Posts Tagged ‘oil drilling’

Abandoned oil wells and oil extraction equipment are common problems that plague Texas residents. One of the largest concerns about this problem is that many oil wells have been left poorly maintained and not sealed. Some linger from the early- to mid-20th century, before current standards were set in place. More recently, regulators have worked to plug and seal the old wells, so they do not act as a channel for liquid pollutants to enter groundwater. But some fear that the recent surge in oil drilling, brought about by the modern practice of hydraulic fracturing (fracking), will catalyze troublesome encounters with the old wells.

Abandoned oil well in Texas - photo by Callie Richmond for The Texas Tribune

Abandoned oil well in Texas – photo by Callie Richmond for The Texas Tribune

Abandoned oil and gas wells are all over the United States in areas such as Texas, New York and Pennsylvania that were prominent regions for oil drilling. An abandoned or “orphaned” well is a well that is no longer in use or that is in such an unusable state that oil and gas can no longer be obtained from it. While there have been great efforts to remedy this problem, in Texas alone there are still more than 8,400 known uncapped wells all over the state.

Uncapped wells pose dangers environmentally and physically. There is the possibility of children or small animals falling into them and seriously harming and potentially killing themselves. They serve as potential groundwater contamination routes and allow poor quality/contaminated water to move between aquifers, further polluting them.

A geyser of methane and gas sprays out of the ground near a Shell drilling site in Tioga County. - photo from StateImpact Pennsylvania

A geyser of methane and gas sprays out of the ground near a Shell drilling site in Tioga County. – photo from StateImpact Pennsylvania

Aside from the general risks abandoned oil wells pose, drilling near them causes even greater dangers. There are still many undocumented wells throughout the U.S. that pose potential hazards. By drilling near abandoned and unknown wells, methane gas becomes more pressurized and works to find a way to the surface. If a high volume of methane gas comes together it creates an explosion, something we would definitely want to avoid. When drilling near wells the potential for an excess of methane to come together and explode becomes exponentially greater. A well in Tioga County, Pennsylvania that was 5,385 feet deep, and lined with four layers of metal casing, is an excellent example of the potential dangers. Eighty years and four months after being dug and used, the well was part of an unfortunate incident — even though it had been inactive for generations. The well played a key role in a methane gas leak that led to a 30-foot geyser of gas and water spraying out of the ground for more than a week. Since there are so many unknown wells all over the state you can see how this could be a problem.

Even wells that have been inactive for extremely long periods of time can still pose a threat. Abandoned oil and natural gas wells can serve as conduits for injected oil and natural gas drilling waste fluids to migrate from underground to an area near the surface where the fluids can break out of the abandoned wells and contaminate groundwater, raising the possibility that abandoned wells can serve as similar conduits for injected hydraulic fracturing fluids.Ed Walker, the general manager of the Wintergarden Groundwater Conservation District in South Texas, said that a few years ago, water came up out of an abandoned 1940s-era well that lay slightly more than a quarter-mile from a disposal well.

Currently the Texas Railroad Commission regulates and oversees any and all drilling in Texas and there are measures in place to make sure these wells are taken care of, however there are still thousands of known wells that have not been suitably covered and filled. In order to ensure that our water supplies and air is not being contaminated we need to push to make sure these wells are properly sealed and all unknown wells are found and dealt with accordingly.

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A quick plug for an amazing five-part series currently running in the Denton Record-Chronicle about the problems drilling on the Barnett Shale is having.  Rig explosions, flooding, mudslides, neighborhood clashes, legal battles, vandalism– it’s like “There Will Be Blood” except happening today… and in Denton.  Somebody get T. Boone Pickens on the phone– isn’t he in this movie?

The really scary thing?  The Railroad Commission, which is supposed to regulate oil and gas drilling in the state, has two of its three members running for Senate in 2010 in a crowded field.   Competing for campaign donations, will either of them dare cross the gas companies?  Do we expect them to side with consumers and homeowners, or will they side with the corporate interests?  So far, at least, it doesn’t seem like anyone from the EPA to the Railroad Commission is looking after the health and environmental effects urban drilling is causing.

Quick Links here: Part 1 Part 2 Part 3 Part 4 Part 5

Part 1: Eminent Dominance Expansion of natural gas industry into Barnett Shale leaves Argyle families little recourse

Jennifer Cole stepped across the parched ground of a North Texas autumn, past her dirt-caked backyard swimming pool, inching closer to a roaring machine. She watched it force its way through the earth, pushing dirt from side to side in waves like an ocean’s tide. Day by day, the bulldozer was remaking the lot behind her home on Britt Drive near Argyle, changing a sloped meadow dotted with oak trees and cattle into a flat and lifeless expanse. She shivered when she thought about what would fill the void.

Since the dirt-moving process began, dust clouds became so thick that her boys couldn’t make sense of them. “Mom, look! A sandstorm,” one said. Her sons didn’t understand why she wouldn’t let them use the pool or play outside after school. She looked down at the pool where a layer of grime clung to the bottom like black frosting, then back to the rolling bulldozer on the other side of the barbed-wire fence.

Cole didn’t know that what was happening behind that fence would consume the next three years of her life. She did know what the bulldozer meant, though. A gas rig was coming. It was Dec. 4, 2005 — a Sunday.

“Sunday,” she said above the roar, “is no day of rest.”

Part 2: Perils Afoot Gas boom brings potential dangers closer to homes (more…)

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