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Table T1. Operations summary, Site C0010.

Hole C0010A
Latitude: 33°12.5981′N
Longitude: 136°41.1924′E
Water depth (m): 2523.7
Seafloor (m): 2552 DRF (2523.7 mbsl)
20 conductor pipe shoe (m): 2593 DRF (41 mbsf)
9-5/8 casing screen interval (m): 2939–2961 DRF (387–409 mbsf)
9-5/8 casing shoe (m): 3096 DRF (518 mbsf)
TD (m): 3107 DRF (555 mbsf)
Operation Start Depth DSF (m) Comments
Date
(2010)
Local time
(h)
Top Bottom
Hole C0010A     0 560  
Prep tool, rig up, and RIH 1 Nov 2215     Make up 5.5 inch DP and 5 inch DP stands
Run ROV survey 2 Nov 0145     Prepare and launch ROV for diving and transponder setting
Recover ROV 2 Nov 0545     ROV camera fault, recovered to troubleshoot and repair
Relaunch ROV 2 Nov 1400     Relaunch ROV with 3 transponders, deploy transponders
Remove corrosion cap from well 2 Nov 1945     Remove corrosion cap and place on seabed
Recover ROV 2 Nov 2045     Recover ROV from seafloor
Calibrate DP 2 Nov 2300     Set and calibrate DP
Move to LCA 3 Nov 0300     Move Chikyu to LCA
Set DP mode 3 Nov 1130      
RIH casing packer retrieving assembly 3 Nov 1230     1445 h attach accelerometer to DP
Begin attaching anti-VIV ropes 3 Nov 1730     Continue to RIH packer running tool from 1200 to 1400 m DRF
Continue to RIH 4 Nov 0445     Attached Accelerometer 2 to DP at 1600 m DRF
Drift to Site C0010 4 Nov 1045     Observing drill pipe for VIV while drifting
Resume running packer running tool 5 Nov 0030     Running DP while attaching anti-VIV ropes
Launch ROV 5 Nov 0215     ROV launched 2 nmi from site
Reenter wellhead 5 Nov 1215     Running tool run into well
Lower string to casing packer 5 Nov 1730     Tag and touch down on casing packer
POOH from 2890 to 2734 m DRF 5 Nov 2000     Pull up and retrieve packer assembly
POOH running tool and SmartPlug 6 Nov 0230     Packer and SmartPlug visually confirmed by ROV camera
Drift while recovering 6 Nov 0235     Drifting with current as packer assembly is recovered
Recover ROV 6 Nov 1030     ROV brought back on deck
Recover Accelerometer 1 7 Nov 0820      
Recover Accelerometer 2 7 Nov 1250      
Recover and lay out packer and SmartPlug 7 Nov 1415     Casing packer and SmartPlug recovered and laid out on deck
Prepare casing scraper assembly 7 Nov 1430     Casing scraper assembly readied and racked
RIH casing scraper assembly 7 Nov 2300     Casing scraper run to 480 m DRF
Pull out to 1000 m DRF 8 Nov 0215     High current dictated POOH and LCA movement
Resume casing scraper run 8 Nov 0700     Resume RIH to 2283 m DRF with drifting
Launch ROV 8 Nov 1030      
Continue to RIH scraping assembly 8 Nov 1130     Continue to RIH casing scraper to 2543 m DRF
Recover ROV 8 Nov 1215     Camera cable loose, needing troubleshooting
Stop Chikyu drifting and dive ROV 8 Nov 2200      
RIH casing scraper assembly 8 Nov 2330     RIH to 2400 m DRF
RIH casing scraper assembly into wellhead 9 Nov 0115     RIH to 2933 m DRF, 2 scraper runs
Circulate bottoms up 9 Nov 0115      
POOH wellhead 9 Nov 0145     Clear wellhead and begin drifting
Recover ROV 9 Nov 0400     Leave corrosion cap on seafloor
Move to LCA 9 Nov 1030     Pick up and rack stands
Start drifting 9 Nov 1745      
Pick up casing packer and GeniusPlug 9 Nov 1915     2 joints of tubing bent while lying down, bent back
RIH casing packer assembly 9 Nov 2015     RIH to 1550 m DRF
Dive ROV 11 Nov 0800     Dive ROV and check BHA
Resume running packer running tool 11 Nov 0815     Running casing packer from 2400 to 2536 m DRF
Shift Chikyu to reenter Hole C0010A 11 Nov 1030      
Reenter wellhead with GeniusPlug 11 Nov 1100     RIH casing packer and GeniusPlug past wellhead
Run casing packer to setting depth 11 Nov 1545     Casing packer run to 2938 m DRF
Set A3 packer at 2950 m DRF 11 Nov 1710     Casing packer set at 373 mbsf, bottom of GeniusPlug at 395 mbsf
Displace hole with suspension fluid 11 Nov 1715     Place 20 kL of suspension fluid
POOH to 2550 m DRF 11 Nov 2400     Confirm L10 running tool on BHA
Use ROV to pick up corrosion cap 12 Nov 0015     ROV on deck at 0200 h with corrosion cap
Resume POOH to surface with drifting 12 Nov 1045      
Dive ROV to set corrosion cap 12 Nov 1500     Corrosion cap set at 1600 h
Use ROV to recover transponders 12 Nov 2330     All 4 transponders recovered
Retrieve ROV on deck 12 Nov 2330      
Begin transit to Site C0002 12 Nov 2330     Arrived at Site C0002 at 2400 h

DRF = drilling depth below rig floor, mbsl = meters below sea level, mbsf = meters below seafloor, DSF = drilling depth below seafloor. TD = total depth. DP = dynamic positioning. RIH = run in hole, POOH = pull out of hole. ROV = remotely operated vehicle. LCA = low-current area, VIV = vortex-induced vibration. BHA = bottom-hole assembly.

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