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Class Information
Number: 166/158
Name: Wells > Screen with washing point or shoe > Detachable wash pipe
Description: Devices in which there is a separate pipe associated with the screen for passing fluid downwardly into the well to wash the screen, the separate pipe being readily removable from association with the screen structure while the screen remains in the well.

Patents under this class:

Patent Number Title Of Patent Date Issued
8376058 Well drilling wash down end cap and method Feb. 19, 2013
8136589 Sand control screen assembly having control line capture capability Mar. 20, 2012
7832489 Methods and systems for completing a well with fluid tight lower completion Nov. 16, 2010
7243742 Drill pipe screen Jul. 17, 2007
6202742 Pack-off device for use in a wellbore having a packer assembly located therein Mar. 20, 2001
5676208 Apparatus and methods of preventing screen collapse in gravel packing operations Oct. 14, 1997
5579844 Single trip open hole well completion system and method Dec. 3, 1996
5327960 Gravel pack installations for wells Jul. 12, 1994
4860831 Well apparatuses and methods Aug. 29, 1989
4825944 Gravel pack completion for in situ leach wells May. 2, 1989

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