An oil sheen about four miles long has appeared in the Gulf of Mexico near the site of the worst oil spill in U.S. history, a Coast Guard spokesman said Thursday.It was not immediately clear where the oil is coming from, said Petty Officer 3rd Class Ryan Tippets. [Although previous oil has been matched as a "dead ringer" to the BP well.]Coast Guardsmen went to the location after seeing the oil on a satellite image, Tippets said. The response team collected samples and sent them to the Coast Guard Marine Safety Lab in Connecticut for testing.
Is it possible that this fractured, subsea salt geology will make it difficult to permanently kill the oil leak using relief wells?
Yes, it could. The Santa Barbara channel seeps are still leaking, decades after the oil well was supposedly capped. This well could keep leaking for years.Scripps mapped out seafloor seeps in the area of the well prior to the blowout. Some of the natural seeps penetrate 10,000 to 15,000 feet beneath the seafloor. The oil will follow lines of weakness in the geology. The leak can travel several horizontal miles from the location of the leak.[In other words, the geology beneath the seafloor is so fractured, with soft and unstable salt formations, that we may never be able to fully kill the well even with relief wells. Instead, the loss of containment of the oil reservoir caused by the drilling accident could cause oil to leak out through seeps for years to come. See this and this for further background].
The chief electronics technician on the Deepwater Horizon said that the Macondo well was originally drilled in another location, but that “going faster caused the bottom of the well to split open, swallowing tools”, and that BP abandoned that well. You’ve spoken to that technician and looked into the incident, and concluded that “they damn near blew up the rig.” [See this and this].Do you know where that abandoned well location is, and do you know if that well is still leaking?
The abandoned well is very close to the current well location. BP had to file reports showing the location of the abandoned well and the new well [with the Minerals Management Service], so the location of the abandoned well is known.We don’t know if the abandoned well is leaking.
Matthew Simmons talked about a second leaking well. There are rumors on the Internet that the original well is still leaking. Do you have any information that can either disprove or confirm that allegation?
There are two uncorroborated reports. One is that there is a leak 400 feet west of the present well’s surface location. There is another report that there is a leak several miles to the West.