Design and Experimental Research on Sealing Structure for a Retrievable Packer

Table 1

Height of the rubber cylinder under different permissible shear stress and friction coefficients (f).

τ (MPa)	F
	0.1	0.15	0.2	0.25	0.3	0.35	0.4	0.45	0.5
1	152	109	85	70	59	51	45	40	37
2	138	101	80	66	57	49	44	39	36
3	126	95	76	64	55	48	42	38	35
4	116	89	72	61	53	46	41	37	34