Patent ID: 8298997
Filing Date: 2012-10-30
Classification: C10L,F17D,Y10T

Abstract:
1. A method for enhancing the shear stability of a high-viscosity fluid—water biphasic flow system, comprising: injecting an additive into the biphasic flow system, the additive comprising a salt of a polynuclear aromatic sulfonic acid, wherein the additive has the structure: wherein: “Ar” is a homonuclear or heteronuclear aromatic ring of at least 6 carbon atoms, “X” is selected from Group I and II elements of the long form of The Periodic Table of Elements, and “n” ranges from 1 to 10, wherein the biphasic flow system is a core annular flow system, and wherein the core annular flow system is a pipeline for transporting hydrocarbons, a production tubing in a wellbore or a flowline in a gathering system for hydrocarbons.