Effective Permeability of Deformation Bands in Fault Damage Zones – Can Deformation Bands Reduce the Risk of Fault Leakage?

In this area, the NE-SW trending Fjæreid fault and the NNW-SSE trending Langøy fracture zones represent long-lived deformation zones that give a representative picture of the

Cataclastic bands formed in well-sorted sandstones involve slightly greater average permeability contrasts and a greater proportion of bands showing permeability reductions >

We first exemplify different types of deformation bands with respect to their deformation mechanism from different localities around the world (formed at different burial depth

Fig. Cumulative frequency plot of missing section for faults and deformation bands from the Gullfaks Field. The fault data were detected through careful well-log correlation,

As fault complexes in nature show the structures at their final state of deformation, the structural 

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In addition, porosity and permeability are reduced in stylolites (Tondi, 2007, Fossen et al., 2007) and deformation bands, whereas permeability is increased in fractures and

When compared to reference models without deformation bands, the introduction of deformation bands with one order of magnitude permeability reduction relative to host rock caused