Subsea system and method for interconnecting producing and injecting wells in pairs to an aggregating component

Abstract

The present invention discloses a subsea system for interconnecting producing and injecting wells in pairs to an aggregating component, comprising: at least one production line connecting the aggregating component to an oil, gas or oil and gas producing well, at least one water, gas or alternating water and gas injection line connecting the aggregating component to an injecting well, and at least one service line connecting the producing well and the injecting well. Furthermore, the present invention discloses a method for interconnecting producing and injecting wells in pairs to an aggregating component, characterized by comprising the steps of: interconnecting a producing well with the production aggregating component, interconnecting an injecting well with the injection aggregating component, and interconnecting the injecting well with the producing well.

The invention claimed is: 
     
         1 . A subsea system for interconnecting producing and injecting wells in pairs to an aggregating component, comprising:
 at least one production line that connects the aggregating component to an oil, gas, or oil and gas producing well;   at least one water, gas, or alternating water and gas injection line that connects the aggregating component to an injecting well; and   at least one service line that connects the producing well and the injecting well.   
     
     
         2 . The system of  claim 1 , wherein each of the production line, the injection line, and the service line has a pressure class compatible with the pressure requirements of the production line and the injection line, and wherein each of the production line, the injection line, and the service line has a physical-chemical stability against fluids of the production line and the injection line. 
     
     
         3 . The system of  claim 1 , wherein the aggregating component is a production unit or a subsea manifold. 
     
     
         4 . The system of  claim 1 , wherein the at least one service line interconnects the injecting well and the producing well by means of respective annular or service hubs. 
     
     
         5 . The system of  claim 1 , wherein the injecting well comprises a set of flow control valves for partitioning gas flow between the producing well and the injecting well. 
     
     
         6 . The system of  claim 1 , wherein a service line circuit comprises a blocking mechanism to isolate the fluids inside the service line in relation to the producing well and the injecting well. 
     
     
         7 . A method for interconnecting producing and injecting wells in pairs to an aggregating component, comprising:
 interconnecting a producing well with a production aggregating component,   interconnecting an injecting well with an injection aggregating component, and   interconnecting the injecting well with the producing well.   
     
     
         8 . The method of  claim 7 , further comprising partitioning a flow between the producing well and the injecting well by means of a set of flow control valves of the injecting well. 
     
     
         9 . The method of  claim 7 , further comprising isolating fluids in a service line in relation to the producing well and the injecting well by means of actuating a blocking mechanism in a service line circuit.