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Class Information
Number: 166/182
Name: Wells > Packers or plugs > With detachable setting means > Packer or plug locked expanded
Description: Devices in which the sealing portion of the packer or plug is maintained in laterally expanded condition after the setting means is detached by a ratchet, dog or latch other than an expanding anchor as defined in subclass 206.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8607861 Metal-to-metal seal with retention device Dec. 17, 2013
8181708 Water swelling rubber compound for use in reactive packers and other downhole tools May. 22, 2012
8061420 Downhole isolation tool Nov. 22, 2011
7963322 Large bore packer and methods of setting same Jun. 21, 2011
7909109 Anchoring device for a wellbore tool Mar. 22, 2011
7909107 High capacity running tool and method of setting a packoff seal Mar. 22, 2011
7832472 Hydraulic open hole packer Nov. 16, 2010
7779905 Subterranean well tool including a locking seal healing system Aug. 24, 2010
7779908 Arrangement for affixing an expandable packer in a hole Aug. 24, 2010
7779926 Wellbore plug adapter kit and method of using thereof Aug. 24, 2010
7703525 Well perforating and fracturing Apr. 27, 2010
7694746 Large bore packer and methods of setting same Apr. 13, 2010
7673693 Hydraulic coiled tubing retrievable bridge plug Mar. 9, 2010
7341111 Expandable bridge plug and setting assembly Mar. 11, 2008
7204305 System and method for installing a liner in a borehole Apr. 17, 2007
7147052 Hyraulically releasable inflation tool for permanent bridge plug Dec. 12, 2006
7086481 Wellbore isolation apparatus, and method for tripping pipe during underbalanced drilling Aug. 8, 2006
7011153 Hydraulically released inflation tool for permanent bridge plug Mar. 14, 2006
6926088 Sequential release packer J tools for single trip insertion and extraction Aug. 9, 2005
6915858 Element latch system and method of use Jul. 12, 2005
6779600 Labyrinth lock seal for hydrostatically set packer Aug. 24, 2004
6745844 Hydraulic power source for downhole instruments and actuators Jun. 8, 2004
6736214 Running tool and wellbore component assembly May. 18, 2004
6705615 Sealing system and method Mar. 16, 2004
6688400 Downhole sealing Feb. 10, 2004
6675890 Packing device for oil wells Jan. 13, 2004
6629563 Packer releasing system Oct. 7, 2003
6315054 Assembly and method for locating lateral wellbores drilled from a main wellbore casing and for guiding and positioning re-entry and completion device in relation to these lateral wellbores Nov. 13, 2001
6167970 Isolation tool release mechanism Jan. 2, 2001
6167963 Removable non-metallic bridge plug or packer Jan. 2, 2001
6152233 Surge anchor assembly Nov. 28, 2000
6142227 Expandable retrievable bridge plug Nov. 7, 2000
5884699 Retrievable torque-through packer having high strength and reduced cross-sectional area Mar. 23, 1999
5813458 Indicating dog sub for weight-set packers Sep. 29, 1998
5791413 Wireline-set, retrievable packer with flow control plug at the top Aug. 11, 1998
5579839 Bulge control compression packer Dec. 3, 1996
5560426 Downhole tool actuating mechanism Oct. 1, 1996
5433269 Retrievable packer for high temperature, high pressure service Jul. 18, 1995
5355961 Metal and elastomer casing hanger seal Oct. 18, 1994
5339894 Rubber seal adaptor Aug. 23, 1994
5333692 Straight bore metal-to-metal wellbore seal apparatus and method of sealing in a wellbore Aug. 2, 1994
5327965 Wellhead completion system Jul. 12, 1994
5311938 Retrievable packer for high temperature, high pressure service May. 17, 1994
5307879 Positive lockdown for metal seal May. 3, 1994
5174376 Metal-to-metal annulus packoff for a subsea wellhead system Dec. 29, 1992
5143015 Coiled tubing set inflatable packer, bridge plug and releasing tool therefor Sep. 1, 1992
5141053 Compact dual packer with locking dogs Aug. 25, 1992
5113939 Single bore packer with dual flow conversion for gas lift completion May. 19, 1992
5110144 Casing hanger seal assembly May. 5, 1992
5095978 Hydraulically operated permanent type well packer assembly Mar. 17, 1992

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