Wednesday, November 7, 2012

Random Update of Section 34-153-95, Charlson Field, Llano, Brazos, and Frio

See "This is NOT an NDIC Typo," posted back in July, 2012.

That post had to do with the Llano well in Charlson oil field. In addition, there are two wells in the same section, just to the west, but on different pads, of current interest. Note: these are all short laterals with 6 -10 stages; middle Bakken; since these three wells there has been no additional activity in this section, except for one research well (see later).
  • 20635, 2,477, BR, Frio 24-34H, Charlson, t6/12; cum 318K 11/16; short lateral; 10 stages; about 150K lbs/stage;
  • 20636, 5,130, BR, Brazos 24-34H, Charlson, t6/12; cum 158K 11/16; short lateral; 6 stages, 900K lbs;
  • 20637, 1,980, BR, Llano 34-34H, Charlson, t6/12; cum 235K 11/16; short lateral; 8 stages; 
Early production (production profiles not updated)


PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare


PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare


PoolDateDaysBBLS OilRunsBBLS WaterMCF ProdMCF SoldVent/Flare

As was pointed out elsewhere, however, there is more to the story. These three wells are all in section 34-153-95.

Back in 1978 and 1979, two deep wells were drilled, and were productive in the Silurian. In 1986, CLR re-entered one of the two wells and drilled to the Bakken with minimal success.  In 1981 and in later years, CLR re-entered the second well and drilled into the Red River, Madison, and the Bakken with varying success.

  • 6539, 1,632/117, Silurian/Bakken, t7/79 and t12/86; CLR, Sugar Butte 1, Charlson, cum 171K from the Silurian, now PNA; cum 23K from the Bakken, PNA 10/12
  • 6547, 125/144/113/97; Silurian/Red River/Bakken/Madison, t10/78; 3/81; 6/87, and t12/86; CLR, Sugar Butte 2, Charlson, cum 5K from the Bakken, now PNA; cum 115K from the Silurian, now PNA; 105K from the Red River, now PNA; and 119K from the Madison, still active, but just enough to keep the lease held by production, it appears; update: Madison went IA 5/16;
Another well in that section, a Madison well (cum 85K) is now a salt water disposal well, also operated by CLR.

And, now one more well in this section:
  • 21668, dry, BR, Uberwachen 24-34, Birdbear. According to the narrative at the file report, this well was "primarily" a research hole to gather coring samples from the Lodgepole down through the Three Forks. The observations were not unexpected.

One other bit of trivia to be noted, which I have mentioned before: CLR and BR close working relationship.

The Llano, Frio, and Brazos are names of rivers in Texas. They all are found in the Waco-Austin-San Antonio area, which coincidentally is in the Eagle Ford neighborhood -- simply coincidental.

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