Table T15. Logging operations summary, Site 1253.
Date
(Oct 2002)
Local time
(UTC - 5 hr)
Tool depth
(mbsf)
Remarks
2 1100
Last core on deck
2

Circulated the hole from the bottom up with 30 bbl of sepiolite mud twice
3 2330-0640 150 Triple combo tool would not penetrate a bridge at 4537 mbrf (150 mbsf)
3

Logging operation was postponed until after 10-in casing into the top of the first sill
7 0145-0215
Circulated the hole from the bottom up with 50 bbl of sepiolite mud
7 0215-0230
Hole displaced with sepiolite mud
7 0230-0350
Set back top drive; bottom of pipe put at 90 mbsf
7 2130
Start logging rig-up
8 0000
Start going downhole with triple combo TAP/DIT/HLDS/APS/HNGS tool string
8 0215
Lost power to tools because of oil leaking in HLDS; changed to HLDT
8 0730
Start going downhole again with triple combo TAP/DIT/HLDT/APS/HNGS tool string
8 0901 0 Stop for 5 min at mudline for temperature calibration
8 1006 530 Tool at total depth; start logging up at 900 ft/hr
8 1033 413 Tool back into pipe
8 1127 0 End of run; tool at seafloor
8 1310
Tool back on rig floor
8 1400
Finish rig-down
8 1400
Start logging rig-up
8 1500
Start going downhole with FMS-sonic FMS/DSI/SGT tool string
8 1715 530 Tool at total depth; start logging up at 900 ft/hr
8 1740 413 Tool back into pipe; end of pass 1
8 1756 564 Tool at total depth; start logging-up pass 2 at 900 ft/hr
8 1830 413 Tool back in pipe; end of pass 2
8 1930
Tool back on rig floor
8 2030
Finish rig-down

Notes: Triple combo = triple combination. UTC = Universal Time Coordinated. See Table T7 in the "Explanatory Notes" chapter for explanations of acronyms used to describe tool strings and tools.