BP says 40 percent of cement went “into the FORMATION and the rest remained in the casing” (VIDEO)

BP’s Senior Vice President Kent Wells Technical briefing, August 6, 2010 at 4:00 p.m. EDT:

Jacquetta White: How much cement was pumped into the well…?

Kent Wells: We pumped just a little over 500 barrels of cement down the casing. We talked — I think it was roughly about 200 barrels into the formation and the rest remained in the casing.

There was no further elaboration by Mr. Wells. However, several previous reports have pondered the ramifications of materials escaping from the well into the surrounding formation.

Times-Picayune has reported: “A seep of hydrocarbons could indicate that a fissure somewhere in the underground portion of the well could be letting oil or gas escape into the rock formation surrounding the well. A leak outside of the well would make it harder for responders to contain the oil and gas and could complicate the completion of the relief well.”

Wall Street Journal has reported: “BP PLC has concluded that its “top-kill” attempt last week [in late June] to seal its broken well in the Gulf of Mexico may have failed due to a malfunctioning disk inside the well about 1,000 feet below the ocean floor… The broken disk may have prevented the heavy drilling mud injected into the well last week from getting far enough down the well to overcome the pressure from the escaping oil and gas, people familiar with BP’s findings said. They said much of the drilling mud may also have escaped from the well into the rock formation outside the wellbore.

Houston Chronicle has reported: “Well casing believed to have been damaged during the original blowout could create areas where the relief mud can escape into the rock formation creating a dangerous drop in pressure. ”

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