Last week, BP lowered a four-story custom-designed concrete-and-metal box 5,000 feet into the Gulf of Mexico, where the plan was for it to rest atop the larger of two remaining oil leaks to capture escaping oil and send it via pipe to a drill ship on the water's surface.
But the oil did not flow through pipe properly because a buildup of frozen crystals, called hydrates, blocked the pipe opening where oil would come out after being sucked from the well. BP had planned for such a complication and used a warm solution between the pipes from the drill ship to keep the oil flowing, but it was not enough.
BP plans to use a smaller box to direct the oil from largest of the leaks into a pipe that will lead to a container vessel. Toward the end of next week, the company will also try to plug the well using a "junk shot", which means that BP will shoot trash at high speed into the blowout preventer (which did not prevent a blowout) to try to stop the flow of oil.
Satish Nagarajaiah, a Rice University engineer who works on offshore drilling issues, said he is concerned that the smaller box will not stay in place.
Neither of these methods inspire a great deal of confidence. I have a vision of trash floating in the oily water. Still, I hope, beyond hope, that one of the efforts is successful.
From NOLA.com.
UPDATE: From NOLA.com:
The company also will attempt a "top kill" of the failed blowout preventer that sits atop the wellhead, pumping what BP officials have called "junk," pieces of ground up tire or golf balls, into the valve assembly under very high pressure.
I wondered what sort of "junk" BP would use.