In exploration terminology, which term is used for an exploratory well with no current production?

• A. Wildcat
• B. Rank Wildcat
• C. Appraisal Well
• D. Development Well

Answer: (A)

In exploration terminology, an exploratory borehole drilled into territory with no proven hydrocarbons is called a wildcat well. It’s the primary step to test whether a new area holds oil or gas, and it carries significant risk because there’s no prior production or proven reservoir information. If a wildcat finds hydrocarbons, the next wells are typically appraisal wells to evaluate the size and extent of the discovery and then development wells to begin production. A rank wildcat is a more specific label for a particularly high-risk frontier well, but the general term for an exploratory well with no current production is wildcat. An appraisal well is used after a discovery to delineate the reservoir, and a development well is drilled to produce from a known reservoir, so they don’t fit the described scenario.