The article states the reserves are recoverable with todays technology.
www.in-forum.com wrote:The U.S. Geological Survey said Tuesday that the Williston Basin has between 4.4 billion and 11.4 billion barrels of oil that is recoverable with today’s technology.
Im not sure the date on the reports research but drill and recovery technology is always changing. Does this report include verticle stacking, frack zone variations, bore size and down hole operating pressures, "water" mix and dont forget multi-bore platforms?
www.in-forum.com wrote:geologists and industry leaders said Tuesday that the estimate is conservative and will only get bigger as technology advances.
I wonder what these estimates are doing to the eroei of oil? The equation is:
energy out/energy in. Doubling energy out without a corresponding increase in energy in will make that eroei soar to the sky. You see, when they double the energy out estimate that means twice the energy for each and every well drilled or yet to be drilled with todays technology. So, we have the energy out doubling and the energy in staying the same or dropping because a lot of wells are already drilled. What's the effect on eroei, up or down?
An interesting article on Seeking Alpha today reveals the rapidly expanding shale oil/gas development now underway in the US lower 48. The Bakken is only scratching the surface
, and probably not even half accounted for itself in the "official" USGS estimates. The scorn at the first round of USGS estimates telling us it was the largest oil reserve they had ever analysed was similar to the scorn we see with the doubling announcement!
The Bakken is now twice as big as the largest oil reserve the USGS has ever studied!
The next big announcement about the Bakken is going to be the expanding geographical extent. It is probably twice the size often defined on maps. The leasing activity and all the seismic exploration done between the eastern slope of the northen rockies east and south to the Dakotas is a big hint. By the time this thing is over the Bakken will be twice the size it is now and they are going to get over half the oil.