Sentences with phrase «fracking wells studied»

Not exact matches

The study was funded by EnCana, the drilling company whose wells the EPA had initially blamed for the contamination.Though the role of fracking remains contested, the advising scientists recommend that the EPA should qualify its conclusions about the risks posed by acknowledging gaps in the existing data and concerning cases like Pavillion.

The EPA's study found that between 25,000 to 30,000 new wells were drilled each year between 2011 and 2014 and that 9.4 million Americans live within a mile of a fracking site.

Further, the Duke study did not detect fracking fluids in any of the wells tested.

One study out of Duke University found a higher - than - average presence of methane in water wells located close to fracking operations, but methane in groundwater can come from a variety of sources, including organic decomposition near the surface.

He obviously also does not realize that once this decsion was reached, a reversal would require changing again the SGEIS which will now presumably point out the problems with fracking as well as the Health Department's study.

There was a time when the administration was preparing to allow a limited number of wells in the Southern Tier, as trial - ballooned in the New York Times in 2012, and as evidenced by its extraordinary care in editing and delaying a federal fracking study around that time to lessen the appearance of environmental risk.

A two - year study of fracking wells in Los Angeles, conducted by consultants Cardno Entrix and funded by the oil industry, monitored 15 environmental factors before and after fracking, including groundwater chemistry, vibration at the surface and at depth, and methane release.

A new study has found that a small number of gas wells are releasing significant quantities of methane into the air even before they are hydraulically fractured, or fracked.

«By measuring naturally occurring ammonium and iodide in numerous samples from different geological formations in the Appalachian Basin, including flowback waters from shale gas wells in the Marcellus and Fayetteville shale formations, we show that fracking fluids are not much different from conventional oil and gas wastes,» said Jennifer S. Harkness, lead author of the study and a PhD student at Duke's Nicholas School of the Environment.

By measuring an uptick in online searches as well as social media chatter and mass media coverage, Ion Bogdan Vasi, an associate professor of sociology at the UI and corresponding author of a new study, demonstrated how local screenings of Gasland — a 2010 American documentary that focused on communities affected by natural gas drilling — affected the public debate on hydraulic fracking.

As fracking and refracturing become more common to make wells produce more oil and gas, it adds to an already fraught competition among agriculture, aquatic ecosystems, and municipalities for water supplies, the study says.

Last year, for instance, an industry - funded study on the methane emissions from fracking wells was published in the prestigious journal, Proceedings of the National Academy of Sciences.

Now a study has shown that the real safety concern is the proximity of water wells to gas wells, and that fracking does not appear to increase the risk of water contamination.

The researchers found 532 wells, or 1.3 percent of those studied, that were fracked about 300 meters or less from the surface — within the depth range of drinking water wells.

Because the location of so many wells is not known - a common phenomenon in many regions where fracking takes place - the study uses a mathematical model to predict the likelihood that the hydraulically induced fractures of a randomly placed new well would connect to an existing wellbore.

As debate roils over EPA regulations proposed this month limiting the release of the potent greenhouse gas methane during fracking operations, a new University of Vermont study funded by the National Science Foundation shows that abandoned oil and gas wells near fracking sites can be conduits for methane escape not currently being measured.

The study, to be published in Water Resources Research on October 20, demonstrates that fractures in surrounding rock produced by the hydraulic fracturing process are able to connect to preexisting, abandoned oil and gas wells, common in fracking areas, which can provide a pathway to the surface for methane.

The most recent such study, published in Environmental Science & Technology, finds that at least 6,900 oil and gas wells in the U.S. were fracked less than a mile (5,280 feet) from the surface, and at least 2,600 wells were fracked at depths shallower than 3,000 feet, some as shallow as 100 feet.

Amy Townsend - Small, the lead researcher for GRO and a UC assistant professor of geology, says the UC study is unique in comparison with studies on water wells in other shale - rich areas of the U.S. where fracking is taking place — such as the Marcellus Shale region of Pennsylvania.

The team applied the technology, called pressurized magic angle spinning, to studies involving underground carbon storage, fracking wells, and tracking complex chemical reactions in fuel production.

None of the wells in the area were being fracked at the time, and none were in the «flowback» stage, according to the study.

The study, «Toward a better understanding and quantification of methane emissions from shale gas development,» was published in the Proceedings of the National Academy of Sciences and undertaken by Dana R. Caulton and Paul B. Shepson of Purdue and a host of co-authors, including Anthony Ingraffea and Robert Howarth, Cornell scientists who are prominent foes of fracking, along with Renee Santoro of Physicians Scientists & Engineers for Healthy Energy, a nonprofit group that has been critical of fracking * (Ingraffea is affiliated with the group, as well).

[11:20 p.m. Updated Prompted by Twitter discussions (more evidence that 140 characters can matter) I'm adding this note to stress that publicity has preceded peer review on research supportive of fracking, as well, as was the case recently with a State University of New York, Buffalo, study.]

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....

Like in Dallas, TX which recently passed a measure prohibiting oil and gas wells within 1,500 feet of homes, a de facto fracking ban, and Los Angeles, which approved a moratorium on fracking until the impacts of the practice can be more thoroughly studied.

For more information, go to Fracking and air pollution According to the study conducted by professor Robert W. Howarth of Cornell University, «3.6 % to 7.9 % of the methane from shale - gas production escapes to the atmosphere in venting and leaks over the lifetime of a well.»

The Duke study found no evidence of contamination from chemicals in the fracking fluids that are injected into gas wells to help break up shale deposits, or from produced water.

The Lisa Mckensey study and report shows that living within a half mile of a fracking well results in a 66 percent increase in cancer.

A study by Carnegie Mellon University noted that the amount of water required to drill all 2,916 of the fracking wells in the Marcellus Shale in the first 11 months of 2010 would equal the amount of drinking water used by just one city, Pittsburgh, during the same period.

Now a new study aimed to better understand cumulative effects of natural occurrences and new anthropogenic pathways, through fracking - drilling.

Studies have suggested that better management can minimize the risk of fracking related earthquakes.

Researchers have just reported the results of their study into the source of water contamination related to fracking wells in Pennsylvania and Texas.

Another study showing how fracking is hardly an unqualified good as it's proponents would have you believe: A new study shows that while in the short term hydraulic fracturing wells will likely have little impact on tourism, over time the increased

Don't look to this study for an objective and well - reasoned scientific analysis of the relative risks for people living near fracking operations, though.

«When it comes to the proximity of active oil or gas wells, there is no definitive evidence that fracking impacted 2015 home values,» the Ballotpedia study concluded.