A flexible, filter device to protect barrier valves

Abstract

A debris barrier for protecting a hydrocarbon reservoir in a downhole well environment includes a filter securely positioned within a production tubing section of the downhole well environment. The production tubing section is couple-able with an isolation valve downstream of the isolation valve. The production tubing section includes a first set of members securely positioned along a first circumferential surface of the production tubing section and a second set of members securely positioned along a second circumferential surface of the production tubing section, wherein the first set and the second set of members extend radially. The members can be angled in a downstream direction. The first set of members and the second set of members can be offset axially from each other. The production tubing section can comprise at least one flow hole positioned near the bristles and a debris collection chamber. The filter can be dissolvable, displaceable, and removable.

What is claimed is: 
     
         1 . A system for isolating a portion of a downhole well, the system comprising:
 an isolation valve; and   a filter having members configured to filter debris, the filter coupled to a downstream side of the isolation valve.   
     
     
         2 . The system of  claim 1  wherein the filter comprises:
 a first set of members securely positioned along a first circumferential surface of the isolation valve; and 
 a second set of members securely positioned along a second circumferential surface of the isolation valve; 
 wherein the first set and the second set of members extend radially. 
 
     
     
         3 . The system of  claim 2  wherein the members are angled in a downstream direction. 
     
     
         4 . The system of  claim 2  wherein the first set of members and the second set of members are offset axially to one another. 
     
     
         5 . The system of  claim 2  wherein the isolation valve comprises:
 at least one flow hole positioned near the bristles; and 
 a debris collection chamber. 
 
     
     
         6 . The system of  claim 1  wherein the filter comprises a set of members helically positioned along a circumferential surface of the isolation valve. 
     
     
         7 . The system of  claim 1  wherein the filter is at least one of dissolvable, displaceable, and removable. 
     
     
         8 . A debris barrier for isolating a portion of a downhole well, the debris barrier comprising:
 a filter having members configured to filter debris, the filter securely positioned within a production tubing section;   wherein the production tubing section is couple-able with an isolation valve downstream of the isolation valve.   
     
     
         9 . The debris barrier of  claim 8  wherein the filter comprises;
 a first set of members securely positioned along a first circumferential surface of the production tubing section; and 
 a second set of members securely positioned along a second circumferential surface of the production tubing section; 
 wherein the first set and the second set of members extend radially. 
 
     
     
         10 . The debris barrier of  claim 9  wherein the members are angled in a downstream direction. 
     
     
         11 . The debris barrier of  claim 9  wherein the first set of members and the second set of members are offset axially to one another. 
     
     
         12 . The debris barrier of  claim 9  wherein the production tubing section comprises:
 at least one flow hole positioned near the bristles; and 
 a debris collection chamber. 
 
     
     
         13 . The debris barrier of  claim 8  wherein the filter comprises a set of members helically positioned along a circumferential surface of the production tubing section. 
     
     
         14 . The debris barrier of  claim 8  wherein the filter is at least one of dissolvable, displaceable, and removable. 
     
     
         15 . A method for isolating a portion of a downhole well, the method comprising:
 positioning a filter within a production tubing section of the downhole well environment;   wherein the production tubing section is coupled with an isolation valve downstream of the isolation valve.   
     
     
         16 . The method of  claim 15  wherein the filter comprises:
 a first set of members securely positioned along a first circumferential surface of the production tubing section; and 
 a second set of members securely positioned along a second circumferential surface of the production tubing section; 
 wherein the first set and the second set of members extend radially. 
 
     
     
         17 . The method of  claim 16  wherein the members are angled in a downstream direction. 
     
     
         18 . The method of  claim 16  wherein the production tubing section comprises:
 at least one flow hole positioned near the bristles; and 
 a debris collection chamber. 
 
     
     
         19 . The method of  claim 15  wherein the filter comprises a set of members helically positioned along a circumferential surface of the production tubing section. 
     
     
         20 . The method of  claim 15  wherein the filter is at least one of dissolvable, displaceable, and removable.