Meana Petro
DR-10IntermediaOla 2IAIoT

Desgaste de Barrena y Vida Útil Restante

En una frase

Estimates how much drilling the bit has left, so the trip happens on purpose rather than after a failure.

El problema

Bits are tripped either too early, throwing away useful footage, or too late, which risks leaving cones or cutters in the hole and turns a planned trip into a fishing job.

The decision is usually made on ROP decline alone, which conflates bit wear with formation change.

Cómo funciona

Cumulative work on the bit is integrated from WOB, RPM and confined rock strength, and combined with the MSE trend and downhole vibration severity. A survival model trained on the operator’s dull-grading history maps accumulated work to expected remaining footage per formation.

Formation change is separated from wear by tracking the MSE-to-rock-strength ratio rather than raw ROP.

Datos necesarios

  • Time-based WOB, RPM, torque, ROP, and downhole vibration if available
  • Bit records with IADC dull grades from the field
  • Confined compressive strength estimated from offset sonic logs
  • Formation tops and lithology

Qué obtiene

  • Remaining-footage estimate with an uncertainty band, updated per stand
  • Trip-now versus continue recommendation with cost comparison
  • Field-wide bit performance league table by supplier and type

Qué no puede hacer

Prediction quality depends on dull-grading discipline, and dull grades in most archives are recorded inconsistently between crews. For PDC bits in abrasive sandstone the estimate is usable; for roller cone bearing failure, which is the failure mode that actually causes fishing jobs, there is almost no surface signature and we do not claim to predict it.

Cada página de capacidad declara una limitación real. Si un proveedor no puede decirle dónde termina su producto, no le están diciendo la verdad sobre dónde empieza.

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