Definitions for "Delineation well"
Comprises two categories: near-field exploration wells and appraisal wells. Near-field exploration wells are wells located near existing fields/discoveries and have a higher expectation of success than wildcat exploration wells.. An appraisal well is a well drilled for the purpose of identifying extensions to known fields or discoveries.
Well drilled after a discovery well to determine the areal extent of a reservoir.
A well drilled in the vicinity of a discovery well to evaluate the extent and importance of a hydrocarbon find.