Heifer 1
Heifer 1 is a petroleum well in the Bonaparte, Western Australia, operated by BHP, drilled to a total depth of 3,840 m.
Well Information
Drilling Data
- Total Depth
- 3,840 m
- Datum Elevation
- 25.0 m
- Spud Date
- 05/01/1999
- Completion Date
- 04/02/1999
- Permit
- WA 260 P
- Rig
- Ocean Bounty
Location
- Latitude
- -11.2010
- Longitude
- 126.4102
Available Log Data
Borehole Geometry (2 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| DEVI | 3488 m | 3742 m | 254 m |
| HAZI | 3488 m | 3742 m | 254 m |
Caliper (4 curves)
Borehole diameter measurements indicating hole condition and washout zones.
| Curve | Start | End | Interval |
|---|---|---|---|
| C1 | 3494 m | 3742 m | 248 m |
| C2 | 3494 m | 3742 m | 248 m |
| CALI | 3599 m | 3726 m | 126 m |
| CALS | 3499 m | 3819 m | 320 m |
CaliperCalcite (1 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| CALC | 640 m | 3100 m | 2460 m |
Chromato (7 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| ETHA | 2998 m | 3839 m | 841 m |
| IBUT | 3098 m | 3638 m | 540 m |
| METH | 676 m | 3839 m | 3163 m |
| MTEM | 97 m | 3844 m | 3746 m |
| NBUT | 3097 m | 3641 m | 544 m |
| PENT | 3097 m | 3657 m | 559 m |
| PROP | 3000 m | 3828 m | 828 m |
Density (4 curves)
Bulk density measurements for porosity calculation and lithology identification.
| Curve | Start | End | Interval |
|---|---|---|---|
| DRHO | 3599 m | 3726 m | 126 m |
| LITH | 3599 m | 3726 m | 126 m |
| PEF | 3599 m | 3726 m | 126 m |
| RHOB | 3599 m | 3726 m | 126 m |
Dip and Scan (2 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| DDA | 3499 m | 3741 m | 242 m |
| DDIP | 3496 m | 3741 m | 244 m |
GR (4 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| GR | 97 m | 3844 m | 3746 m |
| GR1 | 3599 m | 3716 m | 117 m |
| GR2 | 3488 m | 3733 m | 245 m |
| SGRC | 550 m | 3834 m | 3284 m |
Miscellaneous (3 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| DEPT | 114 m | 3839 m | 3725 m |
| DEPT | 97 m | 3844 m | 3746 m |
| DEPT | 97 m | 3844 m | 3746 m |
Mudlog (5 curves)
Well log curves recorded during wireline logging operations.
| Curve | Start | End | Interval |
|---|---|---|---|
| DOLO | 640 m | 3127 m | 2487 m |
| ROP | 114 m | 3839 m | 3725 m |
| SROP | 554 m | 3841 m | 3286 m |
| TGAS | 590 m | 3839 m | 3249 m |
| WOB | 114 m | 3839 m | 3725 m |
Neutron (2 curves)
Porosity measurements derived from neutron or density tools, indicating reservoir storage capacity.
| Curve | Start | End | Interval |
|---|---|---|---|
| NPHI | 3599 m | 3726 m | 126 m |
| TNPH | 3599 m | 3726 m | 126 m |
Resistivity (9 curves)
Electrical resistivity logs used to evaluate fluid content and identify hydrocarbon-bearing zones.
| Curve | Start | End | Interval |
|---|---|---|---|
| LLD | 3501 m | 3810 m | 308 m |
| LLS | 3501 m | 3810 m | 308 m |
| MRES | 97 m | 3844 m | 3746 m |
| MSFL | 3501 m | 3819 m | 318 m |
| SEDP | 1870 m | 3836 m | 1965 m |
| SEMP | 1870 m | 3836 m | 1965 m |
| SESP | 1870 m | 3836 m | 1965 m |
| SEXP | 1870 m | 3836 m | 1965 m |
| STEM | 1868 m | 3835 m | 1966 m |
Sonic (2 curves)
Acoustic travel time logs used for porosity estimation and seismic calibration.
| Curve | Start | End | Interval |
|---|---|---|---|
| DT | 3499 m | 3828 m | 329 m |
| DTL | 3499 m | 3828 m | 329 m |
SP (1 curves)
Spontaneous potential logs measuring natural electrical potentials for permeability indication.
| Curve | Start | End | Interval |
|---|---|---|---|
| SP | 3501 m | 3806 m | 305 m |