E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/10 (2006.01) E21B 17/14 (2006.01) E21B 17/16 (2006.01) E21B 21/10 (2006.01)
Patent
CA 2182788
Improvements in casing installation components are described. The modified construction comprises radial support pedestals incorporating rollers on the outside of said support pedestals so that the rollers reduce longitudinal friction between the component and the well bore. The improvements described may be adapted for use in the construction of casing centralisers, float shoes, float collars and similar equipment which is inserted into the well bore.
La présente invention porte sur des améliorations concernant des composants entrant dans l'installation de tubages. La nouvelle conception comprend des bâtis-support de forme radiale (2) qui incorporent, sur leur côté extérieur, des rouleaux (3) réduisant la friction longitudinale entre le composant et le puits de forage. Les améliorations décrites peuvent être adaptées aux besoins pratiques de la construction de centralisateurs de tubages, de segments flottants, d'anneaux de retenue pour bouchons et d'équipements similaires, introduits dans le puits de forage.
Austoil Drilling Services Pty. Ltd.
Marks & Clerk
Weatherford/lamb Inc.
LandOfFree
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