Paper: CORRECTING OUT-OF-ZONE INJECTION PROBLEMS ON A WATERFLOOD IN SE NEW MEXICO

Due to out-of-zone injection problems in a water flood unit, investigations and a designed remediation to the problems was developed using diagnostics and new technologies with super absorbent crystallized co-polymer systems.Current profiles with their rates and pressure transients were analyzed through multi-rate injectivity profile analysis. Criterion were then established on the physical and chemical attributes needed by a solution to address the problems. The diagnostics while determining the problems and to what extent they were occurring, were also used to determine the placement control needed for a solution treatment. Once the needed physical - mechanical and chemical aspects were analyzed, selection of a solution also was restricted to utilize ones that would withstand the detrimental affects of CO2 injection and resistance to bacterial growth potentials. Shown are methods of diagnostics used, selection processes for needed attributes and solution capabilities, and the placement performance on the solutions. Treatment results show the process performance.