Wednesday, October 30, 2019

Idle Chatter, Petro-Hunt And The Charlson -- October 29, 2019

Disclaimer: I am inappropriately exuberant about the Bakken. In a long note like this, there will be factual and typographical errors. 

Of all the operators in the Bakken, Petro-Hunt seems to be off the radar scope.

Hold that thought.

There are a lot of great fields in the Bakken. It's impossible for me to come up with a top ten list. Some fields are hot for awhile, then activity slows down and another field becomes hot. Here are some of the fields that always get me excited:
  • Elm Tree
  • Banks
  • Grail
  • Stockyard Creek
  • Reunion Bay
  • Sanish
  • Parshall 
One field that doesn't get a lot of attention but is probably the most interesting. The Charlson. I've blogged about it several times. One of my better, longer posts on Petro-Hunt and the Charlson is at this link.

I was reminded of that when updating a 2560-acre drilling unit in the Charlson.

One of the wells:
  • 16452, 265, Petro-Hunt, USA 14D-4-1H, Charlson, single section, t10/07; cum 374K 8/19;
For newbies:
  • this well was drilled in the very first year of the Bakken boom, 2007
  • this well is now twelve years old
  • for such an old well, its cumulative production is mediocre at best -- but that's by today's standards; in 2007, EURs in the Bakken were pegged at 375,000 bbls; and guess what? that's exactly where this well is
  • but then this:
    • monthly production, after the dreaded Bakken decline, plateaued at around 3,000 bbls/month (which, by the way, is a nice well) 
    • last summer, the 11-year-old well was taken off line for three months to give it a breather (LOL)
    • when it came back on line, production jumped 17,000 bbls/month -- a 5-fold increase in production
  • but there's more: this was the production when this well was first drilled/completed:
BAKKEN2-20082926262633155350135010
BAKKEN1-20083131913198148417141710
BAKKEN12-20073040154051277563656360
BAKKEN11-20072750795120686653565350
BAKKEN10-200727752772981064926192610
BAKKEN9-200725645120000
BAKKEN8-20070000000
BAKKEN7-20070000000
BAKKEN6-20070000000
BAKKEN5-20070000000

The best this well did immediately after being completed, less than 8,000 bbls/month.

Then eleven years later, a jump in production from 3,000 bbls/month to 17,000 bbls/month.

Recent production:
BAKKEN1-201931843484153037788507885
BAKKEN12-20183110701106433439878208782
BAKKEN11-20183011206111863772815608156
BAKKEN10-20183111968120434857894908949
BAKKEN9-2018301435014365537310551010551
BAKKEN8-2018311743917616774412368012361
BAKKEN7-201812755272894030740807408
BAKKEN6-20180000000
BAKKEN5-20180000000
BAKKEN4-201819129413414751129911037
BAKKEN3-2018282503266689023401579761

From a sundry form dated November 26, 2007:
A 12 1/4" surface hole was drilled and 9 5/8" casing cemented without any problems.

An 8 3/4" hole was then drilled to 10,266' MD and 7" casing was ran and cemented.

A 6" hole was then drilled to 15,456' MD and a 4 1/2" liner set and cemented from 10,003' to 10,673' with the remainder of it left open hole. A coiled tubing motor was stuck and lost in the lateral at 10,640'.

When it -- the coiled tubing motor -- couldn't be recovered, a bridge plug was set at 9,953', a window cut in the casing, and a curve built to intersect the old lateral.

Even though the 2nd lateral was drilled in the same direction, it failed to intersect the first lateral. The second lateral was drilled to 14,570' MD and a 4 1/2" liner was ran and cemented from 9,610' to 10,675'.

The well was completed [sic -- drilled to depth] but would not flow so it was sand fractured. It was placed on rod pumping unit 11-21-2007.
Frack data at time of original completion, back in 2007:
  • open hole or perforated interval: 10,675' - 14,570'
  • 72,360 lbs mesh sand
  • 348,500 lbs mesh sand with 5,513 bbls of gelled water
IP: 265

(Some of the data below is a repeat from above.)

First twelve months production, May, 2007 - May 2008:
BAKKEN5-2008311397140370161816180
BAKKEN4-20082715971616333212321230
BAKKEN3-20082823712382211309330930
BAKKEN2-20082926262633155350135010
BAKKEN1-20083131913198148417141710
BAKKEN12-20073040154051277563656360
BAKKEN11-20072750795120686653565350
BAKKEN10-200727752772981064926192610
BAKKEN9-200725645120000
BAKKEN8-20070000000
BAKKEN7-20070000000
BAKKEN6-20070000000
BAKKEN5-20070000000

It was refracked from January 24, 2015, to January 26, 2015, according to FracFocus, with a very, very small completion: 1.3 million gallons of water; 88.9% water by mass; sand, 8.85% by mass. 

Plateaued to 2,000 bbls/month through most of its life; representative profile, July, 2016, to July, 2017:
BAKKEN7-20172525042194111316881557127
BAKKEN6-20171717511674190731692725347
BAKKEN5-2017144875444574263700
BAKKEN4-2017291712170813001936175610
BAKKEN3-20173125962620862300727910
BAKKEN2-20172826392639935295127560
BAKKEN1-2017202176217069221428321174
BAKKEN12-20163023502335623327403068
BAKKEN11-20163022602250687311202903
BAKKEN10-2016312498253289020161692108
BAKKEN9-2016121256116956710719870
BAKKEN8-20162420642097607218420170
BAKKEN7-20163128392879865289726810

It was taken off line for four months, summer of 2018, and this was the production when it came back on line; it was not re-fracked:
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN8-201929252524522105625206252
BAKKEN7-20192641844264225112471012471
BAKKEN6-201930523553222648604106041
BAKKEN5-20193165616521201110508010508
BAKKEN4-201930655065132052599705955
BAKKEN3-201930679968022617677706568
BAKKEN2-201928741974932492648706341
BAKKEN1-201931843484153037788507885
BAKKEN12-20183110701106433439878208782
BAKKEN11-20183011206111863772815608156
BAKKEN10-20183111968120434857894908949
BAKKEN9-2018301435014365537310551010551
BAKKEN8-2018311743917616774412368012361
BAKKEN7-201812755272894030740807408

So, did you catch that. Petro-Hunt wasn't even going to frack this well. They drilled to depth. But the well would not flow. So, they pumped a bit of sand and a bit of water down the wellbore and they had a well.

There are some fields that seem particularly well-suited for re-fracks. The Charlson is one of them. Reunion Bay seems to be another.

By the way, look at this Petro-Hunt Charlson well, only three years old and trending toward one million bbls cumulative, and a very moderate frack:
  • 28016, 912, Petro-Hunt, USA 153-95-22D-15-1HS, middle Bakken, 37 stages; 4.7 million lbs, Charlson, t11/15; cum 721K 8/19; huge well; still at 8,000 bbls/month, 8/19;

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