OG Suite
Engineering calculation tools grounded in API, ASME, DNV, GPSA, and AMPP standards. Built for Pre-FEED and FEED screening — honest, transparent, and always requiring your engineering judgment.
Available Tools
All tools run entirely in your browser — no installation, no licensing fees. Every output is clearly marked as a preliminary estimate requiring user validation.
OG Cost Estimator
Parametric CAPEX/OPEX modeling using three-method triangulation: equipment factored, analogous project scaling, and weight-based parametric. Explicit P10/P50/P90 output. Includes project economics with DCF, NPV, IRR, and breakeven analysis.
OG Engineering Calculator
Process calculations grounded in published industry standards. Covers separator sizing, pipeline hydraulics, relief valve sizing, heat exchangers, compressors, flare systems, submarine pipelines, riser design, jacket design, helideck sizing, and more.
OG Design Generator
GA drawings, P&IDs, equipment lists, and instrument tagging per ISA-5.1 conventions. Design basis summaries and structured documentation for Pre-FEED packages. Supports separator packages, compression, pump stations, and metering skids.
What These Tools Are
Pre-FEED Screening
Fast, standards-based calculations for concept selection and early cost development. AACE Class 3–4 accuracy (±20–50%).
Transparent Methodology
Every calculation references its governing standard. No black-box results — full source transparency so you can validate and trust what you see.
Your Judgment First
These tools support engineering judgment — they do not replace it. Every output requires review before use in design or construction decisions.
⚠️ Scope & Limitations
Pre-FEED and FEED engineering support only (AACE Class 3–4, accuracy ±20–50%). All calculation results require review by the user before use in design, procurement, or construction decisions. Equipment cost correlations are parametric estimates requiring calibration against current market data. All cost equations, installation factors, and analogue data are flagged for validation.
Ready to run your first calculation?
Apply for beta access and test the OG Suite on your next Pre-FEED project.