Title: Low pour point crude oil compositions

Abstract: A crude oil composition having a low pour point is prepared by incorporating into a waxy crude oil an effective pour depressant amount of an oil-soluble polymer, such as vinyl acetate-ethylene-propylene or butylene terpolymer or a graft copolymer in which propylene or butylene is grafted onto an ethylene-vinyl acetate copolymer backbone or basic chain. The terpolymer may be added with mixing directly to the heated crude or in hydrocarbon solution such as a solution of the terpolymer in a middle distillate or kerosene. In another aspect, this invention relates to a process for the pipeline transportation of the crude oil compositions previously described.

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Inventors: Sweeney, William M. (Wappingers Falls, NY, US)

Application Number: 950197
Filing Date: 1978-10-10
Publication_date: 1979-12-18
Assignee: Texaco Inc. (White Plains, NY)
Primary Class(es): 137/13 44/393
Other Classes:
US Patent Ref:

3048479	Aug, 1962	Ilnyckyj et al.	44/62.
3462249	Aug, 1969	Tunkel	44/62.
3467597	Sep, 1969	Tunkel et al.	44/62.
3675671	Jul, 1972	Sweeney	137/13.
3870063	Mar, 1975	Hayward	137/13.
4127140	Nov, 1978	Sweeney	137/13.

Other Refs:
Primary Examiner: Douglas, Winston A.
Assistant Examiner: Harris-Smith, Y.
Attorney: Ries; Carl G., Kulason; Robert A., Hunter; Walter D.