Importance

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Abstract

A fluid transfer module is provided with multiple flow paths for transferring multiple fluids. The module is particularly useful in downhole pumps for passing oil upwardly through a central passage and for passing gas up or down through concentric passages around the central passage. The module also can be used for water or fuel, particularly for downhole steam generation. The module includes an elongate housing or production tubing with an inner coupling having an attached, elongate inner tube which together form a central passage extending substantially the length of the housing. An outer coupling with an attached, elongate outer tube form an inner concentric passage with the inner coupling and tube and an outer concentric passage with the housing. The concentric flow paths are less restrictive to the flow of fluids therethrough. The new transfer module is easier to assemble, has a minimal number of joints, and the joints are designed such that fluid pressure does not tend to place axial force on the components tending to move them apart.

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First Claim