Priority:
|
Alternate for proposed Site NT2-11B:
Chikyu Expedition 319 (riser)
|
Position:
|
33°28.212´N, 136°32.419´E
|
Water depth
(m):
|
2060
|
Target
drilling
depth
(mbsf):
|
1600
|
Approved
maximum
penetration
(mbsf):
|
1600
|
Survey
coverage:
|
Extensive data from 3-D seismic data:
• In-line 2600
• Cross-line 7890
|
Objectives:
|
• Drill and case long-term observatory hole
• Take cuttings and core samples to define
lithology, physical properties, and composition
• Constrain in situ stress and pore pressure
|
Drilling,
coring, and
downhole
measurement
program:
|
Chikyu Expedition 319:
• Pilot hole jet-in (60 mbsf)
• Wireline
• RCB spot coring
• LWD/MWD
• Wireline
• Cuttings analysis
|
Anticipated
lithology:
|
Hemipelagic mud, mudstone, and siltstone/sandstone
|
