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Determination of Torque and Drag and Buckling conditions with a detailed stress analysis in all BHA components of and the drillstring

Determination of critical RPM vibrations and safe operating parameters

Reduce the occurrence of stick-slip and whirling and improve drilling performance by combining torque and drag and buckling analysis & dynamic vibration analysis with a unique time domain vibration analysis

Post-analysis of stick-slip and whirling to identify cause for failure and/or underperformance

Advanced drill string mechanics service description

Thanks to its strong R&D culture and its research team, DrillScan developed innovative tools as this Advanced Drill String Mechanics service to assess whirling effects on torque and drag, and to assess stick-slip effect on bit rotation stability.

Coupled with a Torque and Drag and Soft String model and a detailed Dynamic Vibration Analysis, result accuracy leads to choose safe drilling parameters (RPM, WOB…) to migrate adverse drilling vibrations.

Additionally, all common Torque & Drag results (hookloads, surface torques…) are determined including these advanced features. Thus, damages due to resonance phenomena, as BHA loss and Side Tracks, can be avoided.

Benefits of advanced drill string mechanics

Advanced drill string mechanics service usage by drilling project phase
Pre-WellReal TimePost-Well
  • Drillstring Fatigue

    Avoid increased drill string fatigue and associated personnel and operational safety.

  • Reduce number of trips

    Reduce number of trips due to bit failures and/or underperformance

  • Improve ROP

    Improve ROP performance by ensuring optimum operational parameters (RPM; Torque; WOB)

  • Reduce risk of failures

    Reduce risk of major failures such as back-off and twist-off issues.

  • Whirling and stick-slip

    Improve hole condition and mitigate casing wear due to whirling and stick-slip effect.