Cobra 1
Cobra 1 is a petroleum well in the Arafura, Northern Territory, operated by BHP, drilled to a total depth of 409 m.
Well Information
Drilling Data
- Total Depth
- 409 m
- Datum Elevation
- 22.0 m
- Spud Date
- 12/03/1993
- Completion Date
- 15/03/1993
- Permit
- -
- Rig
- Ocean General
Location
- Latitude
- -9.9628
- Longitude
- 132.4225
Available Log Data
Borehole Geometry (2 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| AZIM | 90 m | 2537 m | 2447 m |
| DEVI | 90 m | 2537 m | 2447 m |
Caliper (2 curves)
Borehole diameter measurements indicating hole condition and washout zones.
| Curve | Start | End | Interval |
|---|---|---|---|
| CAL2 | 1463 m | 2537 m | 1074 m |
| CALS | 344 m | 2534 m | 2189 m |
CaliperCalcite (1 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| CALC | 350 m | 2370 m | 2020 m |
Chromato (4 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| ETHA | 1740 m | 1778 m | 37 m |
| METH | 1100 m | 2249 m | 1149 m |
| MTE1 | 90 m | 2537 m | 2447 m |
| MTE2 | 1457 m | 2543 m | 1086 m |
Density (4 curves)
Bulk density measurements for porosity calculation and lithology identification.
| Curve | Start | End | Interval |
|---|---|---|---|
| DRHO | 1465 m | 2537 m | 1071 m |
| LITH | 1465 m | 2537 m | 1071 m |
| PEF | 1465 m | 2537 m | 1071 m |
| RHOB | 1465 m | 2537 m | 1071 m |
GR (3 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| GR | 90 m | 2526 m | 2435 m |
| GR2 | 1457 m | 2528 m | 1070 m |
| GRAM | 1423 m | 2542 m | 1118 m |
Miscellaneous (3 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| DEPT | 100 m | 2550 m | 2449 m |
| DEPT | 90 m | 2543 m | 2453 m |
| DEPT | 90 m | 2543 m | 2453 m |
Mudlog (6 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| DOLO | 410 m | 2392 m | 1982 m |
| ROP | 100 m | 2550 m | 2449 m |
| ROPS | 1476 m | 2543 m | 1067 m |
| TGAS | 1100 m | 2249 m | 1149 m |
| WBCS | 1476 m | 2543 m | 1067 m |
| WOB | 100 m | 2550 m | 2449 m |
Neutron (2 curves)
Porosity measurements derived from neutron or density tools, indicating reservoir storage capacity.
| Curve | Start | End | Interval |
|---|---|---|---|
| NPHI | 1465 m | 2531 m | 1065 m |
| TNPH | 1465 m | 2531 m | 1065 m |
Resistivity (12 curves)
Electrical resistivity logs used to evaluate fluid content and identify hydrocarbon-bearing zones.
| Curve | Start | End | Interval |
|---|---|---|---|
| LLD | 346 m | 2538 m | 2191 m |
| LLS | 346 m | 2538 m | 2191 m |
| MRE1 | 90 m | 2537 m | 2447 m |
| MRE2 | 1457 m | 2537 m | 1080 m |
| MSFC | 346 m | 2532 m | 2186 m |
| MSFL | 346 m | 2532 m | 2186 m |
| PDEM | 1424 m | 2543 m | 1118 m |
| RACM | 1465 m | 2543 m | 1078 m |
| RADM | 1465 m | 2543 m | 1078 m |
| RPCM | 1465 m | 2543 m | 1078 m |
| RPDM | 1465 m | 2543 m | 1078 m |
| TCDM | 1428 m | 2543 m | 1115 m |
Sonic (2 curves)
Acoustic travel time logs used for porosity estimation and seismic calibration.
| Curve | Start | End | Interval |
|---|---|---|---|
| DTLF | 344 m | 2525 m | 2181 m |
| DTLN | 344 m | 2525 m | 2181 m |
SP (1 curves)
Spontaneous potential logs measuring natural electrical potentials for permeability indication.
| Curve | Start | End | Interval |
|---|---|---|---|
| SP | 346 m | 2519 m | 2172 m |