REVISITING THE EFFECT OF RESERVOIR PARAMETERS: PERMEABILITY, SKIN AND THICKNESS ON FLOWRATE AND PRODUCTIVITY OF A WELL

Abstract

Formation permeability and thickness bear a direct relation with production rate
whereas skin has inverse relationship with it. Additionally the value of skin assorts between positive
(damaged well) to negative (stimulated well) values. In this study, case studies have been conducted by
varying two parameters at a time and keeping the third parameter as constant. The diversification in
skin factor and its resulting effects, while, considering the disparity in thickness and formation
permeability upon flow rate have been scrutinized. Furthermore, for in depth investigation this study
has been conducted to inspect the outcome of negative and positive skin on reservoir production while
integrating it with variations in other two above mentioned parameters. This research show that the
increase in flow rate when the skin is changed from zero to negative values is more as compared to the
case when skin varies from positive value to zero. Further, the permeability and formation thickness
have direct influence on well productivity, surface facilities (which in-turn can also effect the
environment), regardless of the skin value.