POLYMER POUR POINT DEPRESSANT FOR PARAFFIN OIL Russian patent published in 2014 - IPC C10G75/04 F16L58/00 C08F220/18 

FIELD: oil and gas industry.

SUBSTANCE: polymer pour point depressant for paraffin oil contains an active component and a solvent; at that the active component is represented by copolymer of high alkyl acrylates of C₁₈-C₂₆ fraction with linear alkyl groups and high N-alkylacrilamides with linear or branch alkyl groups C₈-C₁₄, and toluene is used as the solvent with the following ratio of components, % by weight: copolymer - 40-60, toluene - remaining part; at that copolymer part of the depressant contains 80-95% by weight of high alkyl acrylates links of C₁₈-C₂₆ fraction with linear alkyl groups and 5-20% by weight of high N-alkylacrilamides links with linear or branch alkyl groups C₈-C₁₄.

EFFECT: depressant decreases pour point for oil of Sobolevskoye oil deposit, Maloye Chernigovskoye oil deposit; the depressant is highly effective as an inhibitor of and paraffin deposits.

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