Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1997-06-02
1999-06-22
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
15104062, 137268, 405158, F16L 104, B08B 100
Patent
active
059136375
ABSTRACT:
A remotely actuable launching system for inserting pigs into a pipeline includes a barrel that can accommodate a series of pigs end-to-end. The pigs are urged towards the forward end of the barrel where they are controlled by a pair of axially spaced actuators for release one at a time into the pipeline. Operation of the actuators is effected by a control system using high pressure nitrogen gas and which can be remotely operated to effect launching of a pig into the pipeline at any desired time, without the need for personnel to be on-site.
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Rajabali Ashraf Nazarali
West Robert Darryl
Opsco Energy Industries Ltd
Taylor Dennis L.
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