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1. 发明申请

WO2007120786B1 METHODS FOR DESIGNING AND FABRICATING EARTH-BORING ROTARY DRILL BITS HAVING PREDICTABLE WALK CHARACTERISTICS AND DRILL BITS CONFIGURED TO EXHIBIT PREDICTED WALK CHARACTERISTICS 审中-公开
标题翻译：用于设计和制造具有可预测的沃尔克特征的地下钻孔钻头的方法和配置为展示预测的沃尔克特性的钻头位置
公开(公告)号：WO2007120786B1
公开(公告)日：2007-12-21
申请号：PCT/US2007009060
申请日：2007-04-13
申请人： BAKER HUGHES INC , STAUFFER BRUCE , HEUSER WILLIAM , JACOBSEN JIM L
发明人： STAUFFER BRUCE , HEUSER WILLIAM , JACOBSEN JIM L
IPC分类号： E21B41/00 , E21B10/43 , E21B44/00 , E21B47/00
CPC分类号： E21B10/00
摘要： Walk characteristics of an earth-boring rotary drill bit may be predicted by measuring locations and orientations of cutting elements thereof and calculating the magnitude and direction of an imbalance force of the drill bit using the measurements obtained. The calculated imbalance force may be compared to the imbalance force of at least one other drill bit having a calculated imbalance force and observed walk characteristics. An earth-boring rotary drill bit may be designed by constructing a database including the magnitude and direction of a calculated imbalance force and observed walk characteristics for a number of drill bits. Desired walk characteristics are selected, the database is referenced, and the bit may be configured to exhibit an imbalance force selected to impart desired walk characteristics to the drill bit. Drill bits are configured to exhibit an imbalance force oriented in a predetermined direction relative to a blade of the drill bit. A system may be employed to monitor the imbalance force of an operating drill bit and to provide or implement desirable operational parameters to compensate for same.
摘要翻译：可以通过测量其切削元件的位置和取向并使用所获得的测量值来计算钻头的不平衡力的大小和方向来预测钻地旋转钻头的行走特性。计算的不平衡力可以与具有计算的不平衡力和观察到的行走特性的至少一个其他钻头的不平衡力进行比较。可以通过构造数据库来设计钻孔旋转钻头，所述数据库包括计算的不平衡力的大小和方向以及用于多个钻头的观察到的行走特性。选择期望的行走特征，参考数据库，并且该位可以被配置为表现出选择的不平衡力以将期望的行走特征赋予钻头。钻头被配置为表现出相对于钻头刀片沿预定方向定向的不平衡力。可以采用系统来监测操作钻头的不平衡力并提供或实现所需的操作参数以补偿它们。

2. 发明申请

WO2007120786A1 METHODS FOR DESIGNING AND FABRICATING EARTH-BORING ROTARY DRILL BITS HAVING PREDICTABLE WALK CHARACTERISTICS AND DRILL BITS CONFIGURED TO EXHIBIT PREDICTED WALK CHARACTERISTICS 审中-公开
标题翻译：用于设计和制造具有可预测行走特性的钻凿旋转钻头的方法以及配置用于显示预测行走特征的钻头
公开(公告)号：WO2007120786A1
公开(公告)日：2007-10-25
申请号：PCT/US2007/009060
申请日：2007-04-13
申请人： BAKER HUGHES INCORPORATED , STAUFFER, Bruce , HEUSER, William , JACOBSEN, Jim, L.
发明人： STAUFFER, Bruce , HEUSER, William , JACOBSEN, Jim, L.
IPC分类号： E21B41/00 , E21B44/00 , E21B47/00 , E21B10/43
CPC分类号： E21B10/00
摘要： Walk characteristics of an earth-boring rotary drill bit may be predicted by measuring locations and orientations of cutting elements thereof and calculating the magnitude and direction of an imbalance force of the drill bit using the measurements obtained. The calculated imbalance force may be compared to the imbalance force of at least one other drill bit having a calculated imbalance force and observed walk characteristics. An earth-boring rotary drill bit may be designed by constructing a database including the magnitude and direction of a calculated imbalance force and observed walk characteristics for a number of drill bits. Desired walk characteristics are selected, the database is referenced, and the bit may be configured to exhibit an imbalance force selected to impart desired walk characteristics to the drill bit. Drill bits are configured to exhibit an imbalance force oriented in a predetermined direction relative to a blade of the drill bit. A system may be employed to monitor the imbalance force of an operating drill bit and to provide or implement desirable operational parameters to compensate for same.
摘要翻译：可以通过测量其切削元件的位置和方向并且使用所获得的测量来计算钻头的不平衡力的大小和方向来预测钻地旋转钻头的行程特征。计算的不平衡力可以与具有计算的不平衡力和观察的步行特性的至少一个其他钻头的不平衡力相比较。可以通过构建数据库来设计钻地旋转钻头，所述数据库包括计算的不平衡力的大小和方向以及用于多个钻头的观察到的行走特征。选择期望的步行特性，数据库被参考，并且钻头可以被配置为展现被选择为将期望的步行特性赋予钻头的不平衡力。钻头构造成展现相对于钻头的刀片在预定方向上定向的不平衡力。可以采用一种系统来监测操作钻头的不平衡力并提供或实施期望的操作参数以对其进行补偿。

3. 发明申请

WO2007038208A1 EARTH BORING DRILL BITS WITH CASING COMPONENT DRILL OUT CAPABILITY, CUTTING ELEMENTS FOR SAME, AND METHODS OF USE 审中-公开
标题翻译：地面钻孔钻头，具有铸件组件钻孔能力，切割元件及其使用方法
公开(公告)号：WO2007038208A1
公开(公告)日：2007-04-05
申请号：PCT/US2006/036855
申请日：2006-09-20
申请人： BAKER HUGHES INCORPORATED , MCCLAIN, Eric, E. , THOMAS, John, C. , TYAGI, Sarvesh , OLDHAM, Jack, T. , CLARK, Lester , HEUSER, William
发明人： MCCLAIN, Eric, E. , THOMAS, John, C. , TYAGI, Sarvesh , OLDHAM, Jack, T. , CLARK, Lester , HEUSER, William
IPC分类号： E21B10/43 , E21B17/14 , E21B10/567
CPC分类号： E21B29/06 , E21B10/43 , E21B10/56 , E21B10/567 , E21B17/14
摘要： A drill bit (12) includes a bit body having a face on which two different types of cutting elements are disposed, the first type (32) being cutting elements suitable for drilling at least one subterranean formation and the second type (36) being cutting elements suitable for drilling through a casing bit disposed at an end of a casing or liner string and cementing equipment or other components, if such are disposed within the casing or liner string, as well as cement inside as well as exterior to the casing or liner string. The second type of cutting elements (36) exhibits a relatively greater exposure than the first type of cutting elements (32) , so as to engage the interior of the casing bit and, if present, cementing equipment components and cement to drill therethrough, after which the second type of cutting elements (36) quickly wears upon engagement with the subterranean formation material exterior to the casing bit, and the first type of cutting elements (32) continues to drill the subterranean formation.
摘要翻译：钻头（12）包括钻头体，所述钻头体具有两个不同类型的切削元件设置在其上的面，所述第一类型（32）是适于钻取至少一个地下地层的切割元件，并且所述第二类型（36）被切割适用于穿过设置在壳体或衬套柱的端部处的套管钻头和固井设备或其它部件（如果这样）设置在壳体或衬套柱内以及水泥内部以及壳体或衬套外部的元件的元件串。第二类型的切割元件（36）表现出比第一类型的切割元件（32）相对更大的曝光，以便接合套筒钻头的内部，并且如果存在，则粘合设备部件和水泥钻穿其中，之后所述第二类型的切割元件（36）在与所述套筒钻头外部与所述地层材料接合时快速磨损，并且所述第一类型的切割元件（32）继续钻入所述地层。

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