A New Calculation Model for Equivalent Circulating Density Considering Interface Effect between Various Fluids during Cementing Process
Jinfei Sun,
Fujie Yang,
Ben Qi
et al.
Abstract:Summary
Equivalent circulating density (ECD) is an essential parameter in the construction of oil and gas wells, which can be used to control the downhole pressure and prevent serious incidents such as well leakage or blowouts. Different engineering tasks will lead to changes in the ECD calculation model; the classical pipe flow theory can be used to calculate the ECD of circulating drilling fluid, but it is not suitable for the cementing displacement because it does not consider the interface e… Show more
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