The Directional Drilling provides the useful tools for the drilling of oil wells with well planning, survey data, multilateral wells, plotting in vertical section, plan view and in X-Y-Z (3D), easy tools to create 2D wells and also to calculate 3D sections, calculations between two survey stations and formulas.This app is designed for both iPhone and iPad. You can download it on your iPhone and also on your iPad.Please, before you buy, make sure this app will be useful to you. Visit our website at www.wellcontrol.com.br and check the "User Guide".This app was developed based on existing spreadsheets. There is no comparison with any other software.Our goal was to create a low-cost application with the help of experts to share with drilling engineers, technicians, drillers, students and teachers of drilling engineering. There is no intention to replace the professional softwares.You can contribute with suggestions for improvements, correcting the translation to english, reporting bugs and spreading it to your friends.Features: 1. Well Planning with Multiple Sections (Minimum Curvature); 2. Ability to work with data files; 3. Directional Survey: Edit, Add, Insert and Remove Survey Data; 4. Calculations Methods: - Tangential - Balanced Tangential - Minimum Curvature (default) - Radius of Curvature - Angle Averaging 5. Print Reports; 6. Survey Data Calculations in 5 methods; 7. Formulas of the Methods; 8. Ability to work with length units: foot and meter (metre); 9. Vertical Section View, Plan View and X-Y-Z plotting. 10. Ability to Multilateral wells plotting limited to 6 wells. 11. Easy tool to create 2D Wells (Type I, II and Horizontal).12. Easy tool to calculate 3D sections on well planning.13. Sharing data files via email, iCloud and iTunes.14. Import Well Planning (MD,Inclination,Azimuth) from CSV text format file;15. Export Well Planning (MD,Inclination,Azimuth,Quadrant,TVD,HD,VSection,N/S,E/W,DLS,BUR,TRN) to CSV text format file;16. Import Survey Data from CSV text format file;17. Export Survey Table to CSV text format file;18. Sharing data files with iPad, iPhone and iPod Touch via iCloud, iCloud Drive, AirDrop or email.19. Well Planning Interpolation20. Well Planning Simulated Survey (steps 10m, 30m, 100m or 100ft)User Guide: Download at: http://www.wellcontrol.com.brDISCLAIMER:These tools & materials are provided 'as is' without warranties of any kind, express or implied.Please verify the tools provided by this application by yourself before you use them. Ensure you understand the impact of using these tools.Any use you choose to make of these tools & materials is undertaken by you entirely at you own risk.