Wednesday, July 13, 2016

Possible Halo Effect, Hess BL-Davidson Wells, Beaver Lodge -- July 13, 2016

I first noted the possibility of a halo effect on wells in this area in a post dated March 28, 2016.

At that time, I was interested in seeing what would happen to wells #16804 and #16803 when Hess fracked the BL-Davidson wells. The BL-Davidson wells have been fracked. It looks like there was not much effect on #16803, and maybe minimal effect on #16804. Note the different targets in the various wells below: middle Bakken vs Devonian. According to the file report, the "Devonian pool" wells were targeting the Three Forks formation.

It's hard to tell, but it appears the middle Bakken well, #31354, was 0.18 miles (950 feet) from #18604, and 0.39 miles (2,059 feet) from #18603. To repeat, it looks like there was not much, if any effect between two middle Bakken wells 2,059 feet from each other; and some (very little) effect on a middle Bakken well 950 feet away.

I'm not going to re-do the graphic at this time (maybe later), so go back to the linked post to see the original graphic.

These are the BL-Davidson wells of note:
  • 31355, SI/NC, BL-Davidson-155-96-0211H-5, Beaver Lodge, Devonian pool, no test data; cum oil 50K over 3.5 months; API 33-105-04068;
  • 31354, 593, BL-Davidson-155-96-0211H-6, Beaver Lodge, Bakken pool, t3/16; cum 23K 5/16;
  • 31353, 5797, BL-Davidson-155-96-0211H-7, Beaver Lodge, Devonian pool, t3/16; cum 48K 5/16;
Production profile, #31355:
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
DEVONIAN5-20163114337144928270343383431028
DEVONIAN4-201630225652260511668343633433033
DEVONIAN3-201613134051294675901826017975285

Production profile, #31353:
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
DEVONIAN5-2016311580015835978833765299723793
DEVONIAN4-201630175441772412213239642388183
DEVONIAN3-20161914784142781178623589220861503

Production profile, #31354:
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN5-201631663367222172259402585585
BAKKEN4-201629113621131751822837728082295
BAKKEN3-2016748604694156577097472237

Now, the recent production profiles of #16803 and #16804.

First, #16803:
  • 16803, 400, BL-Davidson-155-96-1102H-2, Beaver Lodge, t12/07; cum 210K 5/16; production profile for last twelve months:
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN5-201630761776193171217120
BAKKEN4-201630630626202132413240
BAKKEN3-201628575636112152815280
BAKKEN2-20162913551369241294529450
BAKKEN1-20163118261754236358235820
BAKKEN12-2015181098105345184918490
BAKKEN11-201520215440
BAKKEN10-20153196496374269126910
BAKKEN9-2015301323132875307430740
BAKKEN8-20152210061036195261526150
BAKKEN7-20151885386686228522850
BAKKEN6-201517777805128436843680

 Now, #16804:
  • 16804, 439, BL-Davidson-155-96-1102H-3, Beaver Lodge, t12/08; cum 229K 5/16; production profile for last twelve months:
PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare
BAKKEN5-201629209920221066371537150
BAKKEN4-201641121041412572570
BAKKEN3-20160000000
BAKKEN2-201600940000
BAKKEN1-2016221470138647212521250
BAKKEN12-20154233264313103100
BAKKEN11-20153014941460175208620860
BAKKEN10-20156307306824354350
BAKKEN9-2015935736805925920
BAKKEN8-20152668976521155715570
BAKKEN7-2015291431143860298829880
BAKKEN6-20152411431068143211221120

Comment: in a long note like this there will be typographical and factual errors. I may be seeing things that do not exist and/or interpreting things incorrectly. If this information is important to you, go to the source. This is a very, very nice case study from my point of view. I am always looking for evidence of halo effect of neighboring wells that are fracked. I have opined from the very, very beginning of the blog, that I thought fracking was effective out to about 500 feet (radius). That's an important data point (regardless of the actual number) because it effects infill / density spacing. With "no" effect on a well 2,000 feet away and minimal effect on a well 900 feet away, it suggests that my original assertion that fracking is effective about 500 feet out appears good enough for me. Whether others agree or not, time will tell. But I'm sticking to a radius of 500 feet within the same formation. A separate issue has to do with communication between the middle Bakken and the Three Forks, but I'm not going to comment on that issue in this post.  

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