Invention Grant
US07831419B2 PDC drill bit with cutter design optimized with dynamic centerline analysis having an angular separation in imbalance forces of 180 degrees for maximum time
有权
具有刀具设计的PDC钻头通过动态中心线分析进行优化，在最大时间内具有180度的不平衡力的角度间隔
- Patent Title: PDC drill bit with cutter design optimized with dynamic centerline analysis having an angular separation in imbalance forces of 180 degrees for maximum time
- Patent Title (中): 具有刀具设计的PDC钻头通过动态中心线分析进行优化，在最大时间内具有180度的不平衡力的角度间隔
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Application No.: US11041911Application Date: 2005-01-24
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Publication No.: US07831419B2Publication Date: 2010-11-09
- Inventor: Peter Thomas Cariveau , Bala Durairajan , Sujian Huang
- Applicant: Peter Thomas Cariveau , Bala Durairajan , Sujian Huang
- Applicant Address: US TX Houston
- Assignee: Smith International, Inc.
- Current Assignee: Smith International, Inc.
- Current Assignee Address: US TX Houston
- Agency: Osha Liang LLP
- Main IPC: G06G7/48
- IPC: G06G7/48 ; E21B10/00
Abstract:
A method for designing a fixed cutter drill bit, includes simulating the fixed cutter drill bit drilling in an earth formation, determining radial and circumferential components of imbalance forces on the drill bit and a Beta angle between the radial and circumferential components of the imbalance forces during a period of simulated drilling, and adjusting a value of at least one design parameter for the fixed cutter drill bit at least based upon the Beta angle. To facilitate drill bit design, the Beta angel can be displayed to a drill bit designer. To improve performance, the method can include repeating the simulating, determining, and adjusting to change a simulated performance of the fixed cutter drill bit. A drill bit may be made according to the design resulting from the method.
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