welllogs

Well logs, also known as borehole logs, are records of the physical properties of the subsurface formations encountered during drilling operations. They are used to characterize the geological formations, identify potential hydrocarbon reservoirs, and assess the quality of the reservoir. Well logs are typically recorded by specialized logging tools that are lowered into the borehole on a wireline or logging cable. The data collected includes measurements of gamma ray, resistivity, density, neutron porosity, and acoustic properties. These measurements help geologists and engineers to interpret the lithology, fluid content, and structural features of the subsurface. Well logs are essential for reservoir characterization, well completion design, and production optimization. They are also used for environmental assessments and geothermal energy exploration. The interpretation of well logs requires a combination of geological knowledge, petrophysical principles, and experience. The data is often presented in graphical form, with depth plotted on the vertical axis and the measured properties on the horizontal axis. Well logs are a fundamental tool in the oil and gas industry, as well as in groundwater and geothermal exploration.