Completion systems and methods to complete a well

Abstract

The invention relates to completion systems and methods for completing a well. A completion system, according to the invention, comprises a casing string extending over a plurality of zones of a well, the casing string comprising an opening that provides fluid communication from the well to the casing string, a sleeve positioned within the casing string and configured to slide from a first position to a second position to uncover the opening, and a screen assembly comprising a filter positioned proximate the opening, and a sealing element sealing the screen assembly around the opening to direct fluid flowing through the opening through the filter.The completion method, according to the invention, is represented by installing a casing string over a plurality of zones of the well, the casing string comprising an opening and a sleeve positioned inside the casing string, moving the sleeve from a first position to a second position to uncover the opening in order to ensure fluid communication from one zone of the plurality of zones to an interior part of the casing string, and after moving the sleeve from the first position to the second position, moving the screen assembly, provided with a filter, inside the casing string and towards the sleeve and positioning the filter near the opening.