Dual diameter and rotating centralizer/sub

Details Dual diameter and rotating centralizer/sub Dual diameter and rotating centralizer/sub

2007-01-02

2007-01-02

Suchfield, George (Department: 3676)

Wells

Guide for device or conduit

Surrounding existing device or tubing

C166S241100, C166S242600

Reexamination Certificate

active

10719313

ABSTRACT:
A centralizer for maintaining stand-off and/or centralizing a tubular member inside a larger diameter tubular member, for instance, in a wellbore. The centralizer is provided with bow springs that compress to a minimal diameter around the outer diameter of the sub to which the centralizer is concentrically mounted when compressive force is applied to the bow springs to facilitate insertion of the centralizer into restricted openings and/or flow control or wellhead equipment. The minimal diameter of the centralizer is provided by mounting the bow springs to a reduced diameter portion of the collar that is mounted to the sub, and even greater reduction in diameter is achieved by mounting the bow springs in notches formed in the reduced diameter portion of the collar.

REFERENCES:
patent: 350655 (1886-10-01), Brooder
patent: 1314070 (1919-08-01), McKissick
patent: 1565518 (1925-12-01), Smyser
patent: 1767198 (1930-06-01), Baker
patent: 1775376 (1930-09-01), Steps et al.
patent: 1812945 (1931-07-01), Granger
patent: 1998833 (1935-04-01), Crowell
patent: 2058310 (1936-10-01), Hartman et al.
patent: 2089553 (1937-08-01), Hartman et al.
patent: 2258052 (1941-10-01), Hall
patent: 2311768 (1943-02-01), McCray
patent: 2546582 (1951-03-01), Baker
patent: 2605844 (1952-08-01), Clark, Jr.
patent: 2628682 (1953-02-01), Wright
patent: 2640544 (1953-06-01), Baker
patent: 2665762 (1954-01-01), Althouse, Jr.
patent: 2666241 (1954-01-01), Hall, Sr.
patent: 2718266 (1955-09-01), Berry, et al.
patent: 2824613 (1958-02-01), Baker et al.
patent: 2828824 (1958-04-01), Comstock
patent: 2845128 (1958-07-01), Clark, Jr. et al.
patent: 2898136 (1959-08-01), Hall, Sr. et al.
patent: 2962313 (1960-11-01), Conrad
patent: 2986471 (1961-05-01), Baker
patent: 2998848 (1961-09-01), Wright et al.
patent: 3065005 (1962-11-01), Hall, Sr., et al.
patent: 3072195 (1963-01-01), Kluck
patent: 3128827 (1964-04-01), Kluck
patent: 3172475 (1965-03-01), Moore
patent: 3196951 (1965-07-01), Saurenman
patent: 3196952 (1965-07-01), Solum
patent: 3200884 (1965-08-01), Solum
patent: 3235295 (1966-02-01), Solum
patent: 3237696 (1966-03-01), Hall
patent: 3289768 (1966-12-01), Solum
patent: 3316951 (1967-05-01), Jacobson et al.
patent: 3360846 (1968-01-01), Schellstede et al.
patent: 3556042 (1971-01-01), Laughlin
patent: 3578084 (1971-05-01), Bombardieri et al.
patent: 3614139 (1971-10-01), Harrison
patent: 3978924 (1976-09-01), Roesner
patent: 4011907 (1977-03-01), Clay
patent: 4021083 (1977-05-01), Anderson
patent: 4031969 (1977-06-01), Cullen et al.
patent: 4039026 (1977-08-01), Yonker
patent: 4042022 (1977-08-01), Wills et al.
patent: 4077470 (1978-03-01), Dane
patent: 4088186 (1978-05-01), Callihan et al.
patent: 4105262 (1978-08-01), Richey
patent: 4133470 (1979-01-01), Trail
patent: 4363360 (1982-12-01), Richey
patent: 4520869 (1985-06-01), Svenson
patent: 4523640 (1985-06-01), Wilson et al.
patent: 4531582 (1985-07-01), Muse et al.
patent: 4566317 (1986-01-01), Shakra
patent: 4630690 (1986-12-01), Beasley et al.
patent: 4651823 (1987-03-01), Spikes
patent: 4688636 (1987-08-01), Hennessey
patent: 4739842 (1988-04-01), Kruger et al.
patent: 4787458 (1988-11-01), Langer
patent: 4794986 (1989-01-01), Langer
patent: 4880066 (1989-11-01), Steiginga et al.
patent: 4984633 (1991-01-01), Langer et al.
patent: 4995456 (1991-02-01), Cornette et al.
patent: 5095981 (1992-03-01), Mikolajczyk
patent: H1192 (1993-06-01), Keller
patent: 5238062 (1993-08-01), Reinholdt
patent: 5261488 (1993-11-01), Gullet et al.
patent: 5339896 (1994-08-01), Hart et al.
patent: 5575333 (1996-11-01), Lirette et al.
patent: 6032748 (2000-03-01), DeBray et al.
patent: 6209638 (2001-04-01), Mikolajczyk
patent: 6457519 (2002-10-01), Buytaert
patent: 6484803 (2002-11-01), Gremillion
patent: 6679325 (2004-01-01), Buytaert
patent: 89 03 038.9 (1989-05-01), None
patent: 00143219 (1985-06-01), None
patent: 664905 (1952-01-01), None
patent: 682292 (1952-11-01), None
patent: 682489 (1952-11-01), None
patent: 689807 (1953-04-01), None
patent: 698464 (1953-10-01), None
patent: 2249333 (1992-05-01), None
patent: 2366580 (2002-03-01), None
Patent Litigation:Weatherford International, Inc. and Weatherford/Lamb, Inc., Plaintiffs, v.Casetech International, Inc., Defendant. Civil Action No. H-03-CV-05383, In the United States District Court For the Southern District of Texas, Houston Division.
Ray Oil Tool Company—The Centralization Specialists—rayoiltool.com—one page product brochure regarding Bi-Centered Float Shoes, Collars & Inline Tyupe Centralizers printed from this website on Sep. 13, 2004, but same material was printed previously from website on Feb. 25, 2003. Date of origin of this material and webiste is not known.
Patent Litigation:Weatherford International, Inc. and Weatherford / Lamb, Inc., Plaintiffs, v. Casetech International, Inc., Defendant. Civil Action No. H-03-CV-05383, In the United States District Court For the Southern District of Texas, Houston Division. “Claim Construction Memorandum and Order”, Aug. 12, 2005, 10 pages.
Composite Catalog of Oil Field Equipment & Services, 26thRevision, 1964-65, vol. 1, Published by World Oil, p. 460: Baker Model “B” Hammer-Lok Stop Rings. (2 pages).
Kinzel, Holger and Calderoni, Angelo, “Field Test of a Downhole-Activated Centralizer To Reduce Casing Drag”, Society of Petroleum Engineers, 1995 (3 pages).
Kinzel, Holger and Martens, James G., “The Application of New Centralizer Types to Improve Zone Isolation in Horizontal Wells”, SPE 50438, Society of Petroleum Engineers, 1998, pp. 673-682.
Information Disclosure Statement filed on Apr. 6, 2006 in Ex Parte Re-exam of Lirette, U.S. Appl. No. 5,575,333 (Control No. 5,575,333 (control No. 9/077,870 (27 pgs).
Halliburton's Patent Opinion on related U.S. Appl. No. 10/302,641 w/exhibits dated May 15, 2006 (62pgs).
Baker, Ron, A Primer of Oilwell Drilling, pp. 119-146, 137 (6thEd. 2001).
Ray Oil Tool Company - The Centralization Specialists - rayoiltool.com - one page product brochure regarding Bi-Centered Float Shoes, Collars & Inline Type Centralizers printed from this website on Sep. 13, 2004, but same material was printed previously from website on Feb.25, 2003. Date of origin of this material and website is not known.

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