Abstract:
A major drawback of directional and horizontal well drilling is the numerous complex
computations required to be done while planning a well. These computations are very
stressful and time consuming especially when done manually. One of the objectives of this
study was to develop a user friendly Excel Spreadsheet program that would make the
computations of these well trajectory parameters easier, faster and accurate. An Excel
Spreadsheet program was developed employing the Minimum Curvature method (and for
other five methods) for wellpath design and planning. This would help increase the usage of
these trajectory methods especially the Minimum Curvature method. The program is able to
provide pictorial views both in the vertical and horizontal plane of the trajectory of the
drilling bit’s position in the wellbore. This would therefore help to minimize risk and
uncertainty surrounding hitting predetermined target. This is possible because deviations can
easily be detected and the necessary directional corrections or adjustment be initiated to re-
orient the drilling bit to the right course before (planning process) and during the drilling
operations
