Meana Petro
SR-03IntermediaOla 2IA

Clasificación Automatizada de Facies

En una frase

Labels rock type from well logs across hundreds of wells consistently, which a team of interpreters working separately cannot do.

El problema

Facies interpretation in a mature field spans decades and dozens of interpreters. The same log response has been called three different things in three different studies, and the geomodel inherits all three.

Cómo funciona

A supervised classifier is trained on core-calibrated intervals and applied field-wide, with per-prediction confidence. Where the model is uncertain it abstains and routes the interval to an interpreter rather than guessing, and abstention rate is reported as a headline number.

Datos necesarios

  • Standard log suite: GR, resistivity, density, neutron, sonic where available
  • Core descriptions with depth-shifted core-to-log ties
  • Existing facies interpretations for benchmark comparison
  • Environmental corrections and normalisation between logging vintages

Qué obtiene

  • Facies curve per well with confidence and abstention flags
  • Field-wide facies consistency report against legacy interpretations
  • RESQML export for the geomodelling workflow

Qué no puede hacer

The model reproduces the scheme it was taught, including its errors. It cannot resolve facies that are not separable in the logged response — a cemented and an uncemented sand with the same porosity will not be split by a standard suite, no matter how the model is trained, and we say that up front rather than after delivery.

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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