1. Design and calculation of directional drilling;HAN,2007
2. Geometry of wellbore trajectory;LIU,2006
3. Wellpath planning & trajectory calculation for directional wells: SY/T 5435—2012;National Energy Administration,2012
4. Introduction to wellbore positioning;JAMIESON,2012
5. Accuracy prediction for directional measurement while drilling;WILLIAMSON;SPE Drilling & Completion,2000