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Drillable Bridge Plugs
Decommissioning boreholes through the use of a cost effective fixed end grout packers incorporating the use of a TAM valve at the base of the packer. The TAM valve works as a rubber one way check valve preventing back flow of grout. These packers are usually cemented in and abandoned downhole, though retrieval is simple and required sometimes. TAM valves also allow the rods and lines to be flushed before retrieval making redeployment easy. Similar packer constructions without a TAM valve do not allow sufficient flushing before retrieval. If undesired conditions after drilling arise a packer made from drillable material is used, the hole is grout injected and redrilled with the packer decommissioned down hole.