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doi:10.2204/iodp.proc.308.105.2006 Summary of operationsHole U1321AThe summary of operations at Site U1321 can be found in Table T1. The JOIDES Resolution was offset from Hole U1319B by 0.6 nmi to Hole U1321A (proposed Site BT4-3A) on a heading of 022° at an average speed of 0.9 kt. The vessel was on station by midnight and a beacon was deployed at 0005 h on 13 June 2005. The driller tagged the seafloor at 1468.0 meters below rig floor (mbrf) (precision depth recorder = 1467.4 mbrf) and observed the spudding at 0205 h via the subsea camera. MWD drilling proceeded without incident to the depth objective of 140.0 mbsf by 0900 h at a controlled rate of penetration (ROP) of 30.0 m/h. The bit was recovered and the MWD drilling package was disassembled, laid down, and secured for the sea voyage to the next site. The vessel departed for Ursa Basin and Site U1322 at 1500 h on 14 June. A complete description of MWD operations in Hole U1321A can be found in “Downhole measurements.” |
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