Fracking - Wikipedia
Fracturing occurs when effective stress is overcome by the pressure of fluids within the rock. The minimum principal stress becomes tensile and exceeds the tensile strength of the material.
Fracking | Definition, Environmental Concerns, & Facts | Britannica
2024年11月28日 · fracking, in natural gas and petroleum production, injection of a fluid at high pressure into an underground rock formation in order to open fissures and allow trapped gas …
Hydraulic Fracturing | U.S. Geological Survey - USGS.gov
2019年3月2日 · Hydraulic fracturing, commonly known as fracking, is the process of injecting water, sand, and/or chemicals into a well to break up underground bedrock to free up oil or …
What is fracking and why is it controversial? - BBC News
2022年10月26日 · Hydraulic fracturing, or fracking, is a technique for recovering gas and oil from shale rock. It involves drilling into the earth and directing a high-pressure mixture of water, …
What Is Fracking? Definition, History, and Environmental Impact
2021年11月24日 · Fracking forces fluid consisting of water mixed with sand and chemicals through pipes called “casings” that are buried hundreds or even thousands of feet …
How Hydraulic Fracturing Works - Education
2023年10月19日 · Hydraulic fracturing, or fracking, is a drilling method used to extract petroleum (oil) or natural gas from deep in the planet. In the fracking process, cracks in and below …
Hydraulic Fracturing 101 - Earthworks
Hydraulic fracturing (aka fracking) stimulates wells drilled into geologic formations, making profitable otherwise prohibitively expensive extraction.
Fracking Explained - oilandgasinfo.ca
Hydraulic fracturing, or fracking, is a proven and highly-regulated technique that has been used by oil and gas companies for over 60 years. Fracking follows the basic principle of cracking rock …
Hydraulic fracturing - PetroWiki
2021年2月26日 · Hydraulic fracturing is the process of pumping fluid into a wellbore at an injection rate that is too high for the formation to accept without breaking. During injection the …
Water-Quality Topics: Hydraulic Fracturing - USGS
Hydraulic fracturing (informally known as hydrofracking, fracking, fracing, or hydrofracturing) is a process that typically involves injecting water, sand, and (or) chemicals under high pressure …