The leaking well wont be completely stopped until they drill the other intersecting well and pump the heavy mud and concrete into it. Hopefully until then will be contained and stop the majority of pollution.
The 6" tube has a seal probable an inflatable seal around the edge to seal the MAJOR leak and allow them to pump the oil from the MAJOR leak of two leaks up to a barge instead of letting it flow into the Gulf.
heard the same on the radio as Ron stated but there was a glitch with a kinked cable where they had to stop pumping for a bit. don't know if the pulled the insert or could get it solved without pulling it......
So now that they are able to collect most of the oil, they should be able to determine with better accuracy how much has been pumping into the gulf right? It will be interesting to compare that data to previous estimates.
</td></tr></tbody></table><span style="font-size: small">ROBERT, La. - The Unified Area Command for the response to the Deepwater Horizon oil spill continues to advance multiple subsea options to contain and ultimately stop the flow of oil from the MC 252 well in the Gulf of Mexico.
Overnight the Riser Insertion Tube Tool was successfully tested and inserted into the leaking riser, capturing some amounts of oil and gas. The oil was stored on board the Discoverer Enterprise drill ship 5,000 feet above on the water's surface, and natural gas was burned through a flare system on board the ship.
The test was halted temporarily when the tube was dislodged. While this is disappointing, it is not unexpected given the challenging operating environment.
Technicians have fully inspected the system and have re-inserted the tool.
The tool is fashioned from a 4-inch pipe and is inserted into the leaking riser, from which the majority of the flow is coming. While not collecting all of the leaking oil, this tool is an important step in reducing the amount of oil being released into Gulf waters.
The procedure - never attempted before at such depths - involves inserting a 5-foot length of the specifically-designed tool into the end of the existing, damaged riser from where the oil and gas is leaking. In a procedure approved by federal agencies and the Federal On Scene Coordinator, methanol will also be flowed into the riser to help prevent the formation of gas crystals, known as hydrates. Gas and oil will then flow to the surface to the Discoverer Enterprise drillship.
The Enterprise has the capability to separate the oil, gas and water mixture safely and eventually store or offload the recovered oil onto another vessel.
<span style="font-size: small">We will continue to provide updates as they become available.
The drill pipe that is connected to the drill bit that is used to drill into the oil deposit is only 6" pipe the riser contains a couple of different size pipe with concrete between the different sizes. The outside of the riser maybe 21" but the drill hole is only 6"
From what I have read it appears that the insertion-siphon tube is 4" going into a 21" casing. Nobody is mentioning anything about the 4" going into the 6" drill pipe.
Of course that does not mean a whole lot since the news is geared towards explaining it to the masses, not the tech types.
This website gives some good details: http://www.arabianoilandgas.com/article-7358-feature-section-how-bps-ritt-will-stop-the-spill/ RITT article
Checkout this article which mentions there are rubber diaphragms or collarsaround the insert-siphon pipe.
Maybe those those rubber collars can behydraulicaly inflated to seal against the oil leak pressure, otherwise your notgoing to be forcing the 21" pipe of oil into a 4" pipe. The oil willtake the line of least resistance via the other upstream leak in the21" pipe and/or by spewing past the rubber collars around the 4"insert-siphon pipe.
I can't seem to find mention of pumps on the 4"insert-siphon pipe line anywhere. I doubt that the oil is flowing withenough pressure to push all the way up the mile high 4" insert-siphonpipe. Perhaps there are and they are big enough suckers to put somehigh vacuum on that 4" insert-siphon pipe.
P.S. they are also addingmethanol into the flow up the 4" insert-siphon pipe to prevent freezeup. So that also will dilute the amount of oil that can be siphoned.