IODP

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doi:10.2204/iodp.sp.308.2005

SITE SUMMARIES (CONTINUED)

Site: URS-3C
Priority:
 		Primary
Position:
 		28.09937740°N, 89.02520153°W
Water depth (m):
 		1321
Target drilling depth (mbsf):
 		238
Approved maximum penetration (mbsf):
 		238
Survey coverage:
  • Morgus HR line 150
  • Morgus HR trace 2928
    • Objectives:
         		Hydrodynamic analysis of a passive margin. Ursa sites will test the flow focusing model by drilling to 238 mbsf (20 m above the predicted top of the Blue Unit) in an overpressured region where overburden is thick (URS-1B) and where it is thinner (URS-2C, URS-3C).
    Drilling program:
         		APC to refusal with drillover and XCB
    Wireline logging program:
         		None
    MLWD program:
         		GVR, ADN, APWD
    Nature of rock anticipated:
         		Hemipelagic mudstone

    Site: URS-4A
    Priority:
         		Secondary
    Position:
         		28.10025610°N, 89.02008217°W
    Water depth (m):
         		1325
    Target drilling depth (mbsf):
         		237
    Approved maximum penetration (mbsf):
         		237
    Survey coverage:
  • Morgus HR line 150
  • Morgus HR trace 3010
    • Objectives:
         		Hydrodynamic analysis of a passive margin. Ursa Sites will test the flow focusing model by drilling to 237 mbsf (20 m above the predicted top of the Blue Unit) in an overpressured region where overburden is thick (URS-1B) and where it is thinner (URS-2C, URS-3C, URS-4A).
    Drilling program:
         		APC to refusal with drillover and XCB
    Wireline logging program:
         		None
    MWD program:
         		GVR, ADN, APWD
    Nature of rock anticipated:
         		Hemipelagic mudstone

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