4D signal enhancement using singular value decomposition, application to mapping OWC movement across the Nelson field

Fiona Jane Reid, Alexandre Bertrand, Alan T. McInally, Colin MacBeth

    Research output: Contribution to conferencePaper

    Abstract

    In this paper we present a new method for time-lapse signal enhancement using singular value decomposition (SVD). Singular value decomposition is used to separate a 4D signal into its constituent parts: common geology, time-lapse response and noise. This signal enhancement technique is used to map out both the original and moved oil-water contact across the Nelson field. The SVD technique allows the oil-water contact (OWC) to be mapped across regions which would have been missed using traditional methods. The oil-water contact is observed to move upwards across the field with the largest movements being associated as anticipated with natural production. The results obtained are consistent with those predicted by the reservoir simulator model. Singular value decomposition is demonstrated to be a useful tool for enhancing the time-lapse signal and for gaining confidence in areas where traditional differencing fails.

    Original languageEnglish
    Pages1398-1401
    Number of pages4
    DOIs
    Publication statusPublished - Oct 2003
    Event73rd Annual International SEG Meeting - Dallas, Texas, United States
    Duration: 26 Oct 200331 Oct 2003

    Conference

    Conference73rd Annual International SEG Meeting
    CountryUnited States
    City Dallas, Texas
    Period26/10/0331/10/03

    ASJC Scopus subject areas

    • Geophysics

    Fingerprint Dive into the research topics of '4D signal enhancement using singular value decomposition, application to mapping OWC movement across the Nelson field'. Together they form a unique fingerprint.

    Cite this