Update
March 8, 2012: the discussion continues. An individual from Hawaii has summarized my thoughts quite well. Check out "kuaudave" and his/her comments at
this link, March 8, 12:03 a.m.
March 6, 2012: Teegue's board is nothing if it's not predictable -- today Teegue suggested the topic be taken over to the water cooler if "they" introduce politics into the discussion. I did not see any indication of politics in the discussion, but I did see a lot of apologies to Teegue. "They" desperately don't want to be kicked off the discussion board. I see that the most recent post (by BRI-VA) references my blog which is
blogga-non-grata. It will be interesting to see what the response is. Generally, Teegue will respond that this blog is a joke and he won't "recognize" it. In this case, BRI-VA is only referencing a very important link for surface owners which I can guarantee practically no one on the Bakken Shale Discussion Group has seen. BRI-VA takes great risk in referencing this blog. If one references my blog at that site more than once, they are generally threatened with being "kicked off the island." A third time, and it's all over.
March 6, 2012: Wow, I think it's time for Dufus to take the conversation over to the water cooler, over at Teegue's Bakken Shale Discussion Group. (See link below.) Teegue is starting to get a bit hot under the collar (see Teegue's long entry at the link this date). In my eyes, Teegue has always been correct with regard to the Bakken, but I think he is wrong in this case. Read the entire thread at the link below. Then come back here and read the following. Tight oil/unconventional oil/shale oil is something new for everyone involved. One can argue, under oath, that a single horizontal well can drain a 1,280-acre spacing unit, but it will take 30 years or longer, and a lot of oil will be left behind because of the ineffectiveness of the frack more than 500 feet away. One can argue that by putting in additional wells/infill wells/density wells one can drain the spacing unit in a shorter period of time, and, oh by the way, recover more oil than a single horizontal. Teegue is thinking like a non-participating mineral rights own who inherited a few acres from his grandfather; others are thinking like oilmen. Much more could be written, but it starts to open more Pandora boxes.
March 5, 2012: I hope the folks who argue against Teegue know they could be excluded from the discussion group.
Original Post
Elsewhere there is a nice discussion regarding the optimum lateral spacing for horizontal wells in the Bakken.
There are several issues brought up: how far from the lateral is oil recovered; is technology changing things; do models have to be updated; are EURs increasing due to improving technology and experience? It's a messy discussion (skipping from topic to topic) but the data points are interesting and helpful in understanding the Bakken.
This was the question, and rhetorical answer:
The original question asked here was how far oil is recovered from the lateral. Marathon's evidence shows it is recovered from at least 3/4 mile over 25 years, upon which legal determinations have been made regarding that only one well is necessary in a unit.
I guess there are at least two questions: a) how far is oil recovered from a lateral; and, b) how far out is fracking effective, which I started discussing a long, long time ago, and a question that operators are discussing in their corporate presenations.
I do agree that EURs are increasing due to improving technology and experience.
I understand "pressure" arguments for liquid pools; I don't understand "pressure" arguments as well when discussing "tight" or shale oil.