PACKER SEALING ELEMENT Russian patent published in 2013 - IPC E21B33/12 

FIELD: oil and gas industry.

SUBSTANCE: packer sealing element consists of flexible medium inside of which there is an elastic element. There is a spring along the end face inside the sealing element that is cured-on to the rubber massive along the whole surface of the spring wire in the place where cylindrical part passes into the conical part from load side. Spring can be heat-treated.

EFFECT: invention provides the creation of reliable structure of packer sealing element that excludes the possibility of rubber penetration into sealed gap, increase of packer sealing properties, packer operation reliability and life time due to excluding of sealing element destruction in the course packer extension-type supports shifting into transport position.

2 cl, 4 dwg