Until Tropical Storm Lee shut down activity in the Gulf for a few days, there was still evidence that there is oil coming to the sea surface from somewhere near the capped Macondo wellhead, if not from it.
The most recent sighting was on Tuesday from a flyover by On Wings of Care. The pilot of the flight, Bonny Schumaker, reported the location of the slick as approximately 16.5 statute miles northeast of Macondo 252 (MC252: N28°44.20', W088°23.23').
We notified two ships about this large area of oil today, and we gave them the gps coordinates where it could be found (waypoint #9175 below: N28° 53.426', W088° 11.022'). The first was the NOAA "Okeanos Explorer", who seemingly unbeknownst to them, was cruising alongside and then right through a line of those oily globs. The second was the "Sarah Bordelon", who told us they were sampling the oil for BP. (Can BP say it's not there when they have a ship out there sampling it?) We also reported it to the NRC after we landed, who of course reports it to the US Coast Guard (our report was incident #987845).
Video from the flight is here, scroll down about halfway please...
The US Coast Guard, after investigating the reports by helicopter flyover, and an inspection via ROV, said they found no indication of oil, or a leaking wellhead.
Video from the ROV inspection is scheduled to be posted at www.restorethegulf.gov but don't hold your breath waiting to see it. Most of the site is mainly government boilerplate (hey, it's a gov site) and doesn't seem to be updated on a regular basis - the last "news" (and I use that term very loosely) was August 19th.
The Oil Drum has had a discussion about the slick... and information from that group was helpful many times during the summer of 2010. Asked about leaks from subsea fractures, our old buddy Rockman sounded like he remains a bit skeptical:
If the oil is coming from near surface fractures then they would erode almost instantaneously. Actually these wouldn’t be fractures per se. The shallow is unconsolidated mud for the most part. The oil would have been injected into the mud during the blow out and is just now leaking to the water column. This potential amount would be very tiny compared to the original spill.
Also no chance at all of the reservoir flowing up to the surface in this manner. That is physically possible. But there is one possibility that could be extremely dangerous and lead to your worst nightmare: the oil is coming up the casing from the reservoir. IOW the process of pumping cement into the well bore has not isolated the down hole interval. This can happen. And if it did it might not be seen flowing from the top of the abandoned well. A hole in the casing near the surface is certainly possible. Thus the oil could be squirting into the mud and shooting up many yards away from the well.
But so far I have some serious concerns about the validity and accuracy of the original reports. Sounded possible at first but as time passed and more info came in it started having a bit of a problem passing “the smell test” IMHO.
Scott Miles, a chemist at LSU, conducted a chemical analysis on the samples of oil taken from the Gulf on a trip by the Mobile Press-Register newspaper on August 23rd using the "fingerprint" of the oil from the Deepwater Horizon from the Macondo well site, in Mississippi Canyon 252.
“Looking at the fingerprinting, the samples were low concentration, so it is not giving a real good picture. It is possible it could be MC252. It’s south Louisiana crude for sure,” said Miles. “You can’t say 100 percent that it is from the spill itself, but they do need to get somebody out there to investigate further.”
Miles said he could smell the oil in the samples as soon as he opened the jars.
“The fact that it is right over the Macondo well site is pretty tantalizing,” said oil chemist Ed Overton, who was one of the first people contacted by the National Oceanic and Atmospheric Administration after the spill began in April 2010.
“There is no way to say for sure whether the well is leaking, based on what is on the surface,” he said. “Of course it is suspicious.”
Bob Cavnar, author of Disaster on the Horizon, says it is probably unlikely that the well is flowing again.
Where is this oil sheen that’s been observed coming from? I don’t think that reporters from the Times Picauyune and the Press Register are just making all this up, but I also don’t believe that the well is flowing oil. A point to remember here: Deepwater tests demonstrated in both 2000 and 2010, that over 90% of oil introduced into the deepwater never comes to the surface. It’s my opinion that if the well was flowing oil, you would be seeing masses of oil similiar to what I personally observed when I was on location at Macondo in July 2010.
Getting a look at the videos from ROV inspections recently would go a long way to help understand the situation.
Marine Traffic has shown several ships in the area before TS Lee arrived, including the supply vessels the Wes Bordelon and Rachel Bordelon, used by the Natural Resource Damage Assessment in tracking natural oil seeps in the Gulf by collecting water/oil samples where a sheen of oil is found. The vessels also have ROV capability. From the Bordelon Marine website:
We offer a full range of offshore vessels supporting a multitude of activities, including construction support, exploration, production, ROV and dive support, oceanographic research and survey mapping, as well as military and special operations support.
Military and special ops support? A private company with... okay... Well, I guess the lines can tend to be a bit blurry these days...
BP has said repeatedly that the Macondo isn't leaking, but oil keeps appearing. It's there, and coming from somewhere. We need to know where, and what the hell is going to be done about it.
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