APIs › Petroleum Engineering Calculators › CO₂ Emissions Estimate

CO₂ Emissions Estimate

Estimates CO₂-equivalent emissions from fuel or flare volumes using published emission factors, citing the factor source and its uncertainty.

POST /v1/petroleum/co2-emissions-estimate $0.03 per call

Specification

Endpoint

POST /v1/petroleum/co2-emissions-estimate

Price

$0.03 per call · tier strategy_intelligence

Payment

x402 on X Layer (chain 196) · settled in USDG or USDT0 · scheme exact

Data source

Published petroleum-engineering correlations, cited per endpoint

Timeout

15 seconds

Max request

64 KB

Version

1.0.0

Calling it

The first call returns a 402 with the payment challenge. Retry with a signed authorisation in the X-PAYMENT header — see the payment guide for the exact shape.

curl -i -X POST "https://api.dana-edu.pp.ua/v1/petroleum/co2-emissions-estimate" \
  -H "content-type: application/json" \
  -d '{ ... }'

Response

Real output, captured by running this endpoint at build time — not written by hand. Volatile fields such as timestamps are elided. Captured 2026-07-30.

{
  "total_kg_co2e": 374000,
  "total_tonnes_co2e": 374,
  "uncertainty_range_tonnes": {
    "low": 319.3,
    "high": 428.7
  },
  "breakdown": [
    {
      "fuel": "flared_gas",
      "quantity": 120000,
      "unit": "sm3",
      "factor_kg_per_unit": 2,
      "kg_co2e": 240000,
      "relative_uncertainty": 0.2,
      "source": "IPCC 2006 Vol.2 Ch.4 flaring, assuming 98% combustion efficiency",
      "share_pct": 64.17
    },
    {
      "fuel": "diesel",
      "quantity": 50000,
      "unit": "litre",
      "factor_kg_per_unit": 2.68,
      "kg_co2e": 134000,
      "relative_uncertainty": 0.05,
      "source": "IPCC 2006 Vol.2 Ch.1 (74.1 kg CO2/GJ, gas/diesel oil)",
      "share_pct": 35.83
    }
  ],
  "scope": "Scope 1 direct combustion and flaring/venting only. Excludes Scope 2 purchased energy unless electricity_grid was supplied, and excludes all Scope 3 value-chain emissions.",
  "references": [
    "IPCC 2006 Guidelines for National Greenhouse Gas Inventories, Volume 2",
    "IPCC AR5 GWP100 values for non-CO₂ gases"
  ],
  "note": "Screening-level engineering result. It does not replace a commercial simulator, a laboratory PVT measurement, or review by a qualified engineer. Emission factors are defaults, not measurements. A reportable inventory requires operator-specific factors, metered quantities, and verification against the applicable protocol."
}

Every response is wrapped in the same envelope: data plus warnings, sources, confidence, informational_only and a measured processing_ms. See the envelope reference.

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