Tuesday, May 29, 2012

Multi-year Arctic ice in larger quantities than seen in over a decade, lower temps., ocean currents contribute-LA Times

A region that "in normal years would be accessible by mid-July. This year, it may be unreachable until late July or early August."

5/25/12, "Heavy sea ice could mean slight delay in offshore Arctic drilling," LA Times, Kim Murphy

"The heaviest polar ice in more than a decade could postpone the start of offshore oil drilling in the Arctic Ocean until the beginning of August, a delay of up to two weeks, Shell Alaska officials said.

Unveiling a newly refurbished ice-class rig that is poised to begin drilling two exploratory wells this summer in the , Shell executives said Friday that the unusually robust sea ice would further narrow what already is a tight window for operations. ...

Shell has pledged to end its first season of by Oct. 31 in the Beaufort Sea and 38 days earlier in the more remote Chukchi Sea to remain within the relatively ice-free summer season.

Meeting with reporters and Sen. Mark Begich, D-Alaska, on board the Kulluk drilling rig in the Seattle shipyards, Shell's vice president for Alaska operations, Pete Slaiby, said the company had given up on its controversial attempt to win permission from the federal government to extend Chukchi drilling though October as well....

The summer ice melt in the Arctic has often reached record levels in recent years in what many scientists believe is a sign of climate change. But this year a high pressure zone over the coast of Alaska, low and certain have combined to bring unusually large amounts of ice not only to Alaska's northern coast, but farther south in the Bering Sea as well, officials said.

"I do think it's going to be a slow breakup this year," Kathleen Cole, sea ice program leader for the weather service, told the Los Angeles Times.

The result is that while Canadian waters in the far northern Atlantic have relatively low ice levels, Alaska is an iceberg - at least for now.

"We're seeing multiyear ice that they've not seen in such large quantities in over a decade, and it could impact our ability to start the well," Slaiby said. Of particular concern, he said, is the region of the Chukchi Sea around the company's Berger Prospect - potentially the crown jewel of the company's offshore oil inventory - which in normal years would be accessible by mid-July. This year, it may be unreachable until late July or early August.

Company officials say they need shore-fast ice to retreat at least one nautical mile from the coast of Point Barrow, the northernmost tip of the Alaskan coast, before proceeding....

Friday's tour was to showcase the $150-million refurbishing the company has undertaken on the 29-year-old Kulluk , recently resurrected from nearly a decade of cold storage in the Canadian Arctic....

Shell still must obtain final permits for both offshore leasing areas before sending down the first drill bits, but those are expected to be approved once the new emissions equipment and capping stack are tested.

Conservationists have filed lawsuits challenging air emission permits approved by the Environmental Protection Agency, and Shell has launched a pre-emptive suit in an attempt to get other potential environmental challenges aired quickly."

"More information: (c)2012 the Los Angeles Times " via Climate Depot


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