Pig launcher

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8752229
APP PUB NO 20130111680A1
SERIAL NO

13697488

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An apparatus (10) for launching one or more pigs (5) for cleaning of production flow lines, or tubing, on the sea bed is shown. The apparatus includes a lifting frame (1) retaining a charging pipe (3) which is able to carry a train of pigs (51-510) resting stand-by in the charging pipe (3), a plurality of valves (V1-V4) which on the one side is in fluid communication with the charging pipe (3), and on the other side is in fluid communication with a high pressure drive fluid different from the production flow, a connecting means (2) for connecting of the apparatus (10) to a closable pipe sub leading to the production flow line to be pigged, and an actuatable piston (4) which is able to displace the train of pigs within the charging pipe (3).

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Patent Owner(s)

Patent OwnerAddress
KONGSBERG OIL & GAS TECHNOLOGIES ASP O BOX 451 ASKER N-1373

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Archer, Eirik Oslo, NO 2 22
Dahl, Per Ragnar Jar, NO 1 8
Lønnemo, Ulf Rasta, NO 2 8

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