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1. WO2022165221 - SEISMIC DENOISING

Publication Number WO/2022/165221
Publication Date 04.08.2022
International Application No. PCT/US2022/014376
International Filing Date 28.01.2022
IPC
G01V 1/36 2006.1
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
CPC
G01V 1/362
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
362Effecting static or dynamic corrections; Stacking
G01V 1/368
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
364Seismic filtering
368Inverse filtering
G01V 2210/1234
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
2210Details of seismic processing or analysis
10Aspects of acoustic signal generation or detection
12Signal generation
123Passive source, e.g. microseismics
1234Hydrocarbon reservoir, e.g. spontaneous or induced fracturing
G01V 2210/3246
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
2210Details of seismic processing or analysis
30Noise handling
32Noise reduction
324Filtering
3246Coherent noise, e.g. spatially coherent or predictable
G01V 2210/3248
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
2210Details of seismic processing or analysis
30Noise handling
32Noise reduction
324Filtering
3248Incoherent noise, e.g. white noise
G01V 2210/51
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
2210Details of seismic processing or analysis
50Corrections or adjustments related to wave propagation
51Migration
Applicants
  • SHEARWATER GEOSERVICES SOFTWARE INC. [US]/[US]
Inventors
  • LI, Chengbo
  • ZHANG, Yu
Priority Data
17/587,76528.01.2022US
63/142,62628.01.2021US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SEISMIC DENOISING
(FR) DÉBRUITAGE SISMIQUE
Abstract
(EN) Leveraging migration and demigration, here we propose a learning-based approach for fast denoising with applications to fast-track processing. The method is designed to directly work on raw data without separating each noise type and character. The automatic attenuation of noise is attained by performing migration/demigration guided sparse inversion. By discussing examples from a Permian Basin dataset with very challenging noise issues, we attest the feasibility of this learning-based approach as a fast turnaround alternative to conventional denoising methodology.
(FR) En tirant parti de la migration et de la démigration, les inventeurs proposent une approche fondée sur un apprentissage destinée à un débruitage rapide permettant des applications à un traitement accéléré. Le procédé est conçu pour fonctionner directement sur des données brutes sans séparer chaque type et caractère de bruit. L'atténuation automatique de bruit est obtenue par la réalisation d'une inversion éparse guidée par migration/démigration. En se basant sur des exemples provenant d'un ensemble de données du Bassin Permien présentant des problèmes de bruit très difficiles, les inventeurs attestent de la faisabilité de cette approche fondée sur l'apprentissage en tant qu'alternative rapide à une méthodologie de débruitage classique.
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