LIFTING JACK PACKER Russian patent published in 2003 - IPC

Abstract RU 2206710 C2

FIELD: mining industry; applicable in shutoff of formation fluids show in well construction. SUBSTANCE: lifting jack packer consists of body, rubber member arranged on body. It is provided with pushing piston with slips entering recesses of branch pipe installed in casing string. Design sizes of lifting jack packer are determined by formulas depending on process factors and well design. EFFECT: provided conditions for performance of process of shutoff of formation fluid show irrespective of drilling tool weight. 2 cl, 1 dwg

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RU 2 206 710 C2

Authors

Shakhmaev Z.M.

Rakhmatullin V.R.

Semenov N.Ja.

Tajgin E.V.

Dates

2003-06-20—Published

2001-04-12—Filed