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Match Document Document Title
9030910 Jointly interpolating and deghosting seismic data  
A technique includes representing actual measurements of a seismic wavefield as combinations of an upgoing component of the seismic wavefield and ghost operators. Interpolated and deghosted...
9025413 Method for full-bandwidth source deghosting of marine seismic streamer data  
Seismic data recorded in a marine streamer are obtained, sorted as a common receiver gather. A complex Laplace frequency parameter is used to transform the seismic data from a space-time domain to...
9019797 Deghosting using measurement data from seismic sensors  
Measurement data is received from first and second seismic sensors, where the first and second seismic sensors are oriented in opposite directions. Each of the first and second seismic sensors has...
8994527 Sea floor sampling device and method  
A device for collecting samples of the sea floor, including a collection apparatus, a diving apparatus and a control apparatus.
8971149 Method, device and processing algorithm for multiple and noise elimination from marine seismic data  
Computing device, computer instructions and method for simultaneously denoizing and attenuating multiples in seismic data recorded with seismic receivers. The method includes receiving the seismic...
8942061 Seismic streamer system and method  
A seismic streamer system for acquiring seismic data includes a plurality of first cable sections each employing a first sensor configuration therein, and at least one second cable section...
8937848 Methods and systems to eliminate undesirable variations in time-lapse seismic surveys  
Device and method for processing 4-dimensional (4-D) seismic traces. The method includes receiving at least two vintages of seismic traces recorded by seismic receivers for a same subsurface area,...
8929175 Method of marine time-lapse seismic surveying  
A method of marine time-lapse seismic surveying of a subsurface formation, comprises providing a baseline survey, providing a monitor survey that includes information about changes in the...
8923091 Dual-sensor noise-reduction system for an underwater cable  
A system and a method for rejecting noise in an underwater sensor cable, such as a towed streamer or an ocean-bottom cable. An adaptive hydrodynamic model of the cable produces an estimated sensor...
8879353 Fast 3-D surface multiple prediction  
A method and apparatus for predicting a plurality of surface multiples for a plurality of traces in a record of seismic data. In one embodiment, the method includes providing a plurality of target...
8862408 Determining one or more target positions in an acquisition domain for processing survey data  
In response to at least one input criterion, one or more target positions in an acquisition domain are determined for processing of survey data, where the survey data is acquired by survey...
8837255 Seismic acquisition method and system  
The maximum output of a seismic source array may be reduced by activating the individual seismic sources within these seismic source array in a pattern that is extended in time rather than by the...
8830789 Apparatus and method for imaging a subsurface using accumulated energy of wavefield  
Provided is an apparatus of imaging a subsurface of a target area. The apparatus includes: an observed wavefield acquiring unit configured to acquire an observed wavefield for a target area based...
8811113 Method of summing dual-sensor towed streamer signals using seismic reflection velocities  
A merged particle velocity signal is generated by merging a recorded vertical particle velocity signal, scaled in an upper frequency range using a time-dependent arrival angle as determined by...
8699297 Deghosting and reconstructing a seismic wavefield  
A technique includes receiving data, which are indicative of measurements acquired by seismic sensors of a seismic wavefield. The seismic wavefield is formed from a combination of an upgoing...
8693282 Deghosting seismic data  
A technique includes receiving seismic data acquired by seismic sensors; and processing the seismic data on a machine to deghost the data. The processing includes deghosting the seismic data using...
8693281 Marine seismic acquisition method and system  
An elongate body for parenteral injection at low velocity from a device is described. The body has at least one pointed end and comprises at least one active material. In addition, the body has a...
8689935 Abating low-frequency noise using encapsulated gas bubbles  
Air bubbles may be used to reduce radiated underwater noise. Two modalities of sound attenuation by air bubbles were shown to provide a reduction in radiated sound: bubble acoustic resonance...
8634271 Variable depth streamer SRME  
Methods and systems for variable wavelet correction are described. A variable depth dataset is deghosted before presentation to a multiples prediction step of multiples elimination model. In...
8611182 Fast 3-D surface multiple prediction  
A method and apparatus for predicting a plurality of surface multiples for a plurality of traces in a record of seismic data. In one embodiment, the method includes providing a plurality of target...
8600680 Method for eliminating spectral constraints of acquisition system and earth filtering effects  
Recorded seismic data are represented as a convolution of operators representing a reflectivity series of the earth and a seismic wavelet. The recorded seismic wavelet is represented as a...
8570831 Wavefield extrapolation modeling for internal multiple prediction  
Methods for attenuating multiple reflections in seismic data by predicting the multiples using wavefield extrapolation modeling, which uses one-way wavefield propagation in both the up and down...
8559267 Methods and apparatus of borehole seismic surveys  
Methods and apparatus for borehole seismic survey are disclosed comprising a first seismic source under water at a first location and a second seismic source at a second, deeper location. Seismic...
8553491 Seismic exploration process enabling the suppression of ghosts due to reflections at the water surface, and process for processing seismic data in order to suppress these ghosts  
The invention relates to a process for marine seismic exploration at least two different depths by means of streamers, each including a set of hydrophones, the acquisition of data at the different...
8547786 Estimating and using slowness vector attributes in connection with a multi-component seismic gather  
A technique includes determining at least one attribute of a slowness vector associated with a seismic gather based on pressure data and an indication of particle motion that is measured by at...
8547787 System and technique to suppress the acquisition of torque noise on a multi-component streamer  
A technique includes distributing particle motion sensors along the length of a seismic streamer. Each particle motion sensor is eccentrically disposed at an associated angle about an axis of the...
8526268 Method for deghosting and water layer multiple reflection attenuation in marine seismic data  
A method is disclosed for deghosting and water surface multiple reflection attenuation in marine seismic data. The method includes decomposing data acquired at two water depths with sensors that...
8467265 Interpolation and deghosting of seismic data acquired in the presence of a rough sea  
A technique for processing seismic data acquired in a seismic survey conducted in the presence of a rough sea includes receiving a first dataset that is derived from data acquired by a first set...
8456950 Method for wave decomposition using multi-component motion sensors  
Three-axis velocity data, obtained along with pressure data in a marine seismic survey, are rotated to a ray direction. Plane wave decomposition is applied in the ray direction to the rotated...
8456949 Method for determining signal quality in dual sensor seismic streamer signals  
A method for determining quality of signals acquired using marine seismic streamers having pressure responsive sensors and motion responsive sensors includes cross ghosting pressure responsive...
8456951 Method and apparatus for deghosting seismic data  
Apparatus, computer instructions and method for deghosting seismic data related to a subsurface of a body of water. The method includes inputting data recorded by detectors that are towed by a...
8451682 Method and apparatus for deghosting seismic data  
Apparatus, computer instructions and method for deghosting seismic data related to a subsurface of a body of water. The method includes inputting data recorded by detectors that are towed by a...
8437218 Correcting geometry-related time and amplitude errors  
A method for predicting a plurality of surface multiples for a plurality of target traces in a record of seismic data acquired in a survey area. The method includes selecting a target trace and...
8396668 Marine seismic surveying employing interpolated multicomponent streamer pressure data  
It is described a method of interpolating and extrapolating seismic recordings, including the steps of deriving particle velocity related data from seismic recordings obtained by at least one...
8379481 3D deghosting of multicomponent or over/under streamer recordings using cross-line wavenumber spectra of hydrophone data  
A technique includes obtaining pressure data that was acquired by seismic sensors towed as part of a three-dimensional spread of streamers and obtaining particle motion data, which are indicative...
8352190 Method for analyzing multiple geophysical data sets  
An exemplary embodiment of the present invention provides a method for interpolating seismic data. The method includes collecting seismic data of two or more types over a field (401), determining...
8339896 Method for separating seismic sources in marine seismic surveys  
An operator is applied in a frequency domain to multiple source seismic data acquired in a marine survey, with multiple sources substantially horizontally collocated and at different depths, to...
8279706 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Method for full-bandwidth source deghosting of marine seismic streamer data
 
Seismic data recorded in a marine streamer are obtained, sorted as a common receiver gather. A complex Laplace frequency parameter is used to transform the seismic data from a space-time domain to...
8274858 Method for full-bandwidth deghosting of marine seismic streamer data  
Seismic data recorded in a marine streamer are obtained, with the seismic data being representative of characteristics of subsurface earth formations and acquired by deployment of a plurality of...
8243547 Identification and suppression of multiples in ocean bottom seismic data  
A method for identifying and suppressing water column reverberations (“multiple reflections”) in two-component ocean bottom seismic data is disclosed. The method involves processing the hydrophone...
8208341 Processing of combined surface and borehole seismic data  
Methods and related systems are described for processing surface seismic data. Surface seismic data representing seismic signals detected at a plurality of surface locations is wavefield...
8208342 Method for combining signals of pressure and particle motion sensors in marine seismic streamers  
A cross-line slowness is determined for each sample in the signals in towed marine seismic streamers. A range of assumed cross-line slownesses is selected. Vertical wavenumbers are determined...
8174926 Method for wavefield separation for dual-sensor data using kirchhoff-type datuming and migration  
A first weighted integral operator is applied to dual-sensor data to extrapolate the dual-sensor data to a first position above an acquisition surface, generating extrapolated data. A second...
8162297 Diverse bubble size generation  
Method and apparatus for producing a bubble curtain with a diversity of bubble diameters for purposes such as suppressing surface-related multiple reflections in marine seismic surveys. Bubble...
8164978 Interbed multiple prediction  
A method and apparatus for predicting interbed multiples is described herein. Trace geometries may be generated for one or more desired shot-side traces, one or more desired receiver-side traces,...
8116166 3D deghosting of multicomponent or over / under streamer recordings using cross-line wavenumber spectra of hydrophone data  
A technique includes obtaining pressure data that was acquired by seismic sensors towed as part of a three-dimensional spread of streamers and obtaining particle motion data, which are indicative...
RE43188 Method and system for reducing effects of sea surface ghost contamination in seismic data  
An improved de-ghosting method and system that utilizes multi-component marine seismic data recorded in a fluid medium. The method makes use of two types of data: pressure data that represents the...
8095320 Method, program product, and system for suppression of residual water bottom energy in surface seismic data  
Systems, program product, and methods of suppressing residual water bottom energy in seismic data, are provided. An example of a system, program product, and method can be applied to post-stack...
8089825 Method of summing dual-sensor towed streamer signals using cross-ghosting analysis  
A merged particle velocity signal is generated by combining a recorded vertical particle velocity signal, scaled in an upper frequency range using a time-dependent arrival angle as determined by...
8077543 Mitigation of noise in marine multicomponent seismic data through the relationship between wavefield components at the free surface  
A method and apparatus implementing a technique for mitigating noise in seismic data are presented. The technique includes estimating a noise component in a set of multicomponent seismic data...

Matches 1 - 50 out of 197 1 2 3 4 >