South Akcakoca-2 Spudded September 19th; days since spud = 17 Measured depth = 1635 metres; Progress = 802 metres; When drilling it is ROP 13 to 20 metres/hour Week Summary: Drilling New 8 ½” Hole - Conditions hole, loss circulation (mud is lost) and run-in with LCM (Lost circulation material)
- RIH (run in hole) with MWD drill and from 833 metres to 893 metres where tool failed
- POOH (pull out of hole) change tool and RIH
- Drill new hole from 893 metres to 1509 metres with ROP (rate of penetration) 13 to 17 metres/hour
- POOH to change bit nozzles (better now so can try to complete rest of hole).
- Lost circulation and RIH with LCM
- RIH and drill new hole from 1509 metres to 1635 metres and still drilling with ROP 22 metres/hour.
Further Activities: - Drill to total depth
- Run 7” Liner Casing
- Cement in production casing
- Complete well and test.
The well continues to be on the planned schedule, with the RIG having 9% non-productive time (Loss circulation/LCM added 19.5 hours) and 91% productive time. So, 369 hours of production rig time and 36 hours of nonproduction time. Loss of circulation results in the drilled rock chips not being circulated to surface, which causes the drill pipe to stick. Also, the drill bit is rotated with a down-hole mud motor. |