About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
The AAPG/Datapages Combined Publications Database
AAPG Bulletin
Abstract
AAPG Bulletin, V.
2013. The American Association of Petroleum Geologists. All rights reserved.
DOI:10.1306/03271312119
Composition of
seismic
facies: A case study
![Previous Hit](/data/images/arrow_left.gif)
![Next Hit](/data/images/arrow_right.gif)
Stale Emil Johansen1
1Norwegian University of Science and Technology, Department of Petroleum Engineering and Applied Geophysics, Trondheim, Norway; [email protected]
ABSTRACT
In this case study, we used simulated seismic
data
from outcrops on Svalbard to analyze what
seismic
facies are composed of, what the dominating factors in forming the facies are, and which consequences this has for the
interpretation
results.
Seismic
facies analyses can be used to interpret environmental setting, depositional processes, and lithology. Here, we found that noise is the most important factor in forming the
seismic
facies. Noise is defined as all reflections that cannot be ascribed directly to the reservoir model. Effects from overburden and processing dominated, and the low-frequency content of the
seismic
section complicated the
seismic
facies analyses. The main reason for this is that the analysis relies heavily on identified internal patterns and low-angle terminations. Such patterns and terminations are easily created by the
seismic
method itself, by overburden effects, and by artifacts generated when processing the
data
. External form, strong amplitudes, and continuous reflections are robust
seismic
observations, whereas the internal pattern and terminations are commonly deceptive. Identification of boundaries based on predefined patterns of terminations does not work here, and uncritical use of
seismic
facies analysis in this
interpretation
case will create wrong reservoir models. Because of the size of the outcrops, the results from this analysis are relevant for reservoir-scale
seismic
interpretation
and detailed
interpretation
for prospect evaluation in mature basins. For
seismic
interpretation
at a more regional scale, it is probably less relevant.
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
Watermarked PDF Document: $14 | |
Open PDF Document: $24 |
AAPG Member?
Please login with your Member username and password.
Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].