ANCHOR PACKER

FIELD: underground well repair, particularly equipment for sealing or packing boreholes or wells, namely devices for annulus separation during bottomhole zone waterproofing, hydraulic reservoir fracturing and other operations to be executed in well. ^ SUBSTANCE: device comprises body, anchoring unit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BUDNIKOV VLADIMIR FEDOROVICH, PUT'KO JULIAN ANDREEVICH, PUSHKIN SERGEJ VIKTOROVICH, JUR'EV VALENTIN ANTONOVICH, MARKOV ALEKSANDR VASIL'EVICH, MANUKOV RAFAEHL' SERGEEVICH, BASARYGIN JURIJ MIKHAJLOVICH, KLIMENKO DMITRIJ NIKOLAEVICH, TSAR'KOVA LJUDMILA MIKHAJLOVNA
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	FIELD: underground well repair, particularly equipment for sealing or packing boreholes or wells, namely devices for annulus separation during bottomhole zone waterproofing, hydraulic reservoir fracturing and other operations to be executed in well. ^ SUBSTANCE: device comprises body, anchoring unit including cone and slips, sealing member, upper and lower movable and lower fixed stops and drive. Anchoring unit is arranged on the body under sealing member. Drive is made as piston installed inside the body and provided with levers and pressing members made as racks. The racks may move in axial and radial directions. Toothed rings mating the racks are formed on outer surface of the body. Inner body surface is provided with extension to limit piston stroke. Upper body part has shear bush for drop ball receiving. Anchoring unit is located over fixed support. Slides have inclined teeth. Upper parts of the teeth are directed opposite to lower parts thereof. ^ EFFECT: increased efficiency. ^ 2 dwg