Effect Of Flow Improvers Research Articles

A series of methods for investigating the effect of a flow improver on the asphaltene and resin of crude oil

With the increasing of oil demand and the decreasing of conventional crude oil production, unconventional crude oil is gaining interest. A flow improver (FI) was synthesized and designed a series of methods for investigating the effect of the flow improver on the asphaltene and resin of two unconventional crude oil samples. Changes in the morphology of the solid samples, as determined by scanning electron microscopy. n-Heptane and alcohol were selected as poor solvents for asphaltene and resin, respectively, to prepare solution samples of different concentrations. The precipitation tendency was judged according to the color change of the solution. Fluorescence microscopy was used to observe the changes in the aggregation morphology of the solution samples before and after FI addition. Solid samples and solution samples were tested by XRD and UV spectrophotometry, respectively. The results consistently showed that the effect of FI on resin was better than that on asphaltene. The effect of asphaltene and resin on the viscosity of crude oil was investigated through the series of studies.

Effect of Flow Improvers on Rheological and Microscopic Properties of Indian Waxy Crude Oil

This research article investigates the effect of flow improvers on the rheological and microscopic properties of a waxy crude oil of the western oil field of India, since the application of flow improvers is the most economic way for controlling the flow assurance problems associated with the production, handling, and processing of waxy crude oils. In this work, hexatriethanolamine mono oleate, which is a flow improver, was synthesized in the laboratory. The effect of this synthesized flow improver and a commercial pour point depressant on the waxy crude oil was studied thoroughly and their experimental results were compared. It was observed that both flow improvers have the potential to improve the flow behavior of this crude oil significantly, and the synthesized flow improver has shown better performance than the commercial flow improver.

Effect of Flow Improvers on the Rheological Properties of Gas Oil and Gas Oil Raffinate

The gas-oil feedstock was solvent extracted with pyrrolidone (NMP) at different temperatures (50°C–70°C) and at different solvent feed ratios (ranging from 2/1 to 5/1). The raffinates were treated with four flow improver additives—two synthesized improvers (poly NAFOL 1822C palmitate-Co-N,N ditallowamine phthalic diamide and poly NAFOL 1822C palmitate Co-N,N ethanolamine phthalic diamide) and two available commercial improvers 2437 (Com. 1) and commercial wax dispersant CWD-11 (Com. 2) to study their efficiencies and suitabilities for improving the rheological properties. The efficiency of the additives in reducing the pour point of gas oil and their raffinates is in the order: Sec. > Et. > Com. 1 > Com. 2.

Effect of Flow Improvers on the Rheological Properties of Gas Oil and Their Raffinates

The gas oil feedstock was solvent extracted with pyrrolidone (NMP) at different temperatures (50°C–70°C) and at different solvent feed ratios (ranging from 2/1 to 5/1.) The raffinates were treated with four flow improvers additives; two synthesized improvers (poly NAFOL 1822C palmitate-Co-N,N ditallowamine phthalic diamide and poly NAFOL 1822C palmitate Co-N,N ethanolamine phthalic diamide) and two available commercial improvers 2437 (Com.1) & commercial wax dispersant CWD-11 (Com.2) to study their efficiencies and suitabilities for improving the rheological properties. The efficiency of the additives in reducing the pour point of gas oil and their raffinates is in the order: Sec > Et > Com1 > Com2.