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Simultaneous Estimation of Local Intersecting Slopes by a Multimodal Optimization MethodNormal access

Authors: Z. Gao, S. Huo, Y. Liang, L. Huang, G. Shu and Y. Wei
Event name: 81st EAGE Conference and Exhibition 2019
Session: Seismic Attributes for Lithology
Publication date: 03 June 2019
DOI: 10.3997/2214-4609.201901482
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.17Mb )
Price: € 20

Local slope, as one of the key attributes of locally coherent events, has been a hot research issue for decades in seismic data processing. However, the estimation of local slopes for intersecting events is still challenging. In this paper, we first detail the multimodality of coherency of intersecting events in the slope domain, and then introduce a multimodal optimization method called neighborhood based crowding differential evolution (NCDE) algorithm to capture their local slopes simultaneously. We demonstrate the effectiveness of the proposed method on both normal gather and super-gather.

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