Meana Petro
PR-05FundacionalOla 2IAIoT

Análisis de Cartas Dinamométricas

En una frase

Reads the dynamometer card automatically and names the downhole condition — gas interference, fluid pound, worn valve, parted rod.

El problema

Card interpretation is a specialist skill applied to a sample of wells a few times a year. On a field of several hundred beam-pumped wells, most cards are never looked at and problems run for months.

Cómo funciona

Surface cards are converted to downhole cards through the wave equation, then a classifier trained on labelled card shapes identifies the condition and the pump fillage. Because the physics step is explicit, the classifier operates on a normalised representation and transfers between fields far better than a model trained on raw surface cards.

Datos necesarios

  • Surface dynamometer cards, ideally at least daily per well
  • Rod string design, pump specification and setting depth
  • Fluid properties and tubing anchor status
  • Labelled historical cards or pull reports for validation

Qué obtiene

  • Automatic card classification and pump fillage per well per day
  • Alerts for fluid pound, gas interference, valve leak and rod failure
  • Pump-off controller setpoint recommendations

Qué no puede hacer

Downhole card conversion depends on an accurate rod string description and damping factor. Where the rod tally in the records does not match what is actually in the well — which is common after several workovers — the converted card is distorted and classification confidence drops. The system flags wells where the computed card is physically inconsistent rather than classifying them anyway.

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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