Fracking

What is fracking?

Hydraulic fracturing, or “fracking,” is a controversial method of extracting natural gas and oil from underground rock formations.

How does fracking work?

FIRST, a well is drilled vertically to a depth of 1 to 2 miles.

NEXT, once the drill reaches the designated layer of rock, it turns 90° and drills horizontally for a mile or more.

THEN, a “perforating gun” creates tiny fractures in the rock formations.

FINALLY, a combination of water, chemicals, and sand are pumped into the well at very high pressures. The fluid cracks open the rock—allowing the once-trapped natural gas and oil to flow out—and the sand prevents the cracks from closing.