Assessment of xanthan gum and xanthan-g-silica derivatives as chemical flooding agents and rock wettability modifiers

Abstract

Currently, biomolecules flooding in the underground reservoirs acquires sustainable interest owing to their availability and eco-friendly properties. The current study reported chemical displacement by xanthan gum as well as xanthan/SiO2 and xanthan grafted with vinylsilane derivatives. Chemical characterization evaluated by traditional spectroscopic methods. Investigation of fluids response to reservoir environment assessed through rheological performance relative to shearing rate, ionic strength, and thermal stability. A sequence of flooding runs generated on 10 sandstone outcrops with different porosity and permeabilities. Core wetness assessed through relative permeability curves at different water saturation. The flooding tests indicate that grafting of the silica derivative overcome the shortage of xanthan solution in flooding operations relative to the reservoir conditions. The ability of the flooding solutions to alter rock wettability explored through relative permeability curves at different water saturation. The results reveal that the synthesized composite was a promised agent for enhancing oil recovery and profile conformance.

Evaluation of hydrophylic montmorillonite nanofluids and xantane gum in saline environment

“…Similar to previous authors (Amanullah et al, 2011;Ponmani et al, 2014;Perween et al, 2019;Soliman et al, 2020;Ismail et al, 2016;Parizad et al, 2018), in this experimental research, the interaction between NA, XG and sodium and calcium salts were evaluated quantitatively (Prodanov and Freitas, 2013). This test was divided into stages: in the first, NA was characterized by X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF) and Thermogravimetry (TG); in the second, the rheological parameters of the mixture were evaluated, varying the concentration of NA and keeping the concentrations of XG, Sodium Chloride (NaCl), Calcium Chloride (CaCl2) and temperature at 25ºC constant; in the third, keeping the concentration of substances constant and adopting a reference NA concentration, the rheological parameters were again evaluated by varying the temperature; in the fourth, keeping the concentration of the mixture components and the temperature at 25ºC constant, the influence of the hydration time on the rheological parameters was evaluated for a time interval of 24h and 144h.…”

“…However, in the development of nanofluids (Amanullah et al, 2011), they are still associated with bentonite sludge or are rarely applied as a major component of the sludge. Srivatsa and Ziaja (2011) applied SiO2 nanoparticles and surfactants to improve filtrate Development, v. 9, n. 8, e75985305, 2020 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v9i8.5305 control;Soliman et al (2020) promoted XG modification by reaction with nanoparticulate SiO2 to improve rheological properties, resistance to thermal degradation and wettability in rock. However, given its properties, its use has great potential for application.…”

Comparative Analysis of the Effects of Monovalent and Divalent Ions on Imported Biopolymer-Xanthan Gum and Locally Formulated Biopolymers-Gum Arabic and Terminalia Mantaly

“…Xanthan gum has a high molecular weight (˃2 x 10 6 g/mol), and its solutions exhibit shear thinning, higher viscosity, ease of penetration into low permeability zones, and drag reducing criteria in subsurface environments [25][26][27]. Fig.…”

Adsorption of the Xanthan Gum Polymer and Sodium Dodecylbenzenesulfonate Surfactant in Sandstone Reservoirs: Experimental and Density Function Theory Studies

“…Moreover, the hydroxyl (−OH) and carboxyl (−COOH) polar groups of XG form intra- and intermolecular hydrogen bonds in aqueous solution. The viscosity of XG solutions caused by the hydrogen bonding, even at low concentrations, makes the polymer appropriate for polymer flooding in EOR. ,− …”

“…The viscosity of XG solutions caused by the hydrogen bonding, even at low concentrations, makes the polymer appropriate for polymer flooding in EOR. 3 , 5 − 8 …”