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Class Information
Number: 166/170
Name: Wells > Brushing, scraping, cutting or punching-type cleaners
Description: Devices comprising means for cleaning well conduits or other devices in a well by brushing, scraping, cutting or punching.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7621327 |
Downhole seal bore repair device |
Nov. 24, 2009 |
| 7314083 |
Slow rotation fluid jetting tool for cleaning a well bore |
Jan. 1, 2008 |
| 7311141 |
Casing scraper |
Dec. 25, 2007 |
| 7121336 |
Well scrubber |
Oct. 17, 2006 |
| 7049436 |
Carbon dioxide compatible non-aqueous crosslinked fracturing fluids and methods for their use |
May. 23, 2006 |
| 6775872 |
Surface-traversing vehicle |
Aug. 17, 2004 |
| 6575239 |
Well cleaning tool |
Jun. 10, 2003 |
| 6546581 |
Casing scraper |
Apr. 15, 2003 |
| 6530429 |
Downhole cleaning tool with shear clutch |
Mar. 11, 2003 |
| 6523615 |
Electropolishing method for oil field tubular goods and drill pipe |
Feb. 25, 2003 |
| 6523612 |
Method and apparatus for cleaning wellbore casing |
Feb. 25, 2003 |
| 6455483 |
Well stimulation and formation purging composition |
Sep. 24, 2002 |
| 6343648 |
Down-hole tool with detachable cleaning pads |
Feb. 5, 2002 |
| 6302201 |
Method and apparatus for washing subsea drilling rig equipment and retrieving wear bushings |
Oct. 16, 2001 |
| 6227291 |
Compact well clean up tool with multifunction cleaning apparatus |
May. 8, 2001 |
| 6190090 |
Apparatus for use in a pipeline |
Feb. 20, 2001 |
| 6148921 |
Oil extracting installation incorporating manifold support mounting plates, and plate |
Nov. 21, 2000 |
| 6079498 |
Method and equipment for the flow of offshore oil production |
Jun. 27, 2000 |
| 6076603 |
Method for removal and treatment of paraffin |
Jun. 20, 2000 |
| 6032929 |
Arrangement in connection with a yoke in a hoisting system for a derrick |
Mar. 7, 2000 |
| 5884700 |
Interior coating of gas well tubing |
Mar. 23, 1999 |
| 5732774 |
Drill wiper assembly |
Mar. 31, 1998 |
| 5372191 |
Device for removing paraffin and other deposits from the internal surface of pipes |
Dec. 13, 1994 |
| 5267616 |
Process for running scrapers, particularly for subsea petroleum well lines |
Dec. 7, 1993 |
| 5238061 |
Apparatus for rotating a bit in a well |
Aug. 24, 1993 |
| 5168929 |
Method and apparatus for removal of oil well paraffin |
Dec. 8, 1992 |
| 5127125 |
Pipeline scraper |
Jul. 7, 1992 |
| 5113544 |
Pipeline pig |
May. 19, 1992 |
| 5058668 |
Rod guide bearing assembly for oil well pumping apparatus |
Oct. 22, 1991 |
| 5012866 |
Drill stem mud wiping apparatus |
May. 7, 1991 |
| 4937907 |
Cleaning plug assembly |
Jul. 3, 1990 |
| 4923011 |
Drill stem mud wiping apparatus |
May. 8, 1990 |
| 4921046 |
Horizontal hole cleanup tool |
May. 1, 1990 |
| 4896720 |
Method and system for cleaning well casing |
Jan. 30, 1990 |
| 4844165 |
TFL assembly for a dual diameter flow-line/riser system and flow-line/riser system for use with the assembly |
Jul. 4, 1989 |
| 4705107 |
Apparatus and methods for cleaning a well |
Nov. 10, 1987 |
| 4683946 |
Method and apparatus for the installation and modification of oil well evacuation systems |
Aug. 4, 1987 |
| 4629004 |
Plunger lift for controlling oil and gas production |
Dec. 16, 1986 |
| 4612986 |
Well cleaning apparatus and treating method |
Sep. 23, 1986 |
| 4603739 |
Process for cleaning an oil field well bore hole using an internal casing wiper |
Aug. 5, 1986 |
| 4580635 |
Automatic drill pipe inside wiper |
Apr. 8, 1986 |
| RE32085 |
Tubular member interior wiper |
Feb. 25, 1986 |
| 4515212 |
Internal casing wiper for an oil field well bore hole |
May. 7, 1985 |
| 4418747 |
Shuttle cleaning of heat exchanger tubes |
Dec. 6, 1983 |
| 4391324 |
Geothermal well head and actuator assembly |
Jul. 5, 1983 |
| 4310942 |
Chimney cleaning apparatus |
Jan. 19, 1982 |
| 4287948 |
Tubular member interior wiper |
Sep. 8, 1981 |
| 4237978 |
Method for cleaning a helical spring sand screen in a well |
Dec. 9, 1980 |
| 4083074 |
Multipurpose pipeline pig |
Apr. 11, 1978 |
| 4034807 |
Inside pipe wiper |
Jul. 12, 1977 |
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