Definition(s)
Upset Ovality
Difference between the largest and smallest diameter in a plane perpendicular to the axis of the upset.
Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards
Oil & Gas Drilling Glossary - IADCLexicon.org
Difference between the largest and smallest diameter in a plane perpendicular to the axis of the upset.
Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards