Understanding Hydraulic Fracturing
In 1643, Evangelista Torricelli became the first person to gauge pressure with a mercury tube. Fast forward to 1897, when Rudolf Diesel invented the diesel engine, backed financially by the Krupp family. Even further back, about 4,000 years ago, the Egyptians came up with the pump. All this gives a brief background to fracking.
Moving ahead to 1949, Halliburton performed its initial fracking operation. Earlier, in 1865, E.A. Roberts received a patent for a method of loading torpedoes with nitroglycerin and dropping them into shallow Pennsylvania wells.
Hydraulic fracturing is based on scientific principles, yet it’s surrounded by some misconceptions. So far, around 2 million frackers have worked in the U.S., and my company has done thousands of these jobs successfully. Still, there’s a disconnect with the public who often find it confusing or are simply skeptical. A lot of this skepticism arises from broader cultural battles and economic disparities between the wealthy and the impoverished, but I’ll get back to that later.
Reopening Key Councils
Rock mechanics play a crucial role by determining the necessary pressure to fracture oil and gas formations. Engineers utilize that data to work out fracture pressure, propagation, and how much slurry they need to pump, alongside the rate. A fracking company then moves in, along with the wireline team, which isolates the wellbore into stages, drilling holes through the casing. The fracking fleet pumps a blend of water, sand, and chemicals into the well, which can reach depths of 1 to 2 miles and often extends an additional 2 to 4 miles horizontally. Typically, shale is pumped at a rapid 3,800 gallons per minute, with a pressure around 10,000 psi.
This pumping carries on for hours, creating a network that allows oil and gas to flow back into the well. Interestingly, this process can be repeated over 50 times for a single well. It’s effective because oil and gas formations are not very thick vertically—around 50 feet—so drilling horizontally exposes much greater lengths. The difference is quite pronounced, thanks to innovations from people like George Mitchell, a Houston entrepreneur who invested millions proving that hydrocarbons could be extracted using horizontal drilling combined with high-velocity fracturing.
By the end of a fracking job, millions of pounds of silica sand will be used. While that might not get much attention, the vast amounts of water involved can stir up controversy. To put it in perspective, the water used for irrigating golf courses in the U.S. surpasses that used for hydraulic fracturing across all of North America, yet golf courses aren’t producing any energy. So, it raises questions about priorities.
The chemicals employed in fracking also draw attention. For instance, polyacrylamide is commonly used to reduce friction and is present in various cosmetics and personal care products, even though it can be toxic in high amounts. Guar, another agent for reducing friction, is made from a food-grade bean extract. Clay stabilizers are safe and inexpensive in large amounts, and the biocides used are akin to household bleach. While small quantities of acids are included, they become harmless once activated. In fact, many of these fracking chemicals have minimal toxicity. If you doubt it, just watch Chris Wright, the current U.S. Secretary of Energy, drink a glass of fracking fluid—he’s still alive and kicking.
Misunderstandings about Fracking
Contrary to some claims, hydraulic fracturing doesn’t destabilize the Earth or contaminate freshwater supplies. I’ve personally not witnessed any issues with aquifers. The fear surrounding wastewater is also easing, as more companies opt to recycle wastewater for fracking. Moreover, electric fleets are beginning to replace diesel ones as part of emission control measures; frackers and clients initiated these changes voluntarily—there were no legal requirements.
Even so, hydraulic fracturing continues to be misunderstood and carries a negative reputation, despite being a vital part of American energy production. Approximately three-quarters of U.S. production stems from fracking wells. If organizations like the Park Foundation—backers of misleading anti-fracking documentaries—succeed in their goals, we could enter a more competitive energy landscape that ends up favoring less reliable and more expensive energy sources.
Climatologist Björn Lomborg points out that shifting to full reliance on electricity would need a battery backup of three months. Currently, we’re talking about equivalent to just 10 minutes of power—potentially costing the U.S. one-third of its GDP annually. The environmental fallout from this approach could be dire and damaging.
Amid this uncertainty, the tech industry’s hunger for power, particularly from AI with its data centers, has led Silicon Valley to turn to natural gas, acknowledging the critical role hydraulic fracturing plays in today’s energy landscape.
