Without API 5C3, a drilling engineer cannot legally or safely certify a casing design for a deepwater well or a high-pressure shale gas fracking operation.
API RP 5C3 provides the standard equations and templates for calculating the performance properties of steel pipe used as casing or tubing in oil and gas wells. While it is not a design manual itself, it serves as the mathematical foundation that engineers use to determine if a specific pipe can withstand the pressures of a given well. api 5c3 pdf new