4. Wells
  5. Conduit wall or specific conduit end structure
  6. Plural, parallel, nonconcentric conduits

Down Hole Injection, Inc.

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Downhole fluid disposal apparatus and methods

Wells – With below and above ground modification – Eduction pump or plunger in well
Reexamination Certificate

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Downhole fluid disposal apparatus and methods

Wells – Processes – Parallel string or multiple completion well
Reexamination Certificate

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Dual annulus production tool

Wells – Conduit wall or specific conduit end structure – Plural – parallel – nonconcentric conduits
Patent

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