Downhole crossover tool with chemical treating or packer...

Details Downhole crossover tool with chemical treating or packer... Downhole crossover tool with chemical treating or packer...

E - Fixed Constructions

21

B

E21B 43/04 (2006.01) E21B 23/00 (2006.01) E21B 34/14 (2006.01) E21B 43/16 (2006.01)

Patent

CA 2425242

A crossover tool is disclosed that permits access through to the wash pipe below after the conclusion of a known gravel packing operation. A ball is trapped to a sleeve after shifting it so as to allow flow through the crossover for acid treatment in the screen area and a reversing out procedure to remove excess acid. Alternatively, pressure delivered through the wash pipe can operate packers, as part of a gravel packing procedure as outlined in two steps in U.S. Patent 6,311,772 is a single trip. The acid treating or other downhole operation through the wash pipe can also be accomplished in a single trip with the gravel packing assembly.

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