Technical resources

Directional Drilling & Wellbore Quality

Aug 31, 2026 · 14 min read

How Survey Interval Affects Wellbore Tortuosity Analysis

Wellbore tortuosity is increasingly used to evaluate directional performance and BHA quality, but the calculated value depends partly on how the trajectory was surveyed. This article examines how survey spacing changes the geometric features visible to a tortuosity calculation, why resampling does not automatically solve the problem, and what engineers should normalize before comparing wells or BHAs.

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