by AdamB » Sun 16 Oct 2016, 10:04:14
$this->bbcode_second_pass_quote('ROCKMAN', 'A')dam - And adding to the confusion...from the EIA:
Tight gas (or oil) refers to natural gas (or oil) produced from low-permeability sandstone and carbonate reservoirs."
So how does one classify production from a Permian Basin well drilled horizontally and frac'd in a low permeability sandstone and carbonate CONVENTIONAL reservoir?
I attended the most recent EIA conferences and spoken with those folks, they really don't like calling shale production shale production, because of the issues of migration from source rock to a nearby by "tight" formation, such as the Middle Bakken, compared to the upper and lower , which are shale, and the middle which isn't. Shales being low permeability, it really seems easier to just lump shales with tights and call everything tight gas or oil.
So that scheme makes perfect sense in terms of how to differentiate normal production from tight production, WITHOUT getting conventional/unconventional involved. The terms I've heard them use are "discretely reservoired" versus "light/tight oil/gas", skipping the entire conventional/unconventional nonsense altogether. Seems like a reasonable compromise, and recognizes that nobody gives a crap about unconventional/conventional when in fact oil is oil, gas is gas, it is trapped in rocks of all types and permeability, and regardless of the rock it sits in, it can be turned into the products the consumer wants, and in the end that is all that matters.
Plant Thu 27 Jul 2023 "Personally I think the IEA is exactly right when they predict peak oil in the 2020s, especially because it matches my own predictions."
Plant Wed 11 Apr 2007 "I think Deffeyes might have nailed it, and we are just past the overall peak in oil production. (Thanksgiving 2005)"