Look up terms beginning with:
1. n. 
A concave-upward, semicircular event in seismic data that has the appearance of a smile and can be caused by poor data migration or migration of noise.
To download this file you first sign in to your Schlumberger account.
Don't have an account? Click below to get started.
Premium content requires special account permissions. We need a little more information from you before we can grant you access.