Well placement optimisation and risking using 3-D stochastic reservoir modelling techniques

D. Seifert, J. J M Lewis, C. Y. Hern, N. C T Steel

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    13 Citations (Scopus)

    Abstract

    The cost-effective development of small fields requires a thorough description and evaluation of the reservoir, with a strong focus on the estimation of associated uncertainty. This paper describes a new, integrated methodology for defining and risking optimum high-angle development wells as applied to a UKSNS basin-margin gas reservoir. Sequential Indicator Simulation (SIS) realisations of genetic unit distributions were generated for each target reservoir zone, conditioned with relevant geological data derived from the reservoir and the analogue outcrop. The models were 'pin-cushioned' with a large variety of well trajectories that varied in terms of inclination, azimuth, length and position within the zone. Genetic unit strings are then extracted from each well trajectory and analysed statistically, resulting in ranked well trajectories. This integrated approach produces ranked and risked well planning options, on which risk-conscious management decisions are readily made.

    Original languageEnglish
    Title of host publicationNPF/SPE European Production Operations Conference
    Subtitle of host publicationProceedings of the 1996 NPF/SPE European Production Operations Conference; Stavanger, Norway; ; 16 April 1996 through 17 April 1996
    Pages93-104
    Number of pages12
    DOIs
    Publication statusPublished - 1996
    Event1996 NPF/SPE European 3-D Reservoir Modelling Conference - Stavanger, Norway
    Duration: 16 Apr 199617 Apr 1996

    Conference

    Conference1996 NPF/SPE European 3-D Reservoir Modelling Conference
    CountryNorway
    CityStavanger
    Period16/04/9617/04/96

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