Agip S.p.a.

Eniricerche S.p.a.

Alberto Di Lullo

Armando Marcotullio

Enrico Borgarello

Annibale Manclossi

Luigi Bertero, Deceased

Process for recovering and moving highly viscous petroleum derivatives by the formation of aqueous dispersions in the presence of water with a salinity of more than 0.6% by weight, particularly from 1 to 15% by weight, with the use of hydrosoluble sulfonated dispersants, said process being characterized in that the above sulfonated dispersants have a content of the high molecular weight fraction, determined by SEC analysis (Size Exclusion Chromatography), of more than 4%.

Process for moving heavy crude oils with water having a high content of

Process for recovering and moving highly viscous petroleum products, by the use of aqueous dispersions in the presence of sulphonate dispersers prepared:

Process for recovering and moving highly viscous petroleum products

Process for recovering and moving highly viscous petroleum products as aqueous dispersions in the presence of a sulphonate dispersing agent selected from the sulphonates of alkaline or earth-alkaline metals or ammonium of indene-cumarone sulphonate resins.

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Milan, Italy

Alberto Di Lullo