Numerical Simulation on Open Wellbore Shrinkage and Casing Equivalent Stress in Bedded Salt Rock Stratum

Table 1

Material creep parameters of salt rock and mudstone interbed.

	Creep parameter 𝐴	Creep parameter 𝑛
Salt rock	1.12 × 10^−8	3.8
Mudstone interbed	5 × 10^−10	4.35