Reservoir Formation Damage due to Mud Filtration
American Journal of Chemical Engineering
Volume 1, Issue 1, May 2013, Pages: 1-5
Received: May 17, 2013; Published: May 30, 2013
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Abdolreza Dabiri, Department of Petroleum Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
Mohammad Afkhami, Department of Petroleum Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
Hooman Fallah, Department of Petroleum Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
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Transport of particle suspensions in oil reservoirs is an essential phenomenon in many oil industry processes. Solid and liquid particles dispersed in the drilling fluid (mud) are trapped by the rock (porous medium) and permeability decline takes place during drilling fluid invasion into reservoir resulting in formation damage. The formation damage due to mud filtration is explained by erosion of external filter cake. Nevertheless, the stabilization is observed in core floods, which evidences internal erosion. A new mathematical model for detachment of particles is based on mechanical equilibrium of a particle positioned on the internal cake or matrix surface in the pore space. In the current work the analytical solution obtained for mud filtration with one particle capture mechanism with damage stabilization. The particle torque equilibrium is determined by the dimensionless ratio between the drag and normal forces acting on the particle. The maximum retention function of the dimensionless ratio closes system of governing equations for colloid transport through porous medium.
Formation Damage, Drilling Mud, Classical Filtration, Maximum Retention Function External Filter Cake
To cite this article
Abdolreza Dabiri, Mohammad Afkhami, Hooman Fallah, Reservoir Formation Damage due to Mud Filtration, American Journal of Chemical Engineering. Vol. 1, No. 1, 2013, pp. 1-5. doi: 10.11648/j.ajche.20130101.11
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