Flow enhancer influence on non-isothermal systems for heavy crude oil production

Abstract

<jats:p>Production of heavy and extra-heavy crude oils generally entails high costs, especially in the winter season, due to heat losses. This work studies the effect of a flow enhancer (a chemical formulation based on biodiesel and oxidized biodiesel of soy oil) on the viscosity of heavy crude oil from different wells in Northern Mexico. The observed results indicate a non-linear decreasing behavior of viscosity concerning temperature and volume fraction of the viscosity reducer. It is also presented a theoretical model that predicts the flow increase that can be achieved using the enhancer in systems in which crude oil temperature is higher than the temperature of the environment. Results showed adequate correspondence between experimental and predicted data. It was found that the enhancer increases the volume of crude oil that can be processed without varying pressure gradient.</jats:p>

Clay-Sand Wettability Evaluation for Heavy Crude Oil Mobility

“…These materials have been tested to reduce pressure drop in pipelines by decreasing the oil viscosity. [27][28][29] This work aims to contrast the theoretical results reported in previous work 11 and the experimental results concerning the efficiency of the materials to improve the fluid flow through porous media.…”

Extra heavy crude oil viscosity and surface tension behavior using a flow enhancer and water at different temperatures conditions

“…High values-shear rate gradient produces Newtonian behavior, influenced the rheological properties of crude oil by SDBS. [ 18 ]; reported the effect of a flow improver formulated by biodiesel plus petroleum-derived organic compounds, changing the Northern Mexico extraheavy crude oil. The results indicated a change in the interaction of asphaltenes and epoxidized ester by their polar-nature and interaction with nonpolar compounds with parts of the chemical compounds added and the amphiphilic character.…”