FIELD: mining, oil and gas industry, particularly well drilling.
SUBSTANCE: method involves well drilling with the use of accumulation operation. Space free of combustible or explosive mix is created inside combustion chamber of drilling bit before combustible or explosive mix ignition. The space is created by cyclic or continuous injection of fuel and oxidizer or explosive composition components in the chamber at an angle to combustion chamber axis. The space may be also formed by alternate delivery and ignition of explosive charges. The explosive charges are provided with recesses.
EFFECT: increased speed and simplicity and reduced drilling costs.
2 dwg
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RU2691182C1 |
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RU2691282C1 |
