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Tuesday, November 5, 2013

Interesting Case Study -- Bakken 101 -- EOG's Bear Den Wells In The Spotted Horn Oil Field

Updates

 May 11, 2019: production data has been updated; the map of the area looks to be unchanged;

December 9, 2018: wells in this area --
  • 23064, 459, EOG, Bear Den 108-1708H, Spotted Horn, 4 sections, t6/13; cum 462K 3/19; cum 533K 10/22;
  • 23066, two-section spacing; 1280-acre spacing; 261, EOG, Bear Den 102-1708H, Three Forks, 51 stages; 10.3 million lbs sand; t6/13; cum 470K 3/19; cum 553K 10/22;
  • 23065, two-section spacing; 1280-acre spacing; 282, EOG, Bear Den 20-1708H, middle Bakken, 48 stages; 9.8 million lbs sand; t6/13; cum 473K 3/19; cum 555K 10/22;
  • 19170, single section; 640-acre spacing; 1,882, EOG, Bear Den 07-17H, middle Bakken; 15 stages; 2 million lbs; t1/11; cum 276K 3/19; cum 297K 10/22;

  • 23063, 1,418, EOG, Bear Den 100-2017H, Spotted Horn, 4 sections, t813; cum 548K 3/19; cum 639K 10/22;
  • 19157, 1,476, EOG, Bear Den 04-20H, Spotted Horn, one-section spacing; t3/13; cum 315K 3/19; cum 352K 10/22;
  • 23062, 455, EOG, Bear Den 101-2019H, Spotted Horn, 4 sections, t813; cum 407K 3/19; cum 480K 10/22;
  • 23061, 1,206, EOG, Bear Den 23-2019H, Spotted Horn, 4 sections, t813; cum 376K 3/19; cum 447K 10/22;

July 12, 2018: production data updated below. Graphic updated:


March 2, 2017: see production profile update of #19170 at this post. 

May 18, 2014: Be sure to read the original post first about this older Bakken well being re-entered and re-completed. Compare total production now with that back in September 2013. Today:
  • 19157, 1,476, EOG, Bear Den 04-20H, Spotted Horn, one-section spacing; t3/13; cum 315K 3/19; look at the huge jump in production after a re-completion:
BAKKEN3-20142244634553137038623146614
BAKKEN2-201428874785562869978061043556
BAKKEN1-201423464740100
BAKKEN12-201322582558402161702858641059
BAKKEN11-201322852985783724915238555194
BAKKEN10-2013261645816612592615749101045522
BAKKEN9-20131714218136886501823
BAKKEN8-20130000000

Original Post 
 
This morning I posted a random note about wells that are re-entered and wells that are being re-completed.

Kent added another one:
  • 19157, 1,476, EOG, Bear Den 04-20H, Spotted Horn, one-section spacing; t3/13; cum 302K 5/18 (will be updated above);
Look the production during the period noted below, #19157:

BAKKEN9-20131513971135726501300
BAKKEN8-20130000000
BAKKEN7-20130000000
BAKKEN6-20130000000
BAKKEN5-20130000000
BAKKEN4-20130000000
BAKKEN3-20130000000
BAKKEN2-20130000000
BAKKEN1-20131214802184340118101121
BAKKEN12-2012223185297055029996142279
BAKKEN11-20123026592543486237002220
BAKKEN10-201230213321971721837561631

Before talking about this well, here are screen shots of the NDIC GIS map of the area where this well is drilled, progressively zooming in:

The first screen shot: the general area, Spotted Horn oil field. Note: the "purple" is the 2560-acre spacing unit (4-section, L-shaped spacing unit):


Now, the second screen shot, zooming in to look at the wells that have been drilled (note the short laterals and the long laterals):


Finally, the third shot, including the well that is still in confidential status (#23064):


There are a number of data points regarding the area in purple:
  • when checking the Bakken spacing on the NDIC GIS map server, only "2560-acre" shows up
  • in other words, when checking the area in purple for Bakken spacing, neither 1280-acre nor 640-acre spacing shows up
Now look at the spacing of these four wells according to the NDIC data base:
  • 23066, two-section spacing; 1280-acre spacing; 261, EOG, Bear Den 102-1708H, Three Forks, 51 stages; 10.3 million lbs sand; t6/13; cum 445K 5/18;
  • 23065, two-section spacing; 1280-acre spacing; 282, EOG, Bear Den 20-1708H, middle Bakken, 48 stages; 9.8 million lbs sand; t6/13; cum 453K 5/18;
  • 19170, single section; 640-acre spacing; 1,882, EOG, Bear Den 07-17H, middle Bakken; 15 stages; 2 million lbs; t1/11; cum 269K 5/18;
Likewise, Bear Den 04-20H is single-section spacing (640-acre spacing):
  • 19157, single section; 640-acre spacing; 1,476, EOG, Bear Den 04-20H, middle Bakken; 15 stages; 2 million lbs, t3/11; cum 157K 9/13; production of #19157 (also shown above):
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN9-20131513971135726501300
BAKKEN8-20130000000
BAKKEN7-20130000000
BAKKEN6-20130000000
BAKKEN5-20130000000
BAKKEN4-20130000000
BAKKEN3-20130000000
BAKKEN2-20130000000
BAKKEN1-20131214802184340118101121

*******************************

Look at the production of some of the other wells in the spacing unit in purple above:

Look at #23065:

PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN9-201326284782871115432474791287834475
BAKKEN8-20132840175406372112344016532138560
BAKKEN7-201349122743375201800
BAKKEN6-2013410949722108060799

Look at #23064:

PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN12-2013171080211397399716616103406216
BAKKEN11-201327301552944413873441301640327597
BAKKEN10-2013181543216363741623907272721097
BAKKEN9-201326268092711215302447121212632462
BAKKEN8-20132840344399202835550314608444094
BAKKEN7-20131466038824807100
BAKKEN6-201391323208810033670338
BAKKEN5-201329120801800


Look at #19170:

PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN9-20132595319617778716022432411575
BAKKEN8-20132413662132021166543675163737
BAKKEN7-2013004550000
BAKKEN6-201322409336386744206501958
BAKKEN5-20130000000
BAKKEN4-20130000000
BAKKEN3-20130000000
BAKKEN2-20130000000
BAKKEN1-20130000000
BAKKEN12-20120000000
BAKKEN11-20120000000
BAKKEN10-20120000000
BAKKEN9-20120000000
BAKKEN8-20120000000
BAKKEN7-201233911231755020488
BAKKEN6-20122933503191755446404321
BAKKEN5-20123138264769784484004685

****************************

There are additional wells planned for this 2560-acre spacing unit.

By the way, did you all notice where the Spotted Horn oil field was located? Yup, right next to the incredible Clarks Creek and Antelope fields where EOG is also reporting some incredible wells. It looks like we're back to just getting started in the Bakken. 
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4 comments:

  1. KenSchmidtNovember 5, 2013 at 5:48 PM

    Bruce,

    There are also three wells drilled on the same pad as well 19170 Bear Den 07-17H. One will come off confidential this month. The three wells on the pad in Section 20 will be off confidential in Dec (2) and Feb. (1).

    ReplyDelete
    Replies
    1. Bruce OksolNovember 5, 2013 at 6:29 PM

      Thank you. In fact, I've added the "Bear Den" wells to the "Families Of Wells" at the sidebar at the right. I think about a year from now there will be so much data coming out of the Bakken, I won't be able to keep up any more. I will only be able to follow one field. Smile. Perhaps the Sanish.

      Delete
    2. KenSchmidtNovember 6, 2013 at 7:25 AM

      I would like to thank you for this site. A little over a year ago I didn't know diddly about this industry or the Bakken. Thanks to this site and so many other sites I read about on here I actually know something. Also "that other site" has convinced me it is a site for whinners

      Delete
    3. Bruce OksolNovember 6, 2013 at 8:13 AM

      Thank you for your kind comments.

      I was kicked off the "other site."

      The best overall site explaining the Bakken and unconventional oil is RBN Energy which I link almost every day.

      I've also had a lot of help from folks like you, and from several readers named Mike, and several readers named Don.

      Delete

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