E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 21/01 (2006.01) E21B 7/00 (2006.01) E21B 21/06 (2006.01)
Patent
CA 2717774
An apparatus to lift an oilfield machine includes at least one lifting bellows, an alignment assembly extending between at least one lifting bellows and an adapter plate of the oilfield machine, the alignment assembly comprising an inner cylinder to reciprocate within a sleeve of the oilfield machine, and the alignment assembly comprising a top plate at an upper end of the inner cylinder, the top plate configured to transfer forces from the at least one lifting bellows and the inner cylinder to the adapter plate, wherein the sleeve is configured to restrict the inner cylinder to a substantially linear displacements therethrough.
Linvention concerne un appareil pour élever une machine de champ pétrolifère comprenant au moins un soufflet délévation, un ensemble dalignement sétendant entre au moins un soufflet délévation et une plaque dadaptateur de la machine de champ pétrolifère, lensemble dalignement comprenant un cylindre interne destiné à effectuer un va-et-vient dans un manchon de la machine de champ pétrolifère, et lensemble dalignement comprenant une plaque supérieure au niveau dune extrémité supérieure du cylindre interne, la plaque supérieure étant configurée pour transférer des forces provenant du ou des soufflets délévation et le cylindre interne à la plaque dadaptateur, le manchon étant configuré pour limiter le cylindre interne à des déplacements sensiblement linéaires à travers celui-ci.
M-I L.l.c.
Smart & Biggar
LandOfFree
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