ROCK DRILL CHARGE COVERING AND ROCK DRILL CHARGE

FIELD: oil and gas industry, particularly rock drills. ^ SUBSTANCE: charge comprises body with orifice for blast initiation, explosive arranged in the body and covering formed as shell. The shell is made of material having density exceeding 7000 kg/m3 and having at least one profiled surface. The pr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZONENKO SERGEJ IVANOVICH, SIDOROV ANDREJ VITAL'EVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	AMMUNITION BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS WEAPONS
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Beschreibung
Zusammenfassung:	FIELD: oil and gas industry, particularly rock drills. ^ SUBSTANCE: charge comprises body with orifice for blast initiation, explosive arranged in the body and covering formed as shell. The shell is made of material having density exceeding 7000 kg/m3 and having at least one profiled surface. The profile includes trihedral or hexahedral convex members. Distance between adjacent convex member centers is not less than 4 average covering thicknesses. Convex member heights do not exceed average covering thickness to provide cumulative effect. ^ EFFECT: increased oil output from wells. ^ 19 cl, 1 dwg, 11 ex