摘要 |
The present invention provides a simple debris removal apparatus (200) for use in a wellbore. In one aspect of the invention a modular, interchangeable venturi (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.
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申请人 |
WEATHERFORD/LAMB, INC.;HARDING, RICHARD, PATRICK;HARDING, RICHARD, PATRICK;GIROUX, RICHARD, LEE;LUKE, MIKE;HOFFMAN, COREY, E.;NORRIS, STEPHEN, J. |
发明人 |
GIROUX, RICHARD, LEE;LUKE, MIKE;HOFFMAN, COREY, E.;NORRIS, STEPHEN, J. |