Westerngeco L.l.p.

Schlumberger Technology Corporation

Zhiming Wu

Alan Gaither Teague

Milton A Walz

Clement Kostov

Philip Kitchenside

Ahmed Rushdy Elsaid Elzein Ali

Frederico Xavier De Melo

Adriana Citlali Ramirez-Perez

A method includes receiving seismic data of a seismic survey; defining a two-dimensional domain in dimensions x and y; identifying a target trace (S, R) of the seismic survey where S represents a source at (x, y) and where R represents a receiver at (X, y); defining with respect to the two-dimensional domain, a source trace (S, X) as a primary trace, a receiver trace (R, X) as a primary trace, and a generator trace (X, X) as associated with an interbed multiple generator; convolving the primary traces and crosscorrelating with the generator trace for a plurality of different (X, X) pairs where each of the plurality of (X, X) pairs defines a line segment where the line segments are substantially parallel to one another; and, based at least in part on the convolving the primary traces and crosscorrelating with the generator trace, generating seismic data with attenuated multiple energy.

Reflection seismology internal multiple estimation

A method for removing internal multiples from collected data, such as seismic data. The method includes predicting internal multiples for each horizon in a plurality of horizons that created the internal multiples. The internal multiples may be predicted from the seismic data in one pass. After predicting the internal multiples, the method includes creating a separate model of internal multiples for each horizon based on the predicted internal multiples for each horizon. The method then iteratively subtracts each separate model of internal multiples for each horizon from the seismic data.

Attenuating internal multiples from seismic data

Methods for attenuating multiple reflections in seismic data by predicting the multiples using wavefield extrapolation modeling, which uses one-way wavefield propagation in both the up and down directions to predict internal multiples up to a specified order.

Wavefield extrapolation modeling for internal multiple prediction

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Katy, TX, United States of America

Zhiming Wu