PROCESS OF HOLE DRILLING IN SOFT ROCK

hole drilling in soft rock by auger. SUBSTANCE: process includes rotation of auger with cutting tool and its forced feed into bottom hole with subsequent control over rate of feed of auger in process of drilling by change of operational parameters. Drilling is conducted with specified rate of feed V...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ISAKOV V.S, CHUKHRJAEV N.P, SHAMSHIN V.N, CHERNOBROVKIN G.JA, ARTEMOVA V.I, USTINOV A.A, CHUKHRJAEVA N.A
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:	hole drilling in soft rock by auger. SUBSTANCE: process includes rotation of auger with cutting tool and its forced feed into bottom hole with subsequent control over rate of feed of auger in process of drilling by change of operational parameters. Drilling is conducted with specified rate of feed Vf m/s. Value of rate of feed is found prior to start of drilling operation by formula, given in the description of invention. EFFECT: enhanced efficiency of drilling of holes in soft rock thanks to prevention of jamming of auger.