发明名称 |
Drill bit |
摘要 |
A drill bit for drilling a well bore using solid material impactors comprising a nozzle and a cavity for accelerating the velocity of the solid material impactors and directing flow of the solid material impactors through the nozzle. The drill bit may also comprise a junk slot for return flow of the drilling fluid and solid material impactors.
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申请公布号 |
US2006027398(A1) |
申请公布日期 |
2006.02.09 |
申请号 |
US20040825338 |
申请日期 |
2004.04.15 |
申请人 |
PARTICLE DRILLING, INC. |
发明人 |
TIBBITTS GORDON A.;PADGETT PAUL O.;CURLETT HARRY B.;CURLETT SAMUEL R.;HARDER NATHAN J. |
分类号 |
E21B7/16;E21B10/42;E21B10/60 |
主分类号 |
E21B7/16 |
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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