![]() The model can consider either casing string rotation, reciprocation, or no casing movement. ![]() A casing movement schedule also needs to be defined. The 3D Aperture model requires a detailed well trajectory as well as stiff string calculation of standoff. Another brand of annular displacement model is the 3D Aperture model which can take into account the effects of casing movement on fluid displacement. Precise definitions of the wellbore and current computing capacity have allowed many more detailed cementing models of annular displacement. ![]() Recommended workflow-Annular displacement-with casing movement The flow regime of the fluids in the annulus, determined by comparing Reynolds numbers against the calculated critical Reynolds number for each fluid. While the concentration of displacing fluids is higher than a threshold value (90%). This estimation will account for annular dimensions, fluid rheological properties, flow rates, and gel strength of the original fluid.Ī contact time “counter” based on the time: -Ī displacing fluid is in turbulent flow at the given point. This serves mostly illustration purposes, and great care should be taken when interpreting this map-high concentration of a light gray fluids will appear the same as the lower concentration of a dark gray.Ĭolor-coded risk prediction for mud on the wall, based on the expected thickness of mud layer left behind the fluid interfaces. Concentration of the majority fluid at the given point.
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