E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 27/00 (2006.01) E21B 23/04 (2006.01) E21B 37/08 (2006.01) E21B 43/12 (2006.01)
Patent
CA 2541947
The present invention provides a simple debris removal apparatus (200) for use in a wellbore. In one aspect of the invention a modular, interchangeable venture (210) is provided which can be retrofit into an existing debris bailer having a filter and a debris collection container (225). In another aspect of the invention, a venturi is utilised to create a negative pressure in a wellbore sufficient to actuate a retrieval tool for a downhole device. In yet another aspect of the invention, a combination tool is provided which can evacuate debris in a wellbore, thereby uncovering a downhole device which can then be removed in a single trip. In yet another aspect of the invention, a debris removal apparatus is provided with a method for utilising the apparatus in a wellbore on coiled tubing.
Giroux Richard Lee
Hoffman Corey E.
Luke Mike
Norris Stephen J.
Marks & Clerk
Weatherford/lamb Inc.
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