• experimental parametric equation for the prediction of valve coefficient (cv) for choke valve trims

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 669
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the calculation of nominal choke valve size determines the effective capacity for an oil and gas production system. the degree of restriction for the controlling area in the valve is a function of the surrounding geometry. in an orifice plate this is known as the “velocity of approach” and can be used to determine the meter coefficient (cm). this paper presents a technique for choke valves, based on the meter velocity of approach parameter, which can be used to predict the valve coefficient (cv) for new trim designs. the prediction method uses a data trend based on a number of flow tests conducted on various trim characteristics. the resultant parametric equation is used to predict the cv of a new trim geometry. the method relies on experimental data determined per iec 60534-2-3, with calculations per iec 60534-2-1. this paper further investigates the effect of varying upstream geometry on cv for a 4′ nominal valve.

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