Adjustable opening size filtration configuration and method

Abstract

An adjustable pore size filtration configuration including a first filtration media having openings, a second filtration media having openings, the first filtration media being selectively movable relative to the second filtration media and selectively fixable relative to the second filtration media to adjust a degree of alignment between the first filtration media openings and the second filtration media openings thereby adjusting a pore size of the configuration.

What is claimed is: 
     
         1 . An adjustable pore size filtration configuration comprising:
 a first filtration media having openings;   a second filtration media having openings, the first filtration media being selectively movable relative to the second filtration media and selectively fixable relative to the second filtration media to adjust a degree of alignment between the first filtration media openings and the second filtration media openings thereby adjusting a pore size of the configuration.   
     
     
         2 . The filtration configuration as claimed in  claim 1  wherein the first filtration media is selectively rotational with respect to the second filtration media. 
     
     
         3 . The filtration configuration as claimed in  claim 1  wherein the first filtration media is selectively longitudinally adjustable with respect to the second filtration media. 
     
     
         4 . The filtration configuration as claimed in  claim 1  wherein the first filtration media is selectively adjustable with respect to the second filtration media by movement that follows a path dictated by a J-slot arrangement. 
     
     
         5 . A screen tool comprising:
 a tubular; and   an adjustable pore size filtration configuration disposed radially adjacent the tubular.   
     
     
         6 . The tool as claimed in  claim 5  wherein the filtration configuration includes a woven member having a structure such that movement of the woven member in a first direction causes openings therein to close or shrink and movement of the woven member in a second direction opposite the first direction causes the openings to open or grow, and further comprising a movable device configured to move the woven member in at least one of the first and second directions. 
     
     
         7 . The tool as claimed in  claim 6  wherein the movable device is configured to compress or elongate the woven member. 
     
     
         8 . The tool as claimed in  claim 7  wherein the woven member is a first woven member, and further comprising a second woven member, the first woven member being extended and the second woven member being compressed. 
     
     
         9 . The tool as claimed in  claim 6  wherein the movable device is configured to move the woven member torsionally. 
     
     
         10 . The tool as claimed in  claim 5  wherein the filtration configuration comprises:
 a first filtration media having openings; 
 a second filtration media having openings, the first filtration media being selectively movable relative to the second filtration media and selectively fixable to the second filtration media to adjust a degree of alignment between the first filtration media openings and the second filtration media openings thereby adjusting an effective pore size of the filtration configuration. 
 
     
     
         11 . The tool as claimed in  claim 10  wherein one of the first and second filtration media is rotated relative to the other of the first and second filtration media to cause a change in effective pore size of the filtration configuration. 
     
     
         12 . The tool as claimed in  claim 10  wherein one of the first and second filtration media is axially shifted relative to the other of the first and second filtration media to cause a change in effective pore size of the filtration configuration. 
     
     
         13 . The tool as claimed in  claim 5  wherein the filtration configuration is radially outwardly adjacent the tubular. 
     
     
         14 . The tool as claimed in  claim 5  wherein the filtration configuration is radially inwardly adjacent the tubular. 
     
     
         15 . The tool as claimed in  claim 5  wherein the filtration configuration is manually adjustable by hand locally or by shifting tool remotely. 
     
     
         16 . The tool as claimed in  claim 5  wherein the filtration configuration further includes a J-slot, and sequential positioning of the J-slot corresponds to changes in the pore size of the filtration configuration. 
     
     
         17 . The tool as claimed in  claim 5  further including a shifting profile operably connected to a filtration media in the filtration configuration. 
     
     
         18 . The tool as claimed in  claim 5  further including a collar settable in position to maintain a filtration media in the filtration configuration in a specific state of effective pore size. 
     
     
         19 . A method for managing a wellbore comprising:
 adjusting an effective pore size of the filtration configuration of  claim 10  by selectively moving and selectively fixing the first filtration media relative to the second filtration media.   
     
     
         20 . A method for managing a wellbore comprising:
 adjusting an opening-size of the filtration configuration of  claim 6  by selectively elongating or selectively compressing the woven member to cause the openings therein to close or shrink or cause the openings to open or grow.