Patent ID: 9388671
Filing Date: 2016-07-12
CPC Classification: E21B

Claim Text:
1. A screen assembly capable of being disposed in a wellbore, comprising: a base pipe comprising a sidewall portion defining at least one opening therein; a rigid member disposed about a first portion of the base pipe and having a piston arranged therein, the piston having a telescoping portion movably arranged within a non-telescoping portion; an autonomous valve vertically arranged within the piston and providing fluid communication between a filter medium and the at least one opening in the base pipe, the filter medium being disposed at least partially about the base pipe and coupled to the telescoping portion of the piston, wherein the autonomous valve comprises: a swellable material disposed about a second portion of the base pipe, the filter medium being at least partially disposed about the swellable material and configured to filter and direct the fluids to the piston, wherein, as the swellable material expands, at least part of the filter medium is displaced toward an inner surface of the wellbore, thereby extending the telescoping portion.