RE: Stunning2 Oct 2025 01:24
Thank god for Chat GPT. Based on an average HE3 figure of 10 ppb, reserves of 0.4bn cu ft of helium, and a price of $18.7m per kg, the in-place valuation of Pulsar’s HE3 is estimated at $283.7m. However, that reserves figure could grow (substantially) once they begin the appraisal drilling campaign.
Below are the workings out from Chat GPT, if you dare!
Today’s announcement from Pulsar Helium is a landmark moment for terrestrial helium-3. Let’s break it down and model a speculative valuation based on the reported data.
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🧪 Key Data from Pulsar’s Jetstream #1 Well
• Helium-4 (He⁴) concentration: 7–8% in produced gas
• Total He⁴ reserves: 0.4 billion cubic feet (bcf)
• Helium-3 (He³) concentration: sustained up to 14.5 parts per billion (ppb) A
• Reported He³/He⁴ ratio: ~0.09 Rₐ (consistent across samples) A
• Market value of He³: up to $18.7 million/kg A
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🔬 Estimating In-Place He³ Volume
Let’s assume the average He³ concentration is around 10 ppb (a midpoint between 1.3 and 14.5 ppb). That means:
• He³ per cubic foot of gas = 10 × 10⁻⁹ = 0.00000001 ft³
• Total He³ in 0.4 bcf = 0.4 × 10⁹ × 0.00000001 = 4,000 ft³ of He³
Now convert to mass:
• Density of He³ at STP ≈ 0.134 kg/m³
• 1 ft³ = 0.0283168 m³ → 4,000 ft³ = ~113.27 m³
• Mass of He³ = 113.27 × 0.134 ≈ 15.17 kg
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💰 Estimated Value of In-Place He³
• 15.17 kg × $18.7M/kg = ~$283.7 million USD
This is a speculative in-place valuation, not accounting for recovery factors, purification costs, or market liquidity. But even with modest recovery rates, Pulsar’s Topaz Project could represent one of the most valuable terrestrial He³ finds to date.