Generalized and consistent pressure drop and flow regime transition model for drilling hydraulics suitable for slimhole, underbalanced and horizontal wells

W. J. Bailey, J. M. Peden

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

    Abstract

    Generalized laminar and turbulent pressure loss formulations are presented that are suitable for both annular and circular conduits. In so doing, a new rheological parameter is introduced that provides a consistent link between turbulent and laminar flow calculations and flow regime transition criteria. The approach presented is independent of the form of the rheological model of choice, makes no assumptions about conduit geometry, can include the presence of a laminar plug flow region, accommodate drillpipe rotation effects and account for the effects of annular eccentricity. Simple, explicit and general formulations for approximating pressure losses over Measurement While Drilling tools (MWD's) and Positive Displacement Motors (PDM's) are also presented to augment the suite of expressions required for comprehensive hydraulic calculation over the circulating system. Furthermore, procedures for establishing realistic bounds of confidence for laminar pressure loss functions are presented - enabling computation of the degree of certainty attributable to such a calculation. This procedure is applicable to any function requiring fitted parameters, hence it has a broader application potential than just drilling hydraulics. The model demonstrates good agreement with measured data from studies involving real drilling fluids flowing in both circular and annular conduits.

    Original languageEnglish
    Title of host publicationProceedings of the IADC/SPE Asia Pacific Drilling Technology Conference, APDT
    Subtitle of host publicationProceedings of the 1997 SPE/IADC Middle East Drilling Technology Conference; Manama, Bahrain; ; 23 November 1997 through 25 November 1997
    Pages279-296
    Number of pages18
    Publication statusPublished - 1997
    EventProceedings of the 1997 SPE/IADC Middle East Drilling Technology Conference - Manama, Bahrain
    Duration: 23 Nov 199725 Nov 1997

    Conference

    ConferenceProceedings of the 1997 SPE/IADC Middle East Drilling Technology Conference
    CityManama, Bahrain
    Period23/11/9725/11/97

    Fingerprint

    Transition flow
    Horizontal wells
    Pressure drop
    Drilling
    Hydraulics
    Drilling fluids
    Laminar flow
    Turbulent flow
    Geometry

    Cite this

    Bailey, W. J., & Peden, J. M. (1997). Generalized and consistent pressure drop and flow regime transition model for drilling hydraulics suitable for slimhole, underbalanced and horizontal wells. In Proceedings of the IADC/SPE Asia Pacific Drilling Technology Conference, APDT: Proceedings of the 1997 SPE/IADC Middle East Drilling Technology Conference; Manama, Bahrain; ; 23 November 1997 through 25 November 1997 (pp. 279-296)
    Bailey, W. J. ; Peden, J. M. / Generalized and consistent pressure drop and flow regime transition model for drilling hydraulics suitable for slimhole, underbalanced and horizontal wells. Proceedings of the IADC/SPE Asia Pacific Drilling Technology Conference, APDT: Proceedings of the 1997 SPE/IADC Middle East Drilling Technology Conference; Manama, Bahrain; ; 23 November 1997 through 25 November 1997. 1997. pp. 279-296
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    title = "Generalized and consistent pressure drop and flow regime transition model for drilling hydraulics suitable for slimhole, underbalanced and horizontal wells",
    abstract = "Generalized laminar and turbulent pressure loss formulations are presented that are suitable for both annular and circular conduits. In so doing, a new rheological parameter is introduced that provides a consistent link between turbulent and laminar flow calculations and flow regime transition criteria. The approach presented is independent of the form of the rheological model of choice, makes no assumptions about conduit geometry, can include the presence of a laminar plug flow region, accommodate drillpipe rotation effects and account for the effects of annular eccentricity. Simple, explicit and general formulations for approximating pressure losses over Measurement While Drilling tools (MWD's) and Positive Displacement Motors (PDM's) are also presented to augment the suite of expressions required for comprehensive hydraulic calculation over the circulating system. Furthermore, procedures for establishing realistic bounds of confidence for laminar pressure loss functions are presented - enabling computation of the degree of certainty attributable to such a calculation. This procedure is applicable to any function requiring fitted parameters, hence it has a broader application potential than just drilling hydraulics. The model demonstrates good agreement with measured data from studies involving real drilling fluids flowing in both circular and annular conduits.",
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    Bailey, WJ & Peden, JM 1997, Generalized and consistent pressure drop and flow regime transition model for drilling hydraulics suitable for slimhole, underbalanced and horizontal wells. in Proceedings of the IADC/SPE Asia Pacific Drilling Technology Conference, APDT: Proceedings of the 1997 SPE/IADC Middle East Drilling Technology Conference; Manama, Bahrain; ; 23 November 1997 through 25 November 1997. pp. 279-296, Proceedings of the 1997 SPE/IADC Middle East Drilling Technology Conference, Manama, Bahrain, 23/11/97.

    Generalized and consistent pressure drop and flow regime transition model for drilling hydraulics suitable for slimhole, underbalanced and horizontal wells. / Bailey, W. J.; Peden, J. M.

    Proceedings of the IADC/SPE Asia Pacific Drilling Technology Conference, APDT: Proceedings of the 1997 SPE/IADC Middle East Drilling Technology Conference; Manama, Bahrain; ; 23 November 1997 through 25 November 1997. 1997. p. 279-296.

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

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    AB - Generalized laminar and turbulent pressure loss formulations are presented that are suitable for both annular and circular conduits. In so doing, a new rheological parameter is introduced that provides a consistent link between turbulent and laminar flow calculations and flow regime transition criteria. The approach presented is independent of the form of the rheological model of choice, makes no assumptions about conduit geometry, can include the presence of a laminar plug flow region, accommodate drillpipe rotation effects and account for the effects of annular eccentricity. Simple, explicit and general formulations for approximating pressure losses over Measurement While Drilling tools (MWD's) and Positive Displacement Motors (PDM's) are also presented to augment the suite of expressions required for comprehensive hydraulic calculation over the circulating system. Furthermore, procedures for establishing realistic bounds of confidence for laminar pressure loss functions are presented - enabling computation of the degree of certainty attributable to such a calculation. This procedure is applicable to any function requiring fitted parameters, hence it has a broader application potential than just drilling hydraulics. The model demonstrates good agreement with measured data from studies involving real drilling fluids flowing in both circular and annular conduits.

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    Bailey WJ, Peden JM. Generalized and consistent pressure drop and flow regime transition model for drilling hydraulics suitable for slimhole, underbalanced and horizontal wells. In Proceedings of the IADC/SPE Asia Pacific Drilling Technology Conference, APDT: Proceedings of the 1997 SPE/IADC Middle East Drilling Technology Conference; Manama, Bahrain; ; 23 November 1997 through 25 November 1997. 1997. p. 279-296