Design and Experimental Research on Sealing Structure for a Retrievable Packer

Table 2

Material constants of the Yeoh model for two rubber materials at five temperatures.

Material constants	C10 (Pa)	C20 (Pa)	C30 (Pa)
7-30	939840.85	284971.93	79314.0152
7-60	2539782.67	###XXX###2212;1816140.36	1246021.2
7-90	1804782.6	###XXX###2212;534617.057	560936.07
7-120	1692499.74	###XXX###2212;489353.895	918409.019
7-150	1755887.92	###XXX###2212;576447.31	897236.305
8-30	1455627.61	131108.146	929565.95
8-60	1438504.43	###XXX###2212;342433.01	1202324.23
8-90	1987618.3	###XXX###2212;989854.139	2064562.35
8-120	2038447.57	###XXX###2212;808712.075	1754438.74
8-150	2001848.94	###XXX###2212;526508.69	1453226.66