Table T1. Revised summary of operations for Expedition 320.
Site |
Location (latitude, longitude) |
Seafloor depth (mbrf) |
Operations description |
Duration (days) |
|||
|---|---|---|---|---|---|---|---|
Task |
Transit |
Drilling/ Coring |
Logging |
||||
|
Honolulu, Hawaii |
|
|
|
|
|
||
| Transit ~1068 nmi from Honolulu to Site PEAT-1C at 10.5 kt |
|
4.2 |
|
|
|||
|
PEAT-1C EPSP approved to 250 mbsf |
12°04.089就, 142°09.698幃 |
5143 |
Hole A: APC ~70 m/XCB to ~188 mbsf (~1 m into basement) - 3 APCT3 and 2 DVTP temperature measurements - Wireline logging with triple combo and FMS-sonic (16.9 h) |
|
|
2.5 | 0.9 |
| Hole B: APC ~70 m/XCB to ~187 mbsf |
|
|
1.6 |
|
|||
| Hole C: APC ~70 m/XCB to ~187 mbsf |
|
|
2.0 |
|
|||
|
Subtotal days on site: |
7.0 |
||||||
| Transit ~66 nmi to Site PEAT-2C at 10.5 kt |
|
0.3 |
|
|
|||
|
PEAT-2C EPSP approved to 250 mbsf |
11°54.711就, 141°02.744幃 |
4952 |
Hole A: APC ~70 m/XCB to ~163 mbsf (~1 m into basement) - 3 APCT3 and 2 DVTP temperature measurements - Wireline logging with triple combo and FMS-sonic (16.9 h) |
|
|
2.0 | 0.9 |
| Hole B: APC ~70 m/XCB to ~162 mbsf |
|
|
1.3 |
|
|||
| Hole C: APC ~70 m/XCB to ~162 mbsf |
|
|
1.8 |
|
|||
|
Subtotal days on site: |
6.0 |
||||||
| Transit ~176 nmi to Site PEAT-3C at 10.5 kt |
|
0.7 |
|
|
|||
|
PEAT-3C EPSP approved to 250 mbsf |
10°30.997就, 138°25.175幃 |
4885 |
Hole A: APC ~70 m/XCB to ~175 mbsf (~1 m into basement) - 3 APCT3 and 2 DVTP temperature measurements - Wireline logging with triple combo and FMS-sonic (17.3 h) |
|
|
2.1 | 1.0 |
| Hole B: APC ~70 m/XCB to ~174 mbsf |
|
|
1.4 |
|
|||
| Hole C: APC ~70 m/XCB to ~174 mbsf |
|
|
1.8 |
|
|||
|
Subtotal days on site: |
6.3 |
||||||
| Transit ~411 nmi to Site PEAT-4C at 10.5 kt |
|
1.6 |
|
|
|||
|
PEAT-4C EPSP approved to 300 mbsf |
07°59.999就, 131°58.396幃 |
4820 |
Hole A: APC ~70 m/XCB to ~269 mbsf (~1 m into basement) - 3 APCT3 and 2 DVTP temperature measurements - Wireline logging with triple combo and FMS-sonic (17.6 h) - Optional: wireline logging with VSI (12.0 h; not included) |
|
|
2.9 | 1.0 |
| Hole B: APC ~70 m/XCB to ~268 mbsf |
|
|
2.2 |
|
|||
| Hole C: APC ~70 m/XCB to ~268 mbsf |
|
|
2.6 |
|
|||
|
Subtotal days on site: |
8.7 |
||||||
| Transit ~376 nmi to Site PEAT-6C at 10.5 kt |
|
1.5 |
|
|
|||
|
PEAT-6C EPSP approved to 400 mbsf |
05°18.736就, 126°16.997幃 |
4362 |
Hole A: APC ~70 m/XCB to ~363 mbsf (~1 m into basement) - 3 APCT3 and 2 DVTP temperature measurements - Wireline logging with triple combo and FMS-sonic (24.0 h) - VSP with VSI |
|
|
3.5 | 1.8 |
| Hole B: APC ~70 m/XCB to ~362 mbsf |
|
|
2.8 |
|
|||
| Hole C: APC ~70 m/XCB to ~362 mbsf |
|
|
3.3 |
|
|||
|
Subtotal days on site: |
11.4 |
||||||
| Transit ~2081 nmi to Honolulu, Hawaii, at 10.5 kt |
|
8.3 |
|
|
|||
|
Honolulu, Hawaii |
|
|
16.6 | 33.8 | 5.6 | ||
Subtotal time on site: |
39.4 |
||||||
Total operating days: |
56.0 |
||||||
Total expedition (including 5 port call days): |
61.0 |
||||||
Notes: Seafloor depth = prospectus water depth plus 11.0 m adjustment from water line to rig floor (i.e., drillers depth). Logging times include hole preparation, rig-up/down, etc. Actual wireline times are shown in parentheses. APC = advanced piston corer, XCB = extended core barrel, APCT3 = third-generation advanced piston corer temperature tool, DVTP = Davis-Villinger Temperature Probe, triple combo = triple combination, FMS-sonic = Formation MicroScanner-sonic tool string.
Close | Next | Top of page