Paper: Steve Engleman, Don Everett and Lynn Talley, Halliburton Energy Services

Multiple zone WAG injection techniques have changed little over the years, relying on side-pocket mandrel / injection valve technology to accomplish injection fluid diversion to target zones. These systems rely on mechanical injection valves to disperse the injected fluid. A new technique has been put into use that both simplifies the process and provides increased reliability by eliminating mechanically operated injection valves. Side-pocket mandrel injection control assemblies have been replaced with new reservoir access mandrel systems. This paper will explore the application of this improved downhole technology for WAG injection control.