FRACK PLUG WITH TEMPORARY WALL SUPPORT FEATURE

摘要

In a fracturing application a packer for a given zone to be fractured is reinforced during fracturing with an insert that is preferably a sleeve. During times of high collapse pressure loading, the sleeve provides the needed support. When fracking is over the liner sleeve is caused to disappear. The preferred material is controlled electrolytic materials but other materials that can disappear when the anticipated loading is diminished can also be used. The disappearing can be motivated chemically or thermally among other contemplated methods. As a result, there is a larger available bore when production is ready to start.