Table T1. Operations summary, Site 1173.
 
Hole 1173B









Latitude: 32°14.6831´N









Longitude: 135°01.4845´E









Seafloor (drill pipe measurement from rig floor, mbrf): 4801.9







Distance between rig floor and sea level (m): 10.8







Water depth (drill pipe measurement from sea level, m): 4791.1







Hole 1173C









Latitude: 32°14.6978´N









Longitude: 135°01.4612´E









Seafloor (drill pipe measurement from rig floor, mbrf): 4801.9







Distance between rig floor and sea level (m): 10.8







Water depth (drill pipe measurement from sea level, m): 4791.1







Operation
Start
End
Depth (mbsf)
Drilled
(mbsf)
Time on hole
Comments
 
 Date
(2001)
Time
(local)
Date
(2001)
Time
(local)
Top
Bottom
 
Hours
Days
 
196-1173B:









Install reentry cone and 20-in casing 10 May 0224 13 May 2315 0 124.2 124.2 88.5 3.69 20-in casing shoe at 120.6 mbsf; includes 43 hr due to reentry cone loss.
LWD 13 May 2315 17 May 2135 124.2 737.1 612.9 94.3 3.93 Includes 24 hr spent evading tropical storm.
Open 9 -in LWD hole to 17 in for ACORK 23 May 1910 2 Jun 0230 124.2 735.1 610.9 79.3 3.31 17-in hole extends to 732.1 mbsf.
Assemble and drill in ACORK 2 Jun 0230 10 Jun 0445 194.2 8.09 ACORK extends from 0 to 727.10 mbsf; includes 58-hr DP transit back to site.
RCB core below ACORK: Open basement hydrologic system to deepest monitoring zone 10 Jun 0445 12 Jun 1615 737.1 756.6 19.5 59.5 2.48 Three cores; 19.5 m cored; 5.19 m recovered (27%).
Install bridge plug inside ACORK 12 Jun 1615 14 Jun 0000 31.7 1.32 Bridge plug set at 466 mbsf; drill pipe broke off at ACORK head.
Conduct camera survey of ACORK 29 Jun 0400 29 Jun 2215 18.3 0.76





Totals for Hole 1173B: 1367.5 565.8 23.58
196-1173C:









LWD 17 May 2135 18 May 1655 0 175.0 175.0 19.4 0.81





Totals for Hole 1173C: 175.0 19.4 0.81





Totals for Site 1173: 1542.5 585.2 24.39

Notes: LWD = logging while drilling, ACORK = Advanced CORK, RCB = rotary core barrel. DP = dynamic positioning. — = not applicable.