Geosteering is a sophisticated drilling technique used in the oil and gas industry to navigate a wellbore in real-time based on geological data, enhancing the accuracy of well placement and reservoir targeting. Geosteering involves the continuous adjustment of the well trajectory using measurements obtained from downhole sensors, such as gamma-ray detectors, resistivity sensors, and mud gas analyzers. By analyzing the geological formations encountered during drilling, geosteering allows engineers to optimize well placement within targeted reservoir zones, maximizing hydrocarbon recovery. This technology is particularly crucial in unconventional reservoirs, where precise positioning within complex geological formations is vital. Geosteering enables operators to avoid non-productive zones, optimize production rates, and reduce the environmental impact of drilling. Advances in geosteering technologies include the integration of real-time data with three-dimensional visualization tools, improving the accuracy and efficiency of decision-making during drilling operations. The application of geosteering has revolutionized wellbore placement, contributing to increased reservoir contact, enhanced well productivity, and improved overall efficiency in hydrocarbon extraction.