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Patent Searching and Data


Title:
PIPELINE PLUNGER
Document Type and Number:
WIPO Patent Application WO2017009591
Kind Code:
A1
Abstract:
A plunger (10) located in a pipeline (20), which can be used as a pump or for pigging but which allows the pipeline (20) to be used as a normal pipeline when the plunger (10) is not in use includes an axial passage (12) extending in the same direction as the pipeline (20), wherein the axial passage (12) includes a valve (16) which can be used to open or close the passage (12) through the plunger (10). Means are provided to move the plunger (10) along the pipeline (20), and these may take the form of a magnet (14) in the plunger (10) and an electrical stator (22) in the pipeline (20), such that supply of electrical power to the stator (22) can be controlled to control the speed and direction of movement of the plunger (10). Stops (24, 26) may be provided to limit the range of movement of the plunger (10) in the pipeline (20), and one of these stops (24, 26) may be associated with a one-way valve.

Inventors:
VINGE TORSTEIN (NO)
KALLEVIK HARALD (NO)
HEGGUM GEIR (NO)
Application Number:
GB2015052038W
Publication Date:
January 19, 2017
Filing Date:
July 15, 2015
Export Citation:
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Assignee:
STATOIL PETROLEUM AS
STEVENS, Jason
International Classes:
F16L55/10; F04B47/12; F16L55/30
Domestic Patent References:
WO2014044334A22014-03-27
Foreign References:
GB2112872A1983-07-27
US5960875A1999-10-05
Other References:
None
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