CASING PLUNGER RESTORES PRODUCTION AFTER FAILED CASING LEAK REPAIR IN OKLAHOMA PANHANDLE GAS WELL
A typical "PAL" casing plunger application was modified to recover fluid invasion after the unsuccessful repair of a casing leak. An Oklahoma Panhandle well experienced a casing leak and shut off gas production. Typical repair attempts to squeeze cement the leak were only partially successful. A small leak was evident due to pressure tests, but an injection rate could not be achieved for further attempts to squeeze cement the leak. Extensive swabbing failed to recover lost fluids and invasion of foreign fluids into the well bore. The tubing plunger used prior to the leak was considered impractical. The usual remedy would be rod pump and jack. A casing plunger was installed to recover both lost fluids and fluid entry after the failed casing repair. Restoration of production rates comparable to rates prior to the casing leak has been achieved. Technique modifications, production charts and economics will be presented.