I have done the math.
Input to the module 2500mcf/day (2.5mmcf/d) so given average about 288mcf per well 8 wells are needed. Then average helium concentration about 2.87% so the output is 22813mcf/year of helium (22.813mmcf/yr)
So the helium output is less than half the 50mmcf/yr hoped for. That's for Galactica/Pegasus for Voyager I don't see the flow rate(s) but there it has 8.8% helium but maybe low flow rates as not provided?
Spot prices of US$1000/mcf + can BNL get such high prices with just gaseous helium? Maybe US$600/mcf + is possible or over US$1000/mcf in severe shortages of helium. Consider transporting gaseous versus liquid etc.. Also if BNL needs loans no offtakes to underpin the loan will be at sky high spot prices but at long-term bulk rates of maybe US$400/mcf at a guess which is about AUD$14m/yr in revenues. Obviously the revenues will be a fair bit higher if BNL can tap into any spot sales or get a higher bulk rate.
Ann: Quarterly Activities/Appendix 5B Cash Flow Report, page-51
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