Tag Archives: shale gas

Series of earthquakes in the US likely triggered by the shale oil & gas industry activity


by  Sid Perkins for Science MagScience Mag

During the past decade or so the oil and gas industry has injected wastewater into deep rocks in eastern Texas, causing Earth’s surface to bulge ever so slightly—and likely triggering a series of tremors there in 2012, a new study suggests. Scientists say the work offers hope that similar analyses of the landscape in other oil- and gas-producing regions could help identify areas at risk of human-caused earthquakes.

The 2012 quakes shook the small town of Timpson, Texas, which lies northeast of Houston near the Louisiana state line. The largest, a 4.8-magnitude quake, and three more magnitude-4 or higher that followed, all originated in a suspicious spot: directly beneath two wells where wastewater generated during oil and gas production in the region is pumped into porous sandstone layers about 1.8 kilometers underground.

Oil and gas producers dispose of their wastewater deep underground for a variety of reasons; sometimes pumping fluid into the reservoir helps boost production, and in other cases it’s a convenient method of getting polluted water out of retention ponds on the surface so that it doesn’t inadvertently spill to pollute rivers, streams, or other sources of drinking water.

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United States now became the first world oil producer ahead of Saudi Arabia , #fracking, #shalegas #US


According to the BP’s annual statistical report, the United States passed last year in front of Saudi Arabia. The American production progressed faster than planned, thanks to the revolution of the fracking (shale oil).

A highly symbolic bar was crossed on the world oil scene. According to the BP’s annual statistical report published on Wednesday, the United States became last year the first world oil producer, in front of Saudi Arabia and Russia. According to the oil group, the production of American crude oil (including liquids of natural gas) increased last year of 1,6 million barrels a day ( Mb / day ), to 11,64 Mb / day, whereas that of Saudi Arabia remained globally stable, in 11,5 Mb / j. Russia, world number three, extracted from its part 10,84 Mb / day in 2014.

Continue reading United States now became the first world oil producer ahead of Saudi Arabia , #fracking, #shalegas #US