Retro-viscous fluidic fluid

Details Retro-viscous fluidic fluid Retro-viscous fluidic fluid

1976-03-10

1980-09-09

Cohan, Alan

Fluid handling

Processes

Affecting flow by the addition of material or energy

252 333, 137807, C01M 140

Patent

active

042212294

ABSTRACT:
A fluidic fluid composition containing lamellar micelles and which exhibits retro-viscous properties at noncryogenic temperatures is composed of 7.00-7.35% of a surfactant (preferably petroleum sulfonate having an average equivalent weight of 350-525), 50.00-54.00% of liquid hydrocarbon, 24.80-28.00% of water and optionally up to 13.00-13.95% of a cosurfactant (preferably an alcohol containing 1-20 carbon atoms) and/or electrolyte (preferably inorganic salt). The micelles within the composition must have an axial ratio of at least 3.5. The composition is substantially optically clear, phase stable, birefrigent, and the flow properties are such that substantially large increases in flow rates, e.g. 20-fold, can be realized at very small pressure increases, e.g. 5%. Additional additives to impart desired properties can be included with the composition.

REFERENCES:
patent: 2417850 (1947-03-01), Winslow
patent: 2661596 (1953-12-01), Winslow
patent: 3416549 (1968-12-01), Chaney
patent: 3548852 (1970-12-01), Fisher

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