Polycentric reamer

Polycentric reamer

A polycentric reamer having a body thrust unit and reaming unit is especially useful for locally reaming a borehole beneath a casing string. By asymmetrically positioning a reaming unit within a body formed from non-coaxial mated cylinders, superior results are achieved. These results include minimi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GAVRILOV, YAROSLAW S, EDELMAN, TAKOV A, ALIKIN, RUDOLF S, MESSER, ALEXEY G, KRIVONENKOV, SERGEJ P, RAIHERT, LUDVIG A, SOROKIN, ABEKSANDR N
Format: Patent
Sprache:eng
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:A polycentric reamer having a body thrust unit and reaming unit is especially useful for locally reaming a borehole beneath a casing string. By asymmetrically positioning a reaming unit within a body formed from non-coaxial mated cylinders, superior results are achieved. These results include minimizing wear on the casing string.