Table T1. Summary of all BHAs from Expedition 338 holes.
| Hole | Drilling Type | Water depth (mbsl) |
Total depth (mbsf) |
Bottom-hole assembly |
|---|---|---|---|---|
| 338- | ||||
| C0002F | LWD/MWD | 1939.0 | 2005.5 | 12-1/4 inch bit × GVR × ARC-8 × TeleScope × 12-1/8 inch ILS × sonicVISION × 12-1/8 inch stab × 8-1/2 inch DC(1) × CST × Anderreamer × float sub × 9-1/2 inch DC(2) × 17 inch stab × 9-1/2 inch DC(1) × XO |
| C0002H | RCB | 1936.5 | 1120.5 | 10-5/8 inch RCB core bit × bit sub with 10-5/8 inch stab × RCB core barrel × top sub × head sub × 10-5/8 inch stab × 8-1/2 inch core DC(11) × 8-1/2 inch coring jar × 8-1/2 inch core DC(6) × XO × 5.68 inch HWDP(12) × XO |
| C0002I | RCB | 1936.0 | 1360.3 | 10-5/8 inch RCB core bit × bit sub with 10-5/8 inch stab × RCB core barrel × top sub × head sub × 10-5/8 inch stab × 8-1/2 inch core DC(11) × 8-1/2 inch coring jar × 8-1/2 inch DC(6) × XO × 5.68 HWDP(12) × XO × 5 inch DP S-140(42 stds) × 5-1/2 inch DP S-150 |
| C0002J | RCB | 1937.5 | 940.0 | 10-5/8 inch RCB core bit × bit sub with 10-5/8 inch stab × RCB core barrel × top sub × head sub × 10-5/8 inch coring stab × 8-1/2 inch core DC(11) × XO × 5-1/2 inch DP S-150(12) × XO × 5 inch DP S-140(42 stds) × 5-1/2 inch DP S-150 |
| C0002K | HPCS/EPCS/ESCS | 1937.5 | 286.5 | 11-7/16 inch core bit × bit sub × core barrel × landing sub × top sub × head sub × 8-1/2 inch core DC(11) × XO × 5-1/2 inch DP S-150(3 stds) × XO × 5 inch DP S-140(42 stds) × 5-1/2 inch DP S-150 |
| C0002L | ESCS | 1937.5 | 505.0 | 11-7/16 inch core bit × bit sub × core barrel × landing sub × top sub × head sub × 8-1/2 inch core DC(11) × XO × 5-1/2 inch DP S-150(3 stds) × XO × 5 inch DP S-140(41 stds) × 5-1/2 inch DP S-150 |
| C0012H | LWD/MWD | 3509.5 | 710.0 | 12-1/4 inch bit × GVR × ARC-8 × TeleScope × 12-1/8 inch ILS × sonicVISION × 12-1/8 inch stab × 8-1/2 inch DC(9) × 7-3/4 inch jar × 8-1/2 inch DC(3) × 5.68 HWDP(12) × 5 inch DP S-140(46 stds) × 5-1/2 inch DP S-150 |
| C0018B | LWD/MWD | 3084.5 | 350.0 |
12-1/4 inch bit × GVR-8 with 12-1/8 inch stab (with float valve) × ARC-8 × TeleScope 825HF × NM XO sub × NMDC × 12-1/8 inch stab × 8-1/2 inch DC(9) × 7-3/4 inch LI jar × 8-1/2 inch DC(3) × XO × 5-1/2 inch DP S-150(12) × XO × 5 inch DP S-140(42 stds) × XO × 5-1/2 inch DP S-150 |
| C0021A | LWD/MWD | 2940.5 | 294.0 |
12-1/4 inch bit × GVR-8 with 12-1/8 inch stab (with float valve) × ARC-8 × TeleScope 825HF × NM XO sub × NMDC × 12-1/8 inch stab × 8-1/2 inch DC(9) × 7-3/4 inch LI jar × 8-1/2 inch DC(3) × XO × 5-1/2 inch DP S-150(12) × XO × 5 inch DP S-140(42 stds) × XO × 5-1/2 inch DP S-150 |
| C0021B | HPCS/EPCS | 2940.5 | 194.5 | 11-7/16 inch core bit × bit sub × core barrel × landing sub × top sub × head sub × 8-1/2 inch DC(11) × XO × 5-1/2 inch DP S-150(12) × 5 inch DP S-140(27 stds) × 5-1/2 inch DP S-150 |
| C0022A | LWD/MWD | 2675.5 | 420.5 |
12-1/4 inch bit × GVR-8 with 12-1/8 inch stab (with float valve) × ARC-8 × TeleScope 825HF × NM XO sub × NMDC × 12-1/8 inch stab × 8-1/2 inch DC(9) × 7-3/4 inch LI jar × 8-1/2 inch DC(3) × XO × 5-1/2 inch DP S-150(12) × XO × 5 inch DP S-140(42 stds) × XO × 5-1/2 inch DP S-150 |
| C0022B | HPCS/EPCS/ESCS | 2674.0 | 419.5 | 11-7/16 inch core bit × bit sub × core barrel × landing sub × top sub × head sub × 7 inch DC(15) × XO × 5-1/2 inch DP S-150(12) × 5 inch DP S-140(42 stds) × 5-1/2 inch DP S-150 |
LWD = logging while drilling, MWD = measurement while drilling. RCB = rotary core barrel, HPCS = hydraulic piston coring system, EPCS = extended punch coring system, ESCS = extended shoe coring system. GVR = geoVISION resistivity tool, ILS = instrument landing system, CST = concentric string tool. Stab = stabilizer, XO = crossover. DC = drill collar, NMDC = nonmagnetic drill collar. HWDP = heavy weight drill pipe, DP = drill pipe.
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