| CGGVERITAS SERVICES SA Patent applications |
| Patent application number | Title | Published |
|---|
| 20120092956 | METHOD AND DEVICE TO ACQUIRE SEISMIC DATA - Streamer and method for deploying the streamer for seismic data acquisition related to a subsurface of a body of water. The method includes a step of releasing into the body of water, from a vessel, a body having a predetermined length together with plural detectors provided along the body; a step of towing the body and the plural detectors such that the plural detectors are submerged; and a step of configuring plural birds provided along the body, to float at a predetermined depth from a surface of the water such that a first portion of the body has a curved profile while being towed underwater. | 04-19-2012 |
| 20120069707 | METHOD FOR MONITORING A SUBSOIL ZONE, PARTICULARLY DURING STIMULATED FRACTURING OPERATIONS - The invention relates to a method for monitoring a subsoil zone, wherein a plurality of receivers are arranged on a surface of the soil or near said surface, straight above a geological zone to be monitored, comprising the following steps: generating a set of reference seismic data recording seismic data by means of said receivers; correlating the seismic data recorded ( | 03-22-2012 |
| 20120026833 | 3-D HARMONIC-SOURCE REVERSE TIME MIGRATION SYSTEMS AND METHODS FOR SEISMIC DATA ANALYSIS - Computing device and method for processing seismic traces to produce an image of a subsurface area. The method includes receiving a series of seismic traces related to the subsurface area and recorded by one or more seismic receivers, wherein the one or more seismic sources are originally generated by a source; applying a phase encoding function to the series of seismic traces, at least a portion of said seismic traces comprise signals reflected by geological interfaces of the subsurface area; applying a 3 dimensional (3D) harmonic-source reverse time migration of the series of seismic traces encoded with the phase encoding function; computing a forward wavefield by solving a first wave equation; computing a backward wavefield by solving a second wave equation; and cross-correlating the forward wavefield with the backward wavefield to generate an image of the subsurface. | 02-02-2012 |
| 20110305109 | 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 vessel, the data being associated with waves travelling from the subsurface to the detectors; applying a migration procedure to the data to determine a first image of the subsurface; applying a mirror migration procedure to the data to determine a second image of the subsurface; joint deconvoluting the first image and the second image for deghosting a reflectivity of the subsurface; and generating a final image of the subsurface based on the deghosted reflectivity of the joint deconvoluting step. | 12-15-2011 |
| 20110272207 | METHOD OF ACQUIRING VIBROSEISMIC DATA CONCERNING A ZONE OF THE SUBSOIL, AND SEISMIC EXPLORATION METHOD INCLUDING SUCH A METHOD - The invention concerns a method of acquiring vibroseismic data concerning a zone of the subsoil. This method comprises the following steps: —operating a vibroseismic source so that it transmits a first vibroseismic signal having a first amplitude ( | 11-10-2011 |
| 20110216625 | System for Seismic Exploration A Submerged Subsurface Including Implanted Bases - A system for seismic exploration of a submerged sub-surface comprises a plurality of bases ( | 09-08-2011 |
| 20110176384 | Method and Device for Processing Seismic Data - Apparatus, computer instructions and method for processing seismic data related to a subsurface of a body of water. The method includes inputting data indicative of recordings made by detectors provided on a curved profile in response to an acoustic wave reflected from the subsurface; applying a matched mirror migration procedure to the data, where (i) actual positions of the detectors on the curved profile and corresponding recordings, and (ii) fictitious mirror positions of the actual detectors on the curved profile and corresponding recordings with a changed sign are added in the matched mirror migration; and generating a final image of the subsurface based on the matched mirror migration procedure. | 07-21-2011 |
| 20110166790 | Seismic Processing for the Elimination of Multiple Reflections - Seismic processing method, in which, in order to eliminate multiple reflections on seismic data, seismic data are migrated in time or in depth ( | 07-07-2011 |
