Patents
Patents for G01V 1 - Seismology; Seismic or acoustic prospecting or detecting (27,288)
02/1992
02/20/1992WO1992002833A1 A method for deconvolution of non-ideal frequency response of pipe structures to acoustic signals
02/19/1992CN1058847A Earthquake alarm method and lamps
02/18/1992US5089995 Switching system for the acquisition of seismic data
02/18/1992US5089994 Tomographic estimation of seismic transmission velocities from constant offset depth migrations
02/18/1992US5089989 Method and apparatus for measuring the quality of a cement to a casing bond
02/18/1992US5089668 Towable buoyant streamer for data bearer
02/18/1992CA1296090C Method, system and apparatus for producing powerful seismic energy impulses by implosion useable in wells in the earth
02/15/1992CA2045375A1 Seismic device
02/11/1992CA1295726C Method and device for resetting data (particularly seismic data) acquisition equipments
02/11/1992CA1295725C Method and system for measuring azimuthal anisotropy effects using acoustic multipole transducers
02/06/1992WO1992002054A1 Piezoelectric transducer for high speed data transmission and method of operation
02/06/1992WO1992001955A1 Torsional force transducer and method of operation
02/06/1992WO1992001494A1 Apparatus for detecting the impact of a golf ball
02/05/1992EP0468984A1 Device for generating elastic waves in a body and for seismic prospecting
02/04/1992US5086415 Method for determining source region of volcanic tremor
02/04/1992US5086339 Videosystem for determining position of colored areas
02/01/1992WO1992002926A1 Zebra mussel (dreissena polymorpha) and other aquatic organism control
01/1992
01/30/1992DE4022325A1 Acoustic separation transport monitoring system - automatically adjusts measurement or frequency range to thickness of paper sheet in paper or printing industry
01/29/1992EP0468809A2 Method and apparatus for detecting location of a subterranean pipe
01/29/1992EP0468547A2 Active vibration isolation system
01/29/1992CN2094752U Engineering earthquake geology test instrument
01/29/1992CN2094751U Automatic earthquake alarm device
01/28/1992US5084844 Efficient method for storing seismic traces on disk
01/28/1992CA1295043C Method for acoustic reverberation removal
01/28/1992CA1294894C Acoustic transducer for a borehole logging tool
01/22/1992CN1058101A Method for acquisition of seismic data at sea
01/21/1992US5083297 Method of improving the seismic resolution of geologic structures
01/15/1992CN2093404U Low velocity zone seismograph
01/14/1992US5081612 Methods for estimating the burial conditions of sedimentary material
01/14/1992US5081611 Methods for determining formation and borehole parameters via two-dimensional tomographic reconstruction of formation slowness
01/14/1992US5080190 Reversible rigid coupling apparatus and method for borehole seismic transducers
01/14/1992US5080189 Electro-hydraulic dipole vibrator
01/14/1992CA1294358C Baseplate assembly for seismic wave generator
01/13/1992WO1992001358A1 Human-portable geophysical energy source
01/08/1992EP0464587A2 Method of layer stripping to predict subsurface stress regimes
01/08/1992EP0464212A1 Earthquake detecting apparatus
01/07/1992US5079749 Seismic raytracing method and apparatus
01/07/1992US5079703 3-dimensional migration of irregular grids of 2-dimensional seismic data
01/07/1992US5079463 Flywheel method of generating SH waves
01/07/1992US5078172 Seismic actuator
01/07/1992CA1294031C Device for seismic exploration
01/07/1992CA1294029C Method of seismic prospecting with very high resolution in horizontal boreholes
01/07/1992CA1294028C Transducer forming compression and shear waves for use in acoustic well logging
01/03/1992WO1992000530A1 Passive acoustic aquatic animal finder apparatus and method
01/03/1992CA2086611A1 Passive acoustic aquatic animal finder apparatus and method
01/02/1992EP0463604A2 Method of layer stripping to determine fault plane stress build-up
01/02/1992EP0463253A1 Method for migrating seismic data
12/1991
12/31/1991US5077698 Method and device for the high-rate transmission of data following a quasi-asynchronous mode
12/31/1991US5077697 Discrete-frequency multipole sonic logging methods and apparatus
12/31/1991US5077696 Floating sensor to detect very low frequency pressure signals
12/30/1991CA2044877A1 Method for monitoring real-time hydraulic fracture propagation
12/27/1991EP0462149A1 Acoustic detection apparatus.
12/26/1991WO1992000532A1 Method for attribute tracking in seismic data
12/25/1991CN1015209B Improved method for estimating shear wave reflecting data from acquired compressional wave reflection data
12/25/1991CN1015208B Gun and shell for generating earth quake focus in shallow layer
12/24/1991US5075857 Unmanned compliance monitoring device
12/24/1991CA1293556C Downhole electromagnetic seismic source
12/20/1991CA2044871A1 Method for determining dip and strike angles in borehole tv data
12/18/1991CN1057112A Method for measuring, analysing, and judging stratum structure
12/18/1991CN1057110A Method of and apparatus for ultrasonic identification of materials and equipment
12/17/1991US5073877 For use in a pipe string having a bore suspended in a well
12/17/1991US5073876 Geophysical exploration using near surface structure corrections developed from common endpoint gather stacked traces
12/17/1991US5073875 Method of enhancing geophysical data
12/11/1991EP0460789A1 Position-independent vertically sensitive seismometer
12/11/1991EP0460733A1 A method of and an apparatus for the ultrasonic identification of materials and equipment
12/11/1991EP0460503A2 An acoustic alert sensor
12/11/1991EP0263149B1 Nondestructive downhole seismic vibrator source and processes of utilizing the vibrator to obtain information about geologic formations
12/10/1991US5072388 Lined casing inspection method
12/10/1991CA1293045C Simultaneous vertical-seismic profiling and surface seismic acquisitionmethod
12/09/1991CA2041739A1 Acoustic alert sensor
12/05/1991CA2043744A1 Method of and an apparatus for the ultrasonic identification of materials and equipment
12/04/1991EP0458947A1 Method and device for acquiring seismic data in a weill in two opposite directions.
12/04/1991CN2090067U Household computer earthquake alarm instrument
12/03/1991US5070483 Remote seismic sensing
12/03/1991US5069308 Low impedance down-hole acoustic source for well logging
12/03/1991US5069307 Acoustic signal transmitter for logging tools
11/1991
11/28/1991DE4016038A1 Vibrator producing seismic energy - contains heavy reaction wt. movable by hydraulic piston and divided working cylinder
11/27/1991CN2089636U 简易地震报警器 Easy earthquake alarm
11/26/1991CA2043249A1 Seismic surveying
11/23/1991WO1991018302A1 A method for acquisition of seismic data at sea
11/21/1991EP0457650A2 Ultrasonic measurement apparatus and method for boreholes
11/21/1991EP0457644A1 Borehole receiver system for acoustic waves with mechanical decoupling of the sensors
11/19/1991US5067113 Efficient generation of traveltime tables for two dimensional and three dimensional prestack depth migration
11/19/1991US5067112 Method for removing coherent noise from seismic data through f-x filtering
11/13/1991CN2088700U Earthquake alarm lighting device
11/13/1991CN1056171A Detecting method for seismic prospecting hydrocarbons
11/12/1991US5065372 Sonar transducer with explosive shock protector
11/06/1991EP0455091A2 Methods for measurement, analysis and assessment of ground structure
11/06/1991CN1014643B Marine seismic data acquisition system and method
11/06/1991CN1014642B Semi-sequential transmission method and system for transmitting seismic signals
11/05/1991US5063542 Piezoelectric transducer with displacement amplifier
10/1991
10/31/1991WO1991016642A1 Methods and apparatus for discrete-frequency tube-wave logging of boreholes
10/31/1991WO1991016641A1 Discrete-frequency multipole sonic logging methods and apparatus
10/29/1991US5062089 Sonar projector with liquid mass loading for operation at lower frequency
10/29/1991US5062086 Calculation of raypaths and wavepaths from traveltime tables for the tomographic estimation of transmission velocities
10/29/1991US5062085 Vibration isolation module for towed seismic arrays
10/29/1991US5062084 Borehole digital geophone tool
10/29/1991US5062061 Automatic direction control for omni-directional shear wave sources
10/29/1991US5060751 Pneumatic wall-locking geophone system
10/22/1991US5060206 Marine acoustic aerobuoy and method of operation