ECCENTRIC REAMER

drilling operations. SUBSTANCE: given eccentric reamer is designed to form hole larger than diameter of casing string or of drilled shaft through which tools are sunk to face. Reamer has body, reaming members falling outside of dimensions of drill bit. Specific feature of proposed reamer lies in dis...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	JAKOVENKO A.A, DORODNOV I.P, IPPOLITOV V.V, SHAMANOV S.A, VJAKHIREV V.I
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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