Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1981-07-17
1983-05-17
Lieberman, Allan
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405158, 405170, 106266, F16L 104
Patent
active
043837832
ABSTRACT:
A gel plug of vegetable oil, fatty acid, a particulate filler such as calcium carbonate, and an optional base and/or polymer is employed during construction of an offshore pipeline to separate a gas-filled portion of the pipeline from a water-flooded portion, and to facilitate control and movement of a gas/gel plug/water interface as desired to assist in construction operations.
REFERENCES:
patent: 2409950 (1946-10-01), Meyer
patent: 2914476 (1959-11-01), Alderman et al.
patent: 4252465 (1981-02-01), Broussard et al.
Chemical Abstracts, vol. 80:61205u.
Esparza Joe O.
Kruka Vitold R.
Lieberman Allan
Shell Oil Company
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