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Unformatted text preview: Kelley, Joint Investigation Hearing, August 27, 2010, at 289‐90. 202 Testimony of Ross Skidmore, Joint Investigation Hearing, July 20, 2010, at 263‐64. 200 86 after the displacement of the mud from the wellbore. The plan also increased the depth of the cement plug to be set in the well as a barrier to flow. BP chose to hang 3,000 feet of drill pipe below the lock‐down sleeve to weigh it down. 203 Having chosen to do this, BP believed that it needed to set the cement plug deeper than normal to increase the amount of weight on the lock‐down sleeve. The approved plan also called for two negative tests. The first negative test was to be to the wellhead with a seawater gradient on the kill line. The second negative test was to be conducted after displacing with seawater down to 8,367 feet. Further, the approved plan called for the cement plug to be set in seawater after displacement of mud from the wellbore. BP’s temporary abandonment plan also called for the cement plug to be set in seawater after displacement of mud...
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This note was uploaded on 01/18/2014 for the course BEPP 305 taught by Professor Nini during the Fall '11 term at UPenn.

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