SHARIFOV'S SUPPORT-MECHANICAL PACKER (VERSIONS) Russian patent published in 2009 - IPC E21B33/12 

FIELD: oil and gas production.

SUBSTANCE: group of inventions is related to procedure of hydrocarbons production and maintenance of bed pressure. Support-mechanical packer comprises shaft with thrust external collars and grooves for shear screws, which consists of two telescopically mutually connected upper and lower parts with the possibility of their axial displacement relative to each other, and equipped with sealing rings and ferrules, adapter, adjusting nut and fixator. In order to increase serviceability of packer, it is additionally equipped with mechanical anchoring device, which is installed freely under or above sealing ferrules and comprising the following mutually joined components: cone, flat plates and plate holder. In order to increase serviceability and functionality of packer it may be arranged with cable input in the form of sealing longitudinal dead slot on its shaft inside sealing ferrules.

EFFECT: invention objective is to improve reliability and functionality of support-mechanical packer operation.

4 cl, 10 dwg