Apparatus and method for pigging, flooding, and pressure testing

Details Apparatus and method for pigging, flooding, and pressure testing Apparatus and method for pigging, flooding, and pressure testing

1998-02-10

1999-03-16

Williams, Hezron

Measuring and testing

With fluid pressure

Leakage

73 405R, 73592, 138 89, G01M 308, G01H 300, F16L 5500

Patent

active

058833030

ABSTRACT:
An apparatus and method for pigging, flooding, and pressure testing pipelines utilizing a sliding sleeve valve connected at the end of a pig receiver which automatically opens upon fluid pressure in the pipeline reaching a predetermined limit allowing fluid trapped in the pipeline to escape, and is then automatically closed when the pig enters the pig receiver to allow pressure testing of the pipeline. The present apparatus and method eliminates the need and expense of a crew and/or a separate support vessel with divers or an ROV system at the downstream end of a pipeline during pigging, flooding, and pressure testing of the pipeline.

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