North Herald 4
North Herald 4 is a petroleum well in the Carnarvon, Western Australia, operated by WMC, drilled to a total depth of 1,337 m.
Well Information
Drilling Data
- Total Depth
- 1,337 m
- Datum Elevation
- 38.9 m
- Spud Date
- 12/07/1990
- Completion Date
- 29/07/1990
- Permit
- WA TL 2
- Rig
- Valiant
Location
- Latitude
- -21.1752
- Longitude
- 115.2640
Available Log Data
Other (2 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| DEPT | 294 m | 1336 m | 1042 m |
| DEPT | 380 m | 1336 m | 956 m |
Borehole Geometry (2 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| AZIM | 294 m | 1336 m | 1042 m |
| DEVI | 294 m | 1336 m | 1042 m |
Caliper (1 curves)
Borehole diameter measurements indicating hole condition and washout zones.
| Curve | Start | End | Interval |
|---|---|---|---|
| CALI | 998 m | 1307 m | 308 m |
Chromato (5 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| BUTA | 700 m | 1335 m | 635 m |
| ETHA | 545 m | 1335 m | 790 m |
| METH | 380 m | 1335 m | 955 m |
| PENT | 700 m | 1210 m | 510 m |
| PROP | 570 m | 1336 m | 766 m |
GR (2 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| GR | 998 m | 1313 m | 314 m |
| GRD | 307 m | 1319 m | 1012 m |
Mudlog (3 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| ROP | 324 m | 1336 m | 1011 m |
| TGAS | 385 m | 1334 m | 949 m |
| WOB | 324 m | 1336 m | 1011 m |
Resistivity (5 curves)
Electrical resistivity logs used to evaluate fluid content and identify hydrocarbon-bearing zones.
| Curve | Start | End | Interval |
|---|---|---|---|
| ILD | 998 m | 1316 m | 317 m |
| ILM | 998 m | 1316 m | 317 m |
| LL3 | 998 m | 1317 m | 318 m |
| SNC | 308 m | 1320 m | 1012 m |
| TEMP | 327 m | 1335 m | 1007 m |
Sonic (1 curves)
Acoustic travel time logs used for porosity estimation and seismic calibration.
| Curve | Start | End | Interval |
|---|---|---|---|
| DT | 998 m | 1310 m | 311 m |
SP (1 curves)
Spontaneous potential logs measuring natural electrical potentials for permeability indication.
| Curve | Start | End | Interval |
|---|---|---|---|
| SP | 998 m | 1321 m | 322 m |