Gel-like composition for use as a pig in a pipeline

Details Gel-like composition for use as a pig in a pipeline Gel-like composition for use as a pig in a pipeline

1973-02-14

1977-01-18

Cohan, Alan

Fluid handling

Processes

Cleaning, repairing, or assembling

1510406R, 134 22C, 137 1, B08B 904

Patent

active

040033937

ABSTRACT:
A gel-like mass is prepared comprising a highly gelled organic liquid which can be fluidized after its intended use. A hydrocarbon liquid is gelled with a metal salt of an aliphatic substituted orthophosphate ester to form a substantially self-sustaining gel-like mass (slug or pig) when flowing under pressure through a pipeline. The pig may be employed as an interfacial control for different fluids flowing in the same pipeline, and also to remove residual fluids and/or solids from a pipeline.

REFERENCES:
patent: 2983678 (1961-05-01), Pellegrini et al.
patent: 3010853 (1961-11-01), Elliott
patent: 3209771 (1965-10-01), Gogarty et al.
patent: 3494949 (1970-02-01), Monroe et al.
patent: 3505374 (1970-04-01), Monroe
patent: 3631870 (1972-01-01), Livingston
patent: 3757864 (1973-09-01), Crawford et al.

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