SELECTIVE SET MODULE FOR MULTI STRING PACKERS

摘要

In order to overcome the need to completely disassemble a dual or even possibly a multiple string packer on the rig floor and avoid the delays and potential for failure that such a rebuild entails, a dual string packer may be provided with a crossover module located such that fluid communication may be provided from any tubular bore to the internal shifting chamber without completely disassembling the dual string packer. An indexing cassette may be attached to the through tubing mandrels at or near the bottom or lower end of the dual string packer.