Drill bit and method for explosive drilling
专利汇可以提供Drill bit and method for explosive drilling专利检索，专利查询，专利分析的服务。并且THE PARTICULAR EMBODIMENT DESCRIBED HEREIN AS ILLUSTRATIVE OF ONE FORM OF THE INVENTION UTILIZES A DRILL BIT HAVING A FLUID EXIT FOR PASSING DRILLING FLUIDS FROM THE INTERIOR OF THE DRILL PIPE TO THE EXTERIOR OF THE DRILL BIT. THE SURFACE SURROUNDING THE EXIT IS FORMED IN THE SHAPE OF A PARABOLA. EXPLOSIVE CAPSULES ARE PLACED IN THE DRILLING FLUID STREAM AND THEN MOVED WITH THE DRILING FLUID THROUGH THE DRILL STEM AND OUT THE OPENING IN THE BIT FOR IMPACT WITH THE FORMATION, WHEREUPON THE EXPLOSIVE CAPSULE IS DETONATED. PRIMARY ENERGY IN THE FORM OF A SHAPED JET CHARGE IS DIRECTED INTO THE FORMATION TO PENETRATE THE BOTTOM OF THE BOREHOLE AND CAUSE FRACTURING OF FORMATION MATERIALS. IN ADDITION, UPWARDLY DIRECTED ENERGY FROM THE SHAPED EXPLOSIVE CHARGE IS REFLECTED FROM THE PARABOLICLIKE SURFACE OF THE DRILL BIT TO PROVIDE A SECONDARY ENERGY SOURCE DIRECTED AGAINST THE FORMATION AT THE BOTTOM OF THE BOREHOLE.，下面是Drill bit and method for explosive drilling专利的具体信息内容。
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