Sentences with phrase «fracturing fluid into»

Instead of pumping millions of gallons of water and fracturing fluid into the earth, the company GasFrac used a liquefied petroleum gas gel — propane gas compressed into a thick fluid — to break up the rock.

Not exact matches

That surge has coincided in time and place with the boom in unconventional oil and gas extraction such as hydraulic fracturing, or «fracking,» in which high - pressure fluid is injected into the ground to break up the underlying rock and release trapped gas or oil.

Even in a seemingly implausible accidental - release scenario in which all of a well's hydraulic fracturing fluid and untreated wastewater were discharged directly into surface waters for the lifetime of the well, shale - gas electricity had a lower lifetime human toxicity impact, or HTI, than coal electricity, according to the study.

But according to a panel of geologists at the AAAS Annual Meeting, the culprit isn't hydraulic fracturing, or «fracking,» in which geologists crack open subsurface rocks to extract oil and gas; instead, it's the processes associated with pumping wastewater and other fluids back into the ground.

Fracking — or hydraulic fracturing — is a process in which rocks are deliberately fractured to release oil or gas by injecting highly pressurised fluid into a borehole.

Fluids are pumped into a wellbore under high pressure to fracture rocks, and materials called «proppants,» like sand or ceramic, hold the fractures open.

Injecting fluids into the subsurface is one way of increasing the pore pressure and causing faults and fractures to «fail» more easily, thus inducing an earthquake.

Modeling changes in the observed harmonic frequencies indicates that the spectral characteristics of seismic data can provide important information about hydraulic fracture geometry and fluid pressure at depth, leading to important insights into subglacial hydrologic processes.

In work that offers insight into the magnitude of the hazards posed by earthquake faults in general, seismologists have developed a model to determine the size of an earthquake that could be triggered by the underground injection of fluids produced as a by - product of hydraulic fracturing.

The study found no evidence of contamination from chemical - laden fracking fluids, which are injected into gas wells to help break up shale deposits, or from «produced water,» wastewater that is extracted back out of the wells after the shale has been fractured....

The 600 - plus - page report that resulted looks at a variety of ways fracking could have an effect on local drinking water: withdrawing millions of gallons of water needed to frack a well, improperly mixing chemicals with the water at the well, injecting that fracking fluid into the ground at high pressure to fracture rock as much as two miles beneath the surface, handling the contaminated water then produced by the well and finally improperly storing or disposing of that water.

The process of extracting natural gas from shale deposits includes hydraulic fracturing, during which fluids and solids are pumped into the well.

Ohio is in the final stages of making an Exxon trojan horse on hydrofracking into state law, and it appears that the American Legislative Exchange Council (ALEC) connected Exxon's lawyers with co-sponsors of Ohio Senate Bill 315: at least 33 of the 45 Ohio legislators who co-sponsored SB 315 are ALEC members, and language from portions of the state Senate bill is similar to ALEC's «Disclosure of Hydraulic Fracturing Fluid Composition Act.»

A 2014 report from the Groundwater Protection Council documented «continuous and significant regulatory improvement by state oil and gas agencies across the county» and concluded «the risk of fracture fluid intrusion into groundwater from the hydraulic fracturing of deeper conventional and unconventional oil and gas zones can be considered very low.»

Reps. Henry Waxman (D - CA), Edward Markey (D - MA) and Diana DeGette (D - CO) sent a letter to the Environmental Protection Agency today following an investigation into the use of diesel in fracturing fluids.

This fluid is a mixture of chemicals including friction reducers, biocides to prevent the growth of bacteria that would damage the well piping or clog the fractures, a gel to carry materials into the fractures, and various other substances.