Casing centralization calculation in horizontal wells using PC's

In this paper the three-moments-equation method is used to calculate casing deflection and centralizer spacing in horizontal wells. This method, when used with a PC, makes it possible to study in detail the deflection of a casing string as a continuous beam in a horizontal wellbore. In particular, this approach makes it possible to study the near-end effect of the casing shoe on the deflection of the other spans in the casing string. Casing deflection in the transition zone where the centralizer spacing changes from one value to another and the casing deflection for an overhang at the casing shoe can also be studied. Examples are presented.