Abstract

This chapter deals with the special chemicals used for fluid loss additives. Fluid losses may occur when the fluid comes in contact with a porous formation. This is relevant for drilling and completion fluids, fracturing fluids, and cement slurries. Thus, fluid loss additives are used in a variety of fluids used for different purposes. Because the fluids used in petroleum technology are in some cases quite expensive, an extensive fluid loss may not be tolerable. Of course there are also environmental reasons to prevent fluid loss. Reduced fluid loss can be achieved by plugging a porous rock in some way.

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