Random Notes On Two Wells In The Williston Basin; Happy Birthday To Kate Hopkins #1 -- 60 Years Old; 53 Years Since It Was Initially Fracked -- February 5, 2017

A reader alerted me to this well, for various reasons:

• 25093, 745, EOG, Wayzetta 150-1509H, Parshall, 52 stages, 14.3 million lbs, t8/13; cum 662K 12/16; just an incredible well, still producing about 6,000 bbls of oil per month, along with 12,000 MCF natural gas / month (2,000 boe). Who wudda guessed that a non-descript middle Bakken well would have produced over 600,000 bbls in just 3.5 years? And as as early as 2013, EOG was using 14 million lbs of sand, and 50+ stages. Truly amazing. 

That's a "baby well," only three or four years old. 

Now an oldie, a "senior well," celebrating its 60th year; fracked 53 years ago:

• 1509, 248, CLR, Kate Hopkins 1, Antelope field, target, the Sanish oil pool; t12/57; cum 594K 12/16; this well was drilled in 1957. Then in 1964, a sundry form reported the operator planned to "fracture this well using 10,000 gallons of gelled water and 3,000 pounds of glass beads." (The original intent was to use 3,000 pounds of glass beads; but the work report said that 10,000 pounds of glass beads were used.)

So, there you have it, they've been "fracking the Bakken" since at least 1964.

I've been following this well almost from the beginning of the blog. A few years ago I noted (and blogged) that production was dropping  more and more every month, down to less than 20 bbls/month.

Now all of a sudden, a noticeable increase; no sundry form in the file report to suggest why.

Recent production profile:
Monthly Production Data:

Pool	Date	Days	BBLS Oil	Runs	BBLS Water	MCF Prod	MCF Sold	Vent/Flare
SANISH	12-2016	22	200	0	0	310	0	228
SANISH	11-2016	30	310	386	0	457	0	328
SANISH	10-2016	31	289	209	0	399	0	285
SANISH	9-2016	3	0	0	0	9	0	9
SANISH	8-2016	14	13	0	0	119	0	54
SANISH	7-2016	10	17	0	0	77	0	12
SANISH	6-2016	30	15	0	0	129	1	99
SANISH	5-2016	31	2	0	0	231	0	93
SANISH	4-2016	3	8	0	0	35	0	11
SANISH	3-2016	5	17	0	0	41	0	9
SANISH	2-2016	7	31	0	0	56	0	0
SANISH	1-2016	5	19	219	0	32	0	0
SANISH	12-2015	6	22	0	0	56	0	8
SANISH	11-2015	3	8	0	0	27	0	11

This well was shut in from December, 1997, to March, 2000 (over two years). 

What did the production profile look like back in June, 1964, when they fracked the well with 10,000 lbs of water and a similar amount of glass beads?

Fracked on/about June 22, 1964:

SANISH	11-1964	23	2899	0	0	2635	0	0
SANISH	10-1964	29	3677	0	0	4875	0	0
SANISH	9-1964	30	4001	0	0	5296	0	0
SANISH	8-1964	29	4353	0	0	5296	0	0
SANISH	7-1964	24	3994	0	0	4699	0	0
SANISH	6-1964	30	2767	0	0	3998	0	0
SANISH	5-1964	23	1915	0	0	2850	0	0
SANISH	4-1964	26	2038	0	0	2830	0	0
SANISH	3-1964	31	2350	0	0	2526	0	0
SANISH	2-1964	29	2175	0	0	2488	0	0
SANISH	1-1964	31	2514	0	0	3236	0	0
SANISH	12-1963	30	2499	0	0	3154	0	0
SANISH	11-1963	24	2174	0	0	2706	0	0
SANISH	10-1963	29	2463	0	0	3372	0	0
SANISH	9-1963	30	2471	0	0	3446	0	0
SANISH	8-1963	31	2636	0	0	4024	0	0
SANISH	7-1963	29	2733	0	0	2848	0	0
SANISH	6-1963	14	1529	0	0	1950	0	0
SANISH	5-1963	27	2626	0	0	3164	0	0
SANISH	4-1963	30	2758	0	0	3236	0	0
SANISH	3-1963	25	2513	0	0	2982	0	0

It's hard to say that fracking made that much of a difference. Perhaps flattened out the decline rate.

This is what the first few months of this well looked liked:

SANISH	8-1958	26	4672	0	0	0	0	0
SANISH	7-1958	26	4681	0	0	0	0	0
SANISH	6-1958	26	4555	0	0	0	0	0
SANISH	5-1958	17	2986	0	0	0	0	0
SANISH	4-1958	25	3830	0	0	0	0	0
SANISH	3-1958	20	3417	0	0	0	0	0
SANISH	2-1958	23	4294	0	0	0	0	0
SANISH	1-1958	24	4755	0	0	0	0	0
SANISH	12-1957	16	2538	0	0	0	0	0