Method for sealing pipelines using a gel pig
AssigneeCurapipe System Ltd.
InventorsSamuel Perstnev, Boris Natapov, Alexander Perstnev, Reonald Ukhanov, Peter Paz
Life of this patent
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Abstract
The present invention provides methods and methods for curing a leakage in a pipeline, the method including at least one gel pig and at least one sealant composition; wherein the at least one gel pig and the at least one sealant composition form a pig train, adapted to move along the pipeline to a region of the leakage and to seal the leakage.
Claims24
A method for curing at one leakage site in a pipeline, the method comprising
- a. introducing a pig train into the pipeline, the pig train comprising:
- i) at least one gel pig;
- and
- ii) at least one sealant composition;
- wherein said at least one gel pig and said at least one sealant composition form said pig train;
- b. enabling said pig train to move along said pipeline to a region of said at least one leakage and to seal said at least one leakage.
(canceled)
-19. (canceled)
-23. (canceled)
A method according to claim 15, wherein said pig train prevents a bypass of a propelling product by of more than 30%.
A method according to claim 18, wherein said counter pressurized fluid is for controlling velocity of movement of said pig train along said pipeline.
-39. (canceled)
Dependencies are inferred from the claim text.