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Publication numberWO2004094768 A3
Publication typeApplication
Application numberPCT/US2004/012439
Publication date28 May 2009
Filing date22 Apr 2004
Priority date23 Apr 2003
Also published asUS20040221985, WO2004094768A2
Publication numberPCT/2004/12439, PCT/US/2004/012439, PCT/US/2004/12439, PCT/US/4/012439, PCT/US/4/12439, PCT/US2004/012439, PCT/US2004/12439, PCT/US2004012439, PCT/US200412439, PCT/US4/012439, PCT/US4/12439, PCT/US4012439, PCT/US412439, WO 2004/094768 A3, WO 2004094768 A3, WO 2004094768A3, WO-A3-2004094768, WO2004/094768A3, WO2004094768 A3, WO2004094768A3
InventorsTom H Hill, Sean E Ellis, Nicholas M Reynolds, Nanjiu Zheng
ApplicantTh Hill Associates Inc, Tom H Hill, Sean E Ellis, Nicholas M Reynolds, Nanjiu Zheng
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Drill string design methodology for mitigating fatigue failure
WO 2004094768 A3
Abstract
A drill string design methodology which utilizes a 'comparative approach' in the selection of drill string components The comparative approach in accordance with the present invention can lead to dramatic reductions in fatigue-related problems In accordance with one aspect of the invention, a method is provided for establishing objective criteria for evaluating individual components of well construction equipment to determine the preferred component or collection of components to be used from the selection of components available [Fig 1, item 12] A plurality of quantifiable design parameters relevant to the issues of fatigue damage and failure of drill string components are defined, and an assessment of each of these parameters is made for two or more candidate components being considered for inclusion in the drill string [item 16] A comparison is then made betrween the candidate compnent's ratings, and a decision to include or exclude a candidate component is made based upon the results of such comparison
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US4691791 *16 Aug 19848 Sep 1987VallourecKnurled drill stem
US4965937 *30 Sep 198830 Oct 1990Hill Tom HTool joint gauge
US6012744 *1 May 199811 Jan 2000Grant Prideco, Inc.Heavy weight drill pipe
US6318480 *15 Dec 199920 Nov 2001Atlantic Richfield CompanyDrilling of laterals from a wellbore
Non-Patent Citations
Reference
1 *"Proceedings of the Conference on Visualization", October 2002, article EVANS ET AL.: "F. Future Trends in Oil and Gas Visualization"
2 *SHAPIRO ET AL.: "H.D. Microcomputer Technology for Drilling", PROCEEDINGS OF THE 1986 WORKSHOP ON APPLIED COMPUTING, October 1986 (1986-10-01), pages 13 - 20
3 *SHEPARD, J.S.: "Drill Pipe Management Extends Drillstring Life", OIL & GAS JOURNAL, vol. 89, no. 43, October 1991 (1991-10-01), pages 46 - 51, XP000213748
4 *WU, J.: "Model Predicts Drill Pipe Fatigue in Horizontal Wells", OIL & GAS JOURNAL, vol. 95, no. 5, February 1997 (1997-02-01), pages 47 - 52, XP000690298
Classifications
International ClassificationG06F17/50, E21B, E21B19/00, E21B44/00, G06F17/10
Cooperative ClassificationE21B44/00
European ClassificationE21B44/00
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