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Class Information
Number: 166/202
Name: Wells > Packers or plugs > Cup type
Description: Devices in which the laterally expansible blocking portion of the device has one end thereof attached to and adjacent to a central pipe support and the other longitudinally displaced end portion spaced from the support axis and in which the blocking portion is flexible or hinged to the support whereby the fluid pressure of the fluid, the flow of which is being stopped, tends to cause the spaced end portion to engage the enclosing conduit more tightly.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7562705 |
Packer cup for a packoff nipple |
Jul. 21, 2009 |
| 7552769 |
Packoff nipple |
Jun. 30, 2009 |
| 7552778 |
Seal cup for a wellbore tool and method |
Jun. 30, 2009 |
| 7380592 |
Pressure control tool for modluating pressure in a portion of a wellbore |
Jun. 3, 2008 |
| 7377312 |
Oil well pump apparatus |
May. 27, 2008 |
| 7357177 |
Restriction tolerant packer cup |
Apr. 15, 2008 |
| 7328742 |
Seal cup for a wellbore tool and method |
Feb. 12, 2008 |
| 7322413 |
Equalizer valve assembly |
Jan. 29, 2008 |
| 7296627 |
Method for simultaneous removal of asphaltene, and/or paraffin and scale from producing oil wells |
Nov. 20, 2007 |
| 7278477 |
Cup tool, cup tool cup and method of using the cup tool |
Oct. 9, 2007 |
| 7275592 |
Oil well pump apparatus |
Oct. 2, 2007 |
| 7264047 |
Annular isolators for expandable tubulars in wellbores |
Sep. 4, 2007 |
| 7261153 |
Packer cups |
Aug. 28, 2007 |
| 7243733 |
Cup tool for a high-pressure mandrel and method of using same |
Jul. 17, 2007 |
| 7191833 |
Sand control screen assembly having fluid loss control capability and method for use of same |
Mar. 20, 2007 |
| 7178588 |
Flexible cup for downhole devices |
Feb. 20, 2007 |
| 7134488 |
Isolation assembly for coiled tubing |
Nov. 14, 2006 |
| 7028769 |
Well bore cleaning and tubular circulating and flow-back apparatus |
Apr. 18, 2006 |
| 7011157 |
Method and apparatus for cleaning a fractured interval between two packers |
Mar. 14, 2006 |
| 7004248 |
High expansion non-elastomeric straddle tool |
Feb. 28, 2006 |
| 6951262 |
Method and apparatus for suppressing waves in a borehole |
Oct. 4, 2005 |
| 6918441 |
Cup tool for high pressure mandrel |
Jul. 19, 2005 |
| 6883605 |
Wellbore cleanout tool and method |
Apr. 26, 2005 |
| 6840328 |
Anti-extrusion apparatus and method |
Jan. 11, 2005 |
| 6827150 |
High expansion packer |
Dec. 7, 2004 |
| 6668938 |
Cup packer |
Dec. 30, 2003 |
| 6554068 |
Method of downhole fluid separation and displacement and a plug utilized therein |
Apr. 29, 2003 |
| 6454001 |
Method and apparatus for plugging wells |
Sep. 24, 2002 |
| 6371207 |
Method and apparatus for displacing drilling fluids with completion and workover fluids, and for cleaning tubular members |
Apr. 16, 2002 |
| 6318461 |
High expansion elastomeric plug |
Nov. 20, 2001 |
| 5803177 |
Well treatment fluid placement tool and methods |
Sep. 8, 1998 |
| 5579843 |
Resilient spider for well installation |
Dec. 3, 1996 |
| 5522458 |
High pressure cementing plug assemblies |
Jun. 4, 1996 |
| 5465791 |
Resilient spider for well installation |
Nov. 14, 1995 |
| 5318118 |
Cup type casing packer cementing shoe |
Jun. 7, 1994 |
| 5295279 |
Cup for use on a pipeline |
Mar. 22, 1994 |
| 5293934 |
Ground water sampling unit having a fluid-operated seal |
Mar. 15, 1994 |
| 5226492 |
Double seals packers for subterranean wells |
Jul. 13, 1993 |
| 5209304 |
Propulsion apparatus for positioning selected tools in tubular members |
May. 11, 1993 |
| 5129660 |
Seal assembly for a well housing hanger structure |
Jul. 14, 1992 |
| 5117910 |
Packer for use in, and method of, cementing a tubing string in a well without drillout |
Jun. 2, 1992 |
| 5078211 |
Plastic packer |
Jan. 7, 1992 |
| 5060723 |
Wellhead isolation tool nipple |
Oct. 29, 1991 |
| 5036922 |
Single plug arrangement, lock therefor and method of use |
Aug. 6, 1991 |
| 5033551 |
Well packer and method |
Jul. 23, 1991 |
| 5010958 |
Multiple cup bridge plug for sealing a well casing and method |
Apr. 30, 1991 |
| 4961465 |
Casing packer shoe |
Oct. 9, 1990 |
| 4930577 |
Well sealing apparatus and method |
Jun. 5, 1990 |
| 4921046 |
Horizontal hole cleanup tool |
May. 1, 1990 |
| 4869320 |
Wellbore packer |
Sep. 26, 1989 |
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