Sunday, January 22, 2012

The Crews Really Are Incredible -- Rambling Story of an Old "Bakken" Well

12481, 332, Summit Resources, Rauch Shapiro Fee 22-9R, Roosevelt field, Billings County, s7/88, t9/88; cum 302K 11/11

According to the scout ticket and the GIS map server: this is a vertical well drilled back in 1988; not hydraulically fracked.

It is in the southwest part of the state, so although the tick says the pool is the Bakken, one would think that it might have targeted the Three Forks.

And there it is: an early application to the NDIC said the driller was going to target the Three Forks formation.

So, what were the geologic markers?
  • Tyler: 7,986 feet
  • Base Tyler: 8,028 feet (thus the Tyler about 42 feet thick at this point)
  • Charles Salt: 8,596
  • Base Charles Salt: 9,103
  • Mission Canyon: 9,282
  • Bakken:10,521
  • 3 Forks: 10,524
  • Total depth for this well: 10,700
So the Bakken formation (not the Bakken Pool) is all of 3 feet thick in this area.

From the data, hard to say how thick the Three Forks is but I doubt they drilled unnecessarily deep.

Elsewhere these were the geologic markers accompanying another test:
  • Tyler: 7,980
  • Charles: 8,590
  • Madison: 9,105
  • Lodepole: 9,750
  • Bakken, 10,480
Even though it is a vertical well, there was fracking (which to me looks about 140,000 lbs.


It took about 37 days to drill.

This is why I think the crews are incredible: drilling down almost two miles, and delineating a formation (in this case, the Bakken formation) that is only a few feet thick. And this is back in 1988.

This is a stripper well and has been consistently producing about 500 - 600 bbls of oil per month since 1995.

This is just one of many, many stories that could be told.

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