by skyemoor » Sun 30 Dec 2007, 10:53:56
$this->bbcode_second_pass_quote('TheDude', '
')Bakken is held back by its flow rates, as I've explained about 20 times.
Yes, though some persist in spinning cornucopian fantasies. Let's examine one such...
$this->bbcode_second_pass_quote('Oil-Finder', '
')The US side of the
Williston Basin, which contains the Bakken formation, encompasses approximately 143,000 square miles.
My research on Bakken well production indicates that, after an initial period of high production lasting a few months to a year, flow rates stabilize at around 150-300 bpd and stay that way for an extremely long time (
source,
source, and
source).
I have read well spacing patterns in the Bakken including
160 acres,
40 acres, and
640 acres (1 square mile). Let's be conservative and go with 1-square-mile spacing.
Let's say that only 1/4 of the square miles in the Williston Basin end up with oil wells on them (sounds reasonable?). That would be 35,750 square miles, and thus, 35,750 wells using our spacing pattern.
Let's assume a low-ish average production rate of 200 bpd per well. With that figure, 35,750 wells would produce
7.15 million barrels/day.
According to this
here, the average cost of a well in the Williston Basin is up to $3-$5 million, though I've seen figures as low as $2 million, and even less for some Canadian sources.
Let's go with an average of $4 million each. At that price, 35,750 wells would cost
$143 billion total.
Sounds like a lot, doesn't it? But keep in mind that Petrobras expects to spend
$50-$100 billion just to develop the 5-8 billion barrels in Tupi. Suddenly the Bakken looks like a bargain.
And before you gasp at the 35,750 wells, keep in mind that Pemex expects to drill
13,500 wells to develop Chicontepec over the next 15 years.
To be sure, developing the Bakken to high production rates could take 10-20 years, but there's nothing un-doable about it. And it would hardly be the first time a large oil formation took a decade or more to fully develop!
1. The paper on nd.gov that Oil-Finder relies on is non-attributed; there are no authors or date of publication on it anywhere. Hence, we have little to go on with regards to the knowledge and veracity of the author/authors besides the gross indicator of the website itself.
2. The author/authors state "The methods used by Price to determine the amount of hydrocarbons generated by the Bakken are different from the traditional petroleum geochemical practices and are under dispute."
3. The 'research' performed by Oil-Finder (OF) resulted in these findings;
$this->bbcode_second_pass_quote('', 'T')he first well drilled was the Burau 4 well in Burau County. Although oil and gas indications were not detected during drilling, the well was completed and is producing at a stabilized rate of approximately