METHOD OF PRODUCING IN SITU DEPRESSANT ADDITIVE IN PROCESS OF PIPELINE TRANSPORT WITH HIGH-PARAFFIN CRUDE OIL, TREATED BY ANTI-TURBULENT ADDITIVE Russian patent published in 2019 - IPC F17D1/16 C10L1/18 C10L1/196 C10L10/16 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing a depressor additive in situ in process of pipeline transport of high-paraffin oil. Method of producing a depressant additive in situ involves feeding an anti-turbulent additive (ATA) in the form of a solution in a hydrocarbon solvent through a dosing device into the pumped oil stream. After that oil is pumped through the pump unit for the purpose of ATA destruction. Anti-turbulence additive used is a (co)polymer of a high(meth)acrylate of general formula:

where R₁ - hydrogen or methyl, R₂ hydrocarbon group having from 4 to 30 carbon atoms. Molecular weight (co) of polymer is not less than 4⋅10⁶.

EFFECT: invention allows to reduce oil hydraulic resistance and to lower the pour point of oil during its transportation.

1 cl, 2 dwg, 1 tbl, 2 ex