Sunday, June 5, 2016

Halo Effect? Nelson Wells In Long Creek Oil Field, The Bakken -- June 5, 2016

Updates

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.
 
Original Note
 
Notes and Disclaimer: in a long note like this there will be typographical and factual errors. It is hard to separate fact from opinion or comment. If there are mistakes on this page, they are mine; the mistakes are not from the reader who sent me this very interesting information. There are quite a few story lines in this post. This is another great post for newbies to read closely.

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.

 ********************************************
Halo Effect
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):
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN4-201629166831588618526315863113915
BAKKEN3-20163119193182592498931174307102
BAKKEN2-20162913307127502200220544201120
BAKKEN1-2016291262311945378491887718080365
BAKKEN12-20153194198948464121329312559272
BAKKEN11-201535497747064894242607
BAKKEN10-20150000000
BAKKEN9-20150000000
BAKKEN8-2015000046200
BAKKEN7-2015128281851360
BAKKEN6-201517111231064333131566714948466
BAKKEN5-20150000000
BAKKEN4-20150000000
BAKKEN3-20150000000
BAKKEN2-20150000000
BAKKEN1-20150000000
BAKKEN12-20140000000
BAKKEN11-20140000000
BAKKEN10-20140000000
BAKKEN9-20140000000
BAKKEN8-20140000000
BAKKEN7-20140000000
BAKKEN6-20140000000
BAKKEN5-20140000000
BAKKEN4-201420234934471114303515241198
BAKKEN3-20143140604059218546653902301
BAKKEN2-201428475243042356740657111278
BAKKEN1-20143177418692345020715104759778
BAKKEN12-2013317589650229571293187073762
BAKKEN11-201330614359433319926928116011
BAKKEN10-2013317013757237521237637058209
BAKKEN9-2013307504741348081178616359704
BAKKEN8-2013308079808148021180748846476
BAKKEN7-2013319228879757521371068686380
BAKKEN6-2013308771902552891186325678849
BAKKEN5-201331806576325370993813938083
BAKKEN4-201317270125681997411823833
BAKKEN3-20132392969113447618056345214231
BAKKEN2-2013281508615002663326318173638538
BAKKEN1-20133119439200948013300581507814518
BAKKEN12-2012311430013548653319118786110795
BAKKEN11-201230134711346361981532153439531
BAKKEN10-201231160171613976621817740617309
BAKKEN9-20123022106221131081230385205827880
BAKKEN8-20121215835146422229517106016927

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