Patents
Patents for G01V 1 - Seismology; Seismic or acoustic prospecting or detecting (27,288)
03/1984
03/20/1984US4438292 Waterproof housing assembly for geophones
03/20/1984CA1164082A1 Apparatus and method for geophone sensor string placement
03/14/1984EP0102545A2 Geophysical data recording method
03/13/1984US4437176 Method of optimizing signal-to-noise ratio in seismic exploration
03/13/1984US4437175 Marine seismic system
03/13/1984US4435977 Method for locating low resistivity pay sands using well logs
03/13/1984CA1163703A1 Digital acoustic logging method and apparatus
03/06/1984US4434654 Borehole orientation detection system employing polarized radiation
03/06/1984CA1163353A1 Method of reducing monochromatic interference in continuous wave seismic prospecting
03/06/1984CA1163352A1 Tunable marine seismic source
03/06/1984CA1163351A1 Method for marine seismic exploration
02/1984
02/28/1984US4433736 Device for avoiding secondary impacts resulting from the bounces of a mass against a target-member
02/22/1984EP0101331A2 Apparatus for exciting acoustic wave generation in the soil
02/22/1984EP0101281A2 Underwater seismic testing
02/21/1984US4432299 Impulse noise generator
02/21/1984CA1162636A1 Transducer for picking up mechanical vibrations, in particular seismic waves, and a seismic measuring system including such a transducer
02/21/1984CA1162635A1 Seismic exploration using vibratory sources, sign-bit recording, and processing that maximizes the obtained subsurface information
02/21/1984CA1162634A1 Mobile high frequency vibrator system
02/21/1984CA1162633A1 Acoustic well logging with energy level detection
02/15/1984EP0100728A2 Fracture detection using circumferential offset acoustic paths
02/15/1984EP0100708A2 Method and device for seismic signal acquisition in a bore hole
02/14/1984US4432078 Method and apparatus for fracturing a deep borehole and determining the fracture azimuth
02/14/1984US4432077 Determination of formation permeability from a long-spaced acoustic log
02/07/1984CA1161939A1 Three-dimensional seismic data gathering method
02/01/1984EP0099764A1 Method and system for analyzing discontinuities in reasonably homogeneous medium
02/01/1984EP0099643A2 Sonar systems comprising high damping polymer compositions
01/1984
01/31/1984CA1161540A1 Process and an apparatus for seismic geophysics with processing by focuses
01/31/1984CA1161539A1 Seismographic method and apparatus
01/24/1984US4428072 Seismic well log display method and apparatus
01/24/1984US4427091 Fail-safe circuit mechanism for generating a pulse indicating the precise moment of firing of a gas exhausting gun
01/24/1984CA1161151A1 Swept energy source acoustic logging system
01/24/1984CA1161150A1 Seismic cable connector with optical transceiver
01/19/1984WO1984000215A1 Scaling of sound source signatures in underwater seismic exploration
01/18/1984EP0098778A2 Method and apparatus for cement bond logging
01/17/1984US4426624 Device and method for amplifying and sampling multiplexed signals
01/17/1984CA1160729A1 Recoil reducing system for gas guns
01/17/1984CA1160726A1 Device for amplifying and sampling multiplex signals
01/11/1984EP0098017A2 End weighted reed sound transducer
01/10/1984CA1160334A1 Seismic method and system of improved resolution and discrimination
01/10/1984CA1160285A1 Logging sonde housing and manufacturing method
01/03/1984CA1159944A1 Method and apparatus for acoustic well logging
12/1983
12/27/1983CA1159547A1 Acoustic pulse generator
12/20/1983US4422165 Maximum likelihood estimation of the ratio of the velocities of compressional and shear waves
12/20/1983US4422164 On-bottom seismometer electronic system
12/20/1983US4421198 Variable frequency vacuum actuated seismic energy source
12/20/1983US4421049 Submerged device, carrying oceanography apparatuses, with automatic depth control
12/20/1983CA1159138A1 Seismic transducer baseplate and housing assembly
12/20/1983CA1159137A1 Device for transmitting data between seismic data acquisition devices and a recording device
12/13/1983US4419933 Apparatus and method for selectively activating plural electrical loads at predetermined relative times
12/13/1983CA1158760A1 Seismic streamer connector assembly
12/08/1983WO1983004337A1 Data synchronization
12/06/1983US4419748 Continuous wave sonic logging
12/06/1983US4418786 Bottom diaphragm for transporter for a seismic energy source
12/06/1983US4418721 Fluidic valve and pulsing device
11/1983
11/29/1983CA1157934A1 Determination of far fields signatures, for instance of seismic sources
11/16/1983EP0093767A1 Method for determining source and receiver statics in marine seismic exploration.
11/15/1983US4415999 Method of confirming seismic data interpretation
11/15/1983US4415998 Segmented acoustic transmitter for broad frequency investigation of a borehole
11/15/1983US4415997 Method for determining source and receiver statics in marine seismic exploration
11/15/1983CA1157139A1 Seismic exploration system using pressure and velocity detectors
11/15/1983CA1157138A1 Seismographic method and apparatus
11/08/1983US4414651 Integrated well logging system and method
11/08/1983CA1156733A1 Programmable seismic type electrical cable
11/02/1983EP0092934A2 Method for enhancing recorded marine seismic reflection signals having undulating water bottom distortions
10/1983
10/25/1983US4412317 Transducer for picking up mechanical vibrations, in particular seismic waves, and a seismic measuring system including such a transducer
10/25/1983CA1155689A1 Borehole charging method
10/18/1983US4410062 Tuned vibrator with a compliant connection to the base plate
10/18/1983US4409897 Apparatus & method for selectively activating plural electrical loads at predetermined relative times
10/18/1983US4409842 Structural information detector
10/18/1983CA1155537A1 Internal air release control apparatus air gun
10/18/1983CA1155536A1 Method and apparatus for seismic geophysical exploration
10/11/1983US4408677 Method and apparatus for the production of seismic shocks
10/11/1983US4408676 Gas gun assembly
10/11/1983CA1155213A1 Real-time monitor for marine seismic exploration system
10/11/1983CA1155183A1 Signal detecting circuit
10/04/1983US4408307 Optical transmission of digital seismic data
10/04/1983US4408196 Seismic alarm system
09/1983
09/28/1983EP0089892A2 Method and apparatus for investigating stand-off in a borehole
09/28/1983EP0089700A2 Marine seismic method and system
09/28/1983EP0089431A1 Apparatus for and a method of acoustic well logging
09/27/1983US4406345 Seismic transducer baseplate and housing assembly
09/20/1983US4405999 Method for collecting and generating composite trace signals with improved signal to noise ratios
09/20/1983US4405036 Seafloor velocity and amplitude measurement apparatus method
09/20/1983US4405033 Fail-safe methods for generating a pulse indicating the precise moment of firing of a gas exhausting gun
09/20/1983CA1154139A1 Electro-acoustic device for the underwater signalling and identification of vessel
09/13/1983US4404664 System for laterally positioning a towed marine cable and method of using same
09/13/1983CA1153816A1 Means for marine seismic exploration and method of operating such means
09/13/1983CA1153815A1 Apparatus and method for determining velocity of acoustic waves in earth formations
09/06/1983US4403313 Process and an apparatus for seismic geophysics with processing by focuses
09/06/1983US4403312 Three-dimensional seismic data gathering method
09/06/1983US4403290 Machine method for determining the presence and location of hydrocarbon deposits within a subsurface earth formation
09/06/1983US4402382 Air gun fire time sensor
09/06/1983US4402381 Vehicle mounting and deployment arrangement for seismic source
09/06/1983CA1153457A1 Precorrelation filtering
09/06/1983CA1153456A1 Seismic method of mapping horizontal fractures in the earth
08/1983
08/30/1983US4402069 Acoustic envelope having minimal vibration and flow induced noises
08/30/1983US4402068 Method and apparatus for acoustic well logging
08/23/1983US4399692 Borehole survey apparatus utilizing accelerometers and probe joint measurements
08/23/1983CA1152628A1 Method for determining the extent of subsurface reaction involving acoustic signals
08/17/1983EP0085989A2 Downhole instrument and methods of manufacturing and using the same