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Chesapeake Energy Corporation Message Board

  • bluecheese4u bluecheese4u Jun 24, 2013 6:16 PM Flag

    Fracking can increase methane in drinking water, study done in Pennsylvania shows

    Fracking can increase methane in drinking water, study done in Pennsylvania shows

    By Neela Banerjee, Special to The Morning Call
    2:57 p.m. EDT, June 24, 2013

    WASHINGTON — Scientists have found that methane and other gases pose a significant risk of contaminating drinking water wells near natural gas drilling, raising new questions about possible health and safety risks from the production technique known as fracking.

    A study published Monday in the Proceedings of the National Academy of Sciences found drinking water wells in northeastern Pennsylvania within a kilometer of high volume hydraulic fracturing, or fracking, showed methane concentrations six times greater, on average, than in wells further away.

    The gas occurs naturally in the area's aquifers. But the study showed the chemical composition of methane in wells near the drilling sites is the same as the natural gas extracted in the area.

    The researchers tested water samples from wells in six counties where fracking has touched off a natural gas boom. Fracking involves injecting large volumes of water mixed with sand and chemicals at high pressure deep underground to shatter rock formations and unlock oil and gas trapped inside.

    Critics have complained that fracking chemicals have fouled some wells, but no studies have shown widespread contamination.

    Methane that accumulates in confined spaces like basements and sheds poses a risk of explosion. But so far, there is little research into the impact on human health of prolonged exposure to methane, said the study's lead author, Robert B. Jackson, professor of environmental sciences at Duke University.

    The study suggested that the methane and other gases associated with fossil fuels ended up in well water because of faulty metal casings inside a well that allowed gas to seep out as it traveled to the surface. Alternatively, the leaks could be linked to faulty cement jobs that are supposed to keep gas and water from moving up the space between the well cas

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    • There is a Fault line that runs up Rt 11 right thru north east PA..In my lifetime I have heard of two 4.0 earthquakes right on RT 11.The 1st about 40 yrs ago in an area called Hop Bottom and 10 yrs later in Kirkwood ,NY just over the PA/NY boarder. That's more than likely why the wells in that area are producing so much..The ground is naturally fracked . Any drilling activity in that area the gas is likely to find its way thru those natural fractures in the rock.. When you get up into NY state where the shale is not so deep I have heard many old farmers saying they have gas in their water and this goes back way before any drilling activity.. My guess would be that that fault line follows route 11 right up into NY state and will turn out to be the most productive area in the Marcellus because of the natural fracking of the rock,but it comes at a cost to landowners near that fault... The blaming of faulty casings is wrong in my opinion .. I also looked for fault lines on a geological map and could not find them listed ,nor could i find records of the earthquake's in the area which made front page news around here... Something is being overlooked ...

    • Well, make sure that the casings are within safety guidelines and current regulations. Let's have the dates on these explorations and who performed them, please.

      Sentiment: Buy

 
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