Time
(UTC)
|
Flow rate
(gpm)
|
Pressure
(psi)
|
Weight
on bit
(lb)
|
Rotary
speed
(rpm)
|
Torque
(ft-lb)
|
Notes
|
0830
|
100
|
170
|
10,000
|
20
|
1,000
|
Hammer
running smoothly |
|
150
|
400
|
10,000
|
20
|
1,500
|
|
|
200
|
625
|
10,000
|
20
|
1,500
|
|
|
250
|
925
|
10,000
|
20
|
1,500
|
|
|
300
|
1,300
|
10,000
|
20
|
2,500
|
Excessive
vibration from pumps |
|
350
|
1,650
|
10,000
|
20
|
2,500
|
Top drive
stalled, torque erratic up to 8,000 ft-lb |
0845
|
350
|
1,650
|
10,000
|
20
|
4,000
|
Hammer
running smoother, torque less erratic, making hole |
0845
|
125
|
200
|
|
20
|
|
Pop-off
valve on rig air failed, lost rig air, stopped drilling,
stayed in hole, bit sticking |
0904
|
|
|
|
|
|
Rig air
pop-off valve isolated, drilling resumed |
|
350
|
1,575
|
10,000
|
20
|
4,000
|
Continuous
drill off, lose all pressure, heave closes hammer by-pass
and dumps max flow to hammer piston/valve |
|
375
|
1,780
|
10,000
|
20
|
8,000
|
Torque
erratic, slip stick rpm 0-50 |
|
400
|
1,950
|
10,000
|
20
|
8,000
|
Top drive
stalling, slip stick, adjust heave compensator and WOB,
pipe occasionally ringing, releasing torque upon stall
hammer usually starts at 6,500 ft-lb |
1130
|
375
|
680
|
10,000
|
20
|
0
|
Hammer not
cycling, bit stuck, 3 m in hole |
1150
|
|
|
|
|
|
Bit freed,
camera tripped to the seafloor observe Holes 1104A and
1104B. Both holes appear clean and smooth. Hole 1104B
appears oblong as if spudded on a slope. Offset 20 ft
south, set bit on seafloor, maintain WOB and recover
camera |
