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Table T1. Operations, Site M0067.

Core Coring method Date (2013) Time (UTC) Depth (mbsf) Recovered (m) Recovery (%) Mud type Comments
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347-M0067A-
    28 Oct 0830           On location
    28 Oct 0845           Bit guide on seabed frame in moonpool; ready to lower frame to seabed
    28 Oct 0852           Seabed frame on seabed
    28 Oct 0909           BHA on string (core barrel + 2 collars)
    28 Oct 0926           PCS in mousehole
1H PCS 28 Oct 0935 0.00 3.30 3.29 99.7 Seawater 50 bar and down to zero
2H PCS 28 Oct 0955 3.30 4.30 0.53 53 Seawater 70 bar, then up to 120 bar, down to 60 bar and stayed there; not full stroke; possible sand
3H PCS 28 Oct 1025 4.30 5.30 0.57 57 Guar  
4H PCS 28 Oct 1050 5.30 6.30 0.05 5 Guar  
5H PCS 28 Oct 1125 6.30 7.30 0.20 20 Guar  
6H PCS 28 Oct 1145 7.30 8.30 0.30 30 Guar  
7H PCS 28 Oct 1210 8.30 9.30 0.30 30 Guar  
    28 Oct 1245 9.30         Attempted to wash down to 12 mbsf to take HS; driller noted change in drilling parameters and stopped at a depth calculated to be 9.3 mbsf; a roughneck was detailed to the rooster box, but before he got halfway he was recalled, as the wind had suddenly picked up to a strong level; (60kt) within a very short time (seconds) the ship then moved, apparently bending the string; driller was able to trip one pipe off the string and sky the remainder to make the string safe; template was brought back on deck and the drill deck made secure
347-M0067B-
    28 Oct 2040           On location; waited on weather and built differential GPS model
    28 Oct 2140           Ran pipe
1H PCS 28 Oct 2205 0.00 3.00 3.44 114.67 Seawater Fired 1 m above calculated seabed from Hole M0067A to gain overlap
2H PCS 28 Oct 2235 3.00 5.00 1.96 98 Seawater  
3O NCA 28 Oct 2330 5.00 9.50 0.00 0 Guar Open hole to level where day shift driller noted a change in parameters before winds increased
4H PCS 28 Oct 2337 9.50 9.70 0.15 75 Guar Sand and gravel
5H PCS 28 Oct 2358 9.70 10.70 2.52 252 Guar Sand with some gravel
6S HS 29 Oct 0020 10.70 10.90 0.10 50 Guar  
                  End of hole
    29 Oct 0040           Tripped pipe
    29 Oct 0105           Seabed frame on deck

HS = hammer sampler, NCA = noncoring assembly, PCS = piston coring system. BHA = bottom-hole assembly.

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