by shortonoil » Thu 28 Dec 2017, 16:14:05
$this->bbcode_second_pass_quote('', 'W')hat new shale plays?
Any petroleum source with an ERoEI of 6.9:1 or less (which we have shown to be equivalent to a WOR of 45:1; the point where water drive wells are shut in) is not a long term economical process. Shale has been a financial play participated by low interest rates, and currency creation policies implemented by the central banks. The 4.3% spread between historical interest rates, and ZIRP rates on an $8.5 million Bakken well amounts to $50.55 per barrel over the 10 life expectancy of the well. A review of Bakken wells using the ΔS = m*c*ln(T2/T1) equation (
Entropy Change of an Incompressible Substance*) shows that a Bakken well that comes in at 450 barrels per day, has reached an ERoEI of 6.9:1 in about 10 months or 77,000 barrels of production. After that point they become net energy negative.
The fact that they become net energy negative within their first year means that they must purchase energy from other sources to continue production after that point has been reached. That results in them becoming cash flow negative operations.
The production from the 4598 wells reviewed followed the logistic curve y = 23.35 / (1- 0.95e^(-0.011x)) where x is years from 1900. Over a ten year life expectancy they will produce on average 256,000 barrels. Of their total life time production of 256,000 only 77,000 of those barrels contributed a positive energy supply to the economy. See following posts for an explanation of how this is possible.
https://srsroccoreport.com/u-s-shale-oi ... tay-alive/http://www.thehillsgroup.org*Page 209, Moran and Shapiro, ISBN 0-471-895776-8