[ Up ] [ Introduction ] [ Seismic Expressions ] [ Results ] [ Bayu-Undan ] [ Tahbilk ] [ Skua ] [ Jabiru ] [ Cornea ] [ Anomaly1 ] [ Anomaly2 ] [ Anomaly3 ] [ North Rankin ] [ Enfield ] [ Macedon ] [ Chinook ] [ Carnarvon ] [ Novara NW ] [ Zeewulf ] [ Jupiter ] [ Scarborough ] [ Otway ] [ Kingfish ] [ Exploration ] [ Skua Detail ] [ Macedon Detail ] [ Implications ] [ Summary ] [ Acknowledgements ] [ References ] [ Authors ] [ Update ]
Carnarvon
Basin structure (name confidential)
Location:
Carnarvon Basin
Top of HRDZ: 1200 ms
Pull-up: Low
Intensity: Low
Amplitude Anomalies: Moderate
Area: Small
Data Degradation: Low
A
high amplitude zone lies just above this structure in the Carnarvon Basin (Fig.
17). The anomaly may be caused by carbonate cement resulting from gas leakage
from the deeper structure. No anomalies are found in the shallower section,
suggesting a single, probably early phase of leakage. The faulting has reduced
throw above the tilted fault block at 1,300 ms, and does not extend into the
shallow section. This is consistent with an early, fault-controlled model for
the leakage.
Figure 17. Possible HRDZ over a
Carnarvon Basin structure.
The APPEA Journal 2000.
© This collection APPEA Limited 2000. Authors retain © in respect of their own
contribution.
