op advsory, page-4

Buc
Billabong 2-13-14HBK well (SSN WI 24.86%)
Key Energy Services Rig 370 moved onto location late last week to begin work over operations to
retrieve the remaining drill pipe. Wireline operations indicate that the internal diameter of the drill
pipe is free of cement which will allow back off operations to proceed.
The rig has successfully tripped in the hole with a wash pipe assembly and is in the process of
milling the annulus between the drill pipe and 7 inch casing.
sounds ok maybe one of the more knowledgable posters wilol explain?