An algorithm to model acid fracturing in carbonates: Insightful sensitivity analysis

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    Acid fracturing is a well stimulation process commonly used in low-permeable carbonate reservoirs. Carbonates are generally low permeable but with high storativity and are natural candidates for acid fracturing. Increased hydraulic fracture penetration with minimum acid fluid loss is the key to effective stimulation in carbonates. This article presents a program integrating acid fracture penetration, fluid loss control, fluid diffusion, conductivity, reservoir fluid flow model, and well productivity index with a two-dimensional hydraulic fracture model. This program shows the post-fracture productivity index, which increases by three to five times, depending on the treatment parameters. The present work will assist the designer in estimating the range of treatment parameters based on parametric sensitivity analyses.

    Original languageBritish English
    Pages (from-to)1046-1058
    Number of pages13
    JournalPetroleum Science and Technology
    Issue number10
    StatePublished - Jan 2010


    • Acid fracturing
    • Acid loss
    • Higher productivity
    • Stimulation
    • Treatment parameters


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