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1. AU2013271700 - Seismic data analysis using ocean bottom node data collection

Office
Australie
Numéro de la demande 2013271700
Date de la demande 04.06.2013
Numéro de publication 2013271700
Date de publication 18.12.2014
Type de publication B2
CIB
G01V 1/38
GPHYSIQUE
01MÉTROLOGIE; TESTS
VGÉOPHYSIQUE; MESURE DE LA GRAVITATION; DÉTECTION DES MASSES OU OBJETS; MARQUES D'IDENTIFICATION
1Séismologie; Prospection ou détection sismique ou acoustique
38spécialement adaptées aux zones recouvertes d'eau
G01V 1/36
GPHYSIQUE
01MÉTROLOGIE; TESTS
VGÉOPHYSIQUE; MESURE DE LA GRAVITATION; DÉTECTION DES MASSES OU OBJETS; MARQUES D'IDENTIFICATION
1Séismologie; Prospection ou détection sismique ou acoustique
28Traitement des données sismiques, p.ex. pour analyse, pour interprétation, pour correction
36Exécution de corrections statiques ou dynamiques sur des enregistrements, p.ex. correction de l'étalement; Etablissement d'une corrélation entre signaux sismiques; Elimination des effets produits par un excès d'énergie
CPC
G01V 1/36
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
28Processing seismic data, e.g. analysis, for interpretation, for correction
36Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
G01V 1/3817
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
38specially adapted for water-covered areas
3817Positioning of seismic devices
G01V 1/3835
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
38specially adapted for water-covered areas
3817Positioning of seismic devices
3835measuring position, e.g. by GPS or acoustically
G01V 2200/12
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
2200Details of seismic or acoustic prospecting or detecting in general
10Miscellaneous details
12Clock synchronization-related issues
G01V 2200/14
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
2200Details of seismic or acoustic prospecting or detecting in general
10Miscellaneous details
14Quality control
G01V 1/38
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
38specially adapted for water-covered areas
Déposants Fairfield Industries Incorporated d/b/a Fairfieldnodal
Inventeurs Craft, Kenneth
Udengaard, Carsten
Mandataires Spruson & Ferguson
Données relatives à la priorité 61/655,325 04.06.2012 US
Titre
(EN) Seismic data analysis using ocean bottom node data collection
Abrégé
(EN) The present invention permits RMS traveltime error in a seismic data acquisition to be minimized. Field measurements of source and receiver coordinates, speed of sound in water as a function of depth and time, receiver timing, and clock drift are first collected. The seismic data is then examined to measure travel time from each source to each reciever. A model travel time can then be computed based on the field measurements. By iteratively perturbing at least one of the field measured data using a look-up table and calculating the travel time after each perturbation until an acceptable RMS error has been achieved, conditioned seismic data that takes into account the dynamic nature of the water column will provide the basis for creating an accurate seismic map that is unaffected by the changing water conditions.