Horizontal and vertical well placement in waterflooding projects

A. S. Bagci, Y. Okmen

    Research output: Contribution to journalArticle

    Abstract

    Integrated waterflood asset management consists of reservoir simulation and characterization, fluids and their behavior in the reservoir, creation and operation of wells, and surface processing of the fluids. In this article, waterflooding project is evaluated in the Field K located in the southeastern part of Turkey. The field was discovered in 1961 and has been on production since then. There are a total of 29 wells with 10 producers, 9 closed-in, 3 dumpflooders, 4 injection wells, and 3 abandoned wells in Field K. After obtaining all production, injection and pressure data and making necessary interpretations, water injection performance analysis were carried out. Performance prediction of oil production with well configurations was done. Determination of the location of new wells is a complex problem that depends on reservoir and fluid properties, well and surface specifications, and economic criteria. The operating strategy for this project is based upon a reservoir simulation study as numerical models are detailed and powerful predicitive tools in reservoir management. To reach this goal, a commercial simulator software (IMEX) that is the Computer Modelling Group's (CMG) new generation adaptive simulator was used. One objective of this study was to obtain history matching of 41-year-old robust reservoir with simulation model. The simulation program (IMEX) was able to history match for all of the parameters which resulted on satisfactory history match. Five scenarios were applied in this study to observe the effect of well configurations. These scenarios were performed as drilling of new vertical wells, converting of existing vertical wells to horizontal wells and converting some of the existing wells into water injectors. Using horizontal producers is the most efficient methods in all of the other scenarios. 5,114,000 bbls (20%) of additional oil recovery was achieved if horizontal producers were used. Copyright © Taylor and Francis Group, LLC.

    Original languageEnglish
    Pages (from-to)995-1004
    Number of pages10
    JournalEnergy Sources, Part A: Recovery, Utilization and Environmental Effects
    Volume29
    Issue number11
    DOIs
    Publication statusPublished - Aug 2007

    Fingerprint

    Well flooding
    History
    Fluids
    Abandoned wells
    Simulators
    Reservoir management
    Asset management
    Water injection
    Horizontal wells
    Numerical models
    Drilling
    Specifications
    Recovery
    Economics
    Processing
    Water
    Oils

    Keywords

    • History matching
    • Horizontal well
    • Oil recovery
    • Reservoir simulation
    • Waterflood

    Cite this

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    abstract = "Integrated waterflood asset management consists of reservoir simulation and characterization, fluids and their behavior in the reservoir, creation and operation of wells, and surface processing of the fluids. In this article, waterflooding project is evaluated in the Field K located in the southeastern part of Turkey. The field was discovered in 1961 and has been on production since then. There are a total of 29 wells with 10 producers, 9 closed-in, 3 dumpflooders, 4 injection wells, and 3 abandoned wells in Field K. After obtaining all production, injection and pressure data and making necessary interpretations, water injection performance analysis were carried out. Performance prediction of oil production with well configurations was done. Determination of the location of new wells is a complex problem that depends on reservoir and fluid properties, well and surface specifications, and economic criteria. The operating strategy for this project is based upon a reservoir simulation study as numerical models are detailed and powerful predicitive tools in reservoir management. To reach this goal, a commercial simulator software (IMEX) that is the Computer Modelling Group's (CMG) new generation adaptive simulator was used. One objective of this study was to obtain history matching of 41-year-old robust reservoir with simulation model. The simulation program (IMEX) was able to history match for all of the parameters which resulted on satisfactory history match. Five scenarios were applied in this study to observe the effect of well configurations. These scenarios were performed as drilling of new vertical wells, converting of existing vertical wells to horizontal wells and converting some of the existing wells into water injectors. Using horizontal producers is the most efficient methods in all of the other scenarios. 5,114,000 bbls (20{\%}) of additional oil recovery was achieved if horizontal producers were used. Copyright {\circledC} Taylor and Francis Group, LLC.",
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    Horizontal and vertical well placement in waterflooding projects. / Bagci, A. S.; Okmen, Y.

    In: Energy Sources, Part A: Recovery, Utilization and Environmental Effects, Vol. 29, No. 11, 08.2007, p. 995-1004.

    Research output: Contribution to journalArticle

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    AU - Bagci, A. S.

    AU - Okmen, Y.

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