AN EXPERIMENTAL WORK TO EVALUATE CORRELATIONS FOR WELL-CEMENTING HYDRAULICS CALCULUS ON FIELD APPLICATIONS

Abstract

In narrow operational window scenarios of the pre-salt layer, a proper control of slurry hydraulic behavior is a prime necessity. This work aims to present pressure drop experimental data obtained in pipe and annular flow of different cement slurries formulations. Data analysis includes evaluation of friction factor correlations, rheological analysis, and equivalent diameter considerations (for annular flow). The set of equations proposed was, then, used to simulate well-cementing operations and compared to real field data. Improved predictions supported the adoption of the proposed methodology in the cementing design software used by a major operator in Brazil.