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3D Fault Plane Geometry and Fault Scaling Studies Using Seismic AttributesNormal access

Authors: B. Alaei and A. Torabi
Event name: Fourth International Conference on Fault and Top Seals
Session: Poster Session
Publication date: 20 September 2015
DOI: 10.3997/2214-4609.201414066
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.56Mb )
Price: € 20

Summary:
We have applied an advanced seismic fault attribute workflow to improve images of faults at different scales. The attribute volumes were used to study the actual geometry of fault plane in 3D in space. This fault plane assessment is independent of uncertainties imposed by traditional seismic-interpretation. We measured fault geometric attributes including fault length, displacement, and height from different seismic fault attributes to study fault-scaling properties. Our study showed that faults are segmented along their length and the number of segments increases towards the upper and lower tips. The distance between fault segments also increases towards the upper and lower tips. Fault length varies almost symmetrically through fault plane and reaches its maximum almost at the center of its extent. The displacement versus depth exhibits a narrow belly-shaped distribution. The depth at which the maximum accumulated displacement occurs does not coincide with the depth where the maximum fault length reaches.


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