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Cgg Services Sas patents (2018 archive)


Recent patent applications related to Cgg Services Sas. Cgg Services Sas is listed as an Agent/Assignee. Note: Cgg Services Sas may have other listings under different names/spellings. We're not affiliated with Cgg Services Sas, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | Cgg Services Sas-related inventors


System and method for estimating the spatial distribution of an earth resource

System and method for estimating a spatial distribution of a characteristic associated with earth resources. The method includes receiving at an interface palaeogeography data including (1) palaeotopography data, (2) palaeobathymetry data, (3) and a palaeo-earth systems model; calculating with a processor, a retrodictive model of the characteristic based on the (1) palaeotopography data, (2) the palaeobathymetry data, and (3) the palaeo-earth systems model; and imaging the spatial distribution of the characteristic over a part of the earth.. ... Cgg Services Sas

Electromagnetic receiver tracking and real-time calibration system and method

An electromagnetic (em) receiver system for measuring em signals. The em receiver system includes a survey em transmitter for generating survey em signals within a first frequency range; a tracking em transmitter for generating tracking signals within a second frequency range; and a receiver section including a receiver that measures both the survey em signals and the tracking signals.. ... Cgg Services Sas

Systems and methods for active cancellation of transient signals and dynamic loop configuration

A method and system for active cancellation of transient signals and dynamic loop configuration for geophysical exploration is disclosed. The method includes controlling a transmitter to transmit a waveform in a frequency spectrum during an on-time. ... Cgg Services Sas

Method and apparatus for unambiguously estimating seismic anisotropy parameters

The orientation of the symmetry axis of an underground formation including an hti layer is determined by comparing azimuthal fourier coefficient of inversion results in distinct source-receiver azimuth ranges with values expected from the hti assumption. A branch-stacking technique or prior knowledge may be used to select one of the anisotropy axis orientation values.. ... Cgg Services Sas

Reflection full waveform inversion methods with density and velocity models updated separately

A reflection full waveform inversion method updates separately a density model and a velocity model of a surveyed subsurface formation. The method includes generating a model-based dataset corresponding to the seismic dataset using a velocity model and a density model to calculate an objective function measuring the difference between the seismic dataset and the model-based dataset. ... Cgg Services Sas

Apparatus and method for determining earth's near-surface properties with on-time measurements from airborne time-domain electromagnetic data

A device and method for calculating electrical properties of a surveyed underground formation. The method includes selecting a waveform having multiple current transition rates; placing a time-domain electromagnetic (tem) system above the underground formation while generating with a transmitter a transient primary magnetic field during an on-time period and no magnetic field during a following off-time period, due to the waveform; and recording with a receiver magnetic related data generated by the earth as a result of the transient primary magnetic field. ... Cgg Services Sas

Multi-sensor system for airborne geophysical prospecting and method

A multi-sensor electromagnetic (em) system and method for measuring gradients of em signals. The multi-sensor em system includes a frame; a transmitter device attached to the frame and configured to generate a primary em field; a receiver device attached to the frame and configured to record a secondary em field generated by the earth after being excited by the primary em field; and a gradient sensor device attached to the frame and configured to record a gradient of the secondary em field.. ... Cgg Services Sas

Device and method for model-based deblending

Computing device, computer instructions and method for removing cross-talk noise from seismic data and generating an image of a surveyed subsurface. The method includes receiving input seismic data d generated by firing one or more seismic sources so that source energy is overlapping, and the input seismic data d is recorded with seismic sensors over the subsurface; generating a cross-talk noise model n by replacing at least one original shot gather with a reconstructed shot gather; subtracting the cross-talk noise model n from the input seismic data d to attenuate coherent cross-talk noise to obtain processed seismic data dp; deblending the processed seismic data dp with a deblending algorithm to attenuate a residual noise to obtain deblended seismic data dd; and generating the image of the subsurface based on the deblended seismic data dd.. ... Cgg Services Sas

Method and apparatus for simultaneous geostatistical inversion of time-lapse seismic data

Properties of underground formations are obtained by performing simultaneous geostatistical inversion of two or more seismic datasets acquired over the same area. These methods enable simultaneous estimating quantitative changes in a hydrocarbon-producing field.. ... Cgg Services Sas

Modeling an elastic stiffness tensor in a transverse isotropic subsurface medium

Modeling an elastic stiffness tensor in a transverse isotropic subsurface medium acquires well log data for at least one well passing through the transverse isotropic subsurface medium. The transverse isotropic subsurface medium is divided into an effective anisotropic layer and an isotropic layer. ... Cgg Services Sas

Apparatus and method for compensating for receiver motion in airborne electromagnetic systems

A computing device and method for removing noise associated with an excitation signal and its odd harmonics. A computing system for processing electromagnetic (em) signals includes an interface that receives raw data indicative of a time rate of change of a magnetic field as recorded with a receiver coil while airborne, wherein the magnetic field includes a primary source excitation; and a processor connected to the interface. ... Cgg Services Sas

Water-fillable cable fairing and method

A water-fillable fairing configured to be mounted on a cable has a fairing body and an inlet. The fairing body is at least partially made of a flexible material, and is able to hold water at a higher pressure than an average pressure outside the fairing body, while the cable is towed. ... Cgg Services Sas

Transverse vibration attenuation mechanism and method for marine seismic acquisition system

A front-end gear connects a streamer to a vessel. The front-end gear includes a lead-in that connects to the streamer, a first bend limiting element attached to the lead-in and to a float that floats at a sea surface, a second bend limiting element attached to the lead-in, a distance l away from the first bend limiting element, and a depressor attached to the second bend limiting element. ... Cgg Services Sas

Flush design of an autonomous underwater vehicle with negative buoyancy for marine seismic surveys

An autonomous underwater vehicle (auv) for recording seismic signals during a marine seismic survey. The auv includes a body extending along an axis x and having a front region, a middle region, and a tail region, wherein the middle region is sandwiched between the front region and the tail region along the x axis. ... Cgg Services Sas

02/15/18 / #20180045841

Three-dimensional seismic acquisition system and method with dynamic resolution

System and method for calculating a pre-plot for a marine seismic acquisition system. The method includes receiving as input a first number of autonomous underwater vehicles (auvs) and a second number of source vessels; receiving a geometry of an area to be surveyed; receiving a set of naturally different regions and/or humanly set targets for the area to be surveyed; calculating a first sailing path for an auv of the first number of auvs; calculating a second sailing path for a source vessel of the second number of source vessels, based on the set of naturally different regions and/or humanly set targets; and entering the pre-plot into a navigation system of the auv and the source vessel so that the auv and source vessel dynamically change an offset distance between them, while sailing during a seismic survey, based on the naturally different regions and/or humanly set targets.. ... Cgg Services Sas

02/08/18 / #20180038972

Vibratory source for non-vertical boreholes and method

A reaction mass seismic survey source that is located in an underground casing. The seismic source includes a non-planar base plate; a reaction mass located on the non-planar base plate; and a flextensional element housed in a recess of the reaction mass and configured to vibrate the non-planar base plate when actuated, to generate seismic waves underground.. ... Cgg Services Sas

02/01/18 / #20180031731

System and method for incorporating ground penetrating radar equipment on seismic source

A system and method for incorporating ground penetrating radar equipment on seismic source is disclosed. The system includes a seismic source platform, a seismic source coupled to the seismic source platform and configured to emit a seismic signal, a transmitter coupled to the seismic source platform using at least one piece of mounting equipment and configured to emit electromagnetic signals, an ground penetrating radar antenna coupled to the seismic source platform using at least one piece of mounting equipment and configured to receive reflected electromagnetic signals, and a ground penetrating radar recorder coupled to the seismic source platform and configured to record reflected electromagnetic signals.. ... Cgg Services Sas

01/18/18 / #20180017692

Device and method for estimating pre-stack wavelet model from seismic gathers

Computing device, computer instructions and method for calculating a characteristic of the earth based on recorded seismic data related to a subsurface. The method includes receiving well log data; calculating a statistical model based on the well log data; calculating a reflectivity r of the subsurface based on an intercept a and a gradient b of the statistical model; calculating a reconstructed gather d based on the reflectivity r and a wavelet model w; calculating parameters wn of the wavelet model w with a first inversion function c that depends on (i) the reconstructed gather d, (ii) a recorded gather d0, and (iii) a probability density function (pdf) associated with the statistical model; and calculating the characteristic of the earth for the subsurface, based on the parameters wn of the wavelet model w and the recorded gather d0.. ... Cgg Services Sas








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