Completion for downhole applications

Abstract

A technique facilitates connection and disconnection of an upper completion with respect to a lower completion. An overall completion system comprises the upper completion releasably engaged with the lower completion. The upper completion and the lower completion may comprise hydraulic line segments and electrical line segments which are coupled via at least one hydraulic wet connect and at least one inductive coupler, respectively. The hydraulic line segments may comprise hydraulic control line segments, chemical injection line segments, or a variety of other types of hydraulic line segments that may be selectively engaged and disengaged by the at least one hydraulic wet connect.

1 . A method of servicing a well system, comprising:
 providing a completion system with a lower completion coupled to an upper completion in a wellbore via a polished bore receptacle, a hydraulic wet connect, and an inductive coupler,   closing off an internal flow path of the lower completion;   disengaging the polished bore receptacle, the hydraulic wet connect, and the inductive coupler; and   withdrawing the upper completion from the wellbore for servicing.   
     
     
         2 . The method as recited in  claim 1 , further comprising delivering the upper completion back downhole to engage the lower completion via the polished bore receptacle, the hydraulic wet connect, and the inductive coupler. 
     
     
         3 . The method as recited in  claim 1 , wherein providing comprises providing a plurality of hydraulic wet connects for coupling a plurality of hydraulic lines. 
     
     
         4 . The method as recited in  claim 3 , wherein providing comprises using the plurality of hydraulic wet connects to couple at least one chemical injection line and to couple at least one hydraulic control line. 
     
     
         5 . The method as recited in  claim 3 , wherein providing comprises using the plurality of hydraulic wet connects to couple a plurality of chemical injection lines and to couple a plurality of hydraulic control lines. 
     
     
         6 . The method as recited in  claim 1 , wherein providing comprises using the inductive coupler to connect at least one electrical line to route power signals and data signals between the lower completion and the upper completion. 
     
     
         7 . The method as recited in  claim 1 , further comprising providing the upper completion with a surface controlled subsurface safety valve. 
     
     
         8 . The method as recited in  claim 1 , further comprising providing the lower completion with a plurality of chemical injection assemblies separated by at least one zonal isolation packer. 
     
     
         9 . The method as recited in  claim 1 , further comprising providing the lower completion with a multi-zonal well treatment system. 
     
     
         10 . A system for use in a well, comprising:
 a lower completion having a lower hydraulic line segment, a lower electrical line segment, and a barrier valve; and   an upper completion coupled to the lower completion, the upper completion having an upper hydraulic line segment and an upper electrical line segment, the upper hydraulic line segment being engageable with the lower hydraulic line segment via a hydraulic wet connect and the upper electrical line segment being engageable with the lower electrical line segment via an inductive coupler to enable withdrawal of the upper completion upon closing of the barrier valve.   
     
     
         11 . The system as recited in  claim 10 , wherein the hydraulic wet connect comprises a plurality of hydraulic wet connects coupling a plurality of upper hydraulic line segments to a plurality of lower hydraulic line segments. 
     
     
         12 . The system as recited in  claim 10 , wherein the upper completion slidably engages the lower completion at a polished bore receptacle. 
     
     
         13 . The system as recited in  claim 11 , wherein the plurality of upper hydraulic line segments and the plurality of lower hydraulic line segments form a plurality of hydraulic control lines and a plurality of chemical injection lines. 
     
     
         14 . The system as recited in  claim 10 , wherein the inductive coupler comprises a plurality of internal inductors and a plurality of outer inductors positioned radially outward of the plurality of internal inductors. 
     
     
         15 . The system as recited in  claim 10 , wherein the upper completion comprises a surface controlled subsurface safety valve and an electric submersible pumping system. 
     
     
         16 . The system as recited in  claim 10 , wherein the lower completion comprises a plurality of chemical injection assemblies separated by at least one zonal isolation packer. 
     
     
         17 . A method, comprising:
 routing an electrical line and a hydraulic line along an upper completion and a multi-zonal lower completion; and   engaging or disengaging segments of the electrical line and segments of the hydraulic line during engagement and disengagement of the upper completion and the multi-zonal lower completion by providing the electric line with an inductive coupler and by providing the hydraulic line with a hydraulic wet connect.   
     
     
         18 . The method as recited in  claim 17 , wherein engaging comprises engaging the upper completion with the multi-zonal lower completion at a polished bore receptacle. 
     
     
         19 . The method as recited in  claim 17 , wherein routing comprises routing a plurality of chemical injection lines coupled by a plurality of hydraulic wet connects. 
     
     
         20 . The method as recited in  claim 19 , further comprising providing the multi-zonal lower completion with a plurality of chemical injection assemblies separated by a zonal isolation packer.