By Alexis Madrigal
February 11, 2010 |
7:44 pm |
Categories: Earth Science, Energy
A new analysis shows that a deadly mud volcano in Indonesia may not have been a natural disaster after all. The research lends weight to the controversial theory that the volcano was caused by humans.
Villagers near Sidoarjo noticed a mud volcano beginning to erupt at 5 a.m. local time May 29, 2006. It was about 500 feet from a local gas-exploration well. Every day since then, the Lusi mud volcano has pumped out 100,000 tons of mud, or enough to fill 60 Olympic-size swimming pools. It has now covered an area of almost 3 square miles to a depth of 65 feet. Thirty thousand people have been displaced, and scientific evidence is mounting that the company drilling the well caused the volcano.
“The disaster was caused by pulling the drill string and drill bit out of the hole while the hole was unstable,” said Richard Davies, director of the Durham Energy Institute and co-author of a new paper in the journal Marine and Petroleum Geology, in a press release. “This triggered a very large ‘kick’ in the well, where there is a large influx of water and gas from surrounding rock formations that could not be controlled.”
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http://www.wired.com/wiredscience/2010/02/mudvolcano/