Posts Tagged ‘Methane Migration’

Stray Shallow Gas a Challenge for Drillers, Water Drinkers in Northeastern PA

July 11, 2011

An article by Times-Tribune staff writer Laura Legere on Friday entitled “Stray Gas plagues NEPA Marcellus wells” drew a lot of thoughtful and detailed comments online. Mostly, the discussion revolved the causes of local water pollution, shallow, thermogenic methane migration and cement casings. Yet it seems all sides, including the experts cited in Legere’s actual reporting, acknowledge that there’s a lot more gas in the water up there now that fracking has begun in earnest. What’s more, the problem is a riddle that’s far from being solved. My head starts to spin as try to comprehend all the social and geological complexities of Northeastern Pennsylvania. Then, a single comment, clearly written from the heart, shifts the paradigm for me, yet again: (more…)

Marcellus Shale Coalition Dismisses Duke Study, Science

May 10, 2011

According to a Duke University study to be published in the journal, Proceedings of the National Academy of Science, scientists have documented the first systematic link between methane gas from deep Marcellus and Utica shales and contamination of drinking water wells near active gas wells in northeastern Pennsylvania and New York. The study found that methane levels in private drinking water wells was 17 times higher on average in wells within 1,000 feet of a deep natural gas well, based on water sampling done at 68 wells. Methane was found in 85 percent of the wells. SOURCE: (more…)