Wells – Guide for device or conduit – On sucker or pump rod
Patent
1985-08-16
1987-04-21
Leppink, James A.
Wells
Guide for device or conduit
On sucker or pump rod
175325, E21B 1710
Patent
active
046588965
ABSTRACT:
A centralizer apparatus having turbolizer protuberances includes groups of openings for receiving set screws to define a plurality of circumferential and longitudinal points of engagement between the centralizer and a tubular string to which it is attached. Associated with the centralizer is a bonding layer of adhesive material, which is injected through one of the openings while the centralizer is rotated relative to the tubular string to obtain a rigid bond between an outer surface of the tubular string and a majority of the inner surface of the centralizer. The bond can be broken by the external application of heat so that, after also loosening the screws, the centralizer can be removed from the tubular string.
REFERENCES:
patent: 2059439 (1953-11-01), Baker
patent: 2973996 (1961-03-01), Self
patent: 3072195 (1963-01-01), Kluck
patent: 3360846 (1968-01-01), Schellstede et al.
patent: 3818999 (1974-06-01), Garrett
patent: 4028796 (1977-06-01), Bergstrom
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Publication of Halliburton Oil Well Cementing Co. entitled "Co-Axial Spiral" (ref. A).
Publication of Houston Pipe Appliance Company entitled "Hall's Spiral Casing Guide" (ref. B).
Publication of Larkin Packer Company, Inc., (ref. C).
Publication of Petroleum Equipment Company, Ltd., Disclosing "Pecol Stop Rings" (ref. D).
Publication of GEMOCO disclosing use of Set Screws (ref. E).
Publication of Petroleum Equipment Company, Ltd. (ref. F).
Publication of Regal Oil Field Products (ref. G).
Publication of B&W, Incorporated (ref. H).
Publication of Weatherford Cememtation Equipment (ref. I).
Publication of SMFI (Ref. J).
Publication of Regan Forge & Engineering Company (ref. K).
Publication of Petroleum Equipment Co. Ltd. (ref. L).
Publication of Petroleum Equipment Co. Ltd. (ref. M).
Publication of Petroleum Equipment Co. Ltd. (ref. N).
Publication of SMFI (ref. O).
Publication of SMFI (ref. P).
Leppink James A.
Neuder William P.
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