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Thermal Well Casing Connection Evaluation Protocol

The Thermal Well Casing Connection Evaluation Protocol (TWCCEP) provides procedures for assessing suitability of threaded casing connections for intermediate or production casing strings for thermal recovery wells.
The TWCCEP applies to those field applications in which operational temperatures oscillate between a cold level appreciably below 180°C and a hot level above 180°C, in which casing deformation is primarily driven by thermo-mechanical strain resulting from the above temperature excursions, and in which the casing body might or might not cyclically yield under the corresponding strain-driven loads.
-Determination of worst case configurations with respect to sealability in tension/compresion and galling in seal and thread.
-Impact of material property variations to determine the pin material restriction.
-Determination of make-up target torques for sealability test.