differential energy acoustic measurements of formation characteristic |
| 12/14/1989 | WO1989012236A1 Method for determining the position of seismic streamers in a reflection seismic measuring system |
| 12/12/1989 | US4887244 Method for seismic trace interpolation using a forward and backward application of wave equation datuming |
| 12/12/1989 | US4887243 Removal of surface multiples |
| 12/06/1989 | EP0344933A2 Method of determining drill string velocity |
| 12/05/1989 | US4885727 Automatic resetting of seismic water sound source |
| 12/05/1989 | US4885726 Compound hydraulic seismic source vibrator |
| 12/05/1989 | US4885724 Cableless seismic digital field recorder having on-site seismic data processing capabilities |
| 12/05/1989 | US4885723 Acoustic apparatus and method for detecting borehole wall discontinuities such as vertical fractures |
| 12/05/1989 | US4885722 Method for removing low-frequency noise from records with data impulse |
| 12/05/1989 | US4885711 Removing noise from seismic data |
| 12/05/1989 | US4884412 Compressor slugging protection device and method therefor |
| 11/30/1989 | WO1989011665A1 Seismic wave generating apparatus |
| 11/30/1989 | WO1989011581A1 Method and device for exciting a well during oil extraction |
| 11/29/1989 | CN1005899B Electrohydraulic servo vibration exciting installation |
| 11/28/1989 | US4884249 Marine streamer for use in seismic surveys |
| 11/28/1989 | US4884248 Method of restoring seismic data |
| 11/28/1989 | US4884247 Method of processing geophysical data to compensate for earth filter attenuation |
| 11/28/1989 | US4884030 Method and system for acquisition and separation of the effects of electromagnetic fields to predict earthquakes |
| 11/28/1989 | CA1263471A1 Memorisation control of data in a seismic exploration recording system |
| 11/28/1989 | CA1263470A1 Broadband interdependent marine seismic source array and method |
| 11/21/1989 | US4882716 Optic fiber hydrophone and antenna associating a series of hydrophones |
| 11/21/1989 | US4882713 Method for noise suppression in the stacking of seismic traces |
| 11/21/1989 | CA1263188A1 Device for amplifying and sampling highly dynamic signals |
| 11/15/1989 | CN2047791U Early stage alarm bell for earthquake |
| 11/15/1989 | CN2047790U Suspended eddy-current-type geophone |
| 11/14/1989 | US4881211 Multiple frequency range hydraulic actuator |
| 11/14/1989 | US4881209 Method of processing converted mode seismic data |
| 11/14/1989 | US4881208 Acoustic well logging method and apparatus |
| 11/14/1989 | US4881207 Seismic prospection method providing improved knowledge of the geological discontinuities of the subsoil |
| 11/09/1989 | DE3248459A1 Acoustic underwater antenna |
| 11/08/1989 | EP0227710B1 Device for the hydrodynamic generation of acoustic pulses in a liquid volume |
| 11/07/1989 | US4879719 Latching mechanism |
| 11/07/1989 | US4879696 Method and apparatus for initiating seismic data storage in an isolated distributed recording system |
| 11/07/1989 | CA1262772A1 Debris ejector for a seismic vibrator |
| 11/02/1989 | WO1989010572A1 Acoustic data transmission through a drill string |
| 10/31/1989 | US4878205 Method of analyzing the structure of a medium, particularly useful for seismic prospecting |
| 10/31/1989 | US4878204 Method for true-amplitude dip moveout correction |
| 10/24/1989 | US4876675 Towed piezoelectric cable |
| 10/24/1989 | US4876673 Display of common depth point seismic data with velocity correction in real time |
| 10/24/1989 | US4876672 Ultrasonic logging tool with rotating exposed transducer |
| 10/24/1989 | US4875545 External bubble-suppression method and apparatus |
| 10/24/1989 | US4875544 Transducer for inducing seismic signals into an elastic medium |
| 10/24/1989 | CA1262487A1 Seismic exploration process using vehicles going in opposite directions |
| 10/18/1989 | CN2046228U 地震报警触发装置 Earthquake alarm triggering device |
| 10/17/1989 | US4875197 Method and apparatus for determining propagation velocities of elastic waves in a borehole |
| 10/17/1989 | US4875166 Bandwidth enhancing seismic acquisition system and method |
| 10/17/1989 | US4874061 Downhole orbital seismic source |
| 10/17/1989 | US4874060 Device for receiving sound waves in a well |
| 10/10/1989 | US4873675 Method and apparatus for seismic exploration of strata surrounding a borehole |
| 10/10/1989 | US4872526 Sonic well logging tool longitudinal wave attenuator |
| 10/10/1989 | CA1262278A1 Mounting and control means for full waveform seismic source |
| 10/10/1989 | CA1262277A1 Ultrasonic sensor for the detection of gas bubbles |