Environmental attention has recently shifted to the wastewater that comes back to the surface during drilling.
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That has created concerns about the consequences for climate change should the gas escape into the atmosphere during drilling.
Mercury was found in the reservoir during drilling at Kipper, delaying the project, while the Turrum project is faced with delays related to structural designs.
The geophysicist, who has worked for Conoco and Exxon, said the kick during drilling in 2009 - a year before the spill - was evidence of gas or oil intrusion.
The company produces premium monocrystalline sand, which is used to improve the recovery of oil and gas during hydraulic fracturing drilling.
The Noble Discoverer and the Kulluk began work on two wells during the 2012 drilling season, though Shell had earlier hoped to do six wells.
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The so-called Aguinda plaintiffs are villagers who blame Texaco, since purchased by Chevron, for polluting their water supplies during decades of drilling that ended in 1990.
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The team reached the lake's waters during the last drilling season, on Feb. 5, but the few microbes it found in the retrieved samples were all contaminants from the drilling apparatus.
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Some states require natural-gas companies use technology to capture gas during the construction and drilling of wells.
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Obama promised increased offshore drilling before, during his 2008 campaign.
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It has made agreements with the captains of Eskimo whaling boats to move drilling ships out of hunting grounds during the open-water period so they can hunt Bowhead whales.
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The senator from Arizona outlined an energy plan that would include lifting the ban on offshore drilling for oil, a reversal of his position during his 2000 campaign.
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The town board in Sanford, about 100 miles southwest of Albany in Broome County, passed a resolution in September saying there already had been hours of public comment for and against gas drilling and that no further discussion would be allowed during board meetings, although residents could still submit comments in writing.
During Hurricanes Katrina and Rita three years ago, some 100 oil platforms and five drilling rigs were destroyed.
During the spill, half of the oil and most of the gas from the drilling rig never made it to the surface.
The commission had required drilling operators to disclose to the state what chemicals they are injecting into the ground during fracking.
Meanwhile, drilling on the relief well has been stopped at 17, 840 feet for the moment during the sensitive tests.
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