| Location |
|
Time |
|
| Latitude |
Longitude |
Territorial
jurisdiction |
|
Start hole |
Spud hole |
End hole |
Total |
|
| 32°43.3928'S
|
57°15.9606'E |
International |
|
1345
24 Oct 97 |
N/A
N/A |
1900
1 Dec 97 |
917.3 hr
38.2 days |
|
|
|
|
|
|
|
|
|
|
| Drill
pipe depths |
|
|
|
|
|
Water
depth (mbsl) |
Seafloor
depth (mbrf) |
Penetration
depth (mbsf) |
Total
depth (mbrf) |
|
|
|
|
|
| 720.6 |
731.0 |
1508.0/606.01 |
2239.0/1337.01 |
|
|
|
|
|
| Bit
data |
|
Bit size |
Make |
Model no. |
Jets |
Serial no. |
Cumulative
time (hr) |
Cumulative
depth (m) |
|
|
|
|
|
|
|
|
|
|
| Core Bit 1 |
97/8
|
RBI |
C-7 |
4x16 |
BM109 |
25.9 |
51.5 |
|
| Core Bit 2 |
97/8
|
RBI |
C-7 |
4x16 |
BM111 |
36.0 |
86.4 |
|
| Core Bit 3 |
97/8
|
RBI |
C-7 |
4x16 |
BM114 |
43.8 |
109.4 |
|
| Core Bit 4 |
97/8
|
RBI |
C-7 |
4x16 |
BM113 |
46.8 |
137.2 |
|
| Core Bit 5 |
97/8
|
RBI |
C-7 |
4x16 |
BM115 |
47.3 |
98.2 |
|
| Core Bit 6 |
97/8
|
RBI |
C-7 |
4x16 |
BM110 |
45.9 |
111.9 |
|
| Core Bit 7 |
97/8
|
RBI |
C-7 |
4x16 |
BM108 |
33.3 |
91.7 |
|
| Core Bit 8 |
97/8
|
RBI |
C-7 |
4x16 |
BM107 |
53.8 |
169.5 |
|
| Core Bit 9 |
97/8
|
RBI |
C-7 |
4x16 |
BM106 |
8.8 |
25.8 |
|
| Core Bit 10 |
97/8
|
RBI |
C-7 |
4x16 |
BM112 |
33.9 |
121.6 |
|
|
|
|
|
|
|
|
|
|
| Beacon
data |
|
|
Model |
Serial no. |
Frequency |
Power |
Deployed |
Recovered |
Total time
(hr) |
|
|
|
|
|
|
|
|
|
| Primary #1 |
Datasonics |
354M |
2025 |
16.0 kHz |
208 dB |
1825/24 Oct 97 |
1730/1 Dec 97 |
911.3 |
| Backup #2 |
Datasonics |
354M |
2040 |
14.0 kHz |
205 dB |
1345/24 Oct 97 |
1645/1 Dec 97 |
915.0 |
|
|
|
|
|
|
|
|
|
| Bottom-hole
assembly (BHA) |
|
|
|
|
|
|
|
|
|
Coring: bit, bit sub, outer core barrel, top
sub, head sub, 10 each 8¼-in drill collars, tapered drill collar, two stands of 5½-in
drill pipe, cross-over Fishing: overshot with bit sub as required,
10-ft 8¼-in drill collar pup, 2-8 each 8¼-in drill collars, tapered drill collar, two
stands of 5½-in drill pipe, cross-over Logging: reentry clean out
bit, two each 8¼-in drill collars, landing/saver sub with modified landing ring for VSP,
tapered drill collar, two stands of 5½ in drill pipe, cross-over
(Note: A total of three sets of drilling jars were used [placed in BHA with two collars
above] until the units developed cracks and were taken out of service.) |
|
|
|
|
|
|
|
|
|
| Downhole
tools/measurements (Orientation, temperature, water sampler, etc.) |
|
|
|
|
|
|
|
|
|
| Phase
I of logging was conducted to 492 mbsf prior to coring. The BHA was placed at 49 mbsf and
three tool strings were deployed: (1) natural gamma (NGS), accelerator porosity (APS),
hostile environment lithodensity (HLDS), dual laterolog (DLL) and temperature tool; (2)
NGS, dipole shear sonic imager (DSI) and Formation MicroScanner (FMS). This run was
aborted due to data acquisition difficulties; (3) NGT, general purpose inclinometry tool
(GPIT), and DLL. After drill pipe failure, Phase II logging went to 595 mbsf. This
consisted of four tool string deployments with the following tools: (1) HLDT, caliper,
APS, and HNGS; (2) NGT, DSI, GPIT, and FMS (same problem as before with FMS data); (3)
NGT, GPIT, and DLL; (4) Schlumberger VSP-ASI. |
|
|
|
|
|
|
|
|
|
| Drilling/coring
statistics |
| Coring system |
Bit number |
Number of
cores |
Depth cored
(m) |
Core recovered (m) |
Core recovery
(%) |
Core drilled
(m) |
Total (m) |
Average (Range of ROP) |
|
|
|
|
|
|
|
|
|
| RCB |
1 |
8 |
51.5 |
34.32 |
66.6% |
0.0 |
51.5 |
2.0 (1.3-2.9) |
| RCB |
2 |
15 |
86.4 |
64.05 |
74.1% |
0.0 |
86.4 |
2.4 (1.3-4.9) |
| RCB |
3 |
13 |
109.4 |
96.43 |
88.1% |
0.0 |
109.4 |
2.5 (2.1-4.3) |
| RCB |
4 |
16 |
137.2 |
106.15 |
77.4% |
0.0 |
137.2 |
2.9 (1.9-4.9) |
| RCB |
5 |
11 |
98.2 |
91.28 |
93.0% |
0.0 |
98.2 |
2.1 (1.6-2.6) |
| RCB |
6 |
12 |
111.9 |
106.35 |
95.0% |
0.0 |
111.9 |
2.4 (1.9-3.2) |
| RCB |
7 |
11 |
91.7 |
86.81 |
94.7% |
0.0 |
91.7 |
2.8 (1.8-4.3) |
| RCB |
8 |
19 |
169.5 |
140.80 |
83.1% |
0.0 |
169.5 |
3.1 (2.1-6.1) |
| RCB |
9 |
4 |
25.8 |
25.44 |
98.6% |
0.0 |
25.8 |
2.9 (2.0-3.2) |
| RCB |
10 |
13 |
121.6 |
114.36 |
94.0% |
0.0 |
121.6 |
3.6 (2.9-5.2) |
|
|
|
|
|
|
|
|
|
| Formation
data |
| Cored interval
(mbsf) |
|
Nature |
|
Description |
Comments |
|
|
|
|
|
|
|
|
|
| 0-500.7 |
|
Cored during
Leg 118 |
|
Gabbro/olivine
gabbro |
Lower
0.7 m cored with 3.75 NCB. |
| 504.8-1508.0 |
|
Cored during
Leg 176 |
|
Gabbro/olivine
gabbro |
Leg
176 tagged 4.8 m deeper than Leg 118. |
|
|
|
|
|
|
|
|
|
