Thursday, February 2, 2017

Post-Shut-In-Production Jump In The Bakken -- February 2, 2017

Disclaimer: in a long note like this there will be typographical and factual errors. I have no formal training and no experience in the oil "business." I may be seeing things that don't exist. This may be all "alternate facts." There may be errors in the original data. If this is important to you, go to the source. Do not make any inferences or draw any conclusions (somewhat redundant) based on what you read here. This is for my own benefit, as I try to better understand the Bakken. Do not quote me on any of this. 

See also, the note of February 24, 2017.

This is pretty cool. About a month ago a reader alerted me to the Gudmunson wells in the Elidah oil field. Here was my note then:
A reader alerted me to the Gudmunson wells in the Elidah oil field. Note: the original Gudmunson well in this drilling unit was a CLR well; all subsequent Gudmunson wells in this drilling unit are BR wells. 

Note that the two producing Gudmunson wells (#19548, #25147) were taken off-line in October, 2016, which suggests that the operator is getting ready to frack neighboring wells. However, FracFocus does not yet have any frack documents for the four wells on SI/NC status (DUCs).
As noted, that was a few months ago. A reader alerted me to #19458. A big "thank you" to the reader.

Note the post-shut-in-production-jump (PSIPJ) for #19548 (production profile below). It's been said that any well will show an increase in production by being shut-in for a significant period of time (for purposes of this discussion a "significant" period of time would be about 3 to 7 months).

It appears the Bakken is so incredibly incredible that wells don't even have to be taken off that long for pressure to build up to result in "new" production that is significant (there's that word again; for purposes of discussion, I will define "significant" in this case at least a doubling of monthly production after coming back on line).

In the production profile below, this well was off-line for less than one month -- it looks like 26 days. Just prior to being take off-line, the severe Bakken decline had this well at 1,500 bbls of oil/month at best. After coming back on line, first full month:
  • 25 days: 12,310 bbls oil (15,264 for a 31-day month); 12,900 MCF natural gas (2,666 boe for a 31-day month) = almost 18,000 boe for a 31-day month; vs 
  • less than 2,000 boe in July, 2016, shortly before it was taken off-line.
Every so often, just when I'm getting tired of blogging, and thinking there is nothing else about the Bakken to surprise, something else pops up. As I've said before, the Bakken never ceases to amaze me.

At a later date, I will add a "significant" amount of more information (including graphics) but enough for now. 

[For experienced Bakkeneers, note the amount of produced water (19,394 bbls in November, 2016, and 12,282 bbls in December, 2016: that is produced water which the operators placed in the well while it was shut down. Water production will decrease significantly over the next few months.]

Monthly production profile:
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN12-2016251231012164122821290077415159
BAKKEN11-20161688198931193941019462293965
BAKKEN10-201651114743382542540
BAKKEN9-20163013541152498321832180
BAKKEN8-20163112201138695289528950
BAKKEN7-20163113861360535331033100
BAKKEN6-201628102611424582293227815
BAKKEN5-20163111981335517284028400
BAKKEN4-2016301172915484281128110
BAKKEN3-20163112921356525184518450
BAKKEN2-20162912151127463212221220
BAKKEN1-20163112851378457268326830
BAKKEN12-201531137413984973074301163
BAKKEN11-201529127913885033006293175
BAKKEN10-20153113531111556344734470
BAKKEN9-2015301269139548532282798430
BAKKEN8-2015311337112452328852245640
BAKKEN7-20153114301539500324620461200
BAKKEN6-20153013501346512354535450
BAKKEN5-20153115011538525375037500
BAKKEN4-20153014471304493351035100
BAKKEN3-20153114851727488379337930
BAKKEN2-20152814391561378362136210
BAKKEN1-20153116421558547419131031088
BAKKEN12-201431173017496174010399515
BAKKEN11-20143020181969732411341130
BAKKEN10-201424117414795832885287015
BAKKEN9-20143020081501750465246520
BAKKEN8-20142312451498662329132910
BAKKEN7-20143118411873668441144110
BAKKEN6-2014291713134866338903790100
BAKKEN5-20143017502291575408940890
BAKKEN4-20142918171668582343634360
BAKKEN3-201424145014645623243316875
BAKKEN2-2014281679137862243924072320
BAKKEN1-2014311865186977855605460100
BAKKEN12-2013312005210875361875817370
BAKKEN11-20133023572392862659665960
BAKKEN10-2013312139187472046684233435
BAKKEN9-20133022122324722447844780
BAKKEN8-20133121722215748435443540
BAKKEN7-20133123502236787442344230
BAKKEN6-201330214223131243358435840
BAKKEN5-2013312274227271539753815160
BAKKEN4-20132416791536790440844080
BAKKEN3-20133124752555827670567050
BAKKEN2-2013282246216481765746474100
BAKKEN1-20133125372714920846084600
BAKKEN12-201231281624961158100939753340
BAKKEN11-20123031033361765822282220
BAKKEN10-20123130623031624671567150
BAKKEN9-20123031813196680672867280
BAKKEN8-20123133503371711657165710
BAKKEN7-20123137383678937101809730450
BAKKEN6-2012174293406993871536853300
BAKKEN5-2012151845193047560365936100
BAKKEN4-2012294819518214861173899831755
BAKKEN3-20121833273052921538953890
BAKKEN2-201229485548921039900170811920
BAKKEN1-20123162466217153814764131691595
BAKKEN12-20113179067894175815466126662800
BAKKEN11-201130114641152225822067820178500
BAKKEN10-20112214450141734588351803518
BAKKEN9-201156676410000

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