The invention relates to a double-rubber-
barrel packer. The double-rubber-
barrel packer comprises an
upper joint, a lower joint and a center tube, wherein the center tube is sleeved with an outer tube; the outer tube is sleeved with an upper rubber
barrel and a lower rubber barrel, and the outer tube is sleeved with a lower cylinder sleeve between the upper rubber barrel and the lower rubber barrel; an upper compression sleeve for compressing the upper rubber barrel upwards and a lower
piston for compressing the lower rubber barrel downwards are arranged between the lower cylinder sleeve and the outer tube; setting sealing liquid inlet holes are correspondingly formed in the positions, between the upper compression sleeve and the lower
piston, of the center tube and the outer tube; the lower cylinder sleeve and the upper compression sleeve are correspondingly provided with locking structures which are locked in a matched mode, the lower cylinder sleeve is fixedly connected with the lower
piston, a sleeve unsealing
assembly is arranged on the position, on the upper side of the upper rubber barrel, of the outer tube, and the center tube is provided with a lifting and hanging structure which is matched with the sleeve unsealing
assembly to drive the sleeve unsealing
assembly to ascend to unseal the upper rubber barrel when the center tube is lifted; and an unsealing seat assemblyis arranged on the position, on the lower side of the lower rubber barrel, of the outer tube, when the central tube is lifted, the unsealing seat assembly can be driven downwards by a
pipe column on the lower side of the lower joint to unseal the lower rubber barrel. The double-rubber-barrel packer has simple unsealing operation and good unsealing effect.