1887

Abstract

Summary

With the quality increase of seismic amplitudes it becomes often possible to use them to constrain the geomodel infilling in terms of facies or petrophysical properties. Their use can also be extended to the final stage of a geological model building study once the model is completed by checking if the infilling is coherent with the actual seismic response. This so-called Seismic Back-Loop (SBL) offers the opportunity to identify zones where the geological model infilling can be improved and how the petrophysical properties should be modified in order to improve the coherency with actual seismic response. Rock-Physics Model (RPM) is at the core of all computations done during SBL. It represents a quantitative link between the geomodel and seismic domains. RPM is also useful for qualitative and quantitative interpretation of observed mismatches between synthetic and actual seismic response. This imposes high requirements on the reliability of the seismic dataset chosen as reference and also on the accuracy of the RPM. The aim of this paper is to present a SBL case study and show the methodology associated to the use of an RPM during such workflow.

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/content/papers/10.3997/2214-4609.201414392
2015-11-15
2020-07-08
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References

  1. Chambers, K., Pivot, F. and Turpin, P.
    [2013] Conditioning the Population of Reservoir Model Grids with Inverted Seismic Attributes through an Iterative Backloop - Deep Offshore Study. IPTC 2013: Challenging Technology and Economic Limits to Meet the Global Energy Demand.
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    [2011] Checking Compatibility of Geomodel properties with Seismic attributes. EAGE/SPE Joint Workshop - Closing the Loop: Reservoir simulation & geophysical measurements.
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