E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/20 (2006.01) E21B 10/32 (2006.01) E21B 43/10 (2006.01)
Patent
CA 2447672
A method of lining and drilling a bore (10) comprising mounting a first section of bore-lining tubing (20) on the lower end portion of a drill string (18); running the drill string and tubing into a bore having an unlined section and an existing tubing lined section; locating the first tubing section (20) in the unlined section: uncoupling the first tubing section (20) from the drill string (18); and drilling the bore beyond the first tubing section. The bore-lining tubing (20) may include an hanger section overlapping the existing tubing and may be expanded.
L'invention concerne un procédé de gainage et de forage d'un puits (10) comprenant les étapes suivantes : montage d'une première section d'un tube (20) de gainage de puits sur la partie de l'extrémité inférieure d'un train de tiges (18) ; fonctionnement du train de tiges et tubage dans un puits présentant une section non gainée et une section de tube existant gainé ; localisation de la première section de tube (20) du train de tiges (18) ; et forage du puits au-dessus de la première section de tube. Le tube de gainage de puits (20) peut comprendre une partie de suspension qui chevauche ledit tube existant et peut être expansé.
Abercrombie Simpson Neil Andrew
Harrall Simon John
Marks & Clerk
Weatherford/lamb Inc.
LandOfFree
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