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  • Got Gas? Got Quakes

    Parts of Low Country Are Now Quake Country

    By JOHN TAGLIABUE

    LOPPERSUM, the Netherlands — Jannes Kadyk’s modest brick home suffered more than $5,000 in damage. Bert de Jong’s more stately home will need about $500,000 to get back into shape.

    Both houses, like thousands of others, were damaged during recent earthquakes that have shaken the flat farmland in this area dotted with villages and tucked up against the North Sea.

    The quakes were caused by the extraction of natural gas from the soil deep below. The gas was discovered in the 1950s, and extraction began in the 1960s, but only in recent years have the quakes become more frequent, about 18 in the first six weeks of this year, compared with as few as 20 each year before 2011.

    Chiel Seinen, a spokesman for the gas consortium known as NAM, said the extraction had created at least 1,800 faults in the region’s subsoil.

    “These faults are seen as a mechanism to induce earthquakes,” he said.

    The findings in the Netherlands parallel the anxiety about hydraulic fracturing technology in the United States, where several states have halted drilling temporarily, though more commonly out of fear that chemicals used in the process may pollute water sources.

    This month, the New York State Assembly voted to block so-called fracking, the process in which water is blasted through rock at high pressure to extract gas, until 2015, requiring further study on its environmental impact.

    This is not Haiti. The worst tremor, last August, had a magnitude of 3.4, hardly enough to cause widespread devastation. Yet the number of claims for damaged property is already in the thousands, and the company extracting the gas, a consortium of Shell and Exxon Mobil, has set aside $130 million for measures to strengthen buildings against the shocks. Yet most troubling is that experts at government agencies are predicting that the quakes will worsen, to between a magnitude of 4 and 5.

    Is the big one yet to come? Mr. Kadyk, 62, a retired city employee, pointed to cracks around doors and windows in his two-story brick home. He said he was “not an expert, so I cannot say yes or no, but the real experts say if we don’t stop extracting gas, the country risks further earthquakes.”

    Yvonne Doesburg, who runs a small restaurant and hotel called De Oude Smidse near Mr. Kadyk’s home, recalled the August quake, which had its epicenter in Loppersum. “The house shook enormously; it was scary,” she said. Asked whether people expected worse, she replied, “The fear is there.”

    Ms. Doesburg’s husband, Jorg Zart, believes the drilling should go on nonetheless. “It brings jobs,” he said, “and traditionally, this was one of the poorest regions of Holland.”

    His wife dissents. “The money is made here, but spent elsewhere,” she said.

    Public sentiment sides with Ms. Doesburg. Membership in a grass-roots organization called the Groningen Soil Movement, for the province of Groningen, where Loppersum lies, has jumped to 800 people from 200 in the past two years. In a survey of 686 residents published this month, almost two-thirds said they wanted the amount of gas extracted to be cut; 16 percent wanted it stopped altogether.

    “We believe safety is not the top priority,” said Daniella Blanken, a computer programmer and a Soil Movement board member.

    The national government in The Hague insists it is. The northern region is particularly vulnerable because much of it lies below sea level, protected from North Sea waters by huge dikes. If earthquakes threatened the dikes or the intricate system of canals and locks that lace the land, the loss of life could be catastrophic.

    Albert Rodenboog, 60, the mayor of Loppersum for the past decade, compares the government to an acrobat doing a split: While The Hague has safety in mind, he explains, it is also bound by contractual obligations and serious financial considerations.

    “We have to reckon in the future with heavier quakes, with heavier damage,” the mayor said. “But there are domestic delivery contracts, export contracts.”

    The region supplies natural gas to Germany, Belgium and France, and government profits on the sale of gas amount to more than $15 billion annually, Mr. Rodenboog said, money the government can hardly do without at a time of weak economic growth and reduced revenues.

    In January, Henk Kamp, the minister for economic affairs, laid out the options to Parliament in a four-page report. Studies by Shell and Exxon Mobil, as well as by government agencies like the state mining regulator, showed that prior assumptions about the size of possible earthquakes were wrong. “Tremors greater than 3.9 are possible,” he wrote. The mining agency in particular, he said, advised him to urge Exxon Mobil and Shell to “reduce gas extraction in the Groningen field as quickly and as much as is feasibly possible.”

    Yet the minister said he would not make a final decision before the end of this year.

    Developments in the region are watched closely even beyond the Dutch borders because of the debate in Europe about the safety of fracking.

    But Mr. Seinen, the gas consortium spokesman, said fracking was not used in the Netherlands because of the excellent porosity of the rock under Groningen Province. “It is the most conventional gas-winning process,” he wrote in an e-mail. “Drill a hole and the gas flows automatically.”

    Mayor Rodenboog says he recognizes people’s fears. “There is more than the material loss,” he said. “People are mentally stressed by anxiousness about what is coming in the next years.” Yet he said he trusted the government to take the time before making a decision.

    Mr. de Jong, 60, a civil engineer by training who now heads the local school board, disagreed. The risk of greater tremors, he said, “affects the whole region. Banks don’t want to invest anymore, and you cannot sell a house here.”

    Ms. Blanken of the Soil Movement described profits for the region from the sale of gas as minuscule. “About one-half of 1 percent of the gas income flows back,” she said.

    Mr. de Jong’s farmhouse was built in 1894, when farming brought considerable wealth to the area. Elegant Art Nouveau ceilings with carved-wood flowers were installed before 1920, he said. Yet after quakes last August and in February, the ceilings are cracked, and the one in the dining room threatens to fall. The brick walls of the house now bulge by about four inches and will require buttressing, as will two brick chimneys that are in danger of collapse. A balcony that runs along the facade, supported by slender cast-iron columns, must be replaced.

    “We are not sure what these lighter tremors are doing,” he said, sipping tea in his living room. “Maybe they are destroying the buildings piece by piece.”

    “Yet if people are killed in the area, what then?” he asked.

    “We feel taken hostage,” he said. “A hostage in your own home.”

    http://www.nytimes.com/2013/03/27/wo...gewanted=print

  • #2
    Re: Got Gas? Got Quakes

    It's not just natural gas drilling that causes seismic problems. Even "green energy" projects can have their problems as the Swiss found out last decade:

    Quake Threat Leads Swiss to Close Geothermal Project


    Published: December 10, 2009

    A $60 million project to extract renewable energy from the hot bedrock deep beneath Basel, Switzerland, was shut down permanently on Thursday after a government study determined that earthquakes generated by the project were likely to do millions of dollars in damage each year.

    The project, led by Markus O. Häring, a former oilman, was suspended in late 2006 after it generated earthquakes that did no bodily harm but caused about $9 million in mostly minor damage to homes and other structures. Mr. Häring is to go to trial next week on criminal charges stemming from the project. On Thursday, he did not respond to messages asking for comment.

    The findings are a serious blow to the hopes of environmentalists, entrepreneurs and investors who believe that advanced geothermal energy could substantially cut the world’s use of emissions-causing fossil fuels. The report comes as the United States Energy Department is preparing its own review of the safety of a closely related project, by a start-up company called AltaRock Energy, in the hills north of San Francisco.

    The AltaRock project is the Obama administration’s first major test of advanced geothermal energy. Like the Basel project, AltaRock’s plan is to drill miles underground, fracture hot bedrock and circulate water through it to generate steam. The Energy Department began its review after an article in The New York Times in June raised questions about whether AltaRock had been forthcoming about the earthquakes set off by the fracturing in Basel. The AltaRock project has also been plagued with technical problems.

    Comment


    • #3
      Re: Got Gas? Got Quakes

      Originally posted by GRG55 View Post
      It's not just natural gas drilling that causes seismic problems. Even "green energy" projects can have their problems as the Swiss found out last decade:

      Quake Threat Leads Swiss to Close Geothermal Project


      Published: December 10, 2009

      A $60 million project to extract renewable energy from the hot bedrock deep beneath Basel, Switzerland, was shut down permanently on Thursday after a government study determined that earthquakes generated by the project were likely to do millions of dollars in damage each year.

      The project, led by Markus O. Häring, a former oilman, was suspended in late 2006 after it generated earthquakes that did no bodily harm but caused about $9 million in mostly minor damage to homes and other structures. Mr. Häring is to go to trial next week on criminal charges stemming from the project. On Thursday, he did not respond to messages asking for comment.

      The findings are a serious blow to the hopes of environmentalists, entrepreneurs and investors who believe that advanced geothermal energy could substantially cut the world’s use of emissions-causing fossil fuels. The report comes as the United States Energy Department is preparing its own review of the safety of a closely related project, by a start-up company called AltaRock Energy, in the hills north of San Francisco.

      The AltaRock project is the Obama administration’s first major test of advanced geothermal energy. Like the Basel project, AltaRock’s plan is to drill miles underground, fracture hot bedrock and circulate water through it to generate steam. The Energy Department began its review after an article in The New York Times in June raised questions about whether AltaRock had been forthcoming about the earthquakes set off by the fracturing in Basel. The AltaRock project has also been plagued with technical problems.
      I have no problem with geothermal energy per se, but it does seem that it is more likely to cause problems then fracking, given that its intent is specifically to get to the hot rocks near (I believe) subduction zones.. However, the benefit is also greater. Unlike a natural gas well, my understanding is that geothermal wells can produce energy for a very long time.

      But GRG55, you might have more insight here. What can you say offhand about the relatively longevity, and hence cost-effectiveness of geothermal vs. gas and oil wells?

      Comment


      • #4
        Re: Got Gas? Got Quakes

        I think the more relevant question is: would the earthquakes have occurred anyway?

        Unless the fracking is creating stress - as opposed to releasing stress - then the argument that fracking causes earthquakes is false.

        Comment


        • #5
          Re: Got Gas? Got Quakes

          Originally posted by c1ue View Post
          I think the more relevant question is: would the earthquakes have occurred anyway?

          Unless the fracking is creating stress - as opposed to releasing stress - then the argument that fracking causes earthquakes is false.
          Is there any controversy over prolonged natural gas extraction in the low countries causing quakes?

          Comment


          • #6
            Re: Got Gas? Got Quakes

            Originally posted by don View Post
            Is there any controversy over prolonged natural gas extraction in the low countries causing quakes?
            Not to my knowledge. But it only takes one person with no data screaming really loudly to create one. And presto, now there's a "controversy" to teach, and the lack of published evidence is an "elitist conspiracy".

            Let's not go down the "is there a controversy?" slippery slope. All that can lead to is further elevation of the irrational over the rational. ;-)

            What matters is not how loud the discussion is, but which side has the most (or best) evidence. Opinions without evidence don't count.

            Comment


            • #7
              Re: Got Gas? Got Quakes

              New Zealand has a fairly long history of geothermal power stations in the North Island running for about 50 years or so.

              I think there's close to a gigawatt of power produced.

              NZ is also a very seismically active country...which we've learned all too well in recent years in Christchurch.

              I would hazard a guess that NZ's ability to tap it's geothermal power is closely related to our higher than average seismic risk.

              I wouldn't think NZ's geothermal power systems would increase seismic risk...if that were the case I'd think folks would be going nuts about it in light of recent events.

              But I would also think that if we had no seismic risk, we'd be far less likely to be able to affordably tap geothermal power.

              Does that make sense?

              Comment


              • #8
                Re: Got Gas? Got Quakes

                Originally posted by don View Post
                Is there any controversy over prolonged natural gas extraction in the low countries causing quakes?
                no, it's a pretty well established fact. The earthquakes are relatively minor, and the damages too in comparison to what amount of money the gas brings in (the area is rather sparsely populated to European standards).

                keep in mind this is traditional gas extraction and NOT FRACKING that is causing the earthquakes. There's no widescale use of fracking in the Netherlands afaik.
                engineer with little (or even no) economic insight

                Comment


                • #9
                  Re: Got Gas? Got Quakes

                  thanks for the rational response!

                  always refreshing . . .

                  Comment


                  • #10
                    Re: Got Gas? Got Quakes

                    Food for thought. But I will also point out that the author, John C. Daly, is hardly a dispassionate observer either. He is CEO of a company named "U.S.-Central Asia Biofuels Ltd."
                    And I don't know how to check the statistic cited at the end about and 11-fold increase...
                    More Scientific Evidence Linking Fracking and Earthquakes

                    As the practice of hydraulic fracturing to produce natural gas continues to spread not only in the U.S. but worldwide, the scientific community has increasingly focused on the environmental consequences of the technique. The most worrisome side effect of “fracking” is the rise of earthquakes in areas where the practice is extensive.

                    The latest evidence comes in the form of an article in the 26 March issue of “Geology,” a publication of the Geological Society of America.

                    Entitled “Potentially induced earthquakes in Oklahoma, USA: Links between wastewater injection and the 2011 Mw 5.7 earthquake sequence,” the study was coauthored by University of Oklahoma Geophysics Professor Katie Keranen, U.S. Geological Survey geophysicist Dr. Elizabeth Cochran and Columbia University’s Lamont-Doherty Earth Observatory’s seismologist Dr. Heather Savage and Dr. Geoffrey Abers.


                    The study focused its research on seismic activity in Oklahoma over the past two years and concluded that a 4.8-magnitude earthquake centered near Prague on 5 November 2011, was "induced" by the injection wells. Two subsequent earthquakes, including a 5.7-magnitude “event” the following day, was the biggest in contemporary state history, were caused by the first earthquake and existing tectonic stresses in the earth.


                    Oklahoma’s 6 November 2011 earthquake was the state’s largest recorded with modern instrumentation. Two people were injured in the quake, which destroyed 14 homes, buckled pavement and was felt in 17 states, as far north as Wisconsin.


                    Professor Keranen said during an interview that there is excellent seismic data to back up the paper's conclusions, stating, "The evidence that we collected supports this interpretation. We can say several things with certainty: That the earthquakes begin within hundreds of meters of the injection wells in the units they inject into, so spatially we don't have much doubt, there is a direct spatial link."


                    The credentials of Keranen’s coauthors are impressive. Dr. Abers is Associate Director of Seismology, Geology and Tectonophysics of the Lamont-Doherty Earth Observatory and Dr. Savage Lamont Assistant Research Director, while in October 2011 President Barack Obama named Dr. Cochran a recipient of a Presidential Early Career Award for Scientists and Engineers for her contributions to the understanding of earthquake physics and earthquake triggering, the physical properties and geometry of earthquake fault zones and their evolution after earthquakes, and to the development of a new method of earthquake monitoring using low-cost earthquake sensors, the “Quake-Catcher Network (QCN).”


                    The pair’s methodology was thorough. The paper reported that within 24 hours of the first earthquake Dr. Keranen and Oklahoma Geological Survey research seismologist Austin Holland set up seismic recorders in the area. The “Geology” study reports that 1,183 aftershocks were recorded by the seismic network and subsequently examined, of which 798 were studied closely.


                    Oklahoma’s official seismologist, the Geological Survey’s Austin Holland is skeptical of the link between injection wells and earthquakes, stating that more research is needed, with the OGS stating, “The interpretation that best fits current data is that the Prague Earthquake Sequence was the result of natural causes.” Holland’s view is, not surprisingly, shared by the Corporation Commission and the Oklahoma Independent Petroleum Association, a trade group that lobbies for the interests of oil and gas producers.


                    Farther afield, seismologists suspect that oil and gas activity may have triggered earthquakes in Texas, Arkansas, Colorado and Ohio. States have adopted differing
                    approaches to the issue, but there is now no doubt that the seismic issue is beginning to impact state legislatures considering fracking activities. Regulators in Arkansas voted to ban injection wells from one particular region after a series of earthquakes rattled the state two years ago. Oil and gas regulators in Colorado now require a review by a state seismologist before injection well permits are issued, and Illinois has passed legislation requiring injection wells to stop operating if related earthquakes cause a public safety risk. But as yet earthquake risk has not impacted state fracking regulations in California, Texas, New York or Oklahoma.


                    In any case, it would appear that Holland and his fellow skeptics will not have long to wait to comment yet again on local earthquakes, as on 4 March the U.S. Geological Survey reported that a 3.5-magnitude earthquake struck southern Oklahoma, also centered around Prague.


                    In the last four years, the number of quakes in the middle of the United States surged 11-fold from the three decades prior...

                    Comment


                    • #11
                      Re: Got Gas? Got Quakes

                      Originally posted by GRG55
                      Food for thought. But I will also point out that the author, John C. Daly, is hardly a dispassionate observer either. He is CEO of a company named "U.S.-Central Asia Biofuels Ltd."
                      And I don't know how to check the statistic cited at the end about and 11-fold increase...
                      Indeed.

                      This page talks about the history of earthquakes in Oklahoma:

                      http://earthquake.usgs.gov/earthquak...ma/history.php

                      Short answer: Oklahoma has in fact experienced strong earthquakes in recorded history. In fact, the central US has seen very strong earthquakes. It was 140 years ago (New Madrid), so using a 3 decade time scale is immediately suspect.

                      As I noted previously - I can easily believe fracking can trigger an earthquake. I have yet to see any even plausible, much less factual evidence that fracking creates stress and earthquakes.

                      This is very important because triggering an earthquake is actually a public service. Better to release the stress early when the amount of energy released is lower - than let it accumulate into a 'big one'

                      Comment


                      • #12
                        Re: Got Gas? Got Quakes

                        Fracking
                        We Do It For You!

                        (are billboards still in vogue?)

                        Comment


                        • #13
                          Re: Got Gas? Got Quakes

                          Well this will be interesting. The only earthquake of any size I have ever experienced was as a kid when I was on a camping vacation with my parents, in the opposite diagonal corner of Montana, in Yellowstone in 1959. There's some theories that earthquake was one of many induced by human activity:

                          Journal of Seismology
                          January 2013, Volume 17, Issue 1, pp 109-135
                          Mechanical and statistical evidence of the causality of human-made mass shifts on the Earth’s upper crust and the occurrence of earthquakes

                          A global catalog of small- to large-sized earthquakes was systematically analyzed to identify causality and correlatives between human-made mass shifts in the upper Earth’s crust and the occurrence of earthquakes. The mass shifts, ranging between 1 kt and 1 Tt, result from large-scale geoengineering operations, including mining, water reservoirs, hydrocarbon production, fluid injection/extractions, deep geothermal energy production and coastal management. This article shows evidence that geomechanical relationships exist with statistical significance between (a) seismic moment magnitudes M of observed earthquakes, (b) lateral distances of the earthquake hypocenters to the geoengineering “operation points” and (c) mass removals or accumulations on the Earth’s crust...



                          Fracking boom spreads west to Montana


                          Labour shortages and skyrocketing living costs hit small Prairie city

                          CBC News

                          Posted: Apr 2, 2013 1:07 PM MT
                          Last Updated: Apr 2, 2013 1:22 PM MT

                          Northeastern Montana is experiencing a fracking boom and the influx of workers is fundamentally changing the region.

                          Hydraulic fracturing — or fracking – involves pumping water, sand and chemicals deep down well bores to crack open fissures and boost the flow of oil and gas.

                          Much of the activity in the U.S. has been focused in North Dakota's Bakken formation, but drilling has also spread across the border into Montana. The streets of Sidney, Mont., are busy these days awash with a stream of big rigs and service trucks...

                          ..."There's probably a couple of hundred rigs in North Dakota. There are only eight or 10 here, but I heard they are going to be moving this way."

                          Fifer says just the anticipation of those rigs has the local economy heating up.
                          "It’s a whole new world," he said. "The streets can hardly handle the traffic."...

                          ...Real estate agent Allan Seigreid has sold one home twice in recent years — for $18,000 three years ago and a little over $90,000 more recently.

                          "Typically our homes are up considerably. Many are up more than 30 [and] 40 per cent."...

                          ...Mike Wilson has 17 wells already producing on his ranch. He likes the money that comes with fracking, but worries about the land.

                          "Have you talked to anyone that says … 'We know exactly what it’s doing and its plum fine?'" he asked. "Nope. Nobody really knows."...
                          Last edited by GRG55; April 03, 2013, 01:38 PM.

                          Comment


                          • #14
                            Re: Got Gas? Got Quakes

                            Experience quite a few in Cali - from a water bed sloshing around in the dead of night in the late 60s to Candlestick Park for the World Series. No fracking in sight, which in retrospect may have alleviated the tension . . .

                            Comment

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