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Class Information
Number: 166/177.4
Name: Wells > Cementing device
Description: Apparatus comprising specific structure for agitating, vibrating or mixing a slurry used to fix or adhere a pipe to a formation or to another pipe in a well.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7610959 |
Methods and materials for subterranean fluid forming barriers in materials surrounding wells |
Nov. 3, 2009 |
| 7610963 |
Method and device for fluid displacement |
Nov. 3, 2009 |
| 7607481 |
Method and apparatus for dropping a pump down plug or ball |
Oct. 27, 2009 |
| 7597146 |
Methods and apparatus for completion of well bores |
Oct. 6, 2009 |
| 7549475 |
Systems for actuating a downhole tool |
Jun. 23, 2009 |
| 7540326 |
System and method for well treatment and perforating operations |
Jun. 2, 2009 |
| 7540325 |
Well cementing apparatus and method |
Jun. 2, 2009 |
| 7533720 |
Seal configuration for top drive swivel apparatus and method |
May. 19, 2009 |
| 7533729 |
Reverse cementing float equipment |
May. 19, 2009 |
| 7510014 |
Plug systems and methods for using plugs in subterranean formations |
Mar. 31, 2009 |
| 7510007 |
Double swivel apparatus and method |
Mar. 31, 2009 |
| 7487831 |
Downhole surge pressure reduction and filtering apparatus |
Feb. 10, 2009 |
| 7481272 |
Completion apparatus and methods for use in wellbores |
Jan. 27, 2009 |
| 7472752 |
Apparatus and method for forming multiple plugs in a wellbore |
Jan. 6, 2009 |
| 7451817 |
Methods of using casing strings in subterranean cementing operations |
Nov. 18, 2008 |
| 7438133 |
Apparatus and method for radially expanding and plastically deforming a tubular member |
Oct. 21, 2008 |
| 7428927 |
Cement float and method for drilling and casing a wellbore with a pump down cement float |
Sep. 30, 2008 |
| 7409991 |
Methods of using casing strings in subterranean cementing operations |
Aug. 12, 2008 |
| 7387159 |
Blending system for solid/fluids mixtures |
Jun. 17, 2008 |
| 7373980 |
Mono-trip cement thru completion |
May. 20, 2008 |
| 7370698 |
Method and apparatus for transferring rig weight to tubulars |
May. 13, 2008 |
| 7357181 |
Apparatus for autofill deactivation of float equipment and method of reverse cementing |
Apr. 15, 2008 |
| 7325610 |
Methods and apparatus for handling and drilling with tubulars or casing |
Feb. 5, 2008 |
| 7322412 |
Casing shoes and methods of reverse-circulation cementing of casing |
Jan. 29, 2008 |
| 7322413 |
Equalizer valve assembly |
Jan. 29, 2008 |
| 7311148 |
Methods and apparatus for wellbore construction and completion |
Dec. 25, 2007 |
| 7290611 |
Methods and systems for cementing wells that lack surface casing |
Nov. 6, 2007 |
| 7287584 |
Anchoring device for a wellbore tool |
Oct. 30, 2007 |
| 7281582 |
Double swivel apparatus and method |
Oct. 16, 2007 |
| 7270181 |
Downhole surge pressure reduction and filtering apparatus |
Sep. 18, 2007 |
| 7270177 |
Instrumented packer |
Sep. 18, 2007 |
| 7252147 |
Cementing methods and systems for initiating fluid flow with reduced pumping pressure |
Aug. 7, 2007 |
| 7252152 |
Methods and apparatus for actuating a downhole tool |
Aug. 7, 2007 |
| 7249632 |
Top drive swivel apparatus and method |
Jul. 31, 2007 |
| 7240731 |
Shoe for expandable liner system and method |
Jul. 10, 2007 |
| 7228897 |
Cement through side pocket mandrel |
Jun. 12, 2007 |
| 7225871 |
Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore |
Jun. 5, 2007 |
| 7219732 |
Methods of sequentially injecting different sealant compositions into a wellbore to improve zonal isolation |
May. 22, 2007 |
| 7204304 |
Removable surface pack-off device for reverse cementing applications |
Apr. 17, 2007 |
| 7172021 |
Liner hanger with sliding sleeve valve |
Feb. 6, 2007 |
| 7124816 |
Liquid separation device |
Oct. 24, 2006 |
| 7096948 |
Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing |
Aug. 29, 2006 |
| 7080687 |
Anti-rotation method and apparatus for limiting rotation of cementing plugs |
Jul. 25, 2006 |
| 7069992 |
Mono-trip cement thru completion |
Jul. 4, 2006 |
| 7066256 |
Apparatus and method of detecting interfaces between well fluids |
Jun. 27, 2006 |
| 7066249 |
Cementing manifold assembly |
Jun. 27, 2006 |
| 7055610 |
Plug concealment and diversion tool |
Jun. 6, 2006 |
| 7048066 |
Downhole sealing tools and method of use |
May. 23, 2006 |
| 7044221 |
Apparatus for coupling a tubular member to a preexisting structure |
May. 16, 2006 |
| 7040402 |
Instrumented packer |
May. 9, 2006 |
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