Recent developments at the Elgin Well head platform—the Well-from-Hell—in the North Sea, where a massive gas leak has been underway since 25 March:
The operator of the platform, supermajor oil giant Total SA, says it's losing $2.5 million a day on the leak—$1 million daily on efforts to stanch the leak and $1.5 million in daily revenue,reports AFP.
Greenpeace members aboard the German research vessel Koenigin Juliana sailed to the edge of the exclusion zone within three nautical miles of the platform and reported seeing oil on the water in the form of a multicolored sheen, plus a faint smell of gas in the air. Total claims what they saw was a gas condensate sheen and that it poses no threat to marine life, reportsThe Maritime Executive.
The flare on the platform that had been burning when the rig was evacuated extinguished itself Saturday.
Total has outlined plans to stop the gas leak by 1) boarding the platform to control the well, while also 2) drilling a relief well and 3) drilling a backup relief well. The operations are being planned as follows, reports the Oil & Gas Journal:
Total already mobilized two rigs to drill the relief well and backup relief well. Both rigs will move to Elgin after final suspension of their current operations. Both rigs already are working for Total. The Sedco 714 semisubmersible currently is drilling on Fettercairn field north of Elgin. Transocean Ltd. owns and operates Sedco 714. The second rig is a jack up owned by Rowan Cos. Inc. The Gorilla V currently is drilling on West Franklin field. Total said it also is considering additional drilling rigs to maintain the widest possible options available for the response. Two support vessels also are standing by. One is a vessel to deploy remote-operated vehicles for underwater inspections in the vicinity of the Elgin platform. A second vessel is on standby to conduct seabed surveys of possible sites for relief wells.
The five-day-and-counting mega-engineering challenge continues at Total's Well-from-Hell in the North Sea. That name was coined by Frederic Hauge of Bellona, a Norwegian group that monitors the oil industry:
"We estimate the total greenhouse gas potential of the reservoir is roughly 0,56 Gigatonnes CO2 equivalent," said... Hauge. "This is based on recoverable resources of 15 billion cubic meters of gas at the West Franklin Field. The pressure in the well is 200-300 bars higher than Macondo [the Deepwater Horizon field]. If no plugging is achieved, this leak is likely to continue for 10-12 years. This is truly the well from hell," he said.
The best-case scenario, Hauge notes, is if the leak is in a small gas pocket, not an enormous reservoir in the Elgin-Franklin gas field. From Bellona:
Should the gas be flowing from the reservoir, Hauge said, staunching the flow could be a long time operation. If, however it is coming from a gas pocket, it could well bleed itself out.
I described Elgin yesterday as the North Sea's looming Deepwater Horizon—if for no other reason that it also lies at the farthest reaches of our technological abilities to drill and has already clearly exceeded our technological abilities to drill safely. And then there's the matter of our abilities to repair. Or know how to repair.
The video provides a good explanation of the situation, particularly the explosive aspects of it.
But the really pressing issue is the fact that the gas in the field is under extreme high pressure and high temperature. These crappy working conditions are some of the only options left to the UK, reports the Wall Street Journal:
These types of fields are thought to contain a significant proportion of the UK's remaining oil and gas, making them important enough to have been targeted with a specific tax break to encourage development. Yet documents show that the French oil-and-gas producer's Elgin and Franklin fields off the coast of Scotland—at the extreme end of the spectrum of high-pressure and high-temperature fields—have faced major technical challenges, from their discovery right up until the incident that triggered the gas leak.
And while Total claims there's no extremely toxic hydrogen sulfide (aka "Agent Orange" in the ocean) leaking from its Well-from-Hell... well, exactly how do they—or we—know that at this point?
A natural gas well in the North Sea 150 miles off Aberdeen, Scotland, sprung a massive methane leak on March 25. The 238 workers were all safely evacuated. But the situation is so explosive that an exclusion zone for ships and aircraft has been set up around the rig, reports the Mail Online. And nearby rigs have been evacuated, reports the New York Times:
Royal Dutch Shell said it closed its Shearwater field, about four miles away, withdrawing 52 of the 90 workers there; it also suspended work and evacuated 68 workers from a drilling rig working nearby, the Hans Deul.
But that's not the worst of it. The platform lies less than 100 yards/meters from a flare that workers left burning as crew evacuated. The French super-major oil company owner of the rig, Total, dismissed the risk, while the British government claimed the flame needs to burn to prevent gas pressure from building up. But Reuters reports:
[O]ne energy industry consultant said Elgin could become "an explosion waiting to happen" if the oil major did not rapidly stop the leak which is above the water at the wellhead.
Elgin Field: Adapted from map by NordNordWest via Wikimedia Commons.And that may not be the worst of it either. The leak is not in the well apparently but in the chalky seabed around it. No one really knows how reparable that will be—especially with the risk of explosion so high for any workers on site.
Plus, the field produces sour gas: a potent mix of natural gas, hydrogen sulfide, and carbon dioxide. Twenty years ago the cost of extracting energy from such messy stuff would have been prohibitively expensive. Now, not so much. But the true cost could be brutal, reports the BBC :
The major threat to the local ecosystem is the hydrogen sulphide, which is toxic to virtually all animal life. "You might as well put Agent Orange in the ocean," says [Simon Boxall of the National Oceanography Centre in Southampton, UK]. Because the leak is below the water's surface, the hydrogen sulphide is bubbling through the sea water. This is the worst-case scenario, says Boxall, because it could lead to mass animal and plant deaths. Boxall says Total needs to monitor the water quality to see if this is happening.
Veterinarians collect samples from Barataria Bay dolphins, Louisiana: NOAA.
The bottlenose dolphins of Barataria Bay, Louisiana, are showing signs of severe ill health, according to a report from NOAA.
I wrote about the fate of these resident dolphins at the height of the BP's oil disaster in my Mother Jones' piece The BP Cover Up.
Barataria Bay, as you likely remember, in the northern Gulf of Mexico, was horrifically polluted by prolonged exposure to oil during the Deepwater Horizon catastrophe. Here's what NOAA says about the latest problems affecting dolphins there:
Based on comprehensive physicals of 32 live dolphins from Barataria Bay in the summer of 2011, preliminary results show that many of the dolphins in the study are underweight, anemic, have low blood sugar and/or some symptoms of liver and lung disease. Nearly half also have abnormally low levels of the hormones that help with stress response, metabolism and immune function. Researchers fear that some of the study dolphins are in such poor health that they will not survive. One of these dolphins, which was last observed and studied in late 2011, was found dead in January 2012.
Veterinarians collect a urine sample from Y12, a 16-year-old adult male bottlenose dolphin caught near Grand Isle, LA. Y12’s health evaluation determined that he was significantly underweight, anemic, and had indications of liver and lung disease: NOAA.
Since February 2010, more than 675 dolphins have stranded in the northern Gulf of Mexico—a much higher rate than the usual average of 74 dolphins a year. This has prompted NOAA to declare an Unusual Mortality Event and investigate the cause of death for as many of the dolphins as possible.
Some waters in the northern Barataria Basin, a larger area that includes Barataria Bay, remain closed to commercial fishing, as visible oil is still present along the shoreline where the closures are in place. The joint protocol directs seafood safety testing to begin only after visible oil is gone.
A healthy deep-water coral more than 12 miles (20 km) from BP's Macondo well, November 2010: Courtesy Chuck Fisher, PSU. Copyright Woods Hole Oceanographic Institution.
A study published this week in PNAS finds BP's oily fingerprints on severely damaged deep-water coral communities in the Gulf of Mexico.
The new research also fortifies our understanding that the sheer magnitude of the Deepwater Horizon catastrophe—notably its release at depth—made for a totally different beast than for spills occurring only at the surface.
In the photo above you can see a healthy deep-water coral with a healthy brittle star wrapped around it. This photo was taken at a site more than 12 miles (20 km) from BP's Macondo well seven months after the blowout.
Oiled deep-water coral covered with brown wooly material and tissue loss from site 7 miles (11 km) southwest of the Macondo well, November 2010: Courtesy Chuck Fisher, PSU. Copyright Woods Hole Oceanographic Institution.
Contrast that with the photo above of a sick, dead, or dying deep-water coral with a sick or dying brittle star attached to it at 4,300-feet deep (1,310 meters), 7 miles (11 km) from BP's Macondo well seven months after the blowout.
So how do you know if it was BP's oil that was maiming these amazing communities that exist beyond the reach of sunlight?
Alvin collecting sediments and samples of corals for analysis: Courtesy of Chuck Fisher, Pennsylvania State University, and Timothy Shank, WHOI.
The results delivered an oily fingerprint traceable directly to BP's Macondo well spill.
What's not yet known is whether or not these corals and the communities that depend on them will will recover. Members of this research team are monitoring the site, including with time-lapse imaging.
I wrote at length about my adventures in the Alvin world in my Mother Jones' piece Gone.
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