Subsea multiphase pumping systems

Details Subsea multiphase pumping systems Subsea multiphase pumping systems

2006-05-26

2009-08-04

Smith, Duane (Department: 1797)

Gas separation: processes

Degasification of liquid

Plural successive degassing treatments

C095S261000, C096S207000, C096S209000, C166S357000, C166S267000, C166S105500, C417S313000

Reexamination Certificate

active

07569097

ABSTRACT:
In subsea multiphase pumping systems, the use of a gas-liquid cylindrical cyclone (GLCC) as a separator to recirculate liquid from pump discharge to pump suction, especially during high gas inlet conditions from a multiphase petroleum stream. Further contemplated is protection of the pump from momentary high gas inlet conditions due to an incoming slug flow profile from a petroleum stream, via transforming a naturally varying multiphase petroleum stream into separated phases for measured distribution to the pump suction and ensuring a minimum liquid flow.

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