Method and a system for enhanced flow line control
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United States of America Patent
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Apr 26, 2016
Grant Date -
Jul 9, 2009
app pub date -
May 9, 2006
filing date -
May 10, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A method for automatically controlling a flow in a flow line system including a flow line, a flow line inlet and outlet, and a control valve located in the flow line at the outlet. The method includes controlling the opening of the valve with a control unit. An outlet flow rate is measured or estimated from the flow line. The valve is opened. It is determined if a sudden drop occurs in any of the measurements or estimates. It is decided if a liquid blockage in the flow line is present or approaching. If a liquid blockage is indicated as present or approaching, the opening of the valve is increased by an amount determined by the measurements or estimates. Any further manipulation of the valve is inhibited before a non-zero time period has expired. The steps are repeated. Also a system and a computer program product.
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