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Table T2. Bottom-hole assembly, Hole C0004B. (See table notes.)

BHA component Length
(m)
Cumulative
length
from bit
(m)
PDC bit 0.350 0.350
Stabilizer/float sub 1.500 1.850
Crossover sub 0.615 2.465
geoVISION 3.084 5.549
sonicVISION 7.624 13.173
Power pulse 8.496 21.669
seismicVISION 4.640 26.309
adnVISION 6.098 32.407
Crossover sub 0.610 33.017
6-3/4 inch drilling collar 9.310 42.327
6-3/4 inch drilling collar 9.313 51.640
6-3/4 inch drilling collar 9.310 60.950
6-3/4 inch drilling collar 9.292 70.242
6-3/4 inch drilling collar 9.312 79.554
6-3/4 inch drilling collar 9.314 88.868
6-3/4 inch drilling collar 9.310 98.178
6-3/4 inch drilling collar 9.316 107.494
Jar 10.215 117.709
6-3/4 inch drilling collar 9.310 127.019
Crossover sub 0.611 127.630
Crossover sub 0.605 128.235
Heavy pipe 37.856 166.091
Heavy pipe 37.876 203.967
Heavy pipe 37.884 241.851
Heavy pipe 37.846 279.697
Crossover sub 0.910 280.607

Notes: BHA = bottom-hole assembly. PDC = polycrystalline diamond compact.

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