PLUGGING BAILER Russian patent published in 2003 - IPC

Abstract RU 2196872 C1

FIELD: oil-gas producing industry; applicable for installation of separating bridging plugs for isolation of producing horizons and sections of wellbore from one another. SUBSTANCE: plugging bailer includes body, pulling member, shear and sealing members, containing, sealing and locking units. Body has external annular protrusion. Containing unit consists of pipes. Sealing unit includes collar and conical-cylindrical plug. Locking unit has grabs and conical slips. Conical-cylindrical plug is connected with body by means of shear member. Plugging bailer has spring centralizer and pusher. Spring centralizers are installed on body for longitudinal motion and engageable through pusher with grabs and conical slips. Pusher is made with cylindrical hollow for said protrusion with shelf in upper part. EFFECT: improved design withstanding high pressure differentials, full guarantee of bailer installation in well preset interval. 2 cl, 1 dwg

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RU 2 196 872 C1

Authors

Gabdullin R.G.

Ibragimov N.G.

Zherebtsov E.P.

Strakhov D.V.

Osnos V.B.

Dates

2003-01-20—Published

2001-04-23—Filed