The Role of Particle Size Distribution for Fluid Loss Materials on Formation of Filter-Cakes and Avoiding Formation Damage

Abstract Numerous studies have shown that careful particle size selection is the main parameter for reducing fluid loss when drilling permeable or fractured formations. The methods are generally built around either D50 D90 values of particles in as a relative to pore openings formation minimize loss. A series were conducted with aim assessing if analysis could be used separate internal and external filter-cakes, thereby enabling more accurate estimate permeabilities filter-cakes. It was concluded conventional found adequate designing wellbore stabilization purposes. This led higher solids invasion impermeable filter-cake. However, optimization reservoir fluids, different method useful prevent damage. involves selecting resistant towards shear-degradation ⪞3/2 formation. By analyzing regression data correlating these indicators damage, such disc mass permeability change, it ratio defined plugging factor provide insight into extent potential