GAS INJECTION AT RISER BASE SOLVES SLUGGING, FLOW PROBLEMS

T.J. Hill BP Research Sunbury Research Centre Sunbury-on-Thames, U.K. Test-rig studies and operating experience by BP International have shown that riser-base gas injection can help prevent severe slugging and smoothen start-up transients in subsea pipelines. The studies were based on predictions that multiphase lines proposed as part of the Forties field extension would be subject to severe slugging.

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