Patent ID: 8634271
Filing Date: 2014-01-21
Classification: G01V

Abstract:
1. A method, performed by a processor executing instructions stored in a memory for correcting wavelet variations associated with a variable depth streamer configuration for seismic data collection, said method comprising: processing a recorded variable-depth datum pre-stack dataset, in a shot gather domain, by deghosting said pre-stack dataset wherein all multiples orders are processed; outputting a deghosted pre-stack dataset wherein said deghosted pre-stack dataset is normalized to a sea-surface datum and provided to a multiples elimination technique; and a pre-stack reghosting of a multiples model from said multiples elimination technique, in said shot gather domain, wherein said multiples model generated from said sea-surface datum is applied to said recorded datum to output a reghosted variable depth pre-stack dataset, and wherein said reghosted pre-stack dataset is input to an adaptive subtraction process of a demultiples model.