Offshore production wells placed through permafrost are subjected to lateral soil forces when production of hot oil thaws the surrounding permafrost. Previous work completed indicates lateral soil movements in the Canadian Beaufort Sea to be large enough to cause severe bending strains in the well casing if the well casing moves with the soil. A lateral pile program was utilized to determine the bending strains induced in the well casing subjected to a free-field displacement of the thawed permafrost soil. Parametric studies were undertaken to determine the effect of varying soil properties and well casing rigidity for a given free-field displacement. The results show well casing strains to be lower than first predicted as the well casing does not move exactly with the soil.

This content is only available via PDF.
You do not currently have access to this content.