STUDY OF THE DYNAMİCS OF THE İMPACT OF DRİLLİNG FLUİD SLURRY ON THE WELL BOTTOM

Currently, the study of the effect of drilling fluid slurry on the well bottom during the drilling of oil and gas wells remains one of the urgent problems in the center of attention. The main purpose of research on the dynamics of drilling fluid (or drilling mud) during the drilling process is to gather information about the effect of drilling fluid on the drilling process. As a result of this research, more detailed information about the effect of drilling mud on the well bottom will be determined, and based on that information, strategies will be drawn up for the selection and use of drilling mud to make the drilling process more effective, safe and successful. Drilling mud is a homogeneous mixture of two or more substances. system is understood. A solution is a mixture consisting of one or more soluble components and also solvents. In general, both dissolved components and solvents can be solid, liquid or gaseous. At this time, the dissolved substances are constantly distributed in the form of small particles in the solvent environment, causing the formation of a new dispersed system called a solution. At this time, dissolved substances create a dispersed phase, and solvents create a dispersed medium. The clay solutions in the drilling solution can be called the dispersed system, the dissolved clays can be called the dispersed phase, and the water, which is the solvent, can be called the dispersed medium. When used for unconventional formations, selecting a drilling fluid based on data from conventional reservoirs may be the wrong choice. During exposure to the drilling fluid, the drilling fluid has a chemical-mechanical effect on the formation rock; this interaction may be sharp or subtle, depending on the minerals that make up the rock structure and their chemical sensitivity to the fluid composition. Improper selection of drilling fluid can lead to strong rock-fluid interactions, resulting in wellbore instability. This paper presents a comprehensive experimental study investigating the effect of different drilling fluids on the mechanical properties of conventional and unconventional rock samples. Studying the dynamics of the impact of the drilling fluid solution on the bottom of the well is an important aspect of the drilling process. This study aims to better understand how the drilling fluid affects the bottom of the well and the surrounding formation. The results of this study can provide valuable information to optimize the use of drilling fluid solution, improve drilling efficiency and reduce the risk of well damage. Keywords: drilling fluid, drilling bit, layer, rock, well, wellbore, pressure.