Production - Drill Bit 12 1/4"
Drilled 12 1/4" hole from 650m to 1740m
Jet Nozzle partially clogged
Tight hole sections due to formation instability
Pick up kelly. Break circulation. Condition mud.
Held pre-job meeting then ran casing
Undesired object inside the hole
Rig up cement lines. Install cement head pre-load with plugs.
Lift BOP and rough cut casing stub, lay out casing stub.
Pressure tested stand pipe manifold
Made up 8.50" drilling assembly. RIH
Tagged plugs, drilled out shoetrack,washed to bottom
Leakage needs to be repaired
Pulled back into shoe then performed LOT 600psi EMW of 14ppg
Performed Rig service