Statistical analysis of PDC drill bits runnings and their longevity prediction

摘要

Practice of drilling shows that modern drilling tools and the equipments using needs proper models of descriptive statistics for running results forecasting and optimization of initial drilling parameters. Methodological and practical questions of regression models application for drilling are probed at this article. Besides, it was analyzed the statistical data of PDC drill bits penetrations on the oil and gas fields of Ukraine and world, and probability of non-failure operation was calculated.