Wells – Above ground apparatus – With tube rotating means
Patent
1993-08-04
1995-01-24
Schoeppel, Roger J.
Wells
Above ground apparatus
With tube rotating means
166104, 1661177, 1662416, E21B 3304
Patent
active
053835190
ABSTRACT:
An apparatus for rotating a tubing string of a pumping wellhead is described which includes a housing having a first end, a second end, and an interior. The first end has a stationary external coupling communicating with the interior. The second end is adapted for attachment to a wellhead. A drive assembly is disposed in the interior. The drive assembly includes a rotatable tubular member having a first end and a second end. The first end of the tubular member is disposed within the interior of the housing in fluid communication with the stationary external coupling. The second end of the tubular member extends past the second end of the housing thereby providing a rotatable coupling engagable with a tubing string. The drive assembly rotates the tubular member. Bearings are disposed between the tubular member and the interior of the housing thereby facilitating rotation of the tubular member. Dynamic seals are disposed between the tubular member and the interior of the housing.
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Lacy, R. D., The Rotating Tubing Hanger System: A Unique New System, Technical Paper SPE-23977, presented 1992 SPE Permian Basin Oil and Gas Recovery Conference, Midland, Tex., Mar. 18-20, 1992.
Brochure, National Oilwell Canada Ltd., Variperm Packers.
Brochure, Salesbook, Toolmasters, Model S Dual String Anchor and Model T Rotating Sub.
Brochure, Rotating Production Systems (Canada) Inc., Production Rotating Systems.
Ring Curtis P.
Wright James A.
569,396 Alberta Ltd.
Lambert Anthony R.
Schoeppel Roger J.
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