Priority: |
Alternate |
Position: |
8°35.54136′N, 84°4.63062′W |
Water depth (m): |
522 |
Target drilling depth (mbsf): |
1000 (890 m sediment, 110 m basement) |
Approved maximum penetration (mbsf): |
1000 |
Survey coverage: |
Line BGR 99-7 CMP 2500
• Track map (Fig. AF1)
• Seismic profile (Fig. AF4)
• Location map (Fig. F6)
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Objective: |
Alternate for U1380. Characterize upper plate basement and fluid flow. |
Drilling, coring, and downhole measurements program: |
• Hole C: jet-in test for reentry system.
• Hole D: reentry system (20 and 16 inch casing to 260 mbsf).
• Hole D: drill without recovery to 450 mbsf, RCB from 450 to 1000 mbsf.
• Wireline logging (triple combo-UBI, FMS-sonic, VSI).
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Nature of rock anticipated: |
Sediments: mud and silt, mud-supported breccia.
Basement: shaly matrix breccia with carbonate, cherty, and basaltic clasts.
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