NanTroSEIZE Expedition

11.15, 2007
Day: 56

Weather: Fine but Cloudy
Site: C0006 (NT1-03) (33°01’ N, 136°47’ E)

Science Operations on Deck: Conducted post drilling checks on all drilling equipment and derrick between 00:00 and 02:00 of 15 November. Continued pulling out of the hole and bottom hole assembly got back on drill floor at 17:15. Ship moved to new location (NT2-03B) and arrived at 20:50. Expedition 314 officially concluded midnight of November 15, 2007.

Science Operations in Labs: Science party finalized the reports, began processing C0006B LWD data. Expedition 314 science party will leave the ship in 3 helicopter flights.

11.14, 2007
Day: 55

Weather: Fine but Cloudy
Site: C0006 (NT1-03) (33°01’ N, 136°47’ E)

Science Operations on Deck: Continued LWD to 630.5 meters below the seafloor (mbsf). At 03:15 on 14 November, swept Hi-vis Gel, spot heavy mud and made wiper trip to 478.5 mbsf. Then continued drilling to the Target Depth at 885.5 mbsf at 16:45. Began pulling out of the hole and made up the top drive and displace string with sea water, and continued post jarring on all drilling equipment.

Science Operations in Labs: Science party began packing up data boxes, backing up data, and finalizing reviewed reports. Lab technicians continued setting up instruments.

11.13, 2007
Day: 54

Weather: Cloudy
Site: C0006 (NT1-03) (33°01’ N, 136°47’ E)

Science Operations on Deck: Continued LWD and found pressure dropping due to the lost of communication from MWD tool at 14:00 on 13 November. Continued drilling to the 513 meters below the seafloor and swept Hi-vis Gel and spot heavy mud.

Science Operations in Labs: Continued meeting among NanTroSEIZE PMT members onboard at 10:00 on 12 November, then preparation for Expedition 315 coring was discussed between scientists and operations personnel. Lab officer organized lab tour and demonstrated core flow to Expedition 315 scientists. Lab technicians continued setting up instruments and cross-over of lab officers.

11.12, 2007
Day: 53

Weather: Fine but Cloudy
Site: C0006 (NT1-03) (33°01’ N, 136°47’ E)

Science Operations on Deck: After pulling out the MWD tool string for the pilot hole, Chikyu moved 2 nm upstream, and making up the LWD assembly at 11:15 a.m. on 12 November and began running into the hole while ship was drifting. Connected to the top drive system at 3854 m and running in with circulation. At 00:45 a.m. of 13 November, seabed was confirmed at 3871.5 m water depth and spudded.

Science Operations in Labs: Meeting was held to discuss end of cruise logistics and post-cruise research plan. Preparation for Expedition 315 coring was discussed between scientists and operations personnel. Expedition 315 scientists continued working in the lab area with lab technicians. Lab technicians continued setting up instruments and cross-over of lab officers.

11.11, 2007
Day: 52

Weather: Fine but Cloudy
Site: C0006 (NT1-03) (33°01’ N, 136°47’ E)

Science Operations on Deck: Continued pilot drilling to 599.5 meters below the seafloor (mbsf) and made short trip between 599.5 mbsf and 454.5 mbsf. Then drilling continued and tightened up lube-oil gear shaken loose due to heavy vibration. Reached Target Depth (885.5 mbsf) at 20:45 on 11 November. After sweeping Hi-vis Gel and spotting kill mud, pulling out of the hole from 20:45. Drill floor equipments were checked and tighten up due to the heavy vibration between 01:00 and 03:45 on 12 November.

Science Operations in Labs: Meeting was held to discuss end of cruise logistics and post-cruise research plan. Expedition 315 advanced scientists group embarked Chikyu and started working in the lab area. Lab technicians continued setting up instruments and cross-over of lab officers.

11.10, 2007
Day: 51

Weather: Cloudy
Site: C0006 (NT1-03) (33°01’ N, 136°47’ E)

Science Operations on Deck: Continued pilot drilling to the 306.5 meters below the seafloor (mbsf) and swept Hi-vis Gel and spot heavy mud at bottom at 14:00 on 10 November. After that short wiper trip was made between 306.5 and 156.5 mbsf between 14:15 and 15:30. Then continued drilling to 500.5 mbsf.

Science Operations in Labs: Continued Review process on C0004 reports. Lab technicians continued setting up instruments including thermal conductivity measurement system calibration and documenting, XRFCL, MAD, Thermal demagnetizer; training- MSCL-I and MSCL-C lectures.

11.9, 2007
Day: 50

Weather: Rain
Site: C0006 (NT1-03) (33°01’ N, 136°47’ E)

Science Operations on Deck: Chikyu moved to 5 nm upstream at 00:00 on 9 November and began running into the pilot hole with MWD assembly while drifting from 04:00. Continue running drill string from 06:00 while checking every single connection, which might have loosed from strong vibration during the drilling in previous hole. Running into the hole with 100m/h speed and pump rate of 85 spm. With absence of ROV monitoring due to the deep water, spud Site C0006A at 00:15 on 10 November (3875 m water depth).

Science Operations in Labs: Continued Review process on C0004 reports. Lab technicians continued setting up instruments including thermal conductivity measurement system and sample tool bin.

11.8, 2007
Day: 49

Weather: Rain
Site: C0006 (NT1-03) (33°01’ N, 136°47’ E)

Science Operations on Deck: Chikyu moved to NT1-03 at 01:00 a.m. 8 November, and began deploying beacons at five different locations from 06:30 to 23:00. Calibration was done at 01:45 of 9 November, and moved the ship to upstream 5 nm. Drifting began at 04:00 and running into with check on every joint connection.

Science Operations in Labs: Site summary meeting for Site C0004A was done and reports submission was set on 9 November. Continued Review process on C0003 Site reports, and report writing for C0004. Lab technicians continued setting up instruments and practice to carry core rack from laboratory to core container.

11.7, 2007
Day: 48

Weather: Fine but Cloudy
Site: C0006 (NT2-01G) (33°13’ N, 136°43’ E)

Science Operations on Deck: ROV jumped at 09:15 on 7 November and recovered back shortly due to the sonar problem. After repairing ROV, ship moved to 2 nm upstream, and launched ROV at 17:00. Tag seabed at 2524.5 m water depth at 19:00. After having ROV hydraulic problem, stopped drilling at 20:15 and pulled out to the surface while drifting and recovering ROV. At 01:00 on 8 November, ship moved to NT1-03 location while making up MWD BHA.

Science Operations in Labs: Discussion on change of drilling plan due to pulling out of Site NT2-01G for ROV repair. Continued Review process on Site C0003 reports, and working on Site C0004 LWD data. Lab technicians continued setting up instruments and maintenance of air compressor connecting to nitrogen gas generator; training, core splitter and SQUID operation.

11.6, 2007
Day: 47

Weather: Cloudy
Site: C0006 (NT2-01G) (33°13’ N, 136°43’ E)

Science Operations on Deck: After fixing ROV during wait on weather, began running drilling assembly to drill pilot hole at NT2-01G with ROV monitoring. At 00:00 on 7 November, stopped drifting and went back to location.

Science Operations in Labs: Continued Review process on C0003 Site reports, and working on processing C0004 LWD data. Lab technicians continued setting up instruments, MSCL-I, GCs, carbonate analyzer; training, MSCL-W operation and core location management system.

11.5, 2007
Day: 46

Weather: Rain
サイト：C0005（NT2-01-E）（33°13’ N, 136°43’ E）

Science Operations on Deck: Spud the pilot hole at 2446.5 m water depth at 01:00 a.m. on 5 November. First jet-in to 50 meters below the seafloor (mbsf) and then rotary drilled to 524 mbsf without any problem. When trying to make short trip, observed pull, and worked through packed off by increasing pump rate. At 20:15 p.m., stuck pipe at 461 mbsf and became free after applying torque and work pipe. Then circulate bottoms up and decided to pull out due to worsening hole conditions. Moved the ship to the next site (NT2-01G) from upstream location at 05:00 on 6 November for ROV launch.

Science Operations in Labs: Review process continued to Site C0003 reports. Science party began working on Site C0004 LWD data. Science party met and discussed on sonic processed data and publication schedule. Lab technicians had bi-weekly department safety meeting, and continued setting up instruments, MSCL-C, core splitter, SQUID, EA, GCs, carbonate analyzer.

11.4, 2007
Day: 45

Weather: Fine but Cloudy
Site: C0005 (NT2-01-E) (33°13’ N, 136°43’ E)

Science Operations on Deck: Recovered beacons and set those in the new location (NT2-01E) at 10:41 a.m. on 4th November. Calibration finished at 15:29 p.m. Moved to 5 nm upstream and began running in from 18:45 p.m. while drifting at 3 knots current. Positioned the ship at location at 00:45 a.m. on 5th November, tag the seabed at 2446.5m water depth, and spuded at 01:00 a.m. Jetted-in for 50 m and then rotary drilling to the 178 m.

Science Operations in Labs: Review process continued to Site C0003 reports. Science party began working on Site C0004 LWD data. Lab technicians continued setting up instruments, MSCL-C, core splitter, SQUID, EA, GCs, carbonate analyzer; training, X-ray CT operation.

11.3, 2007
Day: 44

Weather: Fine but Cloudy
Site: C0004 (NT2-01-I) (33°13’ N, 136°43’ E)

Science Operations on Deck: Continued drilling and reached the target depth of 400 meter below seafloor at 12:30 p.m. on 3rd November. Pulled back all pipes and LWD tools on drill floor at 00:00 a.m. and dumped the memory data. Recovered beacons and set at new location (NT2-01E).

Science Operations in Labs: As review process finished for Site C0002 reports, new C0003 reports came in for review. Lab technicians continued setting up instruments, core splitter and conbonate analyzer; training, X-ray CT operation.

11.2, 2007
Day: 43

Weather: Fine but Cloudy
Site: C0004 (NT2-01-I) (33°13’ N, 136°43’ E)

Science Operations on Deck: Began LWD assembly make up and running into from 04:00 a.m. on 2nd November. Spudded the Hole C0004B with LWD assembly at 18:45 p.m., jetted-down to the 50 m and drilled to 155.5 meters blow seafloor.

Science Operations in Labs: Continued review on Site C0002 reports. Review on the process of site report initiated by USIO-Publications specialist. Lab technicians continued setting up instruments, core splitter, pycnometer, ion chromatograph and titrator.

11.1, 2007
Day: 42

Weather: Rain
Site: C0004 (NT2-01-I) (33°13’ N, 136°43’ E)

Science Operations on Deck: Spudded the Hole C0004A at 04:45 on 1 November, jetted-down to the 70 m and continued drilling. Reached Target Depth 400 meters below seafloor without any problem. Pulled out of the hole and making up LWD assembly.

Science Operations in Labs: Continued review on Site C0002 reports. Site summary meeting for C0003 was made and discussed the results from each group. Lab technicians continued setting up instruments, and confirmed communication between bridge and core container regarding gas sensor functionality.

10.31, 2007
Day: 41

Weather: Fine but Cloudy
Site: C0004 (NT2-01-I) (33°13’ N, 136°43’ E)

Science Operations on Deck: Make up BHA for pilot hole with 8-1/2" PDC bit, bit sub, stabilizers, drill collars and jar, moved the ship to 4 nm upstream. Running into while drifting back to the site at 20:00 on 31 October. Positioned the ship and confirmed the hole coordinates at 04:30 on 1 November. Spud the Hole C0004A (2632 m water depth) on 04:45 and jetted down to the 70 meters below seafloor (mbsf).

Science Operations in Labs: Continued review on Site C0002 reports. Continued discussion on lab measurements and tour in the lab was made between Specialty Coordinators and Lab. officers. Lab technicians continued setting up instruments.

10.30, 2007
Day: 40

Weather: Rainbr /> Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: Completed second plug and cement job and recovered beacons from Site C0003. Continued to prepare for next drilling operations.

Science Operations in Labs: Continued review on Site C0002 reports. Science party meeting on new sites was made. Continued discussion on lab measurements was made between Specialty Coordinators and Lab. officers. Scientists and lab technicians attended bi-weekly safety management system meeting. Lab technicians continued setting up instruments, close-up photo system, SQUID, MSCL-C and titrator.

10.29, 2007
Day: 39

Weather: Fine but Cloudy
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: After numerous attempts to recover the remaining drill pipes, fishing assembly was pulled out of the hole and finished. Made up cement stringer and running into the borehole. Conducted 1st cementing operation.

Science Operations in Labs: Continued review on Site C0002 reports. Science seminar on Magnetization in the Nankai Trough was held and lab measurements discussion was made between Chief Project Scientists, Specialty Coordinators and Lab. officer. Scientists and lab technicians attended bi-weekly safety management system meeting. Lab technicians continued setting up instruments, close-up photo system, SQUID and titrator.

10.28, 2007
Day: 38

Weather: Cloudy
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: Rig-up recovery equipment at 06:00 on 28 October, and lowered down to the borehole. Continued trying to latch on fish with overshot.

Science Operations in Labs: Site C0002 reports are in review by Co-Chiefs and Expedition Project Manager. Lab technicians continued setting up instruments, X-ray CT, AQUID and carbonate analyzer.

10.27, 2007
Day: 37

Weather: Fine but Cloudy
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: Loading supplies and maintenance of drill equipments while waiting for weather by Typhoon No. 20 (FAXAI). Sailed back to the NT2-01 location at 16:00 on 27 October and made up overshot assembly. Then ship moved 6 nm upstream at 18:15 for running string and ROV dive while drifting. Back in the position, re-enter the Hole C0003A. Continued attempting to recover the lower part of drill pipes and LWD assembly in the hole.

Science Operations in Labs: Final site summary meeting for C0003 was held and discussed on the final results from each groups. Submission of reports due on 28 October. Lab technicians continued setting up instruments, titrator and carbonate analyzer. Monthly Lab Safety Patrol was made with Operation Superintendent, lab inventory system was discussed and ship inventory system was observed.

10.26, 2007
Day: 36

Weather: Rain
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: Continued attempting to recover the lower part of drill pipes and LWD assembly in the hole at Site C0003A (NT2-01). Running into with overshot assembly in the borehole. The Chikyu sailed out of the Kuroshiro current 11 nm NNW to load and to avoid Typhoon No. 20 (FAXAI).

Science Operations in Labs: Science party meeting was held and discussed for drilling plan in the remaining 3 weeks. Lab technicians continued setting up instruments, SQUID, MSCL-S, titrator and carbonate analyzer. Meeting on the improvement of science services onboard was held between Expedition Planning Manager, Lab Officer and CDEX Science Support staffs.

10.25, 2007
Day: 35

Weather: Rain
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: Attempting to pull out of the lower part of drill pipes and LWD assembly in the hole at Site C0003A (NT2-01). Running into with overshot assembly in the borehole.

Science Operations in Labs: Site summary meeting for the Site C0002A was held with discussion based on the presentations from each groups. Lab technicians continued handing over and testing instruments.

10.24, 2007
Day: 34

Weather: Overcast
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: Attempting to pull out of the lower part of drill pipes and LWD assembly in the hole at Site C0003A (NT2-01). Running into with overshot assembly and trying to re-enter the well.

Science Operations in Labs: Site summary meeting for the Site C0002A was held with discussion based on the presentations from each groups. Lab technicians continued training and testing instruments, and installed sonic homogenizer and incubator in the Microbiology Lab.

10.23, 2007
Day: 33

Weather: Fine but Cloudy
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: Continued to pull out of the lower part of drill pipes and LWD assembly in the hole at Site C0003A (NT2-01). ROV jumped to the sea and monitors and making up and running overshot assembly.

Science Operations in Labs: Data analysis and interpretation was continued in each group and across groups for the Site C0002A. Lab technicians continued training and testing instruments; cryogenic magnetometer, XRD, elemental analyzer, ICP-AES and titrator.

10.22, 2007
Day: 32

Weather: Fine but Cloudy
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: Continued to pull out of the drill pipes and LWD tools in the hole at Site C0003A (NT2-01).

Science Operations in Labs: Data analysis and interpretation was continued out in the science party for the Site C0002A. Science party meeting was held to update the operational info and site summary meeting schedule. Lab technicians continued setting up instruments, thermal conductivity, cryogenic magnetometer, XRD, pycnometer and titrator.

10.21, 2007
Day: 31

Weather: Fine but Cloudy
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: After reaching about 530 meter below seafloor, drill string was packed off and lost connection. Currently pulling out the remaining drill pipe and LWD tool from the hole.

Science Operations in Labs: Data analysis and interpretation was carried out in the science party for the Site C0002A. Data processing engineer finalized the sonic data processing and density data as well. Lab technicians continued setting up instruments, thermal conductivity, cryogenic magnetometer, titrator and ICP-AES.

10.20, 2007
Day: 30

Weather: Fine but Cloudy
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: The Chikyu drifted to NT2-01 site and continued running drilling assembly to the seawater. Spud the Hole C0003A at 12:40. Jetting down to the 50m and then rotary drilling with 35m/hr.

Science Operations in Labs: Data analysis and interpretation was carried out in the science party for the Site C0002A. Data processing engineer made presentation and discussion on sonic data processing. Lab technicians continued setting up instruments, thermal conductivity, cryogenic magnetometer, titrator and ICP-AES.

10.19, 2007
Day: 29

Weather: Overcast
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: After arriving NT2-01 location, 4 beacons were deployed at 03:30 of October 19. Then ship sailed to 12 nm upstream at 14:00 on 19 October while making drilling assembly. After LWD shallow test, ship drifted back to the site at 21:15 with 2 knots while running the LWD Assembly.

Science Operations in Labs: Reviewing Site C0001 reports carrying on while sonic data from C0002 began processing. Lab technicians continued setting up instruments, Interstitial Water analyses' experiment, core rack handling, and X-ray CT operating training.

10.18, 2007
Day: 28

Weather: Fine but Cloudy
Site: C0003(NT2-01) (33°13’ N, 136°42’ E)

Science Operations on Deck: Continued pulling out of the hole and dumped the data from LWD tools. All data dump were smooth except seismic data which needed more time due to the battery ran out during pulling out. Then recovered beacons from the site and sailed to NT2-01. After maintenance, ROV set the beacons.

Science Operations in Labs: Discuss about change of sequence of further drilling sites and approved. Lab technicians continued setting up instruments, Interstatial Water analyses' experiment, maintenance of microscopes, and X-ray CT operating training.

10.17, 2007
Day: 27

Weather: Fine but Cloudy
Site: C0002(NT3-01) (33°18’ N, 136°38’ E)

Science Operations on Deck: Reached Target Depth at 1401.5 meter below seafloor (mbsf) during Stage 1 operation at 11:15 and pulled out of the hole. LWD tools were back on rig floor at 02:15 and dumped the memory data.

Science Operations in Labs: Continue monitoring C0002 real-time data. Site C0001 reports began review. PreSpud meetings were held and finalize the drilling program in addition to technical seminar on Vertical Seismic Profiling. Lab technicians continued setting up instruments, Interstatial Water analyses' experiment, and X-ray CT operating training.

10.16, 2007
Day: 26

Weather: Fine but Cloudy
Site: C0002(NT3-01) (33°18’ N, 136°38’ E)

Science Operations on Deck: Drilling continued to the 1243.5 meter below seafloor (mbsf) without any drilling problems as hole condition was good.

Science Operations in Labs: Continue monitoring C0002 real-time data. Site C0001 reports began review. Seminar on LWD tool shocks and vibrations was done by LWD Engineer. Lab technicians continued setting up instruments, Interstatial Water analyses, and maintenance of microscopes.

10.15, 2007
Day: 25

Weather: Overcast
Site: C0002(NT3-01) (33°18’ N, 136°38’ E)

Science Operations on Deck: Drilling continued to the 790.5 meter below seafloor (mbsf). At the half-way to 1400mbsf Target Depth, wiper trip was proceeded up to 8 stands with sweep and spot Hi-Vis gel, re-log at data missing zone. Due to strong ocean current (3.5 knot, today), equipment check was carried out on HPS, guide horn, loose bolts and couplings.

Science Operations in Labs: Continue monitoring C0002 real-time data. Final Site Summary Meeting was held and discussed for reporting of each scientist groups' results and plan for figures for the Site C0001. Reviewing reports will begin this week on site summary 1st drafts. Lab technicians continued setting up instruments in the core processing and lab street decks.

10.14, 2007
Day: 24

Weather: Overcast
Site: C0002(NT3-01) (33°18’ N, 136°38’ E)

Science Operations on Deck: Spud at 00:45 of October 14 at 1936m water depth. Jet-in to the 70.5 m below seafloor and began drilling to the 478.5 meter below seafloor. Hole deviation surveys ranged between 0.75 to 1.09 degree. LWD tools looks working well and seismic data tool results shows better than previous site.

Science Operations in Labs: Continued LWD data analysis and report writing of the Site C0001 data. Lab technicians continued setting up instruments in the core processing and lab street decks.

10.13, 2007
Day: 23

Weather: Overcast
Site: C0002(NT3-01) (33°18’ N, 136°38’ E)

Science Operations on Deck: Running LWD assembly at low current (0.9kt) location which is 14 miles NW. After running and loading supplies from supply boat, drifted back to NT3-01 location and continued running to the seafloor.

Science Operations in Labs: Continued LWD data analysis and report writing of the Site C0001 data. Lab technicians continued setting up instruments in the core processing and lab street decks.

10.12, 2007
Day: 22

Weather: Fine but Cloudy
Site: C0002(NT3-01) (33°18’ N, 136°38’ E)

Science Operations on Deck: Final check on DPS troubleshooting was done without problem. Picking up drill collars and LWD equipment. Ship moved to low current area, load supplies and make up LWD assembly.

Science Operations in Labs: Presentations from each group were discussed among science party members at Site Summary Meeting for the Site C0001. Final results discussion will be made again on October 15 and review and edit on reports from October 16. Lab technicians continued setting up instruments in the core processing and lab street decks.

10.11, 2007
Day: 21

Weather: Fine but Cloudy
Site: C0002(NT3-01) (33°18’ N, 136°38’ E)

Science Operations on Deck: Waiting on DPS investigation. Continue picking up drill pipes and general maintenance on the rig floor.

Science Operations in Labs: Continue working on interpretation of sonic and resistivity data. Discussion on preliminary results of sonic data processing was held based on the presentation from data processing specialist, and then finalized the processing. Lab technicians continued setting up instruments in the core processing and lab street decks.

10.10, 2007
Day: 20

Weather: Overcast
Site: C0002(NT3-01) (33°18’ N, 136°38’ E)

Science Operations on Deck: Waiting on DPS investigation. Continue picking up drill pipes and general maintenance on the drill floor.

Science Operations in Labs: Scientists continue working on interpretation of sonic and resistivity data. Lab technicians continued setting up instruments in the core processing and lab street decks.

10.9, 2007
Day: 19

Weather: Overcast
Site: C0002(NT3-01) (33°18’ N, 136°38’ E)

Science Operations on Deck: Waiting on Dynamic Positioning System investigation. Picked up drill pipes to be ready for coming sites at deeper water depth while assembling free fall funnel.

Science Operations in Labs: Sonic data will be ready as the pre-processed prints and data to science party. Science party began interpretations on the Resistivity data.
Lab technicians checked geotechnical core measurement data in J-CORES and made core dry-run for cross over team while setting up instruments in the core processing and lab street decks.

10.8, 2007
Day: 18

Weather: Overcast
Site: C0002(NT3-01) (33°18’ N, 136°38’ E)

Science Operations on Deck: Waiting on weather and Dynamic Positioning System testing for the next LWD hole. General maintenance of instruments was carried out on the drill floor and preparation of free fall funnel.

Science Operations in Labs: Science party started working on the Resistivity data acquired by last LWD. Sonic data is sent to the Data Center for assistance in pre-processing problems. Lab technicians finalized geotechnical core measurement data and input to the database (J-CORES) and prepared handover documentation while setting up instruments in the core processing and lab street decks.

10.7, 2007
Day: 17

Weather: Overcast
Site: C0001(NT2-03)Hole D (33°14’ N, 136°42’ E)

Science Operations on Deck: Pulled out of the C0001D, memory data load and checked tools. Made pre-processing of data from C0001D, two LWD tools are not responding. Carried out maintenance for drilling equipment and setup LWD assembly for the next site.

Science Operations in Labs: Carrying on monitoring real-time data from the C0001D LWD. Pre-spud meeting for science party. Lab technicians worked on documentation of handover while setting up instruments in the core processing deck.

10.6, 2007
Day: 16

Weather: Cloudy
Site: C0001(NT2-03)Hole D (33°14’ N, 136°42’ E)

Science Operations on Deck: Drilled to the 976 meter below seafloor (mbsf) and decided to pull out at 11:30. Scientific target on this hole was achieved and decided to move next drill site because of the dynamic positioning system problem.

Science Operations in Labs: Carrying on monitoring real-time data from the C0001D LWD. Pre-spud meeting about the next drill site was held for science party. Lab technicians continued training of X-CT operation while setting up instruments in the lab street deck.

10.5, 2007
Day: 15

Weather: Fine but Cloudy
Site: C0001(NT2-03)Hole D (33°14’ N, 136°42’ E)

Science Operations on Deck: Deviation survey was carried out and continued drilling 899 meter below the seafloor (mbsf).

Science Operations in Labs: Carrying on monitoring real-time data from the C0001D LWD. Lab technicians made simulation of the Geochemistry WRC measurements with X-CT while setting up instruments in the core processing and lab street decks.

10.4, 2007
Day: 14

Weather: Fine but Cloudy
Site: C0001(NT2-03)Hole D (33°14’ N, 136°42’ E)

Science Operations on Deck: Continued drilling with LWD. Wiper trip was made. Reamed and RIH (Run In Hole) through tight hole zones and drilled up to 694 mbsf.

Science Operations in Labs: Monitored real-time data from the C0001D LWD. Some breakout meetings of measurement group. Lab technicians set up instruments in the core processing and lab street decks while making operating trainings of X-CT and Titrator.

10.3, 2007
Day: 13

Weather: Fine but Cloudy
Site: C0001(NT2-03)Hole D (33°14’ N, 136°42’ E)

Science Operations on Deck: Continued drilling with slower ROP (Rate of Penetration) with tight hole at almost same depth of Pilot Hole (C0001A).

Science Operations in Labs: Meeting to confirm logging data processing procedure and special seminar on Sonic and Seismic data processing was held. Monitored real-time data from the C0001D LWD. Lab technicians set up instruments in the core processing and lab street decks while making Moisture/Density measurements on GeoTech cores and registering into the database (J-CORES).

10.2, 2007
Day: 12

Weather: Fine but Cloudy
Site: C0001(NT2-03)Hole D (33°14’ N, 136°42’ E)

Science Operations on Deck: Changed rotary drilling to jetting in due to the deviation from the strong current and spud new LWD hole C0001D at 07:30. Drilled up to 347 meter below seafloor while changing sweeping program from time to time at stands and pipe connections.

Science Operations in Labs:Continued Science Seminar 9 covering Alasaka Tectonic studies. Monitored real-time data from the C0001C LWD.
Lab technicians set up instruments in the core processing and lab street decks while making MSCL-W measurements on GeoTech cores.

10.1, 2007
Day: 11

Weather: Cloudy
Site: C0001(NT2-03)Hole C (33°14’ N, 136°42’ E)

Science Operations on Deck: While running into with LWD assembly several instrument needed to fix. Spud the hole C0001C at 19:15. Hole inclination of 6 deg forced to pull out and moved to new location nearby.

Science Operations in Labs:Continued Science Seminar 8 covering Image Analysis and Signal Processing and Active Continental Rifting in Greek studies. Monitored real-time data from the C0001C LWD. Lab technicians set up instruments in the core processing and lab street decks and continued making consumables inventory. IT continued support for science party and for the LWD unit for urgent request.

9.30, 2007
Day: 10

Weather: Overcast
Site: NT2-03 Pilot Hole B (33°14’ N, 136°42’ E)

Science Operations on Deck: 4 cores are taken and recovered at 12:45 on 30 September. LWD is preparing for the next operation.

Science Operations in Labs: Continued Science Seminar 7 covering using log data in subsurface geology and 3-D modeling of fractured reservoir studies. Witnessed coring and measurement process. Lab technicians made X-ray CT regular half-year inspection and supported for the 4 GeoTech coring in the process of cut, curate and measurements.

9.29, 2007
Day: 9

Weather: Overcast
Site: NT2-03 Pilot Hole B (33°14’ N, 136°42’ E)

Science Operations on Deck: Finally running into the water finished at 22:45 on September 29. After tagging sea bed at 2192 meter below seafloor and making rig-up with core barrel, first pilot core was shot and came up on deck on 04:30. Second core ran after reassembled and loaded logging tool and inner barrel. These cores are systematically curate, cut and labeled, and made X-ray CT measurements in 1.5 m whole round cores.

Science Operations in Labs: Continued Science Seminar 6 covering Kumano Basin mud volcanoes and low resistivity sandstones studies. Lab technicians continued working in the lab area instrument setup and documentation.

9.28, 2007
Day: 8

Weather: Fine but Cloudy
Site: NT2-03 Pilot Hole B (33°14’ N, 136°2’ E)

Science Operations on Deck: Set up and repaired several instrument on the drill floor while pulling out of the hole. After slip and cut drill line, made up core barrel BHA (Bottom Hole Assembly). Running into the hole with coring assembly.

Science Operations in Labs: Pilot drilling summary plots and data distribution was made public to science party on pilot hole logging data. Continued Science Seminar 5 covering accretionary prism tectonic compaction and dewatering, and Iberia rifted continental margin studies. Special seminar on LWD tools and their measurements was held by LWD engineers with attendance of operational personnel. First draft of reports was submitted by each group for review and edit. Lab technicians continued working in the lab area for maintenance, instrument setup.

9.27, 2007
Day: 7

Weather: Fine but Cloudy
Site: NT2-03 Pilot Hole A (33°14’ N, 136°42’ E)

Science Operations on Deck: Reached TD 1000 m below seafloor at 12:45. Spot kill drilling fluid, pulled out of the hole, and conducted maintenance check on drilling equipments and derrick.

Science Operations in Labs: Continued Science Seminar 4 covering Thermal and Hydrological Regime and ACORK data from Muroto accretionary prism and Sunda Subduction zone structure and earthquake generation. Safety Management System (SMS) lecture continued to 9 scientists. Brief meeting with LWD engineers was held for confirmation on data acquisition. Lab technicians continued working in the lab area for maintenance, instrument setup, rearrangements and checking lab supplies inventory. Attended oriented tool operations lecture, set up multishot sensor (magnetometer)

9.26, 2007
Day: 6

Weather: Fine
Site: NT2-03 Pilot hole (33°14’ N, 136°42’ E)

Science Operations on Deck: Due to the hole condition change from 498 mbsf, drilling continued with sweep of HiVis drilling fluid at connections, and more circulation and slower ROP (Rate of Penetration).

Science Operations in Labs: Science party started working on logging data analysis with previous ODP log data. Science seminar 3 covering Accretionary Prism modeling, and borehole breakouts and in situ stress studies was presented by 3 scientists. Safety Management System (SMS) lecture began to scientists in 4 person groups. Lab technicians continued working in the lab area for maintenance, instrument setup and rearrangements. In addition, PreSpud meeting on GeoTech Coring was held and finalized the procedure and tasks, then prepared for core handling.

9.25, 2007
Day: 5

Weather: Fine
Site: NT2-03 Pilot hole (33°14’ N, 136°42’ E)

Running into the hole and tag seabed at 2200 meter water depth at 12:00. Confirm the well location in witness of wellsite geologist, OSI, EPM, CCs, and spud in at 12:15. Jet in to the depth of 70 meter below seafloor with control ROP (Rate of Penetration) of 50 m/hr. Encountered hole problems, increase of pressure and torque, and sweep out HiVis drilling fluid two times and spot them before connections. In accordance with hole conditions, changed more circulation and slower ROP.
Science party continues practicing on logging data analysis software, and science seminar 2 with special session of ODP Leg 196- Nankai LWD Review from four scientists in topics of core-log-seismic integration, resistivity data based modeling in fluid flow, and stress analysis from borehole breakouts.
Lab technicians continued working in the lab area for maintenance, instrument setup and rearrangements. Met with CoreTech for Oriented Coring Test procedure, took lecture and training of cascade system, fixed the low water level in the pressure tank, and checked inventory of office supplies.

9.24, 2007
Day: 4

Weather: Cloudy
Site: NT2-03 (33°14’ N, 136°42’ E)

Logging software introduction and practical session of interested scientists was taken in the morning and afternoon. Drilling safety environment lecture tour began by Safety officer in four person groups. Lab technicians continued working in the lab area for maintenance, instrument setup and rearrangements. Test and training of core flow was done successfully.

9.23, 2007
Day: 3

Weather: Cloudy
Site: NT2-03 (33°14’ N, 136°42’ E)

Science seminar #1 began with Greg Moore's (Specialty Coordinator, JAMSTEC) overview on Geology in Nankai Trough from seismic data, and then logging software introduction and practical session of interested scientists. Lab technicians continued working in the lab area for maintenance, instrument setup and rearrangements. Test and training of core flow will be conducted 25 September.

9.22, 2007
Day:2

Weather: Fine
Site: NT2-03 (33°14’ N, 136°42’ E)

Science party began the day with NanTroSEIZE Overview talk from Co-Chief Scientists, and then joined ship's Abandon Ship Drill. Then began discussion on the ‘Methods’ chapter for the IODP Proceedings: Expedition Reports and visited LWD tools area with the guidance of LWD engineer.

9.21, 2007
Day:1

Weather: Fine

Science party took ship's safety induction by safety officers, and rig tour guided by OSI in the morning. 2nd Day of Daily science party meeting covered discussion on routine work flow, grouping and hardware-software support from CDEX. Preparation for the LWD data processing and interpretation hardware was carried for four main groups at difference locations in the lab area. As part of the preparation for the coring expedition, lab technicians working in the lab area for maintenance, instrument setup and rearrangements.