RFID Actuated Gravel Pack Valves

Abstract

A device and method that, on a command from the surface, a seat in a tubular may be moved into the bore of a tubular so that a ball of the appropriate size may be caught. The seat may also be moved out of the bore on command so that a ball of the appropriate size will not be caught by the seat.

1 - 20 . (canceled) 
     
     
         21 . A downhole releasable valve seat, comprising:
 a housing having an interior;   a valve seat located in the interior, the valve seat having at least two segments, the segments having a first position and a second position; and   a receiver receiving a signal and moving the segments, upon receipt of the signal, between the first position and the second position.   
     
     
         22 . The seat of  claim 21 , wherein the segments move radially between the first position and the second position. 
     
     
         23 . The seat of  claim 21 , wherein the segments in the first position allow a plug to pass through the interior; and wherein the segments in the second position catch the plug. 
     
     
         24 . The seat of  claim 23 , wherein the segments in the second position form a seal with the caught plug. 
     
     
         25 . The seat of  claim 21 , wherein the receiver actuates a lock, the lock moving the segments between the first position and the second position. 
     
     
         26 . The seat of  claim 21 , wherein the receiver receives the signal communicated by a radio frequency identification device. 
     
     
         27 . The seat of  claim 21 , wherein the receiver receives the signal communicated by a pressure pulse. 
     
     
         28 . A downhole releasable valve seat, comprising:
 a housing having an interior;   a valve seat located in the interior, the valve seat including a collet having at least two fingers, the fingers having a first position and a second position; and   a receiver receiving a signal and moving, upon receipt of the signal, the fingers between the first position and the second position.   
     
     
         29 . The seat of  claim 28 , wherein the fingers move radially between the first position and the second position. 
     
     
         30 . The seat of  claim 28 , wherein the fingers in the first position allow a plug to pass through the interior; and wherein the fingers in the second position catch the plug. 
     
     
         31 . The seat of  claim 30 , wherein the fingers in the second position form a seal with the caught plug. 
     
     
         32 . The seat of  claim 28 , wherein the receiver actuates a lock, the lock moving the fingers between the first position and the second position. 
     
     
         33 . The seat of  claim 28 , wherein the receiver receives the signal communicated by a radio frequency identification device. 
     
     
         34 . The seat of  claim 28 , wherein the receiver receives the signal communicated by a pressure pulse. 
     
     
         35 . A downhole valve, comprising:
 a housing having an interior;   a valve located in the interior, the valve having at least two segments, the segments having a first position and a second position; and   a receiver receiving a signal and moving, upon receipt of the signal, the segments between the first position and the second position.   
     
     
         36 . The valve of  claim 35 , wherein the segments move radially between the first position and the second position. 
     
     
         37 . The valve of  claim 35 , wherein the segments in the first position allow fluid to pass through the interior; and wherein the segments in the second position block fluid flow through the interior. 
     
     
         38 . The valve of  claim 37 , wherein the segments in the second position form a seal. 
     
     
         39 . The valve of  claim 35 , wherein the receiver actuates a lock, the lock moving the segments between the first position and the second position. 
     
     
         40 . The valve of  claim 35 , wherein the receiver receives the signal communicated by a radio frequency identification device. 
     
     
         41 . The valve of  claim 35 , wherein the receiver receives the signal communicated by a pressure pulse.