The minimum curvature method for directiona survey calculations is the most accurate metho. it assume that the wellbore bath is a curve lies on the surfae of a ball. it is currently the crdited method for survey calculations by most of the survece companies like #Halliburton, #Baker, #schlumberger and #weatherford. This vides present an easy explination of this method with example for hand calculations. it should be useful for #MWDengineers, #Directionaldrillingengineers, #Drillingengineers, #Mudloggers and #Geologists.