Sub-seismic fault structure can create communication pathways across what appears to be a simple case of fault seal.
Impact of Relay Ramps
Change in fault dip
Imaging a Fault in Valhall Field
Anderson's Model of Faulting
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.