Downhole mixer

Details Downhole mixer Downhole mixer

E - Fixed Constructions

21

B

E21B 33/138 (2006.01) E21B 27/02 (2006.01)

Patent

CA 2174174

The invention discloses an apparatus for storing one or more constituents in a downhole tool. The constituents are segregated from each other until such timeas the tool is actuated. At that time, the constituents are forced from their storage position and mixed as they are pushed from their storage position. The resultantmix is then directed to the location where the mixture will finally be placed for eventual solidification. The apparatus and method are useful for inflation of bridge plugs or external casing packers, as well as other downhole applications. Signifi- cant time is provided for the surface operator prior to initiation of the constituent elements by segregating the ingredients until shortly before they are mixed and directed to their final destination. Should a problem arise prior to mixing, theunmixed ingredients can be withdrawn from the wellbore.

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