DOWNHOLE INSTRUMENT CENTERING DEVICE

FIELD: well development survey, particularly downhole instruments used in cased wells. ^ SUBSTANCE: method involves coupling arch-shaped springs in pairs uniformly arranged along movable bush perimeter. Springs of each pair are connected to opposite movable bush ends and offset at least 600 mm one f...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SULEJMANOV MARAT AGZAMOVICH, BELOVA TAT'JANA SERGEEVNA
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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