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March 7, 2023

Drilling Dysfunction Demystified Using In-Bit Strain Sensors

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Authors

YWYsabel Witt-DoerringPPPaul PastusekALAaron Lacey

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Overview

Randomized trial evaluates drilling performance in hard formations, indicating effective remediation strategies improve bit life.

Key Points

  • The aim is to understand and address drilling dysfunction impacting bit performance in hard formations.
  • In-bit sensors measured weight, torque, RPM, and vibrations during drilling operations.
  • Forensic images of the bit and bottom-hole assembly (BHA) were analyzed alongside downhole data.
  • A continuous improvement process was implemented to identify and rectify dysfunction causes.
  • Significant improvement in downhole weight on bit (DWOB) after addressing drill string buckling.
  • Reduction in lateral vibration and improved rate of penetration (ROP) noted post-correction.
  • Persistent lateral vibration was identified, leading to recommendations for changes in bit and BHA design.

Cite This Study

Witt-Doerring et al. (2023) studied this question.

synapsesocial.com/papers/6a1d86e633e2df9c962fa7afhttps://doi.org/10.2118/212504-ms
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  2. 2An Analytical Study of Drill-String Vibration1960 · 153 citations