A non-linear finite element model was developed and verified to simulate three dimensional casing/formation shear interaction. Casing/formation interaction can be an issue in thermal recovery operations, cases where reservoir depletion results in subsidence or faulting or in permafrost regions where there is potential for thaw subsidence. The model was used to examine the effects of several casing design parameters and initial loading conditions on casing structural response to transverse shear deformations. The results were presented in terms of remaining casing clearance as a function of the magnitude of the imposed shear displacement for use by operators in predicting potential well serviceability problems.

For more information contact: Peter Kis, Manager, Drilling and Completion Technology
tel. (780) 450-8989 x284.