Table T1. Operations summary, Site C0004. (See table notes.)
| Hole C0004A |
| Latitude: 33°13.2424′N |
| Longitude: 136°43.3349′E |
| Seafloor (drill pipe measurement from rig floor, m): 2660.5 |
| Distance between rig floor and sea level (m): 28.5 |
| Water depth (drill pipe measurement from sea level, m): 2632 |
| Hole C0004B |
| Latitude: 33°13.2264′N |
| Longitude: 136°43.3461′E |
| Seafloor (drill pipe measurement from rig floor, m): 2665.5 |
| Distance between rig floor and sea level (m): 28.5 |
| Water depth (drill pipe measurement from sea level, m): 2637 |
| Operation | Start | Depth (m LSF) |
Drilled (m LSF) |
Comments | ||
|---|---|---|---|---|---|---|
| Date (2007) |
Local time (h) |
|||||
| Top | Bottom | |||||
| Hole C0004A pilot hole | 0 | 400 | 400 | 8-1/2 inch pilot hole without MWD-LWD | ||
| ROV survey | 31 Oct | 2130 | ||||
| Tag seafloor | 1 Nov | 0430 | ||||
| Spud-in | 1 Nov | 0445 | Jet-in to 78.5 m LSF and rotary drill to TD | |||
| Backream and sweep | 1 Nov | 1100 | Short trip from 2888 to 2736 m DRF | |||
| Reach total depth | 1 Nov | 1845 | Pump sweep and spot kill mud | |||
| Pull tools out of hole | 1 Nov | 1930 | ||||
| Hole C0004B LWD hole | 2 Nov | 1415 | 0 | 400 | 400 | 8-1/2 inch LWD (GVR-sonic-SVWD-MWD-APWD-ADN) |
| ROV survey | 2 Nov | 1600 | ||||
| Tag seafloor | 2 Nov | 1830 | ||||
| Spud-in | ||||||
| Ream and sweep | 3 Nov | 0345 | Wiper trip between 2900 and 2765 m DRF | |||
| Reach total depth | 3 Nov | 1230 | Pull back one stand, relog to TD, pump kill mud | |||
| Pull tools out of hole | 3 Nov | 1530 | ||||
| Recover tools on the rig floor | 3 Nov | 1715 | ||||
| Recover data | 4 Nov | 0000 | Download all data | |||
Notes: LSF = LWD depth below seafloor. MWD = measurement while drilling, LWD = logging while drilling. ROV = remotely operated vehicle. TD = total depth. DRF = drillers depth below rig floor. GVR = geoVISION resistivity tool, sonic = sonic while drilling (sonicVISION), SVWD = seismicVISION while drilling (seismicVISION), APWD = annular pressure while drilling, ADN = Azimuthal Density Neutron tool (adnVISION).
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