Project / pile reference,Date,Run / interval ID,Barrel / assembly / set ID,Rig / Kelly / tool reference,Ground description,Operation type (new rock / reaming / clearing / core recovery / other),Start time,End time,Depth from (m),Depth to (m),Cutting time (min),Lifting / clearing / core recovery time (min),Other interruption time (min),Rotary-head speed (rpm),Display channel name,Displayed reading at start,Displayed reading at end,Observed reading range (if varied),Displayed unit,Engine speed (rpm) if recorded,Tool / roller-bit positions changed,Old cutter ID(s),New cutter ID(s),Inspection ID,Photo / video references,Observed response / notes
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,,