Table
T7. Hammer drill drilling test data, Hole 1104D.
Time
(UTC)
|
Flow rate
(gpm)
|
Pressure
(psi)
|
Weight
on bit
(lb)
|
Notes
|
0450
|
200
|
560
|
8,000
|
|
|
250
|
930
|
8,000
|
Heave off
bottom
|
|
350
|
1,620
|
8,000
|
|
|
350
|
1,590
|
8,000
|
|
|
350
|
1,565
|
10,000
|
Torque
erratic and increasing
|
0505
|
350
|
1,589
|
10,000
|
Top drive
stalling
|
0510
|
|
|
|
Deploy
camera to observe bit and borehole, may have started
several new holes
|
0545
|
|
|
|
End Hole
1104D drilling test, recover camera, recover hammer
|
Notes:
Water depth = 739 mbrf; bit = Holte concentric.