Monday, April 11, 2011

What’s the Fracking Problem? Extraction Industry’s Neglect of the Locals Revealed in Research

The turmoil in oil-producing nations is triggering turmoil at home, as rising oil prices force Americans to pay more at the pump. Meanwhile, there’s a growing industry that’s promising jobs and access to cheaper energy resources on American soil, but it’s not without its controversy.

Hydraulic fracturing is a process that results in the creation of fractures in rocks. The fracturing is done from a wellbore drilled into reservoir rock formations to increase the rate and ultimate recovery of oil and natural gas.

Hydraulic fractures may be natural or man-made and are extended by internal fluid pressure which opens the fracture and causes it to extend through the rock. Natural hydraulic fractures include volcanic dikes, sills and fracturing by ice as in frost weathering. Man-made fluid-driven fractures are formed at depth in a borehole and extend into targeted formations. The fracture width is typically maintained after the injection by introducing a proppant into the injected fluid. Proppant is a material, such as grains of sand, ceramic, or other particulates, that prevent the fractures from closing when the injection is stopped.

Considerable controversy surrounds the current implementation of hydraulic fracturing technology in the United States. Environmental safety and health concerns have emerged and are being debated at the state and national levels

Deborah Kittner, a University of Cincinnati doctoral student in geography, presents, “What’s the Fracking Problem? Extraction Industry’s Neglect of the Locals in the Pennsylvania Marcellus Region,” at the annual meeting of the Association of American Geographers. Kittner will be presenting April 14 at the meeting in Seattle. She is part of a large contingent of UC researchers to be presenting at the conference.

Deborah Kittner
Deborah Kittner
Photo: University of Cincinnati

Hydraulic fracturing, or fracking, involves using millions of gallons of water, sand and a chemical cocktail to break up organic-rich shale to release natural gas resources. Kittner’s research examined the industry in Pennsylvania, known as the “sweet spot” for this resource, because of the abundance of natural gas. Pittsburgh has now outlawed fracking in its city limits as has Buffalo, N.Y., amid concerns that chemical leaks could contaminate groundwater, wells and other water resources.

The EPA is now doing additional study on the relationship of hydraulic fracturing and drinking water and groundwater after congress stated its concern about the potential adverse impact that the process may have on water quality and public health. Kittner attended an EPA hearing and also interviewed people in the hydraulic fracturing industry. She says billions of dollars from domestic as well as international sources have been invested in the industry.

The chemical cocktail used in the process is actually relatively small. The mixture is about 95-percent water, nearly five percent sand, and the rest chemical, yet, Kittner says some of those chemicals are known toxins and carcinogens, hence, the “not in my backyard” backlash from communities that can be prospects for drilling. The flow-back water from drilling is naturally a very salty brine, prone to bacterial growth, and potentially contaminated with heavy metals, Kittner says. In addition, there’s the question of how to properly dispose of millions of gallons of contaminated water, as well as concerns about trucking it on winding, rural back roads.

Based on her research, Kittner says that many in the industry are “working to be environmentally responsible, and become frustrated at companies that do otherwise.”

“I think that the study that the EPA is doing is going to be really helpful, and the industry – however reluctant to new regulations – is working with the EPA on this,” Kittner says.

Kittner has lived in Ft. Thomas, Ky., for two decades, but is originally from Warren, Pa. Her research took her to an EPA public meeting in Canonsburg, Pa., where she audio-taped 114 people presenting public statements of what they wanted the EPA study to examine. That study is expected to be completed in 2012 and will include an examination of what to do with millions of gallons of contaminated flow-back water.


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