Multiple Zone Completion System

Abstract

A system and method for completing a well with multiple zones of production is provided. For example, a well completion system is provided including one or more polished bore receptacles installed in a casing and a fluid delivery device having at least one seal assembly for selectively isolating a selected well zone and delivering a fluid to the selected zone. Furthermore, a perforating gun may be connected to the fluid delivery device to facilitate perforating a target well zone, isolating the target well zone, and treating the target well zone in a single trip.

1 . A system for use in a wellbore intersecting a well zone, comprising: 
 a tubular member fixed in the wellbore;    a polished bore receptacle arranged within the tubular member below the well zone;    a tubing string for deployment in the wellbore;    a fluid delivery assembly connected to the tubing string, the fluid delivery assembly having at least one port for establishing hydraulic communication between the tubing string and the wellbore; and    a sealing mechanism connected below the fluid delivery assembly adapted to seal with the polished bore receptacle below the well zone.    
   
   
       2 . The system of  claim 1 , further comprising: 
 a polished bore receptacle arranged within the tubular member above the well zone; and    a sealing mechanism connected above the fluid delivery assembly adapted to seal with the polished bore receptacle above the well zone.    
   
   
       3 . The system of  claim 1 , further comprising: 
 a perforating gun connected below the sealing mechanism.    
   
   
       4 . The system of  claim 1 , further comprising: 
 a line for deployment in the wellbore; and    a perforating gun connected to the line.    
   
   
       5 . The system of  claim 1 , wherein the sealing mechanism is selected from a group consisting of O-ring, chevron seal, V-packed seal, bonded elastomer seal, compression seal element, inflatable seal element, and face seal.  
   
   
       6 . A system for use in a wellbore intersecting a well zone, comprising: 
 a tubular member fixed in the wellbore;    a first polished bore receptacle arranged within the tubular member above the well zone and a second polished bore receptacle arranged within the tubular member below the well zone;    an outer tubing string having an upper end, a lower end, and an axial bore therethrough, the lower end of the outer tubing string being open to establish communication between the axial bore of the tubing string and the wellbore;    an inner tubing string having an upper end, a lower end, and an axial bore therethrough, the inner tubing string residing within the axial bore of the outer tubing string;    a diverter tool in connection with the lower end of the inner tubing string, the diverter tool having a port formed therein for establishing hydraulic communication between the axial bore of the inner tubing string and the wellbore;    a first sealing mechanism arranged on the outer tubing string, the first sealing mechanism adapted to seal with the first polished bore receptacle; and    a second sealing mechanism arranged below the port of the diverter tool, the second sealing mechanism adapted to seal with the second polished bore receptacle.    
   
   
       7 . The system of  claim 6 , wherein the sealing mechanism is selected from a group consisting of O-ring, chevron seal, V-packed seal, bonded elastomer seal, compression seal element, inflatable seal element, and face seal.  
   
   
       8 . A system for use in a wellbore intersecting a well zone, comprising: 
 a tubular member fixed in the wellbore;    a polished bore receptacle arranged within the tubular member below the well zone;    a dart for pumping down the wellbore, the dart comprising a sealing mechanism adapted to seal with the polished bore receptacle; and    a perforating gun connected above the dart.    
   
   
       9 . The system of  claim 8 , further comprising: 
 a transmitter arranged proximate the polished bore receptacle, the transmitter adapted to emit a particular signal; and    a receiver connected to the dart, the receiver adapted to detect the signal from the transmitter,    wherein the sealing mechanism is actuated between a collapsed and radially biased position as the receiver detects the signal.    
   
   
       10 . The system of  claim 9 , wherein the perforating gun is fired after a predetermined delay as the receiver detects the signal.  
   
   
       11 . The system of  claim 9 , wherein the sealing mechanism is selected from a group consisting of O-ring, chevron seal, V-packed seal, bonded elastomer seal, compression seal element, inflatable seal element, and face seal.  
   
   
       12 . The system of  claim 9 , wherein the signal is selected from a group consisting of RF signal, radioactive signal, and magnetic signal.  
   
   
       13 . The system of  claim 8 , wherein the dart further comprises: 
 a fishing profile formed on the dart adapted to facilitate retrieval of the dart by a fishing tool.    
   
   
       14 . The system of  claim 8 , wherein the dart further comprises: 
 a centralizer adapted to maintain the alignment of the dart.    
   
   
       15 . A method for use in a wellbore intersecting a well zone, comprising: 
 providing a casing having a polished bore receptacle installed therein;    installing the casing in the wellbore such that the polished bore receptacle is located below the well zone;    providing a fluid delivery tool with a sealing mechanism connected therebelow;    running the fluid delivery tool in the wellbore on a tubing string until the sealing mechanism seals with the polished bore receptacle; and    delivering a treatment fluid to the well zone via the fluid delivery tool.    
   
   
       16 . The method of  claim 15 , further comprising: 
 connecting a perforating gun beneath the sealing mechanism; and    perforating the well zone before delivering the treatment fluid.    
   
   
       17 . The method of  claim 15 , further comprising: 
 circulating sand proximate the well zone via the fluid delivery tool.    
   
   
       18 . A method for use in a wellbore intersecting a well zone, comprising: 
 providing a casing having at least two polished bore receptacle installed therein;    installing the casing in the wellbore wherein at least one polished bore receptacle is located above the well zone and at least one polished bore receptacle is located below the well zone;    providing a fluid delivery tool with a sealing mechanism connected above the fluid delivery tool and a sealing mechanism connected below the fluid delivery tool;    running the fluid delivery tool in the wellbore on a tubing string until one sealing mechanism seals with one polished bore receptacle above the well zone and one sealing mechanism seals with one polished bore receptacle below the well zone; and    delivering a treatment fluid to the well zone via the fluid delivery tool.    
   
   
       19 . The method of  claim 18 , further comprising: 
 perforating the well zone before delivering the treatment fluid.    
   
   
       20 . The method of  claim 18 , further comprising: 
 circulating sand proximate the well zone via the fluid delivery tool.    
   
   
       21 . A method for use in a wellbore intersecting a well zone, comprising: 
 providing a casing having at least two polished bore receptacle installed therein;    installing the casing in the wellbore wherein at least one polished bore receptacle is located above the well zone and at least one polished bore receptacle is located below the well zone;    providing a concentric tubing string comprising an inner string, an outer string, and a sealing mechanism arranged on the outer string;    connecting a fluid delivery tool to the inner string with a sealing mechanism arranged below the fluid delivery tool;    running the concentric string and fluid delivery tool in the wellbore until one sealing mechanism seals with one polished bore receptacle above the well zone and one sealing mechanism seals with one polished bore receptacle below the well zone; and    delivering a treatment fluid to the well zone via the fluid delivery tool.    
   
   
       22 . The method of  claim 21 , further comprising: 
 delivering a treatment fluid to the well zone via the outer string.    
   
   
       23 . The method of  claim 21 , further comprising: 
 circulating sand proximate the well zone via the fluid delivery tool.    
   
   
       24 . The method of  claim 21 , further comprising: 
 circulating sand proximate the well zone via the outer string.    
   
   
       25 . A method for use in a wellbore intersecting a well zone, comprising: 
 providing a casing having a polished bore receptacle installed therein;    installing the casing in the wellbore such that the polished bore receptacle is located below the well zone;    providing a dart having a latching mechanism and a perforating gun attached thereto;    pumping the dart in the wellbore until the sealing mechanism seals with the polished bore receptacle;    perforating the well zone with the perforating gun; and    delivering a treatment fluid to the well zone via the casing.    
   
   
       26 . The method of  claim 25 , further comprising: 
 actuating the sealing mechanism of the dart to expand radially outward to seal with the polished bore receptacle.    
   
   
       27 . The method of  claim 25 , further comprising: 
 actuating the sealing mechanism of the dart to collapse to disengage from the polished bore receptacle.    
   
   
       28 . The method of  claim 26 , wherein actuating the sealing mechanism is achieved by sending a signal to the dart.  
   
   
       29 . The method of  claim 27 , wherein actuating the sealing mechanism is achieved by sending a signal to the dart.