Probabilistic reservoir property modelling jointly constrained by 3D seismic data and hydraulic unit analysis

M. Emami Niri, David Lumley

    Research output: Chapter in Book/Conference paperConference paper

    2 Citations (Scopus)

    Abstract

    Copyright 2014, Sociey of Petroleum Engineers. We present a new method for seismic reservoir characterization and reservoir property modeling based on an integrated analysis of 3D seismic data and hydraulic flow units, and apply it to an example of a producing reservoir offshore Western Australia. Our method combines hydraulic unit analysis with a set of techniques for seismic reservoir characterization including: rock physics analysis, Bayesian inference, pre-stack seismic inversion and geostatistical simulation of reservoir properties. Hydraulic units are geologic layers and zones characterized by similar properties of fluid flow in porous permeable media, and are defined at well locations based on logs, core measurements and production data. However, the number of wells available for hydraulic unit analysis is often extremely limited. In comparison, the lateral coverage and resolution of 3D seismic data is excellent, and can thus be used to extend hydraulic unit analysis away from well locations into the full 3D reservoir volume. We develop a probabilistic relationship between certain 3D seismic data attributes and the hydraulic units we determine at well locations. Since porosity and permeability distributions are estimated for each hydraulic flow unit as part of the process, we can use the 3D seismic probabilistic relationships to constraint geostatistical realizations of porosity and permeability in the reservoir, to be consistent with the flow unit analysis. Reservoir models jointly constrained by both 3D seismic data and hydraulic flow unit analysis can therefore help to improve the accuracy of dynamic reservoir flow simulation and production history matching.
    Original languageEnglish
    Title of host publicationSociety of Petroleum Engineers - SPE Asia Pacific Oil and Gas Conference and Exhibition, APOGCE 2014 - Changing the Game: Opportunities, Challenges and Solutions
    Place of PublicationAustralia
    PublisherSociety of Petroleum Engineers
    Pages368-382
    Volume1
    ISBN (Print)9781634395267
    Publication statusPublished - 2014
    Event2014 SPE Asia Pacific Oil and Gas Conference and Exhibition - Adelaide, Australia
    Duration: 14 Oct 201416 Oct 2014

    Conference

    Conference2014 SPE Asia Pacific Oil and Gas Conference and Exhibition
    CountryAustralia
    CityAdelaide
    Period14/10/1416/10/14

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  • Cite this

    Emami Niri, M., & Lumley, D. (2014). Probabilistic reservoir property modelling jointly constrained by 3D seismic data and hydraulic unit analysis. In Society of Petroleum Engineers - SPE Asia Pacific Oil and Gas Conference and Exhibition, APOGCE 2014 - Changing the Game: Opportunities, Challenges and Solutions (Vol. 1, pp. 368-382). Society of Petroleum Engineers.