Back to results
US 4,287,902 AGranted
Method of transporting viscous hydrocarbons
AssigneeConoco Inc.
InventorsGifford G. McClaflin, Charles R. Clark
Life of this patent
Estimating the term…
Abstract
An improvement in the method of transporting viscous hydrocarbons through pipes is disclosed. Briefly, the method comprises adding water containing an effective amount of a combination of an alkaryl sulfonate having a molecular weight of 415 to 470 and a C.sub.1 -C.sub.4 alcohol.
Drawings
Claims10
In the method of transporting viscous crude oil through a pipe the improvement which comprises forming an oil-in-water emulsion by adding to said crude oil about 20 to about 80 volume percent of an aqueous solution containing an effective amount of a combination of
- (a) about 500 to about 10,000 parts per million, based on said crude oil, of an alkaryl sulfonate having a molecular weight of about 415 to about 470 and being represented by the formula
- R--Ar--SO.sub.3 M
- wherein Ar is an aromatic moiety which is phenyl, tolyl, xylyl or ethylphenyl, R is a linear or branched-chain alkyl group containing 17 to 22 carbon atoms, and M is sodium, potassium or ammonium, and
- (b) methanol, wherein the amount of methanol is in the range of 0.1:1 to 10:1 parts by weight based on the alkaryl sulfonate.
1 more element
Dependencies are inferred from the claim text.