Sentences with word «flowback»

To conduct the new study, the researchers collected and analyzed 44 samples of waters produced from conventional oil and gas wells in New York and Pennsylvania and 31 samples of flowback waters from hydraulically fractured shale gas wells in Pennsylvania and Arkansas.

It can expose people to harm from lead, arsenic and radioactivity brought back to the surface with fracking flowback fluid.

He noted that the hydraulic fracturing process lends itself to more leakage because it takes more time to drill the well, requires more venting and produces more flowback waste, he said.

In 2002 Williams, now WPX Energy, designed and built frac flowback separators to capture Piceance Basin gas that was previously being flared.

In addition, fracking flowback fluids, also filled with toxic chemicals, can rise to the surface and create stagnant, poisonous ponds that pollute the environment and create a hazard for humans, wild animals and livestock.

Flowback amounts can range from 10 to 80 percent of what is sent down, but average around 30 percent, according to Rozell.

Pei Xu develops innovative treatment and desalination technologies for alternative water sources such as municipal wastewater, brackish water, desalination concentrate, oil - and gas - produced water and hydraulic fracturing flowback water.

«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.

The priority areas included developing an accurate picture of whether or not there are potential long - term effects on human health from unconventional oil and gas extraction, how to better detect leaks in gas wells and how much flowback fluid is produced.

This work reports direct measurements of methane emissions at 190 onshore natural gas sites in the United States (150 production sites, 27 well completion flowbacks, 9 well unloadings, and 4 workovers).

This massive development has led to more than 3,900 brine spills, mostly coming from faulty pipes built to transport fracked wells» flowback water from on - site holding containers to nearby injection wells where it will be disposed underground.»

We have found that the DNA - based tracer survives when mixed with samples of hydraulic fracturing fluid and flowback fluid.

(the first called «Flowback» and thereafter called «Produced waste»)(40 % of the hazardous waste remains underground going into aquifers, cracks, sideways, upwards, etc, etc, no one knows) Most of the first «Flowback» is stored in plastic - lined pits nearby.

Municipal water treatment plants are incapable of dealing with the flowback, which is saltier than sea water, the report found.

Use of injection wells - sending the flowback water back thousands of feet underground away from aquifers - has been common in more developed shale formations in the South and West.

What was happening in Pennsylvania is that the flowback water after hydraulic fracturing was being trucked to Ohio so that it could be injected into... permitted injection wells where the geology was better.

Meanwhile, wastewater production — both flowback and produced water — is much greater in the Bakken than in other plays, including the Barnett play in Texas, the Denver - Julesberg Basin and the Marcellus play.

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

«Flowback,» one of the final stages in well development after fracking, is estimated to emit an average of 81 megagrams of methane per operation.

We can verify the tracer presence in frac fluid by testing for it in the flowback water.

Likewise, it survives up to two months exposed to UV in water and flowback, much like conditions in surface impoundment ponds where flowback is being recycled.

In a March 2012 Rolling Stone piece, journalists Jeff Goodell writes: «An even larger threat is the flowback waste that is pumped out after a well is fracked.

(ii) a tank containing hazardous materials, chemicals, condensate, wastes, flowback or produced water within the floodway.

Qi - Deficiency, Qi - Stagnation, Qi - Flowback, Blood Deficiency, and Fluid Retention in Patients with Depression, Psychiatric Disorders, or Psychosomatic Disorders