Experimental evaluation of thiamine as a new clay swelling inhibitor

Abstract

This study aims at evaluating the performance of thiamine as a new eco-friendly shale inhibitor in water-based drilling fluids (WBDFs). The evaluation experiments include sedimentation, bentonite inhibition, filtration, zeta potential, thermal gravimetric analysis, scanning electron microscopy, X-ray diffraction, shale cuttings recovery, linear swelling and Fourier transform infrared spectroscopy (FTIR). The performance of thiamine was compared to potassium chloride. In contrast to deionized water, the aqueous solution of thiamine exhibited greater power to inhibit montmorillonite (Mt) dispersion, much more Mt loading capacity (280 g/L) and fluid loss, lower Mt mass loss, larger aggregated Mt particles, lower interlayer space of the Mt particles, less shale cuttings disintegration and lower linear swelling. Adsorption of thiamine on Mt led to a significant shift in the value of zeta potential (from −17.1 to +8.54 mV). Thiamine demonstrated superior inhibitive performance than potassium chloride. FTIR analysis confirmed that thiamine is adsorbed on Mt particles. The compatibility test revealed the compatibility of thiamine with conventional WBDF additives. It was concluded that the main probable inhibition mechanisms of thiamine are the cation exchange and Mt surface coating. In view of its prominent inhibition capacity and great environmental acceptability, thiamine is a promising inhibitor for drilling in water-sensitive formations.

A Surface Charge Approach to Investigating the Influence of Oil Contacting Clay Minerals on Wettability Alteration

“…Identified production impairment mechanisms due to asphaltene include wettability and permeability alterations where the most dominant is wettability alterations because of asphaltene molecule adsorption on the rock surface. − Different minerals that make up the reservoir rocks have their properties dependent on chemical foundation, geometric arrangements of ions and atoms, and the electrical forces that bind them together . These minerals and clays hold properties (surface charges) that are affected by the pH of the environment and the interactions that they undergo . More so, the electrokinetic and chemical properties of these minerals and clays in aqueous solutions such as reservoir brine are significant in demystifying inorganic and organic species adsorption mechanisms at interfaces …”

“…6 These minerals and clays hold properties (surface charges) that are affected by the pH of the environment and the interactions that they undergo. 7 More so, the electrokinetic and chemical properties of these minerals and clays in aqueous solutions such as reservoir brine are significant in demystifying inorganic and organic species adsorption mechanisms at interfaces. 8 Asphaltene deposition and adsorption due to fluid−fluid interaction are well documented in the literature; 6,9−13 however, scarce in the literature is the clay mineral effect on asphaltene molecule adsorption.…”

Waste Mandarin Peel as an Eco-Friendly Water-Based Drilling Fluid Additive

“…These additives include sodium hydroxide, potassium chloride, potassium sulphate, polyamine, chromium-containing thinners, many shale stabilizers, and fluid loss additives, etc. [14][15][16]. Many commercially available additives for water-based drilling fluid fall into the category of non-degradable and environmentally hazardous materials [17].…”

Stabilization of Weathered Clay Shale Using Propylene Glycol and Potassium Chloride as An Embankment Material Alternative

“…When it interacts with clay minerals, it has higher bonding energy, preventing water from inhibiting the clay mineral more than another cation. It also requires only minor heat to form a nonexpandable compound (Ghaleh, et al, 2020). According to the Unified Soil Classification System (USCS), KCl or potassium chloride can also increase the consistency of clay soils and change the clay class from clay with low plasticity to silt with low plasticity (Arasan & Yetimoglu, 2007).…”