Multi-purpose injection and production well system

Details Multi-purpose injection and production well system Multi-purpose injection and production well system

E - Fixed Constructions

21

B

E21B 43/16 (2006.01) E21B 43/14 (2006.01)

Patent

CA 2366722

A method and apparatus for simultaneously producing fluid from one or more zones of an oil or gas well, while injecting fluid into one or more other zones of the well, and for converting a depleted production zone into an injection zone, by remotely shifting sleeves in the apparatus to selectively align inlet and outlet ports with production and injection flow paths, respectively. A production string is provided within a completion string; the completion string has inlet and outlet ports to the well bore. One or more production sleeves have production conduits which can be selectively aligned with inlet ports by shifting the production sleeves. One or more injection sleeves have injection conduits which can be selectively aligned with outlet ports by shifting the injection sleeves.

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