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A Three-Region Hydraulic Model for Solid-Liquid Flow with a Stationary Bed in Horizontal Wellbores

Abstract This paper presents a numerical study of cuttings transport in horizontal wellbores. A three-region hydraulic averaging model considers at the bottom of the horizontal pipe a region made with a stationary bed of drill cuttings which behaves as a porous medium. Above this bed there is a two-region fluid with fully suspended solid–liquid flow composed with different concentrations of cuts. The results of the pressure gradient as a function of the average velocity for different bed mobile heights are presented. Pragmatically, it is important to know the behavior of the pressure to establish strategies for drilling horizontal wells.