These error sources can be reduced significantly by using a local geomagnetic In-Field Referencing (IFR) model and by subsequently applying multistation analysis (MSA) corrections to the raw survey measurements. Read out the full tech paper here: https://www.helmerichpayne.com/resources/technical-publications/magnetic-referencing-and-real-time-survey-processing-enables-tighter-spacing-of-long-reach-wells or contact us to know more: https://www.helmerichpayne.com/contact.All Rights Reserved