Table T2. Operations conducted during Leg 206.
Hole
Activity
Local time (hr)
Date (2002)
Operation
Time
on hole (hr)
Time
on site (hr)
Time on site
(days)
Comments
1256A On location with GPS 1630 Nov 14



Spud at 0640 hr on 15 Nov

Clear seafloor 1256A 0645 Nov 15
14.25 14.25 0.59 Objective attained
1256B Clear seafloor 1256A 0645 Nov 15



Spud at 0815 hr on 15 Nov

Bit at rotary table 0630 Nov 17
47.75 62.00 2.58 Basement reached
1256C Bit at rotary table 0630 Nov 17



Spud at 1515 hr on 17 Nov

EOP at rotary table 0345 Nov 23
141.25 203.25 8.47 Depth objective attained
1256D EOP at rotary table 0345 Nov 23 Jet-in 20-in casing


Spud reentry cone and casing


1035 Nov 24 End jetting 30.83 234.08 9.75 Reach 95 mbsf; release CADA


2015 Nov 24 Bit at rotary table 9.67 243.75 10.16 Change to BCR BHA


0620 Nov 25 Reentry 1 10.08 253.83 10.58 Enter cone with BCR BHA


0815 Nov 25 Begin drilling 1.92 255.75 10.66 Start 21.5-in hole at 95 mbsf


0445 Nov 27 End drilling 44.50 300.25 12.51 Stop at ~17 m into basement


1300 Nov 27 Bit at rotary table 8.25 308.50 12.85 Failed bit bearing put junk in hole


2140 Nov 27 Reentry 2 8.67 317.17 13.22 Reenter with 2x junk basket BHA


0000 Nov 28 Start cleaning 2.33 319.50 13.31 Work junk baskets


0330 Nov 28 End cleaning 3.50 323.00 13.46 Advance 1 m into basement


0505 Nov 28 Clear seafloor 1.58 324.58 13.52 Recover drill string


1140 Nov 28 Bit at rotary table 6.58 331.17 13.80 Change to BCR BHA


1755 Nov 28 Reentry 3 6.25 337.42 14.06 Enter cone with BCR BHA


2000 Nov 28 Begin drilling 2.08 339.50 14.15 Resume 21.5-in hole at ~17 m in basement


0030 Nov 30 Begin wiper trip 28.50 368.00 15.33 TD = 276.1 mbsf (26.1 m in basement)


0415 Nov 30 Displace hole 3.75 371.75 15.49 150 bbl sepiolite; 100 bbl barite


0700 Nov 30 Clear seafloor 2.75 374.50 15.60 Recover drill string


1330 Nov 30 Bit at rotary table 6.50 381.00 15.88 Rig-up for 16-in casing


0417 Dec 1 Casing wet at 0417 hr 14.78 395.78 16.49 End making up casing


1040 Dec 1 Detect crushed joint 6.38 402.17 16.76 Stop running casing


0004 Dec 2 Recover casing 13.40 415.57 17.32 Replace four joints and casing collar


1135 Dec 2 Casing wet at 1135 hr 11.52 427.08 17.80 End repair of casing string


2008 Dec 2 Reentry 4 8.55 435.63 18.15 Weather getting bad; heave = ~2.5 m


2315 Dec 2 Clear seafloor 3.12 438.75 18.28 POOH due to heave = ~4 m


0650 Dec 3 Reentry 5 7.58 446.33 18.60 WOW for 5.75 hr


1730 Dec 3 Land casing 10.67 457.00 19.04 Work stuck casing for 3.75 hr


1745 Dec 3 Cement casing 0.25 457.25 19.05 30 bbl cement


2115 Dec 3 Clear seafloor 3.50 460.75 19.20 Release CADA running tool


0500 Dec 4 CADA tool on surface 7.75 468.50 19.52 Detorque CADA tool


0630 Dec 4 Begin to run in hole 1.50 470.00 19.58 Make up bit 1: CC4 SN BX-020


1500 Dec 4 Reentry 6 8.50 478.50 19.94 Quick reentry


1815 Dec 4 Start to drill cement 3.25 481.75 20.07 Attempted core/dropped chisel


0955 Dec 5 Clear seafloor 15.67 497.42 20.73 Tested bottom of hole and found junk


1615 Dec 5 Bit at rotary table 6.33 503.75 20.99 Change to Bowen fishing magnet


2358 Dec 5 Reentry 7 7.72 511.47 21.31 Quick reentry


0230 Dec 6 Start fishing 2.53 514.00 21.42 Work junk baskets and magnet 1 hr


0440 Dec 6 Clear seafloor 2.17 516.17 21.51 Quick reentry


1130 Dec 6 Bit at rotary table 6.83 523.00 21.79 Clean magnet; Bit 2: CC-7 SN BP-723


2130 Dec 6 Reentry 8 10.00 533.00 22.21 1-hr search for cone


0045 Dec 7 Work junk basket 3.25 536.25 22.34 Work junk basket before coring


0100 Dec 7 Begin coring bit 2 0.25 536.50 22.35 Clean hole!


0900 Dec 10 End coring 80.00 616.50 25.69 Hr = 49.58; cored = 129.9 m (158.0 m in basement)


1203 Dec 10 Work stuck pipe 3.05 619.55 25.81 Stuck when sinker bars pulled


1435 Dec 10 Clear seafloor 2.53 622.08 25.92


2040 Dec 10 Bit at rotary table 6.08 628.17 26.17 Bit 3: CC-7 SN BP-737


0410 Dec 11 Reentry 9 7.50 635.67 26.49


0845 Dec 11 Begin coring bit 3 4.58 640.25 26.68


2145 Dec 14 End coring 85.00 725.25 30.22 Hr = 62.9; cored = 88.0 m (244.0 m in basement)


2340 Dec 14 Clear seafloor 1.92 727.17 30.30


0655 Dec 15 Bit at rotary table 7.25 734.42 30.60 Bit 4: CC-9 SN BF-857, no junk basket


1435 Dec 15 Reentry 10 7.67 742.08 30.92 Quick reentry


1800 Dec 15 Begin coring bit 4 3.42 745.50 31.06


2200 Dec 18 End coring 76.00 821.50 34.23 Hr = 57.8; cored = 77.0 m (321.0 m in basement)


2355 Dec 18 Clear seafloor 1.92 823.42 34.31


0740 Dec 19 Bit at rotary table 7.75 831.17 34.63


1550 Dec 19 Reentry 11 8.17 839.33 34.97 Bit 5: CC-9 SN BF-738


1915 Dec 19 Begin coring bit 5 3.42 842.75 35.11 3 m soft fill


2000 Dec 22 End coring 72.75 915.50 38.15 Hr = 59.4; cored = 84.0 m (405.0 m basement)


0010 Dec 23 Clear seafloor 4.17 919.67 38.32


0625 Dec 23 Bit at rotary table 6.25 925.92 38.58 Bit 6: CC-9 SN BF-740


1540 Dec 23 Reentry 12 9.25 935.17 38.97 1 hr dt piperacker


1845 Dec 23 Begin coring Bit 6 3.08 938.25 39.09


1145 Dec 27 End coring 89.00 1027.25 42.80 Hr = 64.9; cored = 97.0 m (502.0 m basement)


1515 Dec 27 Clear seafloor 3.50 1030.75 42.95


2300 Dec 27 Bit at rotary table 7.75 1038.50 43.27


0622 Dec 28 Reentry 13 7.37 1045.87 43.58 Enter cone with logging BHA


0915 Dec 28 Rig-up for logging 2.88 1048.75 43.70 Recover VIT camera


1000 Dec 28 Rig-up first log 0.75 1049.50 43.73


1930 Dec 30 End logging 57.50 1107.00 46.13 BGR magnetometer (BGRM) did not work; two runs


2030 Dec 30 Rig-down from logging 1.00 1108.00 46.17 Triple combo, FMS, BGRM, UBI, WST


2100 Dec 30 Clear seafloor 0.50 1108.50 46.19


0325 Dec 31 Bit at rotary table 6.42 1114.92 46.45


0330 Dec 31 Underway to Balboa 0.08 1115.00 46.46 Beacon recovered after 45 days

Notes: GPS = Global Positioning System. CADA = Cam-Actuated Drill-Ahead tool. EOP = end of pipe. BCR = bi-centered reamer. BHA = bottom-hole assembly. TD = total depth. POOH = pull out of hole. WOW = waiting on weather. VIT = vibration-isolated television. FMS = Formation MicroScanner, UBI = Ultrasonic Borehole Imager, WST = Well Seismic Tool. This table is also available in ASCII.