Patent Document ID: 9971051
Application ID: 14152007
Patent Flag: 1

Claim One:
1. A method for separating multiple events from primary events in noisy seismic data, said method comprising: receiving the noisy seismic data that includes the primary events and the multiple events (M c ), the noisy seismic data being recorded with seismic receivers; estimating predicted multiples (M′); adjusting the predicted multiples (M′) to substantially match said multiple events (M c ) by (i) applying a least-square matching filter (f LS ), in a space and time domain, to the predicted multiples (M′) and (ii) applying an inverse curvelet transform (C −1 ) to the multiple events (M c ), wherein the predicted multiples (M′) are in the space and time domain and the multiple events (M c ) are in a curvelet domain; solving with a processor an adaptive curvelet domain separation (ACDS) equation based on said noisy seismic data and said adjusted predicted multiples, wherein the ACDS equation includes (a) a norm of the primary events, (b) a norm of the multiple events, (c) a norm of a difference between (i) the least-square matching filter (f LS ) applied to the predicted multiples (M′) and (ii) the inverse curvelet transform (C −1 ) applied to the multiple events (M c ), and (d) a norm of a difference between (1) the noisy seismic data and (2) the inverse curvelet transform (C −1 ) applied to the primary events and the multiple events; outputting separated said multiple events and said primary events; and generating an image based on said separated primary events, wherein the noisy seismic data corresponds to various layers of the earth and the generated image represents an improved image of the various layers of the earth.