The invention discloses a long rubber
barrel packer for
oil field water exclusion production. The long rubber
barrel packer at least comprises a central
pipe, wherein the upper end of the central
pipe is connected with an upper connector and the lower end of the central
pipe is connected with a lower connector; a connecting sleeve, a connector, a spring seat sleeve, a middle rubber
barrel assembly and a sliding sleeve sleeves the central pipe in sequence from top to bottom; the upper end of the connecting sleeve is connected with the upper connector and the lower end of the connecting sleeve is connected with the upper end of the connector; the inner
circular surface of the lower end of the connector is connected with a
piston switch; the outer
circular surface of the lower end of the connector is connected with the upper end of the spring seat sleeve; the lower end of the spring seat sleeve is connected with the upper end of the middle rubber barrel
assembly; the lower end of the middle rubber barrel
assembly is connected with a sliding sleeve; the lower connector is internally provided with a positioning step; the positioning step is fixedly provided with a ball seat through an unpacking
shear pin; the packer is combined with an
oil field rod type
oil pump oil production technology, and seat packing and production can be realized through a one-trip string; meanwhile, unpacking
fishing can be carried out by lifting a pipe column and an expansion type packer is applied to the water exclusion production for the first time; the long rubber barrel packer has a longer effective packing surface and the packing success rate is improved.