Well Terminology
An Exploration Well is the first well drilled on an exploration prospect. If there is a discovery then several Appraisal Wells (or Delineation Wells) are drilled to confirm the extent of the discovery, the size of the reservoir and the quality of reservoir environment. These wells are typically drilled vertically. In offshore prospects, they are often abandoned after drilling the appraisal wells.
Figure 1: Figure of Well Terminology
