[QUOTE=alcor;43575]There may be an issue with displacing to 3000 ft below the BOP as it appears to be an unusual practice. [/QUOTE]
Is it true that the reason they wanted to put the top plug at 3000’ below mud level rather than 300’ was that they wanted to remove the valuable drilling mud? If so, they would just have to replace it when they came back to put the well into production, right? So why remove it in the first place?