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.

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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):

Pool	Date	Days	BBLS Oil	Runs	BBLS Water	MCF Prod	MCF Sold	Vent/Flare
BAKKEN	4-2016	29	16683	15886	18526	31586	31139	15
BAKKEN	3-2016	31	19193	18259	24989	31174	30710	2
BAKKEN	2-2016	29	13307	12750	22002	20544	20112	0
BAKKEN	1-2016	29	12623	11945	37849	18877	18080	365
BAKKEN	12-2015	31	9419	8948	46412	13293	12559	272
BAKKEN	11-2015	3	549	774	7064	894	242	607
BAKKEN	10-2015	0	0	0	0	0	0	0
BAKKEN	9-2015	0	0	0	0	0	0	0
BAKKEN	8-2015	0	0	0	0	462	0	0
BAKKEN	7-2015	1	28	28	18	51	36	0
BAKKEN	6-2015	17	11123	10643	3313	15667	14948	466
BAKKEN	5-2015	0	0	0	0	0	0	0
BAKKEN	4-2015	0	0	0	0	0	0	0
BAKKEN	3-2015	0	0	0	0	0	0	0
BAKKEN	2-2015	0	0	0	0	0	0	0
BAKKEN	1-2015	0	0	0	0	0	0	0
BAKKEN	12-2014	0	0	0	0	0	0	0
BAKKEN	11-2014	0	0	0	0	0	0	0
BAKKEN	10-2014	0	0	0	0	0	0	0
BAKKEN	9-2014	0	0	0	0	0	0	0
BAKKEN	8-2014	0	0	0	0	0	0	0
BAKKEN	7-2014	0	0	0	0	0	0	0
BAKKEN	6-2014	0	0	0	0	0	0	0
BAKKEN	5-2014	0	0	0	0	0	0	0
BAKKEN	4-2014	20	2349	3447	1114	3035	1524	1198
BAKKEN	3-2014	31	4060	4059	2185	4665	3902	301
BAKKEN	2-2014	28	4752	4304	2356	7406	5711	1278
BAKKEN	1-2014	31	7741	8692	3450	20715	10475	9778
BAKKEN	12-2013	31	7589	6502	2957	12931	8707	3762
BAKKEN	11-2013	30	6143	5943	3319	9269	2811	6011
BAKKEN	10-2013	31	7013	7572	3752	12376	3705	8209
BAKKEN	9-2013	30	7504	7413	4808	11786	1635	9704
BAKKEN	8-2013	30	8079	8081	4802	11807	4884	6476
BAKKEN	7-2013	31	9228	8797	5752	13710	6868	6380
BAKKEN	6-2013	30	8771	9025	5289	11863	2567	8849
BAKKEN	5-2013	31	8065	7632	5370	9938	1393	8083
BAKKEN	4-2013	17	2701	2568	1997	4118	2	3833
BAKKEN	3-2013	23	9296	9113	4476	18056	3452	14231
BAKKEN	2-2013	28	15086	15002	6633	26318	17363	8538
BAKKEN	1-2013	31	19439	20094	8013	30058	15078	14518
BAKKEN	12-2012	31	14300	13548	6533	19118	7861	10795
BAKKEN	11-2012	30	13471	13463	6198	15321	5343	9531
BAKKEN	10-2012	31	16017	16139	7662	18177	406	17309
BAKKEN	9-2012	30	22106	22113	10812	30385	2058	27880
BAKKEN	8-2012	12	15835	14642	22295	17106	0	16927