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Atlas Energy LP (ATLS), Air Products & Chemicals, Inc. (APD): Is Fracking on the Verge of Drying Up?

There’s a fracking research study likely to be unleashed in the next several months on University of Tennessee land about an hour from the main campus in Knoxville.

Several companies, including Pittsburgh-based Atlas Energy LP (NYSE:ATLS), appear likely to submit proposals to participate in the effort by the August deadline. Atlas Energy LP (NYSE:ATLS) has already completed 450 natural gas wells in a four-county area of Tennessee.

Atlas Energy LP (NYSE:ATLS)

Give it some gas
But while the drilling that ultimately occurs in Tennessee will involve fracking, it won’t include hydraulic fracturing. That’s because, rather than the hundreds of thousands or millions of gallons of water per well normally associated with fracking, the approach in the Chattanooga shale will involve the pumping of nitrogen gas into the rock, a substitution that works especially well in shallow formations.

According to Air Products & Chemicals, Inc. (NYSE:APD), while the use of nitrogen is about 15% more expensive than hydraulic fracturing, that difference is largely offset by an 11% increase in the estimated ultimate recovery of natural gas. Further, amid spreading drought conditions across much of the U.S., along with increasing requirements that drillers treat, recycle, and reuse flowback water, the use of nitrogen in fracking is surging.

Nitrogen three ways
Air Products & Chemicals, Inc. (NYSE:APD) notes that the proportion of the nitrogen used depends on a several factors, including the well’s depth:

  • Nitrogen gas fracking is used in shallower formations — typically less than 5,000 feet deep — that are water sensitive. Since nitrogen is a poor proppant carrier, it’s ideal for use in brittle shale with natural fractures that tend to stay self-propped after they’ve been hit by pressure pumping.
  • Nitrogen foam uses 53% to 95% nitrogen, with the remainder consisting of water. Given the ability to create this combination, fluid viscosity can be adjusted as need, and the volume of additives used is reduced by the percentage of nitrogen included. The result for operators is both environmental and financial benefits.
  • Nitrogen-energized fracking involves the inclusion of the gas at rates below 53% of the total. Given its increased liquids content, this combination can be used in formations with depths up to 8,000 feet.

The benefits of nitrogenous fracturing in times of increasing water scarcity are hardly inconsequential. For instance, whereas in recent years farmers in some parts of Colorado forked over from $9 to $100 for an acre foot of water to cities with excess supplies, energy companies are now paying $1,200 to $2,900 per acre foot.

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