Downhole fluid separation system

Downhole fluid separation system, comprises (a) several housings having one or more centrifugal fluid separators therein with an inlet of each separator in fluid contact with an inlet conduit, an overflow of each separator in fluid communication with an overflow conduit, and an underflow of each separator in fluid contact with an underflow conduit; (b) an inlet overflow and under flow conduits of a first housing are connected to the inlet overflow and under flow conduits respectively, of an adjacent second housing; (c) the inlet conduit of a housing where inlet fluids first enter has a greater cross sectional flow area than the inlet conduit of a downstream housing; (d) the overflow conduit of the hosing where overflow fluids last exit has a greater cross-sectional flow area than the overflow conduit of an adjacent upstream housing; and (e) the under flow conduit of a housing where underflow fluid last exit has a greater cross-sectional flow area than t he under flow conduit of an adjacent upstream housing.