• New Casing Friction Model for Slickwater: Field Data Validation, Application, and Optimization for Hydraulic Fracturing 

    Reliable characterization and modeling of friction pressures in casing as a function of flow rate, friction reducer (FR) type, FR dosage, and casing ID is critical to optimizing frac designs. However, measuring bottomhole pressures during hydraulic fracturing is challenging, and often, casing friction pressure estimates are made with wellhead pressures along with step-down tests. The novelty of this study is the newly developed casing friction model for frac fluids with FRs. The model results in three main benefits. First, it allows for accurate estimation of FR performance in terms of casing friction pressures to optimize FR selection and dosages. Second, more precise estimation of casing friction pressures allows for evaluation of perforation and near-wellbore friction pressures as well as net pressures during pumping from just wellhead pressures coupled with a step-down test. Third, technical and economic feasibility studies can be performed to evaluate changes in lateral length and casing size designs which impact casing friction pressures. 

    This presentation is from the 2022 SPE Hydraulic Fracturing Technology Conference and Exhibition. 

    • Paper Number: SPE- 209133-MS 
    • Published: 25 January 2022 
    • Authors: Nabijan Nizamidin; Amos Kim; Kristen Belcourt; Magdiel Angeles; Do Hoon Kim; Gojko Matovic; Eric Lege 

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  • New Casing Friction Model for Slickwater: Field Data Validation, Application, and Optimization for Hydraulic Fracturing 

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