A Multi-Component and Multi-Functional Synergistic System for Efficient Viscosity Reduction of Extra-Heavy Oil.

ABSTRACT: The extra-heavy oil in the Tahe Oilfield of China has extremely high viscosity, as it is rich in the heavy components asphaltene and resin, creating significant difficulties in its exploitation and transportation. Therefore, it is important to effectively reduce the viscosity and improve the fluidity of this extra-heavy oil. The traditional viscosity reduction method suffers from a high blending ratio and a shortage of light crude oil resources for extra-heavy oil blending. In this study, coal tar and washing oil-widely available low-cost by-products of the coal chemical industry-are used for extra-heavy oil blending and viscosity reduction. Washing oil-containing light components distilled from coal tar-was highly effective in reducing the viscosity of extra-heavy oil. When the dilution r

SUBMITTER: Yang Z 

PROVIDER: S-EPMC12655091 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature