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US 2006/0041392 A1Published application
Method, computer program product and use of a computer program for stabilizing a multiphase flow
AssigneeABB Research Ltd.
InventorHakan Korske
Life of this patent
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Abstract
The present invention relates to a method for stabilizating multiphase flow through a pipeline, riser or well flow line (8a), characterized by implementation of a dynamic feedback controller (9) by controlling a control valve or choke (2) at the outlet (13) of the pipeline or riser (8a).
Claims19
A method for stabilizing a multiphase flow in a flow line, where instability of the multiphase flow is caused by at least one slug, comprising
- measuring continuously one pressure variable upstream of the point where the main part of the slug is generated,
- supplying the pressure variable to a dynamic feedback controller, wherein the pressure variable upstream of the slug is an input to the dynamic feedback controller,
- calculating continuously an output of the dynamic feedback controller, and
- controlling a control valve at said flow line by means of the output from the dynamic feedback controller, wherein the multiphase flow is stabilized through out the flow line.
1 more element
Dependencies are inferred from the claim text.