Texas-based independent Breitling Oil & Gas has spudded the first well of its potential six-well exploratory programme targeting the Hunton Chimney Hill Limestone in Pottawatomie County, Oklahoma.
The Breitling-Warrior-1H, spudded on Monday,
will have a total vertical depth of 4000 feet plus a 2300-foot lateral, the
company said in a statement. It expects the well to reach total depth in 17
days, with completion and testing set to begin at the end of April.
The company has listed the Woodford shale
at 3800 feet and the Earlsboro Sand at 3600 feet as secondary objectives in the
well. It will drill the initial test well into the Hunton Chimney Hill
formation, the primary objective.
The Hunton Chimney Hill Limestone has
produced since the 1920s, though output from vertical wells there has been “marginal...
due to its physical characteristics”, Breitling said.
"New horizontal drilling techniques
have allowed the Chimney Hill to become a profitable reservoir target,” chief executive
Chris Faulkner said.
Chimney Hill is comprised of basal oolites
grading upward into fractured chert and dolomite, according to Breitling.