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tnav-reservoir-sim

Emulate tNavigator reservoir simulation workflows for educational petroleum engineering tasks.

Updated Mar 5, 2026
Search Tags:#petrophysics#nodal analysis#reservoir simulation#PVT#decline curve analysis#tNavigator
One-click install
npx skills add https://github.com/jpfielding/claude.pnge --skill tnav-reservoir-sim
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: tnav-reservoir-sim
Source: https://github.com/jpfielding/claude.pnge/tree/main/skills/tnav
Command: npx skills add https://github.com/jpfielding/claude.pnge --skill tnav-reservoir-sim

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides an educational emulation of complex reservoir simulation tasks, making advanced petroleum engineering concepts accessible without requiring specialized software.

Core Features & Use Cases

  • .DATA File Generation: Create sections for simulation input files (RUNSPEC, GRID, PROPS, etc.).
  • PVT Calculations: Compute essential fluid properties like Z-factor, FVF, viscosity, and bubble point.
  • Decline Curve Analysis: Perform Arps decline analysis for production forecasting.
  • History Matching: Utilize LHS and PSO for parameter optimization.
  • Nodal Analysis: Generate VFP tables and perform IPR-VFP intersection for well performance.
  • Petrophysics: Apply Archie's equation and basic geostatistical concepts.
  • Use Case: A student needs to understand how changing reservoir pressure affects oil recovery. They can use this skill to run a quick sensitivity analysis using material balance, generating a plot of recovery factor vs. pressure.

Quick Start

Use the tnav-reservoir-sim skill to calculate the Z-factor for a gas at 3000 psia and 200F with a gas gravity of 0.7.

Frequently Asked Questions about tnav-reservoir-sim

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate a .DATA file for reservoir simulation input?▼

Reservoir simulation .DATA file generation creates sections like RUNSPEC, GRID, and PROPS for simulation input files. This educational emulation covers the standard section structure needed for black oil and compositional models.

Can I calculate PVT properties like Z-factor and bubble point without specialized software?▼

Yes, PVT calculations compute fluid properties including Z-factor, formation volume factor, viscosity, and bubble point using Peng-Robinson EOS. You can calculate values like the Z-factor for a gas at specified pressure, temperature, and gravity conditions.

How does Arps decline curve analysis work for production forecasting?▼

Arps decline curve analysis models production rate decline over time for forecasting. The skill performs Arps decline calculations to predict future production from historical well data, supporting hyperbolic, exponential, and harmonic decline modes.

What is involved in history matching for reservoir simulation parameter optimization?▼

History matching optimizes reservoir parameters using Latin Hypercube Sampling (LHS) and Particle Swarm Optimization (PSO). These methods adjust model variables to align simulated outputs with historical production data, improving model accuracy.

Can I perform nodal analysis and IPR-VFP intersection for well performance evaluation?▼

Nodal analysis evaluates well performance by generating VFP tables and computing IPR-VFP intersections. The skill applies Vogel IPR and Beggs-Brill multiphase flow correlations to determine optimal well operating points.

Do I need specialized software to apply Archie's equation for petrophysical analysis?▼

No, Archie's equation for petrophysics is applied directly within this emulation without requiring specialized petroleum software. The skill calculates water saturation from formation resistivity and incorporates basic geostatistical concepts for reservoir characterization.

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