Slickenlines are scratches on a fault surface caused by faulting (shear movement). They are key to spotting natural fractures in rock core.
Imaging a Fault in Valhall Field
Importance of Slickenlines
Picking Faults in Wells
Faults are usually picked on seismic data. Given that small faults can be as important in field development, well logs should be checked for evidence of faulting.
Here we look at common fault-related explanations for thickness variations between wells and how to create a simple cumulative dip plot of bedding to detect faults.
