Decisions by storage operators to repair or replace well casing with metal loss require an accurate assessment of the degree of metal loss and the ability to determine the effect of that loss on the remaining strength of the casing. A new generation of logging tools (developed with PRCI cofunding) has increased the ability to accurately size metal loss defects in casing. Prior work funded by PRCI has also included testing the remaining strength of casing with metal loss defects. This testing was performed on casing samples that were not subject to the tensile loads that typical well casing in ...
Decisions by storage operators to repair or replace well casing with metal loss require an accurate assessment of the degree of metal loss and the ability to determine the effect of that loss on the remaining strength of the casing. A new generation of logging tools (developed with PRCI cofunding) has increased the ability to accurately size metal loss defects in casing. Prior work funded by PRCI has also included testing the remaining strength of casing with metal loss defects. This testing was performed on casing samples that were not subject to the tensile loads that typical well casing in service may experience. This is the user manual for an associated Excel spreadsheet to calculate the remaining strength of corroded casing under combined pressure and axial loads.