📝 Overview

The Hydrate Predictor estimates hydrate formation risk in gas pipelines using pressure, temperature, gas composition (or gravity), and a fast field-proven equation. It supports industry codes and lets you easily change units and standards, giving you a clear go/no-go risk message.

🧾 Inputs

  • Pipeline Pressure: bar, psi, MPa (selectable)
  • Pipeline Temperature: °C, °F (selectable)
  • Gas Composition: Methane, Ethane, Propane, CO₂, N₂ (mole % each)
  • OR Gas Gravity: Single value (auto-calculates typical dry/wet gas)
  • Design Code/Standard:
    • ISO 13623
    • API RP 14E
    • DNVGL-RP-F110
  • Output Temperature Unit: °C, °F

🧮 Calculations

  • Converts all values to SI units for calculation.
  • Calculates hydrate formation temperature using the Hammerschmidt approximation: T_\\text{hyd} = 19.7 + 6.1 \\log_{10}(P) – 8.8 \\cdot G
    • T: Hydrate temperature (°C)
    • PPP: Pressure (bar)
    • GGG: Gas gravity (air = 1.0, typical natural gas: 0.55–0.75)
  • Compares pipeline operating temperature to hydrate formation temperature.
  • Flags Hydrate Risk if operating temp is below the hydrate temp.

📤 Outputs

  • Hydrate risk status: ✅/⚠️ (with code/standard shown)
  • Hydrate formation temperature (selected unit)
  • Operating temperature (selected unit)
  • Gas gravity used
  • Input pressure (bar)