A huge "thank you" to a reader for sending me this one.
Doing things a bit differently, let's look at this well back in 2014. Here is the production profile for this well back in 2013 - 2014, 500 to 600 bbls per month (the four column is "oil production"):
BAKKEN | 12-2014 | 31 | 313 | 243 | 8 | 601 | 594 | 7 |
BAKKEN | 11-2014 | 30 | 600 | 690 | 67 | 1406 | 1332 | 75 |
BAKKEN | 10-2014 | 31 | 694 | 699 | 62 | 1577 | 1476 | 101 |
BAKKEN | 9-2014 | 30 | 739 | 668 | 143 | 1695 | 1690 | 6 |
BAKKEN | 8-2014 | 26 | 703 | 639 | 120 | 1242 | 1230 | 12 |
BAKKEN | 7-2014 | 24 | 428 | 675 | 42 | 1398 | 783 | 0 |
BAKKEN | 6-2014 | 15 | 387 | 226 | 92 | 665 | 335 | 0 |
BAKKEN | 5-2014 | 29 | 541 | 657 | 52 | 1645 | 1028 | 0 |
BAKKEN | 4-2014 | 30 | 613 | 453 | 103 | 1343 | 682 | 0 |
BAKKEN | 3-2014 | 31 | 666 | 711 | 123 | 1837 | 1155 | 0 |
BAKKEN | 2-2014 | 28 | 636 | 647 | 67 | 2058 | 1442 | 0 |
BAKKEN | 1-2014 | 31 | 659 | 705 | 48 | 2027 | 1363 | 0 |
BAKKEN | 12-2013 | 31 | 693 | 458 | 118 | 2326 | 1659 | 0 |
BAKKEN | 11-2013 | 30 | 676 | 713 | 70 | 1849 | 1200 | 0 |
BAKKEN | 10-2013 | 31 | 700 | 686 | 0 | 2072 | 1389 | 0 |
BAKKEN | 9-2013 | 30 | 598 | 679 | 123 | 1989 | 1329 | 0 |
BAKKEN | 8-2013 | 31 | 707 | 682 | 98 | 1827 | 1145 | 0 |
This well was so "bad" it met the definition of a "stripper well" as defined by North Dakota, and on November 19, 2014, the operator applied for Stripper Well status for this well. In the letter requesting stripper well status, the operator wrote: "The well produced from a well depth greater than 10,000 feet. During the qualifyign period, September 1, 2012, through August 31, 2013, the well produced a maximum efficient rate and the average daily production from the well was 24.2 bopd during this period."
Fast forward to the latest six months of production. See if you can spot the anomaly. To make it easier, I've put it in bold red:
Pool | Date | Days | BBLS Oil | Runs | BBLS Water | MCF Prod | MCF Sold | Vent/Flare |
---|---|---|---|---|---|---|---|---|
BAKKEN | 11-2015 | 29 | 11850 | 11980 | 5006 | 20830 | 9118 | 10867 |
BAKKEN | 10-2015 | 21 | 6234 | 5638 | 2371 | 10848 | 2997 | 7462 |
BAKKEN | 9-2015 | 23 | 162 | 226 | 45 | 1002 | 184 | 424 |
BAKKEN | 8-2015 | 31 | 761 | 687 | 275 | 2907 | 972 | 975 |
BAKKEN | 7-2015 | 31 | 433 | 419 | 122 | 2295 | 355 | 979 |
BAKKEN | 6-2015 | 28 | 618 | 693 | 78 | 2298 | 348 | 114 |
Maybe it's just me, but I find that incredible. For some reason, this well jumped in crude oil production as much as 20-fold (20 x 500 = 10,000). Note also the jump in natural gas sold (2nd to last column).
There is no indication of any direct work on this well in the well file. The reader states that this well has always been a poor well, due to a dropped tool in the well that was never recovered. If that was mentioned in the file report, I missed it, but it makes sense and explains the production profile.
The question is: what might explain a 20-fold jump in production?
Let's look at the GIS map server to see where this well is located. The GIS map server does not yet show the horizontals of the Skaar Federal wells that "engulf" the index well. But based on the permit applications, I've drawn in the arrows where I think the horizontals will go. I apologize for the "busy-ness" of the graph. Among the arrows, the index well (production profile noted above) is almost lost:
Okay, now let's go back to some dates. Go back up to the production profile in which the production well jumped 20-fold. When did that happen? Between August and October, 2015. The Skaar Federal wells were fracked in September/October, 2015:
- 30739, 1,243, Three Forks B1, 48 stages, 7 million lbs, t9/15;
- 30740, 1,019, middle Bakken, 48 stages, 7 million lbs, t9/15;
- 30741, 1,085, Three Forks B1, 41 stages, 7 million lbs, 9/15;
- 30742, 1,736, middle Bakken, 48 stages, 11 million lbs, 10/15;
- 30743, conf,
- 17758, 617, Newfield, Alice Federal 1-28H, Sand Creek, t8/09; cum 102K 11/15;
*********************************************
As incredible as all that is, there is even more to the story. I will follow that up in another post, later. This post is getting way too long.
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30739:
Pool | Date | Days | BBLS Oil | Runs | BBLS Water | MCF Prod | MCF Sold | Vent/Flare |
---|---|---|---|---|---|---|---|---|
BAKKEN | 11-2015 | 29 | 17244 | 17053 | 10041 | 32076 | 30614 | 1218 |
BAKKEN | 10-2015 | 22 | 19709 | 19416 | 9946 | 32417 | 27615 | 4611 |
30740:
Pool | Date | Days | BBLS Oil | Runs | BBLS Water | MCF Prod | MCF Sold | Vent/Flare |
---|---|---|---|---|---|---|---|---|
BAKKEN | 11-2015 | 29 | 20350 | 19990 | 7234 | 38672 | 37584 | 843 |
BAKKEN | 10-2015 | 20 | 18280 | 18094 | 7782 | 31072 | 26364 | 4535 |
30741:
Pool | Date | Days | BBLS Oil | Runs | BBLS Water | MCF Prod | MCF Sold | Vent/Flare |
---|---|---|---|---|---|---|---|---|
BAKKEN | 11-2015 | 29 | 15884 | 15706 | 12024 | 29223 | 28307 | 665 |
BAKKEN | 10-2015 | 22 | 15042 | 14779 | 15647 | 28146 | 25470 | 2486 |
30742:
Pool | Date | Days | BBLS Oil | Runs | BBLS Water | MCF Prod | MCF Sold | Vent/Flare |
---|---|---|---|---|---|---|---|---|
BAKKEN | 11-2015 | 29 | 15884 | 15706 | 12024 | 29223 | 28307 | 665 |
BAKKEN | 10-2015 | 22 | 15042 | 14779 | 15647 | 28146 | 25470 | 2486 |
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