EOG goes Fracking in the Bakken: Implications for better yields in the Marcellus/Utica plays

http://seekingalpha.com/article/1515302-bakken-update-well-in-weste...

"What separates EOG from other operators is how it looks at source rock stimulation. Operators have historically thought the deeper fractures would produce the most resource as it intermingled with the existing fractures. EOG is focusing on creating fractures close to the horizontal leg. Not only would the pressure create more and better fractures, it could possibly increase the number of locations per square mile. This would reduce the chances of communication between wells. With fractures closer to the well bore, it is easier to get the water and proppant pushed deeper into the source rock. In essence, we will see more pressure from the pump trucks exerted over a shorter distance. This would increase the fractures per square foot. In response, more proppant and water would be needed per foot. Tighter stages would be beneficial as this would produce additional fracturing."

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Permalink Reply by Booger on June 24, 2013 at 9:11am

good article......one thing i don't quite understand about this technology.....they keep saying they are using shorter stages and more water/sand, thus creating more fractures - but the fractures are closer to the well bore. how could they control the distance from the well bore?....it seems like more water, more sand, more fractures would equal - farther distances from the bore, but they claim just the opposite.

a couple things they dont mention is the pressures used, and the amount/size of the perforations....maybe that is the difference....maybe less pressure and/or more perforations is how they control the distance from the bore.

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