Source: http://www.google.com/patents/US7831419?dq=6,064,942
Timestamp: 2015-04-28 07:06:04
Document Index: 100041667

Matched Legal Cases: ['Application No. 2', 'Application No. 2', 'art 2', 'art 2', 'art 1', 'art 1', 'Application No. 2']

Patent US7831419 - PDC drill bit with cutter design optimized with dynamic centerline analysis ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA 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...http://www.google.com/patents/US7831419?utm_source=gb-gplus-sharePatent US7831419 - PDC drill bit with cutter design optimized with dynamic centerline analysis having an angular separation in imbalance forces of 180 degrees for maximum timeAdvanced Patent SearchPublication numberUS7831419 B2Publication typeGrantApplication numberUS 11/041,911Publication dateNov 9, 2010Filing dateJan 24, 2005Priority dateJan 24, 2005Fee statusPaidAlso published asCA2532753A1, CA2532753C, CA2738687A1, US20060167668, US20060167669, US20140095134Publication number041911, 11041911, US 7831419 B2, US 7831419B2, US-B2-7831419, US7831419 B2, US7831419B2InventorsPeter Thomas Cariveau, Bala Durairajan, Sujian HuangOriginal AssigneeSmith International, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (62), Non-Patent Citations (42), Referenced by (5), Classifications (6), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetPDC drill bit with cutter design optimized with dynamic centerline analysis having an angular separation in imbalance forces of 180 degrees for maximum time
This is an application for patent and is related to co-pending and co-owned U.S. patent application entitled �Methods For Designing Fixed Cutter Bits and Bits Made Using Such Methods� (U.S. patent application Ser. No. 10/888,523) filed on Jul. 9, 2004, U.S. patent application entitled �Methods For Modeling, Displaying, Designing, And Optimizing Fixed Cutter Bits (U.S. patent application Ser. No. 10/888,358) filed on Jul. 9, 2004, U.S. patent application entitled �Methods for Modeling Wear of Fixed Cutter Bits and for Designing and Optimizing Fixed Cutter Bits,� (U.S. patent application Ser. No. 10/888,354) filed on Jul. 9, 2004, and U.S. patent application entitled �Methods For Modeling, Designing, and Optimizing Drilling Tool Assemblies,� (U.S. patent application Ser. No. 10/888,446), filed on Jul. 9, 2004, and U.S. patent application entitled �PDC Drill Bit With Cutter Design Optimized With Dynamic Centerline Analysis And Dynamic Centerline Trajectory,� (U.S. patent application Ser. No. 11/041,910) filed concurrently herewith, all of which are expressly incorporated by reference in their entireties.
As shown in FIG. 5A-B, once input data 200 are selected, determined, or otherwise provided, a two-part mechanics analysis model of the drilling tool assembly is constructed 210 and used to determine the initial static state 212 of the drilling tool assembly in the wellbore. The first part of the mechanics analysis model construction 210 takes into consideration the overall structure of the drilling tool assembly, with the drill bit being only generally represented. In this embodiment, a finite element method is used (generally described at 212) wherein an arbitrary initial state (such as hanging in the vertical mode free of bending stresses) is defined for the drilling tool assembly as a reference and the drilling tool assembly is divided into N elements of specified element dimensions (i.e., meshed). The static load vector for each element due to gravity is calculated. Then, element stiffness matrices are constructed based on the material properties, element length, and cross sectional geometrical properties of drilling tool assembly components provided as input for the entire drilling tool assembly (wherein the drill bit is generally represented by a single node). Similarly, element mass matrices are constructed by determining the mass of each element (based on material properties, etc.) for the entire drilling tool assembly 214. Additionally, element damping matrices can be constructed (based on experimental data, approximation, or other method) for the entire drilling tool assembly 216. Methods for dividing a system into finite elements and constructing corresponding stiffness, mass, and damping matrices are known in the art and thus are not explained in detail here. Examples of such methods are shown, for example, in �Finite Elements for Analysis and Design� by J. E. Akin (Academic Press, 1994).
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Chen, et al., presented Sep. 30-Oct. 3, 2001 (11 pages).39Translation of Description of Invention No. 933932 dated Jun. 7, 1982.40U.S. Office Action dated Aug. 3, 2007, for corresponding U.S. Appl. No. 11/041,910.41U.S. Office Action dated Jun. 23, 2008 for related U.S. Appl. No. 11/041,910, (15 pages).42U.S. Office Action for related U.S. Appl. No. 11/041,910, dated Nov. 21, 2008, (14 pages).Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8774948 *Mar 26, 2010Jul 8, 2014Wilsun XuOperation and construction of electric power consuming facilities using facility modelsUS8818779 *Dec 21, 2010Aug 26, 2014Baker Hughes IncorporatedSystem and methods for real-time wellbore stability serviceUS20100262310 *Mar 26, 2010Oct 14, 2010Wilsun XuOperation and construction of electric power consuming facilities using facility modelsUS20110153296 *Dec 21, 2010Jun 23, 2011Baker Hughes IncorporatedSystem and methods for real-time wellbore stability serviceUS20120118642 *Jan 24, 2012May 17, 2012Baker Hughes IncorporatedMethods of making earth-boring tools and methods of drilling with earth-boring tools* Cited by examinerClassifications U.S. Classification703/7, 175/336International ClassificationG06G7/48, E21B10/00Cooperative ClassificationE21B10/00European ClassificationE21B10/00Legal EventsDateCodeEventDescriptionApr 9, 2014FPAYFee paymentYear of fee payment: 4Jun 2, 2005ASAssignmentOwner name: SMITH INTERNATIONAL, INC., TEXASFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CARIVEAU, PETER THOMAS;DURAIRAJAN, BALA;HUANG, SUJIAN;REEL/FRAME:016606/0823;SIGNING DATES FROM 20050428 TO 20050430RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services