Why, exactly, is high-volume slickwater hydraulic fracturing such a devastating industry? How best to describe its singularity—its vastness, its difference from other industries and its threat to the planet?
When I interviewed Dr. Anthony Ingraffea—Dwight C. Baum Professor of Engineering, Weiss Presidential Teaching Fellow at Cornell University and president of Physicians, Scientists and Engineers for Healthy Energy, Inc., I realized that his comments were perhaps the clearest, most compactly instructive of any I’d heard on fracking. So I expanded the original interview to include Ingraffea’s reflections on his odyssey from an industry insider to an implacable fracking opponent, with his descriptions of the fascinating nature of 400 million-year-old shale formations and what, precisely, corporations do when they disrupt these creations of nature.
Ingraffea is perhaps best-known for his co-authorship of a Cornell University 2011 study that established the greenhouse gas footprint of fracking as being greater than that of any other fossil fuel including coal. The lead-investigator for Methane and the Greenhouse-Gas Footprint of Natural Gas from Shale Formations, often called “The Cornell Study,” was Robert Howarth, David R. Atkinson Professor of Ecology and Microbiology. A third co-author was research aide Renee Santoro.
Ingraffea has been a principal investigator on research and development projects ranging from the National Science Foundation, National Aeronautics and Space Administration (NASA) through Schlumberger, Gas Research Institute, Sandia National Laboratories, Association of Iron and Steel Engineers, General Dynamics, Boeing and Northrop Grumman Aerospace. Having been an industry insider for so long, he’s a formidable opponent of anyone who dares to go against him in a debate about high-volume hydraulic fracturing.
His passion for social justice has infused his teaching. He has promoted the entry of women and minorities into engineering. Among his teaching awards are the Society of Women Engineers’ Professor of the Year Award in 1997 and the 2001 Daniel Luzar ’29 Excellence in Teaching Award from the College of Engineering. He organized and directed the Synthesis National Engineering Education Coalition. Its mission: improving undergraduate engineering education and attracting larger numbers of women and minorities to the field.
Those who have watched Ingraffea in action know him for his simplicity and clarity, his refusal to indict his opponents on any but rigorous scientific grounds, the logic with which he demolishes them and his sense of humor. Several years ago, towards the end of a long talk in Pennsylvania (see video below), Ingraffea mentioned that on Halliburton Corporation’s website the corporation lists hydrochloric acid (HCl) among its fracking chemicals. Halliburton also notes that HCl is commonly used in preparing black olives.
Ingraffea deadpans: “It’s really nice to know that,” he says. He waits a few seconds for his audience’s response (laughter). Under a crown of white hair he has expressive black eyebrows and a face straight from Sicily. That face now appeals to his audience with puckish bewilderment.
“So am I now supposed to be less fearful of black olives?” Pause, laughter. “Or more fearful of the hydrochloric acid used in the frack?”
He smiles, shakes his head and makes a what-can-you-do gesture with his hands. “I don’t know what the point is. Obviously, using 50 thousand gallons of hydrochloric acid, and it has to be brought by truck, and stored on the site, and it’s injected [without being] diluted … ’cause it has to go in there and do a job, which is dilute all the crap in the perforations [of the shale]. So to tell me it’s also in black olives doesn’t inform me. It irritates me.” Pause, more laughter. “And I’m gonna continue to eat black olives, the passion fruit of the Sicilians.”
Q. Could you talk about your earlier career and how you came to your current views?
A. I started out to be an astronaut, with a BS in Aerospace Engineering from Notre Dame, and a few years at Grumman Aerospace Corporation. Things happened, the Vietnam war, the first energy crisis, deciding on an academic career, and I started to study rock mechanics in1974 at U of Colorado/Boulder. My doctoral thesis was on crack propagation in rock. Not many of us entered that field, but with that first energy crisis, it was analogous to the “going to the moon” challenge: how to get more energy [fossil fuels] out of rock. I started research on that topic for the NSF [National Science Foundation] and DOE [Department of Energy] in 1978, and began receiving research funding and consulting support from the oil and gas industry in 1980. That industry support continued through 2003, with much of it coming from the Gas Research Institute (now called the Gas Technology Institute) and Schlumberger.
The work with Schlumberger focused on various aspects of hydraulic fracturing. The only contact I ever had with shale gas development was 1983-1984. I spent my first sabbatical at the Lawrence Livermore National Lab working on what was then called the Department of Energy’s Eastern Devonian Shale Project. We were using computer simulation to try to understand how to fracture already fractured shale. [Shale already has natural fractures: see Ingraffea’s comments below.] But it turned out to be a dead end, nobody knew how to do it, it looked like an insoluble problem.
HOW FRANKENSTEIN GREW
Fractures in the shale happened naturally, millions of years ago. And that natural fracture network is essential to “fracking.” If the rock hadn’t been fractured by nature, humans couldn’t “frack” it—re-frack it—effectively. But since it’s already naturally fractured, there’s no way humans can know where the fluid will go. There’s a branch of mathematics called nonlinear chaos that applies here, meaning the slightest change in conditions and you get a tremendous change in outcome.
It wasn’t until 2007 or 08 that I found that somebody had figured out how to do it. I was aghast at what the solution was: high-volume, slickwater fracking from multi-well, clustered pads with very long laterals. It was as if [I’d] beenworking on something [my] whole life and somebody comes and turns it into Frankenstein.
Q. Could you explain laterals?
A. The lateral is the part of the well that is not vertical. It’s the part that snakes through the shale layer in whatever direction that takes.
Q. And slickwater?
A. That’s the name given to the fracking fluid. It’s been laced with a lubricant because contrary to what you’d think, water isn’t slippery or viscous enough to do the job.
Q. Could we backtrack to earlier fracking? Was there only one well?
A. Yes. In so-called conventional fracking for natural gas, there is only one well per pad. That’s because one is hoping to intersect a large, concentrated volume of gas, a trapped bubble if you will. This is not the case in unconventional shale gas, where the gas is distributed, not concentrated, so one needs to drill virtually everywhere with many pads and many wells per pad.
Q. What’s a “pad?” Is it cement?
A. [laughs] No, it just refers to an area. The pad is the area the operator uses or requires to do all of the operations of drilling and fracking and storage, and freshwater and wastewater containment.
If you look at aerial photographs, everything you see—all the drilling rigs and trucks and tanks and the little ponds—that’s a “pad.” And of course multi-wells mean a lot of wells in the area, and you see a clustered pad arrangement when you fly over an area of a state and you see pads put down in a regular grid pattern. There will be a pad every one mile north, one mile south, one mile east, one mile west. When I talk to the public who are not familiar with this, the part of the process they have most difficulty with isn’t the fracking—going down vertically and then turning—the thing they have most difficulty with is this clustered pad arrangement.
Modern shale gas development is, in my opinion, reversing what nature has done over the last 400 million years or so. In shale gas development we’re releasing carbon that nature stored for all that time. For 400 million years nature has been storing carbon underground and in water, in the oceans. And now humans are coming along and releasing the carbon and in the process we have to take fresh water off the surface of the earth and sequester it underground. And we get it out by pumping water down. This is at a time in human existence when global warming from excess carbon dioxide and methane and water shortages are problems worldwide. To me that is Frankensteinian—a devilish, deadly process.
Q. What do you think is most dangerous about fracking?
A. The problem is not “fracking.” The oil and gas industry has made hay out of the word “fracking” to redefine the issue. They say, “we’ve been doing this for 60 years and there’s never been a documented case …”
[“Fracking”] is a relatively brief period of time in the life cycle of an enormous industry when water laced with sand and chemicals is pumped down wellbores and the shale is re-fractured. That’s when something very, very distant from people happens. It takes months, maybe years to completely develop a modern shale gas pad. It might take months to process and transport the methane to a market. The fracking process takes a few hours per well.
People against fracking don’t think of everything that happens before and after. That’s much more risky to human health and the environment. The highest risk to water is when the fracking chemicals are on the surface being stored and being pumped down for fracking, and when they and the harmful materials that had been sequestered in the shale return to the surface after fracking in what is called flowback fluid.
Fracking per se presents little risk to air quality, but the air pollutants from diesel engine exhaust and methane emissions associated with the processes of excavation, drilling, dehumidification, compression, processing and pipeline transport do present serious problems with air quality and global warming. The single most significant element of shale gas development that seems to just not be understood by many is its spatial intensity. It is an extreme form of fossil fuel development because of the very large number of very big wells, total vertical and lateral length and volume of the frack fluid, that have to be drilled throughout a shale play [“play” is the engineering and industry term for “formation.”]
VANISHING LANDSCAPES, POISONED AIR
So what do I think is the largest threat to humans posed by the unconventional development of natural gas from shale formations around the world? And if I wanted to be more specific as an engineer, strictly speaking, what is the greatest threat from clustered multi-well pads, using high-volume hydraulic fracturing from long laterals? That’s the problem.
Because it’s a spatially intense, heavy industrial activity which involves far more than drill-the-well-frack-the-well-connect-the-pipeline-and-go-away, it results in much more land clearing, much more devastation of forests and fields. There’s the necessity of building thousands of miles of pipelines which again results in destruction of forests and fields. There’s the construction of many compressor stations, industrial facilities that compress the gas for transport through pipelines and burn enormous quantities of diesel. [They make] very loud noise and emit hydrocarbons into the atmosphere. Then, there’s the necessary construction of waste pits, and fresh-water ponds which again require heavy earth movement, heavy construction equipment, the off-gassing of waste products from the waste pits, and tremendous amount of heavy truck traffic which again results in burning of large quantities of diesel, increased damage to roads, bridges and increased risk to civilian transportation in the midst of the traffic.
AN INDUSTRY WITHOUT BOUNDARIES
For just about every other industry I can imagine, from making paint, building a toaster, building an automobile, those traditional kinds of industry occur in a zoned industrial area, inside of buildings, separated from home and farm, separated from schools. We have been wise enough because of the way we civilized ourselves to realize that heavy industry should be confined to enclosed spaces. Contrast that here: we have been told by the oil and gas industry that our homes, our schools, our hospitals, even if they are in zoned areas for residences, have to become part of their industry. Oil and gas law in most states trumps zoning. It permits the oil and gas industries to establish its industry next to where we live. We’re asked to participate inside their spaces. They are imposing on us the requirement to locate our homes, hospitals and schools inside their industrial space.
Q. When and how did you start educating people about the threat of the industry?
A. Two things happened. About four years ago, when the shale gas business heated up in NY, I became aware of advertisements on the radio, on TV, in newspapers, articles written in the print media, letters to the editor, op eds, all the way from the New York Times to local papers. And what I’d been reading was astoundingly inaccurate. And if not inaccurate, off-target, incomplete. So my first reaction as an engineer was, they’re not telling the whole truth, they’re missing the main points.
I was asked by some of my fishing buddies—fishermen have a vested interest in clean water by the way—they asked me to give a talk to the local chapter of Trout Unlimited. That’s how I got started on the public circuit. And that caused me to dive more deeply into the literature at the time, the petroleum and engineering literature, and that’s when I began to understand shale-gas development.
Q. So could you comment on several areas where you think the dangers lie?
A. People’s water wells have been contaminated at a significant rate. The industry would say, “When we drill wells some of the wells leak, but it only happens rarely.” I would counter: it used to happen only rarely, now it happens more frequently.
There’s the global threat of global warming, there’s the local threat of contamination of water wells, and there’s the regional threat of air contamination, and surface and groundwater contamination which are exacerbated by the spatially intense form of extraction. Because you have multi-well pads and clustered pads you have very big industrial operations with diesel engines operating for long periods of time in large regions, smog, ozone creation at regional levels.
There are air quality problems because of the nature of shale gas development. Also water quality problems at the regional level because of accidents or purposely dumping of waste in surface waters.
People need to breathe air. People need to drink water. People need to live in an acceptable climate, one they can expect will be stable and unchanging. There are two things involved. Having the community you wanted to live in and you’ve lived in your whole life just taken over from you, and the environment, the water, the air, the climate, the flora the fauna, it’s all under threat. Both of those threats reside on the spectrum of health versus wealth. It’s the health of many versus the wealth of few.
Q. So are you for banning this industry?
A. My position is this. Where shale gas development has not yet occurred, ban it. Period. Where it is occurring, enact ironclad regulations, inspect for compliance with them with dogged diligence, and enforce them relentlessly with fines that really mean something. The Ten Commandments are “regulations,” but as words alone where do they leave us?
THE TRANSITION TO SUSTAINABLE ENERGY
Finally, wherever any fossil fuel is being developed, slow down its production and use as quickly as feasible, considering all facets of this very complex problem. You can’t turn off the use of fossil fuels today and turn on renewables tomorrow. But we must today start diminishing the use of fossil fuels and accelerating the use of renewable fuels. And that’s where the complications come in, of politics, economics and sociology.
Q. Shale gas development hasn’t yet happened in your own state—New York. The New York State movement has managed to stave this off for a long time. What’s next?
A. Public comments on the state Department of Environmental Conservation’s (DEC) regulations.
The DEC was to have spent the last three years of shale gas moratorium [in New York State] doing the right thing: no policy recommended to the governor unless and until rigorous science-based studies of environmental, human health, and economic impacts have been performed and validated. In my opinion, DEC has not performed rigorous science-based studies of environmental, human health and economic impacts. The DEC could have spent the last two years evaluating such impacts where shale gas development is ongoing, thus forming a basis for validation. They did not. Instead they have already proposed regulations, which should have been the last thing to check off if and only if the studies had been done and validated. I understand that democracy is messy, but the messy part should only be the political part, not the science part.
Anthony Ingraffea will debate Penn State’s Terry Engelder on Jan. 23 at 7 p.m. in the Dundee High School Auditorium in Dundee, New York.
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