发明名称 |
IMPREGNATED BIT WITH CHANGEABLE HYDRAULIC NOZZLES. |
摘要 |
<p>A diamond impregnated bit crown has blades formed thereon. Flow channels are formed between the blades, the flow channels having inner and outer ends and extending outward to a gage surface of the crown. At least some of the flow channels have an enlarged width area that has a greater width than a portion of the channel immediately outward from the enlarged width area. A nozzle is releasably secured in each of the enlarged width areas for discharging drilling fluid.</p> |
申请公布号 |
MX2009006124(A) |
申请公布日期 |
2009.07.17 |
申请号 |
MX20090006124 |
申请日期 |
2007.12.07 |
申请人 |
BAKER HUGHES INCORPORATED. |
发明人 |
VOLKER RICHERT |
分类号 |
E21B10/42;E21B10/60;E21B10/61 |
主分类号 |
E21B10/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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