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Wednesday, July 22, 2015

Re-Worked Or Re-Fracked? OXY USA Raphael Stroh Well -- July 22, 2015

Updates

October 8, 2016, production profile updated:

Monthly Production Data

PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN8-2016161211870729848525127
BAKKEN7-201631257825841539146910780
BAKKEN6-20163025972870171017211071207
BAKKEN5-2016312821281617271582121516
BAKKEN4-20163028382661173816971014226
BAKKEN3-20163131813125187720821330253
BAKKEN2-20162932263205179919551243128
BAKKEN1-20163136063676222421791652144
BAKKEN12-20153138624013213620251476154
BAKKEN11-20153040113929229219935901130
BAKKEN10-20153144324501268222021739177
BAKKEN9-20153044794372317510838080
BAKKEN8-201531473448823169215418640
BAKKEN7-201531501148663845191916260
BAKKEN6-201530487648654234183015442
BAKKEN5-20153147894670493411088180
BAKKEN4-201530413145861113058221394
BAKKEN3-20153134953671767147830175


July 23, 2015: see first comment; the answer may be -- fracking in neighboring well(s); halo effect. The original post was fairly short; I have added a lot to it at the bottom. It remains a mystery but we know part of the answer. 

Original Post

I don't know; maybe a reader does, but probably not re-fracked:
  • 21333, 108, Lime Rock Resources/OXY USA, Raphael Stroh 2-13-24H-143-97, Fayette oil field, 20 stages; 2 million lbs, 12K in April; down to 2K in June;  t2/12; back up to 5K in May,2015; cum 229K 8/16; only 16 days in 8/16;
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN5-20153147894670493411088180
BAKKEN4-201530413145861113058221394
BAKKEN3-20153134953671767147830175
BAKKEN2-20151111114613297109112
BAKKEN1-20150000000
BAKKEN12-20140000100
BAKKEN11-201420177020595969778290
BAKKEN10-201430265527131204124212340

A couple notes:
  • for whatever reason OXY USA took this well off-line, they did so during the slump in oil prices, doing something to increase production
  • I don't think it was a re-frack but the amount of water coming back up in April, 2015, suggests it might have been re-fracked 
  • the fact that there was some new flaring suggests it might have been re-fracked
The most recent sundry form was dated December, 2014, well before whatever occurred at the end of November, 2014.

Update: after receiving the first update, I went back and checked some neighboring wells. On the same pad, but running in the opposite direction, this well has a similar production profile (but not an increase in monthly production as noted in the Raphael Stroh well:

21334, 755, OXY USA, Kenneth Stroh 2-12-1H-143-97, Cabernet, t5/12; cum 197K 5/15:

PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN5-201531319228611622172401453
BAKKEN4-201530320631841977173151463
BAKKEN3-201531280928972774150001234
BAKKEN2-20151992891022194160266
BAKKEN1-20150000200
BAKKEN12-20140000300
BAKKEN11-20142025872491529148013320
BAKKEN10-201430368141031213185618490
BAKKEN9-201430366734001222169716970
BAKKEN8-201431388941131266181318130

The third well on this pad is currently SI/NC:
  • 29600, SI/NC, OXY USA, Kenneth Stroh 3-12-1H-143-97, Cabernet, Three Forks, 1280-acre; it looks like the horizontal will be a bit shorter than a typical "long lateral";
This well will be interesting to follow up on when it is completed.

My hunch: putting everything together: this well, #29600, was recently stimulated and it affected the neighboring Raphael Stroh well, but did not affect the other well on the pad which ran the opposite direction.

Now to look at the next well over, to the east:
  • 28757, 633, OXY USA, Kenneth Stroh 4-12-1H-143-97, Cabernet, 40 stages, 3.5 million lbs; stimulated 12/19/2014;  t2/15; cum 43K 5/15;
The production profile:
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN5-201531124671256610815662147651340
BAKKEN4-201516667764706406346012721988
BAKKEN3-201520101751065610419546324032650
BAKKEN2-20152413408126968597628520433798


This is very interesting. This well was stimulated the very same month (December 19, 2015) that the Raphael Stroh and the Kenneth Stroh #2 were take off-line. It's hard to believe that a well this far away from the Raphael Stroh would have any effect, but if the  Kenneth Stroh #3 (#29600) was not stimulated at this time, then .... We will have to wait to see when Kenneth Stroh #3 was stimulated.

Note: this note was done quickly; it was not proofread. I may have misread something; thre ma be factual and typographical errors. This post is still in progress. If this information is imporant to you go to the source.

Where we stand now: it appears production jumped a bit on the Raphael Stroh due to some neighoring fracking but we don't know which well. We might (should?) have the answer when the frack data/stimulation date of #29600, Kenneth Stroh #3 becomes available. 

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