Patent ID: 9022114
Filing Date: 2015-05-05
Classification: E21B

Abstract:
1. A method of completing a well, comprising: (a) securing a casing shoe to a lower end of a casing string and running the casing shoe into the well a selected distance from a bottom of the well, defining an open hole portion in the well below the casing shoe; (b) pumping cement through the casing shoe and back up an annulus surrounding the casing string, while leaving at least part of the open hole portion free of cement; (c) isolating the annulus and the open hole portion from an interior of the casing string while the cement is uncured; (d) providing the casing shoe with a timer that opens the interior of the casing string to the open hole portion after a selected time sufficient for the cement to cure; and (e) pumping a tool down the casing string, and displacing fluid in the casing string below the tool through the casing shoe and into the open hole portion of the well.