Powered by OpenAIRE graph
Found an issue? Give us feedback
addClaim

Constrained rock physics modelling

Authors: Anders Dræge;

Constrained rock physics modelling

Abstract

Seismic reflections are physically explained by contrasts in elastic properties in the subsurface, and rock physics is the science that links the seismic properties to geologic properties. Rock physics models attempt to quantify rock properties with physical parameters like clay content, saturation, and porosity, and use this to predict elastic rock properties, and further to extrapolate to scenarios that have not yet been observed. There are rock physics models made for friable sands, cemented sands, shaly sands, sandy shales, uncemented and cemented shales, to mention a few. Sometimes a large selection of available rock physics models can be more confusing than a blessing: Which model is best suited to predict the observations of a given data set, and how do we know that the model we choose is optimally calibrated to the data? This paper proposes a strategy to evaluate numerous rock physics models in a short time. The method finds the best prediction for each model, which makes it easy to see which models are suited for further modeling. The strategy is applied on a data set from the North Sea Brent group. A selection of the rock physics models with the obtained optimal input parameters is further tested to evaluate the ability to predict data outside the calibration data set. The modeling strategy presented ensures a minimum discrepancy between modeled and recorded data, without abandoning rock physics principles.

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    6
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Average
Average
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!