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Class Information
Number: 166/179
Name: Wells > Packers or plugs
Description: Devices insertable from the top of or well into a well conduit and comprising: (1) Means usually known as a packer and comprising a vertical or longitudinally extending tubular member forming a fluid passage and an annular means projecting from the member and blocking fluid flow either up or down or both in the annular space between the tubular member and the surrounding well conduit, said means comprising structure which goes beyond a mere packing assembly or (2) means usually known as a plug and comprising a means for blocking the flow of fluid either up or down or both in a surrounding well conduit by filling the bore of the conduit.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7604048 |
Spring energized debris barrier for mechanically set retrievable packer |
Oct. 20, 2009 |
| 7597152 |
Swelling layer inflatable |
Oct. 6, 2009 |
| 7584787 |
Sealing device for plugging a pipe or a well |
Sep. 8, 2009 |
| 7562709 |
Gravel pack apparatus that includes a swellable element |
Jul. 21, 2009 |
| 7562704 |
Delaying swelling in a downhole packer element |
Jul. 21, 2009 |
| 7559364 |
Bridge plug and setting tool |
Jul. 14, 2009 |
| 7552767 |
Closeable open cell foam for downhole use |
Jun. 30, 2009 |
| 7552768 |
Swelling packer element with enhanced sealing force |
Jun. 30, 2009 |
| 7543635 |
Fracture characterization using reservoir monitoring devices |
Jun. 9, 2009 |
| 7527099 |
System for sealing a space in a wellbore |
May. 5, 2009 |
| 7510014 |
Plug systems and methods for using plugs in subterranean formations |
Mar. 31, 2009 |
| 7493945 |
Expandable packer with mounted exterior slips and seal |
Feb. 24, 2009 |
| 7478679 |
Field assembled packer |
Jan. 20, 2009 |
| 7472757 |
Well packing |
Jan. 6, 2009 |
| 7449431 |
Additive for increasing the density of a fluid for casing annulus pressure control |
Nov. 11, 2008 |
| 7441596 |
Swelling element packer and installation method |
Oct. 28, 2008 |
| 7431098 |
System and method for isolating a wellbore region |
Oct. 7, 2008 |
| 7422071 |
Swelling packer with overlapping petals |
Sep. 9, 2008 |
| 7404437 |
Annular isolators for expandable tubulars in wellbores |
Jul. 29, 2008 |
| 7392841 |
Self boosting packing element |
Jul. 1, 2008 |
| 7387158 |
Self energized packer |
Jun. 17, 2008 |
| 7387170 |
Expandable packer with mounted exterior slips and seal |
Jun. 17, 2008 |
| 7373991 |
Swellable elastomer-based apparatus, oilfield elements comprising same, and methods of using same in oilfield applications |
May. 20, 2008 |
| 7363986 |
Annular isolators for expandable tubulars in wellbores |
Apr. 29, 2008 |
| 7363975 |
Push/pull belleville stack for use with zertech MTM seal |
Apr. 29, 2008 |
| 7322416 |
Methods of servicing a well bore using self-activating downhole tool |
Jan. 29, 2008 |
| 7320367 |
Annular isolators for expandable tubulars in wellbores |
Jan. 22, 2008 |
| 7316271 |
Deformable member |
Jan. 8, 2008 |
| 7299882 |
Annular isolators for expandable tubulars in wellbores |
Nov. 27, 2007 |
| 7264047 |
Annular isolators for expandable tubulars in wellbores |
Sep. 4, 2007 |
| 7264061 |
Well packer for a pipe string and a method of leading a line past the well packer |
Sep. 4, 2007 |
| 7253745 |
Corrosion-resistant downhole transmission system |
Aug. 7, 2007 |
| 7152689 |
System and method to seal by bringing the wall of a wellbore into sealing contact with a tubing |
Dec. 26, 2006 |
| 7143832 |
Well packing |
Dec. 5, 2006 |
| 7128145 |
High expansion sealing device with leak path closures |
Oct. 31, 2006 |
| 7063164 |
System and method to seal by bringing the wall of a wellbore into sealing contact with a tubing |
Jun. 20, 2006 |
| 7059415 |
Wellbore system with annular seal member |
Jun. 13, 2006 |
| 7000697 |
Downhole measurement apparatus and technique |
Feb. 21, 2006 |
| 6945330 |
Slickline power control interface |
Sep. 20, 2005 |
| 6923263 |
Well sealing method and apparatus |
Aug. 2, 2005 |
| 6719046 |
Apparatus for controlling the annulus of an inner string and casing string |
Apr. 13, 2004 |
| 6588505 |
Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation |
Jul. 8, 2003 |
| 6530574 |
Method and apparatus for expansion sealing concentric tubular structures |
Mar. 11, 2003 |
| 6513601 |
Method for setting a packer in a well bore, and a packer |
Feb. 4, 2003 |
| 6470965 |
Device for introducing a high pressure fluid into well head components |
Oct. 29, 2002 |
| 6311771 |
Plug for use in wellbore operations and apparatus for launching said plug |
Nov. 6, 2001 |
| 6173788 |
Wellpacker and a method of running an I-wire or control line past a packer |
Jan. 16, 2001 |
| 6167963 |
Removable non-metallic bridge plug or packer |
Jan. 2, 2001 |
| 5857520 |
Backup shoe for well packer |
Jan. 12, 1999 |
| 5641019 |
Swab-resistant subterranean well packer |
Jun. 24, 1997 |
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