Correction for errors caused by variation in water conditions

Details Correction for errors caused by variation in water conditions Correction for errors caused by variation in water conditions

2011-07-12

2011-07-12

Bhat, Aditya (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Earth science

Reexamination Certificate

active

07979210

ABSTRACT:
Method for processing seismic data to correct for errors caused by variation in water conditions. In one implementation, the method may include (a) applying a dip correction to a plurality of observed water bottom reflection times using a model water velocity and an estimate of geologic dip; (b) applying a normal moveout (NMO) correction to the dip corrected observed water bottom reflection times using the model water velocity; (c) applying a common mid point (“CMP”) bin centering correction to the NMO corrected, dip corrected observed water bottom reflection times using the model water velocity and the estimate of geologic dip; (d) solving for Δsi, which is an estimate of the difference in slowness between the observed water bottom reflection times and the water bottom reflection times that would have been observed had the water velocity been the same as the model water velocity; (e) solving for an estimate of observed water velocity based on sobs,i=sm+Δsi, where sobs,iis an estimate of observed slowness and smis defined as the model slowness; (f) layer replacing the observed water bottom reflection times using the estimate of the observed water velocity and the model water velocity; and (g) repeating steps (a) to (f) using the layer replaced observed water bottom reflection times until the changes in the estimate of observed water velocity approach zero.

REFERENCES:
patent: 6151556 (2000-11-01), Allen
patent: 2007/0268780 (2007-11-01), Moore

Affiliated with

Also associated with

Rating

Correction for errors caused by variation in water conditions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Correction for errors caused by variation in water conditions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correction for errors caused by variation in water conditions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2679840