Numerical approximation improves well survey calculation

04/09/2001
It is now possible to improve the precision of well survey calculations by order of magnitude with numerical approximation. Although the most precise method of simulating and calculating a wellbore trajectory generally requires more calculation than other, less-accurate methods, the wider use of computers in oil fields now eliminates this as an obstacle. The results of various calculations show that there is a deviation of more than 10 m among the different methods of calculation for a directional well of 3,000 m.1 Consequently, it is important to improve the precision and reliability of survey calculation-the fundamental, necessary work of quantitatively monitoring and controlling wellbo...
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