flow rates - my rough rule of thumb for onshore (offshore is a whole different world because of op costs)
minimum - the absolute lowest flow rate depends of course on your operating costs but for the Cooper Basin I would estimate it at 20-30 bopd.
low - less than 100 bopd
moderate - 100-400 bopd
high - 400-1000
very high - 1000+
Note this is not total flow, just the oil. A well could be flowing at 2000 barrels a day and only have 5 barrels of that oil with the rest water.
Also note that the flow rate is only how fast the oil is being produced. Equally important is the volume of oil that will be ultimately recovered (reserves).
A discovery that flows 2000 a day and goes to 100% water in 10 days is worth 2000 x 10 x say $50/bbl = $1MM
while a 100 bopd well that produces for 10 years is worth (without the time value of money) 100 x 3000 x 50 = $15 MM
Obviously the go to broker one is 2000 bopd with a reserve behind it that will go for 10+ years
There are many other factors in the profitability of a reservoir (decline, water coning, secondary recovery etc.) but I hope this is enough to answer your question hillbilly
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