Johnston 1
Johnston 1 is a petroleum well in the Surat, Queensland, operated by BHP, drilled to a total depth of 1,931 m.
Well Information
Drilling Data
- Total Depth
- 1,931 m
- Datum Elevation
- 280.0 m
- Spud Date
- 03/12/1982
- Completion Date
- 15/12/1982
- Permit
- -
Location
- Latitude
- -27.7347
- Longitude
- 148.9870
Available Log Data
Caliper (1 curves)
Borehole diameter measurements indicating hole condition and washout zones.
| Curve | Start | End | Interval |
|---|---|---|---|
| CALI | 772 m | 1925 m | 1152 m |
GR (2 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| GR | 193 m | 1917 m | 1723 m |
| GR | 772 m | 1917 m | 1144 m |
Miscellaneous (1 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| DEPTH | 193 m | 1925 m | 1731 m |
Resistivity (3 curves)
Electrical resistivity logs used to evaluate fluid content and identify hydrocarbon-bearing zones.
| Curve | Start | End | Interval |
|---|---|---|---|
| LLD | 772 m | 1919 m | 1147 m |
| LLS | 772 m | 1919 m | 1147 m |
| MSFL | 772 m | 1924 m | 1152 m |
Sonic (1 curves)
Acoustic travel time logs used for porosity estimation and seismic calibration.
| Curve | Start | End | Interval |
|---|---|---|---|
| DT | 204 m | 1923 m | 1718 m |
SP (1 curves)
Spontaneous potential logs measuring natural electrical potentials for permeability indication.
| Curve | Start | End | Interval |
|---|---|---|---|
| SP | 772 m | 1915 m | 1143 m |