Patent ID: 8708056
Filing Date: 2014-04-29
Classification: E21B

Abstract:
1. A packer comprising: a mandrel; a primary opening seat attached to an interior of the mandrel; a secondary opening seat attached to the interior of the mandrel; a landing seat attached to the interior of the mandrel; a packer element attached to an exterior of the mandrel; and a closing seat attached to the interior of the mandrel; wherein the secondary opening seat is between the primary opening seat and the landing seat; wherein the primary opening seat is between the closing seat and the secondary opening seat; wherein the primary opening seat is configured to engage an opening plug and move from a first position where the primary opening seat covers an opening to a second position where the primary opening seat does not cover the opening; wherein the secondary opening seat is configured to engage the primary opening seat and move from a first position where the secondary opening seat covers a port to a second position where the secondary opening seat does not cover the port; wherein the landing seat is configured to engage the secondary opening seat and provide a seal; wherein the packer element is configured to set when the port is not covered and the seal is provided; and wherein the closing seat is configured to engage a closing plug and move from a first position where the closing seat does not cover the opening to a second position where the closing seat covers the opening.