The erosion on filter cakes was studied. A water based drilling fluid was placed in a pressure cell and filter cakes where formed under both static and dynamic filtering conditions. The erosion was studied on static formed filter cakes by varying the propeller rotation velocity and rotation duration. The measured response was the filter cake weight and thickness and these two parameters exhibited a slightly different development with regard to erosion. The dynamic filter cakes were formed at different propeller rotation velocity. Increasing fluid movement during the filter cake formation lead to thinner and denser filter cakes which were less prone to erode compared to filiter cakes formed under static and low fluid motion movement.

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