DEVICE TO ISOLATE PROBLEMATIC ZONES BY PROFILE PACKER WITH CYLINDRICAL SECTIONS AT WELL DRILLING

FIELD: oil and gas industry.SUBSTANCE: device includes a profile packer with cylindrical sections and threaded connections, a shoe installed at its lower end with a back valve and a fishing head at the top, an expansion head made of several sections and consisting of a pipe string connection unit at...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	BAGNJUK SERGEJ LEONIDOVICH, KHAMIT'JANOV NIGAMAT'JAN KHAMITOVICH, VIL'DANOV NAIL' NAZYMOVICH, TIMKIN NAFIS JAGFAROVICH, GARAEV NAFIS ANISOVICH, ABDRAKHMANOV GABDRASHIT SULTANOVICH
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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