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NeqSim (Equinor)

Free

Give a gas or oil composition and get its phase behavior, dew point, phase envelope, or heating value.

No key required. Included on Free.

Questions you can ask

  • “Flash this gas at 20 C and 50 bara: 85% methane, 7% ethane, 3% propane, 2% n-butane, 3% decane. How much liquid drops out?”
  • “What are the cricondenbar and cricondentherm of this gas condensate?”
  • “Heating value and Wobbe index of this sales gas per ISO 6976.”
Sample outputfor “Flash this gas at 20 C and 50 bara.”
PhaseMole fractionDensity (kg/m3)Viscosity (cP)
Gas0.94042.80.0121
Oil0.0606670.388

Illustrative values showing the shape of an answer, not live data.

Connect to your AI assistant

Paste this URL into Claude, ChatGPT, or any MCP client, then sign in when prompted. NeqSim (Equinor) is ready as soon as you sign in.

https://patchops.ai/api/mcp

Claude: use Add to Claude, or Settings > Connectors > Add custom connector and paste the URL.

Claude Code

claude mcp add --transport http patchops https://patchops.ai/api/mcp

Step by step

  1. 1

    Open connectors

    In Claude, open Settings > Connectors and click "Add custom connector".

  2. 2

    Paste the URL

    Name it PatchOps and paste https://patchops.ai/api/mcp as the server URL, then click Add.

  3. 3

    Sign in

    Click Connect and sign in to PatchOps when Claude asks.

  4. 4

    Start using

    Ask Claude a question. It uses NeqSim (Equinor) through PatchOps when it needs to.

› Technical details

Natural gas and oil phase behavior and gas quality from a composition, computed with Equinor NeqSim thermodynamics.

View the data contract and method schemas →