5,000 to 100,000 gallons by volume
or 21 tons to 416 tons by mass
- 1-18 130 BBL Dragon Tanker trucks by volume
- 0.5x to 4x 100 ton hopper train cars by mass
What started me thinking about this again:
He says that 0.5% per frack is 5,000 gallons.
This assumes the volume of the fracking fluid is 1M gal.
This might be true in Colorado, but in PA it's more like 4.3M gallons per frack.
Also, these data are several years old now.
Since they are going out on longer laterals now,
it could be more like 5M+ gallons today.
So it turns out 5,000 gal is really a lower bound.
It could go up to 100,000 gallons
Also 0.5% is conservative. Industry claims frack fluids can be up to 2% chemicals.
- So 5,000 gallons pf chemicals per frack is really a lower-bound,
- Whereas 25,000 gallons per well (0.5% of 5M gallons)
is probably more nominal for a PA well (actually a lower bound).
- and it could be as high as 100,000 gallons of chemicals per frack.
(2% of 5M gallons).
Also, is it percent by volume or percent by mass?
The frackers don't say. So another way of estimating chemicals is like this.
1 gal of water = 8.32487 lbs.
1,000,000 gallons of water = 8,324,870 lbs.
- 0.5% of 1M gallons = 8,324,870 lbs.* 0.005 = 41,624 lbs = 21 tons (lower bound Colorado well)
- 2% of 1M gallons = 8,324,870 lbs.* 0.02 = 166,497 lbs = 84 tons (upper bound Colorado well)
- 0.5% of 5M gallons = 8,324,870 lbs.* 0.005 * 5 = 208,122 lbs = 104 tons (lower bound for PA well)
- 2% of 5M gallons = 8,324,870 lbs.* 0.02 * 5 = 832,487 lbs = 416 tons (upper bound PA well)
Summary: the amount of chemicals per frack are estimated as
- 5,000 gallons or 21 tons (assuming 1M gallons per frack 0.5% chemicals)
- 20,000 gallons or 84 tons (assuming 5M gallons per frack 2% chemicals)
- 25,000 gallons or 104 tons (assuming 5M gallons per frack 0.5% chemicals)
- 100,000 gallons or 416 tons (assuming 5M gallons 2% chemicals)
May you, and all beings
be happy and free from suffering :)
-- ancient Buddhist Prayer (Metta)