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Magnetized casing string tubulars

Stenerson, Kenneth ; Ceh, Leon ; et al.
2010
Online Patent

Titel:
Magnetized casing string tubulars
Autor/in / Beteiligte Person: Stenerson, Kenneth ; Ceh, Leon ; McElhinney, Graham A.
Link:
Veröffentlichung: 2010
Medientyp: Patent
Sonstiges:
  • Nachgewiesen in: USPTO Patent Grants
  • Sprachen: English
  • Patent Number: 7,679,481
  • Publication Date: March 16, 2010
  • Appl. No: 12/422355
  • Application Filed: April 13, 2009
  • Assignees: Smith International, Inc. (Houston, TX, US)
  • Claim: 1. A stack of magnetized casing tubulars, the stack comprising: a plurality of magnetized wellbore tubulars, each of the magnetized wellbore tubulars including a plurality of north and south magnetic poles imparted to a corresponding plurality of longitudinal positions along the tubulars, the magnetic poles imparted to substantially the same longitudinal positions on each of the tubulars; and the plurality of wellbore tubulars arranged into a stack having at least two rows and at least two columns, the wellbore tubulars stacked side by side and atop one another such that the magnetic poles on one tubular are radially aligned with magnetic poles of an opposite polarity on adjacent tubulars wherein the wellbore tubulars are arranged in a substantially rectangular grid with each interior wellbore tubular having four nearest neighbors.
  • Claim: 2. The stack of claim 1 , wherein each of the magnetized wellbore tubulars comprises at least one pair of opposing magnetic poles.
  • Claim: 3. The stack of claim 1 , comprising at least 20 wellbore tubulars.
  • Claim: 4. A method for stacking magnetized wellbore tubulars, the method comprising: (a) receiving a plurality of magnetized wellbore tubulars, each of the magnetized wellbore tubulars including a plurality of north and south magnetic poles imparted thereto, the magnetic poles imparted to substantially the same longitudinal positions on each of the tubulars; and (b) arranging the wellbore tubulars in a stack having at least two rows and at least two columns, the wellbore tubulars stacked side by side and atop one another such that the magnetic poles on one tubular are radially aligned with magnetic poles of an opposite polarity on adjacent tubulars wherein the wellbore tubulars are arranged in a substantially rectangular grid with each interior wellbore tubular having four nearest neighbors.
  • Claim: 5. The method of claim 4 , wherein each of the magnetized wellbore tubulars comprises at least one pair of opposing magnetic poles.
  • Claim: 6. The method of claim 4 , wherein the wellbore tubulars are stacked in (b) on a truck bed and the method further comprises: (c) transporting said stack of magnetized wellbore tubulars to a drilling site.
  • Current U.S. Class: 335/284
  • Patent References Cited: 2980850 April 1961 Cochran ; 3117065 January 1964 Wootten ; 3725777 April 1973 Robinson et al. ; 3942147 March 1976 Josephson ; 4072200 February 1978 Morris et al. ; 4458767 July 1984 Hoehn, Jr. ; 4465140 August 1984 Hoehn, Jr. ; 4672345 June 1987 Littwin et al. ; 4730230 March 1988 Helfrick ; 4743849 May 1988 Novikov ; 4758813 July 1988 Holsinger et al. ; 4859976 August 1989 Leupold ; 4931760 June 1990 Yamaguchi et al. ; 4946590 August 1990 Hertzog ; 5014028 May 1991 Leupold ; 5025240 June 1991 La Croix ; 5107238 April 1992 Leupold ; 5126720 June 1992 Zhou et al. ; 5319335 June 1994 Huang et al. ; 5424703 June 1995 Blume, Jr. ; 5428332 June 1995 Srail et al. ; 5485089 January 1996 Kuckes ; 5512830 April 1996 Kuckes ; 5541517 July 1996 Hartmann et al. ; 5589775 December 1996 Kuckes ; 5657826 August 1997 Kuckes ; 5659280 August 1997 Lee et al. ; 5675488 October 1997 McElhinney ; 5923170 July 1999 Kuckes ; 6060970 May 2000 Bell ; 6297719 October 2001 Miller ; 6310532 October 2001 Santa Cruz et al. ; 6369679 April 2002 Cloutier et al. ; 6670806 December 2003 Wendt et al. ; 6698516 March 2004 Van Steenwyk et al. ; 6744342 June 2004 Decristofaro et al. ; 6991045 January 2006 Vinegar et al. ; 2004/0051610 March 2004 Sajan ; 2004/0263300 December 2004 Maurer et al. ; 2006/0131013 June 2006 McElhinney ; 0 301 671 February 1989 ; 60086809 May 1985 ; 03094407 April 1991 ; WO95/19490 July 1995
  • Other References: A. G. Nekut, A. F. Kuckes, and R. G. Pitzer, “Rotating Magnet Ranging—a new drilling guidance technology,” 8th One Day Conference on Horizontal Well Technology, Canadian Sections SPE/Petroleum Society, Nov. 7, 2001. cited by other ; W-D Coils brochure by Western Instruments, published Mar. 2001: http://www.westerninstruments.com/portableMPI/coils/WD—COI—1.jpg, http://www.westerninstruments.com/portableMPI/coils/WD—COI—2.gif; and http://www.westerninstruments.com/portableMPI/coils/WD—COI—3.gif. cited by other ; J.I. de Lange and T.J. Darling, “Improved detectability of blowing wells,” SPE Drilling Engineering, Mar. 1990. cited by other ; T.L. Grills, “Magnetic ranging technologies for drilling steam assisted gravity drainage well pairs and unique well geometries—A comparison of Technologies,” SPE/Petroleum Society of CIM/CHOA 79005, 2002. cited by other
  • Assistant Examiner: Musleh, Mohamad A
  • Primary Examiner: Enad, Elvin G

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