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公开(公告)号:EP0584330A1
公开(公告)日:1994-03-02
申请号:EP93905971.0
申请日:1993-02-16
发明人: LAY, Warren, T.
CPC分类号: E21B17/076 , E21B4/14 , E21B10/38
摘要: Un outil de forage (1) à percussion, actionné par un fluide comporte un ensemble palier réversible (4) et trépan (9) permettant de modifier le volume du fluide sortant du réservoir de refoulement, en le faisant passer d'une plus grande quantité pour un perçage profond à une plus petite quantité pour un perçage peu profond.
摘要翻译: 流体致动的冲击钻井工具(1)具有可逆的轴承组件(4)和钻头(9),用于通过将大量的 对于浅钻进行深钻加工的用量较小。
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公开(公告)号:EP0687340A1
公开(公告)日:1995-12-20
申请号:EP94907415.0
申请日:1994-02-03
发明人: FU, Chuen-Cheng , LAY, Warren, T.
摘要: A pressure sensitive valve (200) for a fluid-actuated percussive drill (10) includes passageways (44) for fluid flow to expose a valve surface to a burst of short-interval, high pressure fluid from a drive chamber (36) to cause early closing of the valve (200).
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公开(公告)号:EP0682737A1
公开(公告)日:1995-11-22
申请号:EP94907416.0
申请日:1994-02-03
发明人: LAY, Warren, T. , LYON, Leland, H.
IPC分类号: E21B4
CPC分类号: E21B4/14
摘要: A reversible casing (9) for a down-the-hole drill has a predetermined snap ring (50) groove length centered between the casing ends (11, 15), based upon the casing bore (42), the snap ring groove depth and the snap ring body length, whereby a snap ring (50) will be retained in the snap ring groove (72), while permitting lengthwise movement of the snap ring (50) during reverse orientation of the casing (19).
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公开(公告)号:EP0687340B1
公开(公告)日:2000-11-08
申请号:EP94907415.7
申请日:1994-02-03
发明人: FU, Chuen-Cheng , LAY, Warren, T.
IPC分类号: E21B4/00
摘要: A pressure sensitive valve (200) for a fluid-actuated percussive drill (10) includes passageways (44) for fluid flow to expose a valve surface to a burst of short-interval, high pressure fluid from a drive chamber (36) to cause early closing of the valve (200).
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公开(公告)号:EP0682737B1
公开(公告)日:2000-11-08
申请号:EP94907416.5
申请日:1994-02-03
发明人: LAY, Warren, T. , LYON, Leland, H.
CPC分类号: E21B4/14
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公开(公告)号:EP0584330B1
公开(公告)日:1996-05-15
申请号:EP93905971.3
申请日:1993-02-16
发明人: LAY, Warren, T.
IPC分类号: E21B4/14
CPC分类号: E21B17/076 , E21B4/14 , E21B10/38
摘要: A fluid-activated, percussive, down-the-hole drill (1) having a reversible bearing (4) and bit (9) combination for altering the volume of return reservoir exhaust fluid between a larger amount for deep hole drilling and a smaller amount for shallow hole drilling.
摘要翻译: 一种具有可逆轴承(4)和钻头(9)组合的流体活化的冲击式潜孔钻机(1),用于改变较大深度钻孔量和较小量之间的回流储存器排出流体的体积 用于浅孔钻探。
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