Viscosification of hydrocarbon fluids

Details Viscosification of hydrocarbon fluids Viscosification of hydrocarbon fluids

1982-09-13

1984-05-15

Griffin, Ronald W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524606, 524916, C08F 836, C08L 2332, C08L 5300

Patent

active

044489269

ABSTRACT:
The present invention relates to the gelation or viscosification of hydrocarbon fluids, wherein a polymer having the structure xB-[AB].sub.n -yA wherein the A block is hydrophobic and the B block is hydrophilic, n is an integer .gtoreq.1, x and y are 0 to 1 and y is 1 when n is 1, is mixed with an aqueous phase at a critical concentration level of about 0.001 to about 5.0 grams of polymer per 100 ml. of the aqueous phase, more preferably about 0.01 to about 3.0, and most preferably about 0.01 to about 1.0, thereby obtaining a turbid suspension of the polymer in the aqueous phase; adding with stirring about 0.1 to about 15.0 wt. % of a cosolvent to the turbid suspension, more preferably about 2.0 to about 15.0, and most preferably about 5.0 to about 15.0 to form an opalescent solution; stirring the opalescent solution for a sufficient period of time to ensure the formation of a uniform polymeric solution; adding the polymeric solution to a hydrocarbon liquid; and stirring for a sufficient period of time the mixture of polymeric solution and hydrocarbon liquid until phase separation occurs, wherein the hydrocarbon layer is a cloudy viscous pseudo-emulsion and the aqueous phase is clear and nonviscous.

REFERENCES:
patent: 4130517 (1978-12-01), Lundberg et al.
patent: 4282130 (1981-08-01), Lundberg et al.
patent: 4285851 (1981-08-01), Makowski et al.
patent: 4322329 (1982-03-01), Lundberg et al.
patent: 4361658 (1982-11-01), Lundberg et al.

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