Later, 12:53 p.m. Central Time: wow, this just gets better and better. I will add more but it will be a stand-alone post. This note is already too long; too much to absorb.
A reader sent a note regarding some thoughts on Zavanna.
First, the reader provided this Facebook link: https://www.facebook.com/Flatirons-Field-Services-301042033405043/.
Then the comments:
One of the pictures at the Facebook link shows:
- Inlet Low Pressure Pipeline, Gas Lift Return, Medium Pressure, and Summit Oil line in the ditch adjacent to the plant.
Dry gas returns to the wells and to the Zavanna gas lifts. I think it explains part of the high gas numbers from the wells. The gas-sale spreadsheets from Zavanna are very different from the gas numbers from the well production data.
Long Creek at this link (has not been updated)(T153N-R99W), from the reader:
My guess is that Zavanna is testing 50 stages in the six (6) new wells in section 2 and 11 and 35 stages in section 3 and10. Also: note the different layout of the middle Bakken wells compared to the layout of the Three Fork wells. One wonders if this is a testing bed for optimizing production of future wells.
The reader also noted the incredible "halo effect" after neighboring Three Forks wells were stimulated. The "original" middle Bakken well was drilled back in 2012. Its production had declined to less than 4,000 bbls/month (before the Saudi Surge). The well was taken off-line for a full year in 2014/2015 (see monthly production figures below) and then back online for a month before it was taken off-line again while the neighboring Three Forks wells were fracked.
- 20085, 825, Zavanna, Nelson 3-10 1H, Long Creek, 35 stages; 3.8 million lbs; t8/12; cum 292K 4/16; off-line many months; see much more about this well as this post;
- 26676, 630, Zavanna, Nelson 3-10 3TFH, Long Creek 35 stages, 6 million lbs, t12/15; cum 88K 4/16;
- 26677, 695, Zavanna, Nelson 3-10 2TFH, Long Creek, total drilling days, 28; "the Three Forks is sourced by the Lower Bakken member"; benches mentioned; "the first bench of the Three Forks is the zone of interest for oil production"; gas shows as high as 6,500 units; difficult to stay in target; majority of the lateral was drilled just above the ideal target zone (2 - 3 feet in TVD); reported dated July 22, 2014; 100% within TF first bench; 35 stages, 6 million lbs; t12/15; cum 92K 4/156;
The reader asks this very interesting question with regard to the Long Creek area: are the wells targeting the first bench of the Three Forks formation better than the middle Bakken wells?
Answer: Lynn Helms said some years ago that mano a mano, Three Forks, first bench wells are likely to be better than middle Bakken wells.
Because of the Saudi Surge, it may be difficult to extrapolate from production numbers because operators will "manage" their production closely during periods of low commodity prices.
The NDIC GIS map server appears to be down at the moment. When it comes back up I will provide a screen shot of the map where these wells are located. A map does exist at the above-linked site.
A middle Bakken well, before and after neighboring Three Forks 1st bench were fracked:
- 20085, 825, Zavanna, Nelson 3-10 1H, Long Creek, 35 stages; 3.8 million lbs; t8/12; cum 292K 4/16:
Monthly Production Data (in bold red: neighboring Three Forks wells had just been fracked; tested 12/15):
|Pool||Date||Days||BBLS Oil||Runs||BBLS Water||MCF Prod||MCF Sold||Vent/Flare|