Viscoelastic Behavior of Crude Oil-Gum Emulsions in Enhanced Oil Recovery

Abstract

The experimental study of the Creep-recovery examination is necessary to understand the viscoelastic behavior of crude oil-Xanthan gum emulsions. The experimental measurements and analysis of these tests were completed using RheoStress RS100 under controlled stress CS-mode. Rheometers with CS-mode allow for a useful and direct technique for the experimental measurements of creep and recovery stages. This investigation covers a wide range of crude oil concentration of 0–75% by volume, Xanthan concentration range of 0–104 ppm, and two types of Xanthan gums are used and investigated. The creep-recovery measurements of crude oil-Xanthan gums emulsions were extensively investigated. It was important to find the linear viscoelastic range for the examined crude oil-Xanthan gum emulsions. The experimental measurements and analysis of the creep-recovery examinations showed that the linear viscoelastic range was up to 1 Pa. The experimental investigation showed that the higher the concentration of the used gum and crude oil, the lower the compliance of the emulsions. For the Xanthan concentrations of less than 103 ppm, the crude oil-gum emulsion exhibited viscous behavior. However, for the Xanthan concentration of higher than 103, the examined emulsions displayed viscoelastic behavior.

Overview of Methods for Enhanced Oil Recovery from Conventional and Unconventional Reservoirs

“…After analyzing a number of publications [155][156][157], the authors came to the conclusion that today only, less than 5% of the world's oil production is accounted for by projects to increase oil recovery by tertiary methods. At the same time, EOR is one of the methods of oil production that increases the productivity of oil wells.…”

Optimisation Methodology for Skimmer Device Selection for Removal of the Marine Oil Pollution

“…Furthermore, legal regulations for the use of dispersants must be followed. For these reasons, the skimmer device is one of the safest and most widely used method for removing marine pollution [12,13].…”

“…Ghannam et al (2022) [13] emphasised the importance of the oil's viscosity. Highviscosity oils such as crude oil are used as a propellant for ships.…”

“…the skimmer device is one of the safest and most widely used method for removing marine pollution [12,13]. Ghannam et al (2022) [13] emphasised the importance of the oil's viscosity. Highviscosity oils such as crude oil are used as a propellant for ships.…”

Study on microstructure evolution of waxy crude oil emulsions under dynamic cooling conditions

“…In order to analyze the rheological mechanism of waxy crude oil emulsion comprehensively, numerous scholars have conducted investigations on various conditions including viscosity temperature, 2 thixotropic properties, 3 yield stress, 4 and viscoelastic characteristics. 5 It has been observed that these properties are closely associated with shear rate, 6,7 shear time, 8 water content, 9,10 temperature, 11–15 as well as colloids and asphaltene content. 16,17 With the continuous advancement of research and technological innovation, a growing number of researchers have redirected their focus towards investigating the evolutionary process of microstructure.…”