IODP Proceedings, Volume 335 Site 1256, Table T13. Chronology of logging operations in Hole 1256D during Expedition 335. RIH = run into hole, WHC = wireline heave compensator, HRLA = High-Resolution Laterolog Array, FMS = Formation MicroScanner, DSI = Dipole Sonic Imager. This table is available in ASCII and in Microsoft Excel format (see 103_T13.XLS in 103 in TABLES in “Supplementary material”). Activity Date Time (h) Tool depth (mbrf) Comments Rig floor preparation 26 May 2000 Run 1: triple combo Start tool string rig up 2030 Tool string check 2200 RIH 2250 0 Start downlog 27 May 0050 3800 Tool string at end of pipe 0055 3865 WHC testing 0105 4000 Heave was 1–2 m peak to peak; chosen configuration reduced tool motion by 50% Resume downlog 0150 4000 End downlog 0245 5100 Downlog interrupted to fully calibrate resistivity tool (HRLA) to ambient temperature Reach total depth 0255 5165 Begin first pass up 0300 5165 Problem opening caliper; decided not to run repeat to avoid trouble Speed up 0405 4850 Priority was lower ~300 m; continue mostly for caliper Turn off WHC 0455 3950 Pull into pipe 0505 3864 End first pass up 0505 Tools out; start rig down 0700 Tools rigged down 0900 Bowsprings of upper centralizer appear worn out and need to be replaced Run 2: FMS-sonic Start tool string rig up 0915 Upper centralizer bowsprings replaced while rigging up Tool string check 1020 RIH 1050 0 Tool string at end of pipe 1240 3865 Pull tool to surface 1250 3885 Could not pass below 3885 mbrf; assumed trouble with new springs Tool string at surface 1410 0 RIH 1455 0 Inspection showed no damage; assumed springs too stiff and try again Tool string at end of pipe 1625 3865 Tool declared stuck 1800 3885 Tried for >1 h to move, pump… Tool recovery Drop Kinley crimper 2140 Based on depth, count 1 h to work tool down Drop Kinley hammer 2240 2300 h, lost connection with cable head Drop Kinley cutter 28 May 0015 Drop Kinley hammer 0120 0140 h, wireline cut Wireline on deck 0330 Tool string at surface 0940 DSI receiver array sticking out of bit All tools rigged down 1130