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  •  North sea oil rigs have that covered. (0+ / 0-)
    Any collecting device floating on the surface won't last long in that weather.

    North Sea rigs have that technology covered.  I would think collection devices would be undersea though not on the surface.  Collection at the surface would not work.

    Drilling into the sea bed to tap the methane before it got broke through would be way, create negative pressure areas to which the gas would gravitate.

    •  You'd need dozens of platforms (0+ / 0-)

      and hundreds of miles of undersea pipelines that way.  People have suggested mining the clathrates from platforms but the EROEI on stuff like that is way below 1.

      •  Eyup. Just like North Sea, Gulf etc. (0+ / 0-)

        You describe existing technology used for undersea gas collection.

        •  No (0+ / 0-)

          The diluted nature of the methane along with the (incredibly) harsh conditions along with the remoteness almost certainly make this a bad (and probably unfeasible) option.  Better to spend the resources on energy efficiency, clean energy production, climate adaptation, and geoengineering.

          Blogging regularly at Get Energy Smart NOW! for a sustainable energy future.

          by A Siegel on Tue Dec 13, 2011 at 08:42:34 AM PST

          [ Parent ]

          •  Yes (0+ / 0-)
            You'd need dozens of platforms and hundreds of miles of undersea pipelines

            That does describe current offshore oil and gas field technology so if that is the industrial base needed it already exists and in the world's harshest environments.

            Keep in mind that if the methane is being released due to planetary warming the environment will by definition be modified.

            "Better to spend the resources on energy efficiency, clean energy production, climate adaptation, and geoengineering."

            Yes of course but since that is not happening and global warming gas release is increasing and is unstoppable since humans are not going to modify their behavior to prevent it, by figuring out a way to tap into the methane we can utilize it for a fuel and lessen its impact on the climate.

            •  The issue ... (0+ / 0-)

              is the diluted nature of the methane leaks / melts.  This is not drilling a hole in a specific spot and milking it for years on end. And, consider the region ... the Arctic is far harsher and more difficult to work in (think distance from shore-based facilities, population centers, etc ...) than the 'benign' North Sea (for example).

              Blogging regularly at Get Energy Smart NOW! for a sustainable energy future.

              by A Siegel on Wed Dec 14, 2011 at 08:28:21 AM PST

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              •  Methane sounds similar to natural gas. (0+ / 0-)
                The issue is the diluted nature of the methane leaks / melts.  This is not drilling a hole in a specific spot and milking it for years on end.

                Either are most of the current extraction methods for natural gas. These are technologically complex due to the diluted nature of the gas source.

                And, consider the region ... the Arctic is far harsher and more difficult to work in

                We are already drilling oil and gas in these harsh Arctic and sea environments.  Russia is using that technology now for Arctic undersea natural gas extraction.

                And the effects of global warming making the area much more accessible are why the undersea gas mining is feasible.

                If valuable methane gas sequestered in undersea structures is going to be released, it would seem there is both an economic and environmental incentive to capture and sell it.  

                •  RE mining methane hydrates (0+ / 0-)

                  The best discussion that I know of would be the chapter in Kenneth Deffreyes' "Beyond Oil".  He lays down the huge challenges of doing this.

                  There is a difference, as well, between mining methane hydrates and trying to collect the melting methane that is becoming these burps that extend over square kilometer+ areas.

                  Blogging regularly at Get Energy Smart NOW! for a sustainable energy future.

                  by A Siegel on Thu Dec 15, 2011 at 09:45:16 AM PST

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                  •  Deffreyes is fringe, discredited "peak oil" (0+ / 0-)

                    Issue is too much oil, new massive fields in Brazil, tar sands, fracking natural gas, the deep sea drilling, the arctic drilling.  Deffreyes and the "peak oilers" got it backwards.

                    Claiming world production oil peaked in 2005 while Petrobras announcement alone pushed it to 2020 range. Russian Arctic fields will likely push it to 2040.

                    So not a good source for technological issues with methane gas extraction as Deffereyes has a political agenda he pushes very aggressively and tailors his "data" to match his political views.

                    If in fact global warming is causing an accelerated methane release from undersea beds then there are many good reasons to figure out ways to tap it as a relatively clean fuel source.  Replacing coal burning with methane would greatly reduce greenhouse gas out put.

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