Effects of local stress perturbation on secondary fault development

摘要: The complex patterns of normal faults in sedimentary basins are commonly attributed to a geological history with varying directions tectonic extension. However, we show an example faulting from North Sea hydrocarbon reservoir where the variability secondary fault orientations can be stress perturbations that developed around larger during single phase This is demonstrated by comparing attributes fields computed largest detailed three-dimensional (3D) geomechanical models, data such as discretized orientation and density observed high quality 3D seismic reflection survey. modeling results strong influence irregular geometry (bends intersections) on development smaller faults. Methods this study applied predict likely locations subseismic