E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/08 (2006.01) E21B 43/10 (2006.01)
Patent
CA 2337104
A tubing connection arrangement comprises two expandable tubing sections, each tubing section comprising a filter screen sandwiched between inner expandable tubing and outer expandable tubing. The filter screen of one tubing section overlaps the filter screen of the other tubing section and the outer expandable tubing of at least one of the tubing sections extends over the overlapping filter screens. On expansion of the tubing sections, the overlapping filter screens, restrained by the outer tubing, ensure the integrity of the filter between the tubing sections.
L'invention concerne un système (10) de raccord de tubes comprenant deux sections (12, 14) de tube extensibles, chacune de ces sections comprenant une grille (16, 18) filtrante intercalée entre un tube (20, 22) interne extensible et un tube (24, 26) externe extensible. La grille filtrante d'une section de tube chevauche la grille filtrante de l'autre section de tube et le tube externe extensible d'au moins une des sections de tube recouvre les grilles filtrantes superposées. Lors de l'extension des sections de tube, les grilles filtrantes superposées retenues par le tube externe assurent l'intégrité du filtre entre les sections de tube.
Marks & Clerk
Petroline Wellsystems Limited
Weatherford/lamb Inc.
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