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Tuesday, November 2, 2010

Remember the Birdbear Formation: Today MRO Reports 39 BOPD From a Birdbear Well (ND, USA)

Remember the Birdbear formation?

Sometime ago the Birdbear formation was getting a bit of press. Today, the only Birdbear well I recall, Marathon's Mylo Wolding 14-11, reported an IP of 39 bopd.

On the daily activity report, the well is reported as producing from the Bakken pool, but the well was advertised as a Birdbear well, at least when I originally recorded the data. It does not have the typical "H" designation suggesting it was not fracked. The very low IP is not consistent with a typical Bakken well. The Birdbear is immediately below the Three Forks which, in turn, is immediately below the Bakken formations (upper, middle and lower).

Updates

Update, November 3, 2010: see first comment below. Apparently this was a vertical test well that finishes in the  Birdbear. Their intention is to test from Lodgepole to Three Forks and possibly produce and test for 90 days up to 3 layers depending on the data they receive from their tests. The article also mentions that they have another well like this elsewhere. For newbies: by law, all core data or the core itself (I forget which) must be sent to the state for archiving and study.

4 comments:

  1. I have read the report. It is a vertical test well that finishes in the birdbear. Their intention is to test from lodgepole to threeforks and possibly produce and test for 90 days up to 3 layers depending on the data they receive from their tests. Marathon is upping the learning curve and undoubtably may find information for future gains through their research. The article also mentions that they have another well like this elsewhere. Way to go marathon. They even drilled and recovered a 60' core for part of their research.

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  2. Thank you for the update and explanation.

    You have no idea how exciting I find all of this: "upping the learning curves."

    Another example of others testing new ideas: I was not aware of simul-fracking until I read about it in an SM (St Mary Land) presentation.

    By the way, I bet "they" are all working hard on finding solutions to lessen the decline rates in the Bakken.

    Lots of exciting stuff in the Bakken.

    Thank you again.

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  3. Marathon did some studies on double frac I suspect a triple or quadriple frac would more likely produce cross communication and may be fully necessary for later recovery methods such as water floods and CO2

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  4. Isn't that interesting? That would make sense. I've heard for an unconventional reservoir like the Bakken, CO2 makes sense theoretically, though water flooding may not.

    Denbury is a huge player in Wyoming area, I believe, for EOR with CO2.

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