Method for processing seismic data
This paper describes a method for processing seismic data. It comprises: estimating zero-offset amplitude, A, and amplitude variation with offset, B, traces for each of a plurality of trial velocities from the seismic data, differentiating the estimated zero-offset amplitude, A, traces with respect to time, estimating components of amplitude variation with offset, B, traces that are correlated with the differentiated zero-offset amplitude traces, removing the estimated components from the amplitude variation with offset traces to obtain a new estimate, B{sub new} of the amplitude variation with offset trace, computing an RMS error in the least squares fit of dynamically corrected data to form A + B{sub New} Sin{sup {theta}} using the new estimate of amplitude variation with offset traces, generating quality-of-fit velocity coefficients for moveout velocity estimation from the RMS error, and determining moveout velocity estimates from the generated quality-of-fit velocity coefficients.
- Assignee:
- Shell Oil Co., Houston, TX (USA)
- Patent Number(s):
- A; US 4995007
- Application Number:
- PPN: US 7-454572
- OSTI ID:
- 5145535
- Country of Publication:
- United States
- Language:
- English
Similar Records
Robust AVO analysis
Method of geophysical exploration including processing and displaying seismic data to obtain a measure of subterranean formation rock properties