Drill ahead to TD at 847 m.
Take last survey pumping 10 m.3 hi-vis. Circulation.
Break ream out to 12 1/4" BHA.
Break out Bit. R/B 2 stands BHA stand.
Prepare for RIH 9 5/8" casing.
P/U shoe joint, check float ok. then hold safety meeting, then 9 5/8" casing to 143 m.