Waterflood completion system and assembly

Abstract

A waterflood completion system usable in a well includes a mandrel disposed on a tubing string deployable down a borehole. The mandrel has a side pocket with one or more ports for communicating the tubing string with an annulus of the borehole A waterflood regulator arrangement is connected to the mandrel and has at least one screen directly included therein spaced from the mandrel and lying adjacent the tubing string.

What is claimed is: 
     
         1 . A waterflood completion system usable in a well comprising:
 a mandrel disposed on a tubing string deployable within a borehole, the mandrel having a side pocket with one or more ports for communicating the tubing string with an annulus of the borehole; and   a waterflood regulator arrangement connected to the mandrel and having at least one screen directly included therein spaced from the mandrel and lying adjacent the tubing string.   
     
     
         2 . The system of  claim 1 , wherein the regulator arrangement defines at least one flow path for regulating flow of fluid into the mandrel through the regulator arrangement and out of the screen into the annulus. 
     
     
         3 . The system of  claim 1 , wherein the regulator arrangement includes:
 a regulator valve installed in the side pocket;   a flow tube connected to the mandrel; and   a support structure operatively connected between the flow tube and the tubing string for supporting the screen.   
     
     
         4 . The system of  claim 3 , wherein the support structure includes an adapter connected to the flow tube, and a shroud attached to the tubing string and supporting the screen. 
     
     
         5 . The system of  claim 4 , wherein the screen is positioned between the adapter and the shroud. 
     
     
         6 . The system of  claim 4 , wherein the support structure includes a connector joined to the screen and retained by the shroud. 
     
     
         7 . The system of  claim 3 , wherein a check valve is incorporated within the flow tube. 
     
     
         8 . The system of  claim 3 , wherein the flow tube is adjustable in length. 
     
     
         9 . The system of  claim 1 , wherein the regulator arrangement defines a first flow path for delivering fluid to a first screen located beneath the mandrel, and a second flow path for delivering fluid to a second screen located above the mandrel. 
     
     
         10 . A waterflood regulator arrangement usable in a well casing and adapted to regulate fluid flow between a tubing string and an annulus of a borehole, the arrangement comprising:
 a regulator valve adapted to be installed in a side pocket mandrel of the tubing string;   a flow tube positioned in communication with the regulator valve and adapted to be secured to the mandrel; and   a support structure operatively connected to at least the flow tube and supporting a screen.   
     
     
         11 . The arrangement of  claim 10 , wherein a check valve is incorporated within the flow tube. 
     
     
         12 . The arrangement of  claim 10 , wherein the flow tube is adjustable in length. 
     
     
         13 . The arrangement of  claim 10 , wherein the support structure includes:
 an adapter connected to the flow tube, and a shroud adapted to be joined to the tubing string and directly supporting the screen.   
     
     
         14 . A waterflood completion system usable in a well comprising:
 a mandrel disposed on a tubing string deployable down a borehole, the mandrel having at least one side pocket with one or more ports for communicating the tubing string with an annulus of the borehole;   at least one regulator valve installed in the side pocket of the mandrel for regulating fluid flow between the mandrel and the annulus;   at least one adapter spaced from the mandrel and surrounding the tubing string;   at least one flow tube connecting the mandrel and the adapter;   at least one shroud attached to the tubing string; and   at least one screen coupled to the shroud,   whereby fluid delivered by the tubing string into the mandrel is regulated by the valve and flows through the flow tube into the adapter and out the screen relative to at least one side of the mandrel for delivery into the annulus.   
     
     
         15 . The system of  claim 14 , wherein the adapter has a flow chamber which is in communication with the flow tube. 
     
     
         16 . The system of  claim 14 , wherein the flow tube has an inner member which is threadably connected relative to the outer sleeve so that the flow tube is adjustable between a retracted position and an extended position. 
     
     
         17 . The system of  claim 14 , wherein an inner diameter of the shroud is equal to an inner diameter to the tubing string. 
     
     
         18 . The system of  claim 14 , wherein the screen is positioned between the adapter and the shroud. 
     
     
         19 . The system of  claim 14 , wherein the screen extends beyond the adapter. 
     
     
         20 . The system of  claim 14 , wherein a portion of the fluid flow to the adapter is delivered to another adapter and flows out of another screen relative to an opposite side of the mandrel.