Table T2. Revised summary of operations for Expedition 321.
Site |
Location (latitude, longitude) |
Seafloor depth (mbrf) |
Operations description |
Duration (days) |
|||
|---|---|---|---|---|---|---|---|
Task |
Transit |
Drilling/ Coring |
Logging |
||||
|
Honolulu, Hawaii |
|
|
|
|
|
||
| Transit ~1908 nmi to Site PEAT-5C at 10.5 kt |
|
7.6 |
|
|
|||
|
PEAT-5C EPSP approved to 300 mbsf |
07°42.075´N, 128°15.254´W |
4322 |
Hole A: APC ~70 m/XCB to ~254 mbsf (~1 m into basement) - 3 APCT3 and 2 DVTP temperature measurements - Wireline logging with triple combo and FMS-sonic (16.6 h) |
|
|
2.8 | 0.9 |
| Hole B: APC ~70 m/XCB to ~254 mbsf |
|
|
1.9 |
|
|||
| Hole C: APC ~70 m/XCB to ~254 mbsf |
|
|
2.3 |
|
|||
|
Subtotal days on site: |
7.9 |
|
|
|
|||
| Transit ~380 nmi to Site PEAT-7C at 10.5 kt |
|
1.5 |
|
|
|||
|
PEAT-7C EPSP approved to 480 mbsf |
03°50.009´N, 123°12.352´W |
4502 |
Hole A: APC ~70 m/XCB to ~453 mbsf (~1 m into basement) - 3 APCT3 and 2 DVTP temperature measurements - Wireline logging with triple combo and FMS-sonic (19.9 h) |
|
|
4.3 | 1.1 |
| Hole B: APC ~70 m/XCB to ~452 mbsf |
|
|
3.6 |
|
|||
| Hole C: APC ~70 m/XCB to ~452 mbsf |
|
|
4.0 |
|
|||
|
Subtotal days on site: |
13.0 |
|
|
|
|||
| Transit ~321 nmi to Site PEAT-8C at 10.5 kt |
|
1.3 |
|
|
|||
|
PEAT-8C EPSP approved to 480 mbsf |
02°36.327´N, 117°59.412´W |
4341
|
Hole A: APC ~70 m/XCB to ~447 mbsf (~1 m into basement) - 3 APCT3 and 2 DVTP temperature measurements - Wireline logging with triple combo and FMS-sonic (19.7 h) |
|
|
4.2 | 1.6 |
|
Subtotal days on site: |
5.8 |
|
|
|
|||
| Transit ~1811 nmi to San Diego, California, at 10.5 kt |
|
7.2 |
|
|
|||
|
San Diego, California |
|
|
17.6 | 23.1 | 3.6 | ||
Subtotal time on site: |
26.7 |
||||||
Total operating days: |
44.3 |
||||||
Total expedition (including 4 port call days): |
48.3 |
||||||
Notes: Seafloor depth = prospectus water depth plus 11.0 m adjustment from water line to rig floor (i.e., drillers depth). Honolulu port call is assumed to be only 4.0 days. Expedition is expected to end on the morning of 23 June 2009 (49.0 operating days). Site PEAT-8C is only planned as a single hole with logging. Time permitting, additional holes could be drilled. Logging times include hole preparation, rig-up/down, etc. Actual wireline times are shown in parentheses. APC = advanced piston corer, XCB = extended core barrel, APCT = third-generation advanced piston corer temperature tool, DVTP = Davis-Villinger Temperature Probe, triple combo = triple combination tool string, FMS-sonic = Formation MicroScanner-sonic tool string.
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