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Oilfield Glossary
Oilfield Glossary
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openhole test

1. n. [Well Completions]
A drillstem test performed in an openhole section of the wellbore. The test once was a popular method of assessing the productivity of exploration wells without the need to run casing or liner across the reservoir interval. Openhole testing now is less common because of the risks and limits associated with fluid flow from an unsupported formation.