Underbalance

March 2, 2026

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Scotty
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A condition where the pressure exerted in the wellbore is less than the pore pressure in any part of the exposed formations.

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  • Glossary: Safety Margin (Drilling)
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  • Glossary: Shut-In Drillpipe Pressure (SIDPP)
  • Glossary: Shut-In Tubing Pressure (SITP)

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