You must log in to edit PetroWiki. Help with editing
Content of PetroWiki is intended for personal use only and to supplement, not replace, engineering judgment. SPE disclaims any and all liability for your use of such content. More information
Glossary:Underbalance
Jump to navigation
Jump to search
When the pressure exerted by the column of fluid in the wellbore is less than the pore pressure in the formation.