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11. 发明申请

WO2002038916A3 AN APPARATUS AND METHOD FOR DETERMINING DOWNHOLE BIT FAILURE 审中-公开
公开(公告)号：WO2002038916A3
公开(公告)日：2002-05-16
申请号：PCT/US2001/047614
申请日：2001-11-07
申请人： HALLIBURTON ENERGY SERVICES, INC. , SCHULTZ, Roger, L. , DE JESUS, Orlando , OSBORNE, Andrew, J., Jr.
发明人： SCHULTZ, Roger, L. , DE JESUS, Orlando , OSBORNE, Andrew, J., Jr.
IPC分类号： G01N29/24
摘要： An apparatus and method for monitoring and reporting downhole bit (108) failure. Sensors (106) are located on a sub assembly (104) (which is separate from the drill bit (108) itself but located above it on the drill string (102)). Data from the sensors (106) are collected in blocks, then analyzed in the frequency domain. The frequency domain is divided into multiple bands, and the signal power in each band is compared to that of another band to produce a ratio of powers. When a bit (108) is operating at normal condition, most of the spectral energy of the bit vibration is found in the lowest frequency band. As a bearing starts to fail, it produces a greater level of vibration in the higher frequency bands. This change in ratios is used to determine probable bit (108) failure.

12. 发明申请

WO0238914A2 SYSTEM AND METHOD FOR SIGNALLING DOWNHOLE CONDITIONS TO SURFACE 审中-公开
标题翻译：用于信号化表面的井下条件的系统和方法
公开(公告)号：WO0238914A2
公开(公告)日：2002-05-16
申请号：PCT/US0147281
申请日：2001-11-07
申请人： HALLIBURTON ENERGY SERV INC , SCHULTZ ROGER L , JESUS ORLANDO DE , OSBORNE ANDREW J JR
发明人： SCHULTZ ROGER L , DE JESUS ORLANDO , OSBORNE ANDREW J JR
IPC分类号： E21B12/02 , E21B28/00 , E21B41/00 , E21B44/00 , E21B47/18 , E21F
CPC分类号： E21B44/00 , E21B12/02 , E21B41/0085 , E21B47/18 , E21B47/185 , E21B2041/0028
摘要： A method and apparatus is described for signalling the surface operator about downhole conditions. Sensors located downhole collect data while drilling and the data is processed to determine bit failure, for example. When the sensor data indicates a failure, the pressure of drilling mud is varied using a valve on the downhole unit, and this pressure variance is indicated by a pressure gauge visible to the operator. This pressure change tells the operator a failure has been indicated.
摘要翻译：描述了一种方法和装置，用于向地面操作者发出关于井下条件的信号。位于井下的传感器在钻井时收集数据，例如处理数据以确定位故障。当传感器数据指示故障时，钻井泥浆的压力可以使用井下单元上的阀而改变，并且该压力变化由操作者可见的压力表示。这种压力变化告诉操作者已经指出了故障。

13. 发明申请

WO2010017460A1 EARTH BORING CUTTER EMPLOYING HELICAL TEETH 审中-公开
标题翻译：使用螺丝钉的地板切割机
公开(公告)号：WO2010017460A1
公开(公告)日：2010-02-11
申请号：PCT/US2009/053119
申请日：2009-08-07
申请人： ATLAS COPCO SECOROC LLC , OSBORNE, Andrew, J., Jr.
发明人： OSBORNE, Andrew, J., Jr.
IPC分类号： E21B10/16
CPC分类号： E21B10/16 , Y10T407/1954
摘要： An earth bit includes an earth bit body (151) and a lug (162) and cutting cone (100) carried by the earth bit body, wherein the cutting cone is rotatably mounted to the lug. A plurality of cutters (120, 130) are carried by the earth bit body, wherein the cutters include a cutter body (101) and a plurality of curved teeth (113) extending between opposed ends of the cutter body. The curved teeth are positioned so that one end of a tooth overlaps an opposed end of an adjacent tooth. The curved teeth of a first cutter extend in a direction around its corresponding cutter body and the curved teeth of a second cutter extend in an opposed direction around its corresponding cutter body.
摘要翻译：地球钻头包括地球钻头体（151）和由钻头体承载的凸耳（162）和切削锥体（100），其中切割锥体可旋转地安装到凸耳上。多个切割器（120,130）由地钻头体承载，其中切割器包括切割器主体（101）和在切割器主体的相对端之间延伸的多个弯曲齿（113）。弯曲的齿被定位成使得齿的一端与相邻齿的相对端重叠。第一切割器的弯曲齿沿着其对应的切割器主体的方向延伸，并且第二切割器的弯曲齿围绕其对应的切割器主体沿相对的方向延伸。

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