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Evaluation of Nonlinear Approaches for Surface Microseismic ProcessingNormal access

Authors: G.C. Michaud, C. Fliedner, A. Gendrin, T. Probert and A. Ozbek
Event name: 79th EAGE Conference and Exhibition 2017
Session: Microseismic Signatures and Data Processing
Publication date: 12 June 2017
DOI: 10.3997/2214-4609.201700539
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.2Mb )
Price: € 20

In the context of surface microseismic processing, a nonlinear stack method, the phase weighted nth root stack, was evaluated and benchmarked against linear stack. From a synthetic analysis, the parameter choice was evaluated to improve the detectability of small amplitude microseismic events. The choice and impact of small exponent values for the nonlinear stack method were confirmed on one stage of a multiwell, multistage hydraulic fracturing in the Marcellus shale formation. Compared to the linear stack, up to 30 % more events were detected and located for this data example.

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