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Class Information
Number: 166/177.3
Name: Wells > Wiper
Description: Apparatus having a means for cleaning the interior surface of a tubular well member.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7475731 |
Sand plunger |
Jan. 13, 2009 |
| 7404436 |
Downhole tool |
Jul. 29, 2008 |
| 7395865 |
Gas lift plunger arrangement |
Jul. 8, 2008 |
| 7261153 |
Packer cups |
Aug. 28, 2007 |
| 7143829 |
Downhole tool |
Dec. 5, 2006 |
| 7028769 |
Well bore cleaning and tubular circulating and flow-back apparatus |
Apr. 18, 2006 |
| 6953086 |
Bi-directional traction apparatus |
Oct. 11, 2005 |
| 6901999 |
Swabbing tool for wells |
Jun. 7, 2005 |
| 6851480 |
Gas operated automatic, liquid pumping system for wells |
Feb. 8, 2005 |
| 6799638 |
Method, apparatus and system for selective release of cementing plugs |
Oct. 5, 2004 |
| 6745839 |
Borehole cleaning apparatus and method |
Jun. 8, 2004 |
| 6739391 |
Surface deployed cement separation plug |
May. 25, 2004 |
| 6725917 |
Downhole apparatus |
Apr. 27, 2004 |
| 6595282 |
Fluid filled drill pipe plug |
Jul. 22, 2003 |
| 6523612 |
Method and apparatus for cleaning wellbore casing |
Feb. 25, 2003 |
| 6513590 |
System for running tubular members |
Feb. 4, 2003 |
| 6491103 |
System for running tubular members |
Dec. 10, 2002 |
| 6460616 |
Traction apparatus |
Oct. 8, 2002 |
| 6453996 |
Apparatus incorporating jet pump for well head cleaning |
Sep. 24, 2002 |
| 6347667 |
Well clean-up tool with improved cleaning member |
Feb. 19, 2002 |
| 6311774 |
Method and apparatus for securing a well casing to a wellbore |
Nov. 6, 2001 |
| 6220356 |
Method and apparatus for well treating |
Apr. 24, 2001 |
| 5921320 |
Process and device for raising liquids from wells |
Jul. 13, 1999 |
| 5865245 |
Stuffing box gland |
Feb. 2, 1999 |
| 5836386 |
Wiping element for a drill pipe ID wiping device |
Nov. 17, 1998 |
| 5732774 |
Drill wiper assembly |
Mar. 31, 1998 |
| 5641018 |
Apparatus and method for cementing wells |
Jun. 24, 1997 |
| 5462115 |
Gas and oil well swab |
Oct. 31, 1995 |
| 5127472 |
Indicating ball catcher |
Jul. 7, 1992 |
| 5119874 |
Swab cup and swab assembly |
Jun. 9, 1992 |
| 5012866 |
Drill stem mud wiping apparatus |
May. 7, 1991 |
| 4923011 |
Drill stem mud wiping apparatus |
May. 8, 1990 |
| 4896720 |
Method and system for cleaning well casing |
Jan. 30, 1990 |
| 4658894 |
Well head pipe stripper |
Apr. 21, 1987 |
| 4607693 |
Side-entry sub |
Aug. 26, 1986 |
| 4580635 |
Automatic drill pipe inside wiper |
Apr. 8, 1986 |
| 4392528 |
Swabbing cup construction for swabbing an oil well pipe |
Jul. 12, 1983 |
| 4391324 |
Geothermal well head and actuator assembly |
Jul. 5, 1983 |
| 4299282 |
Well cleaner |
Nov. 10, 1981 |
| 4221264 |
Tubular interior wiper |
Sep. 9, 1980 |
| 4024913 |
Well installations employing non-metallic lines, tubing casing and machinery |
May. 24, 1977 |
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