ANALYSIS OF THE INFLUENCE OF TECHNOGENIC MATERIALS ON THE FILTRATION AND RHEOLOGICAL PROPERTIES OF DRILLING FLUID

Abstract

This paper presents the results of a study on the influence of technogenic polymer-based materials on the filtration and rheological properties of drilling fluids. The relevance of the research is associated with the need to improve the efficiency of oil and gas well drilling while ensuring the rational utilization of large-scale industrial waste. Polyterpenes, polyvinyl alcohol (PVA) production waste, and the water-soluble polymer dimethyldiallylammonium chloride (DDAAC) were investigated as modifying additives for drilling fluids. Experimental studies were carried out using bentonite-based drilling muds prepared in both fresh and mineralized media. The effect of reagent concentration on fluid loss and gel strength was evaluated, as these parameters are among the most important indicators of drilling fluid performance. The results demonstrated that the addition of technogenic materials significantly reduces fluid loss and improves the structural and mechanical properties of the drilling system. The highest efficiency in reducing filtration losses was achieved with dimethyldiallylammonium chloride, which provided the lowest fluid-loss values. Polyterpenes and polyvinyl alcohol waste also exhibited a positive effect on the filtration and rheological characteristics of the drilling fluids. The obtained results confirm the feasibility of using technogenic materials as multifunctional additives for controlling drilling fluid properties, improving well construction quality, and reducing environmental impact through the recycling and utilization of industrial waste. The proposed approach contributes to the development of cost-effective and environmentally sustainable drilling technologies.