Meana Petro
PR-10FundacionalOla 2Dominio

Selección y Diseño de Control de Arena

En una frase

Decides which wells will produce sand and sizes the gravel and screen for the ones that will.

El problema

Sand production erodes chokes and flowlines and eventually kills the well. Sand control is expensive enough that installing it everywhere is not viable, so the prediction of which wells need it carries real money.

Cómo funciona

Sanding potential is predicted from rock strength derived from sonic logs, drawdown history and depletion state. For wells that need control, gravel size and screen aperture are designed against the measured particle-size distribution using standard Saucier and Coberly criteria, with the full sensitivity shown rather than a single recommended size.

Datos necesarios

  • Sonic and density logs for mechanical property estimation
  • Particle-size distribution from sieve or laser analysis of formation samples
  • Drawdown and depletion history
  • Sand production history and failure records from offset wells

Qué obtiene

  • Sanding risk per well and per interval with critical drawdown
  • Gravel size and screen aperture design with the governing criterion named
  • Completion recommendation: open hole, cased and perforated, or screen type

Qué no puede hacer

The particle-size distribution is the controlling input, and a distribution measured on a drilled cutting or a poorly preserved core sample is not representative of the formation. Where no reliable PSD exists the design falls back to conservative field analogues, which is a more expensive completion than the well may need, and we say so explicitly rather than presenting it as an optimum.

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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