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Zema 1

Otway, South Australia

Zema 1 is a petroleum well in the Otway, South Australia, operated by Ultramar, drilled to a total depth of 2,730 m.

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Well Information

Well Name
Zema 1
Basin
Otway
State
South Australia
Classification
NEST
Operator
Ultramar
Driller
Atco APM
Data Summary
Partial WDS Available

Drilling Data

Total Depth
2,730 m
Datum Elevation
57.7 m
Spud Date
04/02/1992
Completion Date
04/03/1992
Permit
PEL 32
Rig
Rig 2

Location

Latitude
-37.4138
Longitude
140.6661

Available Log Data

2
Log Streams
29
Curves
341,109
Data Points
44,621
Metres

Caliper (2 curves)

Borehole diameter measurements indicating hole condition and washout zones.

Curve Start End Interval
CALI 856 m 2591 m 1734 m
CALS 172 m 2704 m 2532 m

Chromato (6 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
BUTA 1680 m 2609 m 929 m
CO2 1159 m 2594 m 1434 m
ETHA 1366 m 2730 m 1363 m
METH 949 m 2730 m 1780 m
PENT 2525 m 2526 m 1 m
PROP 1387 m 2724 m 1336 m

Density (3 curves)

Bulk density measurements for porosity calculation and lithology identification.

Curve Start End Interval
DRHO 859 m 2591 m 1732 m
PEF 858 m 2591 m 1732 m
RHOB 852 m 2591 m 1739 m

GR (7 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
CGR 2300 m 2586 m 286 m
GR 18 m 2707 m 2689 m
GR2 852 m 1147 m 295 m
POTA 2300 m 2584 m 284 m
SGR 1134 m 2584 m 1449 m
THOR 2300 m 2585 m 285 m
URAN 2300 m 2585 m 285 m

Miscellaneous (2 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
DEPT 18 m 2727 m 2708 m
DEPT 15 m 2730 m 2714 m

Mudlog (2 curves)

Well log curves recorded during wireline logging operations.

Curve Start End Interval
ROP 15 m 2730 m 2714 m
TGAS 949 m 2730 m 1780 m

Neutron (1 curves)

Porosity measurements derived from neutron or density tools, indicating reservoir storage capacity.

Curve Start End Interval
NPHI 1135 m 2586 m 1451 m

Resistivity (4 curves)

Electrical resistivity logs used to evaluate fluid content and identify hydrocarbon-bearing zones.

Curve Start End Interval
LLD 859 m 2727 m 1867 m
LLS 859 m 2726 m 1867 m
MSFC 174 m 865 m 691 m
MSFL 174 m 2711 m 2537 m

Sonic (1 curves)

Acoustic travel time logs used for porosity estimation and seismic calibration.

Curve Start End Interval
DT 172 m 2719 m 2547 m

SP (1 curves)

Spontaneous potential logs measuring natural electrical potentials for permeability indication.

Curve Start End Interval
SP 859 m 2705 m 1845 m