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Tue Jan 22, 2013, 04:47 PM

Hydraulic Fracturing Produces Less Wastewater Per Unit of Gas, but More Overall

http://www.nicholas.duke.edu/news/hydraulic-fracturing-produces-less-wastewater-per-unit-of-gas-but-more-overall
Hydraulic Fracturing Produces Less Wastewater Per Unit of Gas, but More Overall

Jan 22, 2013
Contact Tim Lucas at (919) 613-8084 or tdlucas@duke.edu

DURHAM, N.C. -- Hydraulically fractured natural gas wells are producing less wastewater per unit of gas recovered than conventional wells would. But the scale of fracking operations in the Marcellus shale region is so vast that the wastewater it produces threatens to overwhelm the region's wastewater disposal capacity, according to new analysis by researchers at Duke and Kent State universities.

Hydraulically fractured natural gas wells in the Marcellus shale region of Pennsylvania produce only about 35 percent as much wastewater per unit of gas recovered as conventional wells, according to the analysis, which appears in the journal Water Resources Research.

"We found that on average, shale gas wells produced about 10 times the amount of wastewater as conventional wells, but they also produced about 30 times more natural gas," said Brian Lutz, assistant professor of biogeochemistry at Kent State, who led the analysis while he was a postdoctoral research associate at Duke. "That surprised us, given the popular perception that hydraulic fracturing creates disproportionate amounts of wastewater."

However, the study shows the total amount of wastewater from natural gas production in the region has increased by about 570 percent since 2004 as a result of increased shale gas production there.

http://dx.doi.org/10.1002/wrcr.20096 (Doesn’t work yet.)
http://onlinelibrary.wiley.com/doi/10.1002/wrcr.20096/abstract

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Reply Hydraulic Fracturing Produces Less Wastewater Per Unit of Gas, but More Overall (Original post)
OKIsItJustMe Jan 2013 OP
Champion Jack Jan 2013 #1
NYC_SKP Jul 2013 #2
OKIsItJustMe Jul 2013 #3

Response to OKIsItJustMe (Original post)

Tue Jan 22, 2013, 10:27 PM

1. 7,000,000 gallons of fresh water per Frack, water that can't be returned to the natural cycle,

each well may be Fracked up to 15 times ,you can't drink gas

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Response to OKIsItJustMe (Original post)

Thu Jul 25, 2013, 01:22 AM

2. I know how fracturing works, but not how conventional wells work.

How the hell do conventional wells use more water?

I suppose there's still drilling mud, a water mixture used while drilling, but how can it be a greater volume than drilling PLUS fracturing?

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Response to NYC_SKP (Reply #2)

Thu Jul 25, 2013, 08:53 AM

3. “How…do conventional wells use more water? ”

They don’t. They use less water, but they also produce less gas (a lot less.)

Dividing the volume of water used by the volume of gas produced, they require more water per unit of gas produced.

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