Hey,Drilling out 150ft of cement should take an hour or two (it...

Hey,

Drilling out 150ft of cement should take an hour or two (it is very soft when compared to formation at 15000ft). A bond log will take 8-12hrs depending on exactly what sections they want to look at and what looging tools they run. The basic tool looks at the bond between the casing and the cement and also the cement and the formation.

The job that consistently soaks up time when drilling at this depth is tripping in and out of the hole. An expensive offshore rig could trip at up to 600-800m/hr. However I would bet this rig is doing half that which puts a one way trip at about 15hrs, or a round trip at 30hrs! They haven't said anything about expected ROP's (rate of penetration) once they get back to drilling but at this depth could be as low as 5m/hr.

Hope this helps.

Regards,
Mick.