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September 17, 2025

Advanced MPD Techniques for Ballooning Control: Effective Management of Wellbore Breathing and Overbalance Optimization Allowed Successful Navigation Through the 12 in. Section to Achieve Target Depth – Case Study

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Authors

SKS. E. KrekovMHM. Herhar

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Overview

Case study demonstrates effective managed pressure drilling to manage wellbore ballooning and overbalance pressure.

Key Points

  • Successful mitigation of wellbore ballooning improved drilling stability and reduced operational risks.
  • Well control maintained by managing bottomhole equivalent circulating density, reducing it from 150.2 to 146.7 pcf.
  • Methodical approach allowed for precise adjustments to overbalance pressure during drilling to target depth.
  • Establishing baseline parameters before circulation was critical to ensuring accurate monitoring and well stabilization.

Cite This Study

Krekov et al. (2025) studied this question.

synapsesocial.com/papers/68d4596631b076d99fa5c079https://doi.org/10.2118/227817-ms
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