DETACHABLE HYDRAULIC PACKER FOR UNDERGROUND GAS-OIL STORAGE TANK Russian patent published in 2004 - IPC

Abstract RU 2235189 C1

FIELD: underground gas-oil storage tanks, particularly for packing annulus of technological well to protect main pipe casing.

SUBSTANCE: packer has body provided with collar, hydraulic cylinder with piston, anchoring means, fixing means and sealing means. Sealing means includes collar gaskets and shear ball valve arranged in lower body part. Two flange gaskets with pressure and support collars are located from both sides of collar gaskets. Additional shear ball valve is connected in series to lower body part.

EFFECT: increased packer reliability and service life.

1 dwg

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RU 2 235 189 C1

Authors

Pyshkov N.N.

Chumikov N.N.

Dates

2004-08-27—Published

2002-12-27—Filed